Port FBX module from commit 68013d23932688e57b489600f4517dd280edc464

Ports FBX module from 3.2 branch to 4.0

This is the only time the plugin will be updated from 3.2 and marks the final time we do this, from now on we will backport FBX to 3.2 with fixes.

Changelog:
- fixed crash importing files with buggy format (because of bad newlines in ASCII data, this is yet to be fixed fully)
- fixed const correctness with C++/C version change
- rewrote material handling to be simpler and better
- ports from 3.2 to 4.0 the fbx importer

1 files changed, 112 insertions, 0 deletions

diff --git a/modules/fbx/data/import_state.h b/modules/fbx/data/import_state.h
new file mode 100644
index 0000000000..34021ca7b1
--- /dev/null
+++ b/modules/fbx/data/import_state.h
@@ -0,0 +1,112 @@
+/*************************************************************************/
+/*  import_state.h                                                       */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef IMPORT_STATE_H
+#define IMPORT_STATE_H
+
+#include "fbx_mesh_data.h"
+#include "tools/import_utils.h"
+#include "tools/validation_tools.h"
+
+#include "pivot_transform.h"
+
+#include "core/core_bind.h"
+#include "core/io/resource_importer.h"
+#include "core/templates/vector.h"
+#include "editor/import/resource_importer_scene.h"
+#include "editor/project_settings_editor.h"
+#include "scene/3d/mesh_instance_3d.h"
+#include "scene/3d/node_3d.h"
+#include "scene/3d/skeleton_3d.h"
+#include "scene/animation/animation_player.h"
+#include "scene/resources/animation.h"
+#include "scene/resources/surface_tool.h"
+
+#include "modules/fbx/fbx_parser/FBXDocument.h"
+#include "modules/fbx/fbx_parser/FBXImportSettings.h"
+#include "modules/fbx/fbx_parser/FBXMeshGeometry.h"
+#include "modules/fbx/fbx_parser/FBXParser.h"
+#include "modules/fbx/fbx_parser/FBXTokenizer.h"
+#include "modules/fbx/fbx_parser/FBXUtil.h"
+
+struct FBXBone;
+struct FBXMeshData;
+struct FBXNode;
+struct FBXSkeleton;
+
+struct ImportState {
+	bool enable_material_import = true;
+	bool enable_animation_import = true;
+
+	Map<StringName, Ref<Texture>> cached_image_searches;
+	Map<uint64_t, Ref<Material>> cached_materials;
+
+	String path = String();
+	Node3D *root_owner = nullptr;
+	Node3D *root = nullptr;
+	real_t scale = 0.01;
+	Ref<FBXNode> fbx_root_node = Ref<FBXNode>();
+	// skeleton map - merged automatically when they are on the same x node in the tree so we can merge them automatically.
+	Map<uint64_t, Ref<FBXSkeleton>> skeleton_map = Map<uint64_t, Ref<FBXSkeleton>>();
+
+	// nodes on the same level get merged automatically.
+	//Map<uint64_t, Skeleton3D *> armature_map;
+	AnimationPlayer *animation_player = nullptr;
+
+	// Generation 4 - Raw document accessing for bone/skin/joint/kLocators
+	// joints are not necessarily bones but must be merged into the skeleton
+	// (bone id), bone
+	Map<uint64_t, Ref<FBXBone>> fbx_bone_map = Map<uint64_t, Ref<FBXBone>>(); // this is the bone name and setup information required for joints
+	// this will never contain joints only bones attached to a mesh.
+
+	// Generation 4 - Raw document for creating the nodes transforms in the scene
+	// this is a list of the nodes in the scene
+	// (id, node)
+	List<Ref<FBXNode>> fbx_node_list = List<Ref<FBXNode>>();
+
+	// All nodes which have been created in the scene
+	// this will not contain the root node of the scene
+	Map<uint64_t, Ref<FBXNode>> fbx_target_map = Map<uint64_t, Ref<FBXNode>>();
+
+	// mesh nodes which are created in node / mesh step - used for populating skin poses in MeshSkins
+	Map<uint64_t, Ref<FBXNode>> MeshNodes = Map<uint64_t, Ref<FBXNode>>();
+	// mesh skin map
+	Map<uint64_t, Ref<Skin>> MeshSkins = Map<uint64_t, Ref<Skin>>();
+
+	// this is the container for the mesh weight information and eventually
+	// any mesh data
+	// but not the skin, just stuff important for rendering
+	// skin is applied to mesh instance so not really required to be in here yet.
+	// maybe later
+	// fbx mesh id, FBXMeshData
+	Map<uint64_t, Ref<FBXMeshData>> renderer_mesh_data = Map<uint64_t, Ref<FBXMeshData>>();
+};
+
+#endif // IMPORT_STATE_H