diff options
Diffstat (limited to 'modules/fbx/data')
| -rw-r--r-- | modules/fbx/data/fbx_anim_container.h | 46 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_bone.cpp | 56 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_bone.h | 90 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_material.cpp | 464 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_material.h | 286 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_mesh_data.cpp | 1447 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_mesh_data.h | 184 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_node.h | 63 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_skeleton.cpp | 123 | ||||
| -rw-r--r-- | modules/fbx/data/fbx_skeleton.h | 53 | ||||
| -rw-r--r-- | modules/fbx/data/import_state.h | 113 | ||||
| -rw-r--r-- | modules/fbx/data/model_abstraction.h | 52 | ||||
| -rw-r--r-- | modules/fbx/data/pivot_transform.cpp | 294 | ||||
| -rw-r--r-- | modules/fbx/data/pivot_transform.h | 115 |
14 files changed, 3386 insertions, 0 deletions
diff --git a/modules/fbx/data/fbx_anim_container.h b/modules/fbx/data/fbx_anim_container.h new file mode 100644 index 0000000000..8c25d65871 --- /dev/null +++ b/modules/fbx/data/fbx_anim_container.h @@ -0,0 +1,46 @@ +/*************************************************************************/ +/* fbx_anim_container.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_ANIM_CONTAINER_H +#define FBX_ANIM_CONTAINER_H + +#include "core/math/vector3.h" + +// Generic keyframes 99.99 percent of files will be vector3, except if quat interp is used, or visibility tracks +// FBXTrack is used in a map in the implementation in fbx/editor_scene_importer_fbx.cpp +// to avoid having to rewrite the entire logic I refactored this into the code instead. +// once it works I can rewrite so we can add the fun misc features / small features +struct FBXTrack { + bool has_default = false; + Vector3 default_value; + std::map<int64_t, Vector3> keyframes; +}; + +#endif //MODEL_ABSTRACTION_ANIM_CONTAINER_H diff --git a/modules/fbx/data/fbx_bone.cpp b/modules/fbx/data/fbx_bone.cpp new file mode 100644 index 0000000000..38dada33af --- /dev/null +++ b/modules/fbx/data/fbx_bone.cpp @@ -0,0 +1,56 @@ +/*************************************************************************/ +/* fbx_bone.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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. */ +/*************************************************************************/ + +#include "fbx_bone.h" + +#include "fbx_node.h" +#include "import_state.h" + +Ref<FBXNode> FBXSkinDeformer::get_link(const ImportState &state) const { + print_verbose("bone name: " + bone->bone_name); + + // safe for when deformers must be polyfilled when skin has different count of binds to bones in the scene ;) + if (!cluster) { + return nullptr; + } + + ERR_FAIL_COND_V_MSG(cluster->TargetNode() == nullptr, nullptr, "bone has invalid target node"); + + Ref<FBXNode> link_node; + uint64_t id = cluster->TargetNode()->ID(); + if (state.fbx_target_map.has(id)) { + link_node = state.fbx_target_map[id]; + } else { + print_error("link node not found for " + itos(id)); + } + + // the node in space this is for, like if it's FOR a target. + return link_node; +} diff --git a/modules/fbx/data/fbx_bone.h b/modules/fbx/data/fbx_bone.h new file mode 100644 index 0000000000..efba147b89 --- /dev/null +++ b/modules/fbx/data/fbx_bone.h @@ -0,0 +1,90 @@ +/*************************************************************************/ +/* fbx_bone.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_BONE_H +#define FBX_BONE_H + +#include "fbx_node.h" +#include "import_state.h" + +#include "fbx_parser/FBXDocument.h" + +struct PivotTransform; + +struct FBXBone : public Reference { + uint64_t parent_bone_id = 0; + uint64_t bone_id = 0; + + bool valid_parent = false; // if the parent bone id is set up. + String bone_name = String(); // bone name + + bool is_root_bone() const { + return !valid_parent; + } + + // Godot specific data + int godot_bone_id = -2; // godot internal bone id assigned after import + + // if a bone / armature is the root then FBX skeleton will contain the bone not any other skeleton. + // this is to support joints by themselves in scenes + bool valid_armature_id = false; + uint64_t armature_id = 0; + + /* link node is the parent bone */ + mutable const FBXDocParser::Geometry *geometry = nullptr; + mutable const FBXDocParser::ModelLimbNode *limb_node = nullptr; + + void set_node(Ref<FBXNode> p_node) { + node = p_node; + } + + // Stores the pivot xform for this bone + + Ref<FBXNode> node = nullptr; + Ref<FBXBone> parent_bone = nullptr; + Ref<FBXSkeleton> fbx_skeleton = nullptr; +}; + +struct FBXSkinDeformer { + FBXSkinDeformer(Ref<FBXBone> p_bone, const FBXDocParser::Cluster *p_cluster) : + cluster(p_cluster), bone(p_bone) {} + ~FBXSkinDeformer() {} + const FBXDocParser::Cluster *cluster; + Ref<FBXBone> bone; + + /* get associate model - the model can be invalid sometimes */ + Ref<FBXBone> get_associate_model() const { + return bone->parent_bone; + } + + Ref<FBXNode> get_link(const ImportState &state) const; +}; + +#endif // FBX_BONE_H diff --git a/modules/fbx/data/fbx_material.cpp b/modules/fbx/data/fbx_material.cpp new file mode 100644 index 0000000000..5995097b2f --- /dev/null +++ b/modules/fbx/data/fbx_material.cpp @@ -0,0 +1,464 @@ +/*************************************************************************/ +/* fbx_material.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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. */ +/*************************************************************************/ + +#include "fbx_material.h" +#include "scene/resources/material.h" +#include "scene/resources/texture.h" +#include "tools/validation_tools.h" + +String FBXMaterial::get_material_name() const { + return material_name; +} + +void FBXMaterial::set_imported_material(FBXDocParser::Material *p_material) { + material = p_material; +} + +void FBXMaterial::add_search_string(String p_filename, String p_current_directory, String search_directory, Vector<String> &texture_search_paths) { + if (search_directory.is_empty()) { + texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file(p_filename)); + } else { + texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file(search_directory + "/" + p_filename)); + texture_search_paths.push_back(p_current_directory.get_base_dir().plus_file("../" + search_directory + "/" + p_filename)); + } +} + +String find_file(const String &p_base, const String &p_file_to_find) { + _Directory dir; + dir.open(p_base); + + dir.list_dir_begin(); + String n = dir.get_next(); + while (n != String()) { + if (n == "." || n == "..") { + n = dir.get_next(); + continue; + } + if (dir.current_is_dir()) { + // Don't use `path_to` or the returned path will be wrong. + const String f = find_file(p_base + "/" + n, p_file_to_find); + if (f != "") { + return f; + } + } else if (n == p_file_to_find) { + return p_base + "/" + n; + } + n = dir.get_next(); + } + dir.list_dir_end(); + + return String(); +} + +// fbx will not give us good path information and let's not regex them to fix them +// no relative paths are in fbx generally they have a rel field but it's populated incorrectly by the SDK. +String FBXMaterial::find_texture_path_by_filename(const String p_filename, const String p_current_directory) { + _Directory dir; + Vector<String> paths; + add_search_string(p_filename, p_current_directory, "", paths); + add_search_string(p_filename, p_current_directory, "texture", paths); + add_search_string(p_filename, p_current_directory, "textures", paths); + add_search_string(p_filename, p_current_directory, "Textures", paths); + add_search_string(p_filename, p_current_directory, "materials", paths); + add_search_string(p_filename, p_current_directory, "mats", paths); + add_search_string(p_filename, p_current_directory, "pictures", paths); + add_search_string(p_filename, p_current_directory, "images", paths); + + for (int i = 0; i < paths.size(); i++) { + if (dir.file_exists(paths[i])) { + return paths[i]; + } + } + + // We were not able to find the texture in the common locations, + // try to find it into the project globally. + // The common textures can be stored into one of those folders: + // res://asset + // res://texture + // res://material + // res://mat + // res://image + // res://picture + // + // Note the folders can also be called with custom names, like: + // res://my_assets + // since the keyword `asset` is into the directory name the textures will be + // searched there too. + + dir.open("res://"); + dir.list_dir_begin(); + String n = dir.get_next(); + while (n != String()) { + if (n == "." || n == "..") { + n = dir.get_next(); + continue; + } + if (dir.current_is_dir()) { + const String lower_n = n.to_lower(); + if ( + // Don't need to use plural. + lower_n.find("asset") >= 0 || + lower_n.find("texture") >= 0 || + lower_n.find("material") >= 0 || + lower_n.find("mat") >= 0 || + lower_n.find("image") >= 0 || + lower_n.find("picture") >= 0) { + // Don't use `path_to` or the returned path will be wrong. + const String f = find_file(String("res://") + n, p_filename); + if (f != "") { + return f; + } + } + } + n = dir.get_next(); + } + dir.list_dir_end(); + + return ""; +} + +template <class T> +T extract_from_prop(FBXDocParser::PropertyPtr prop, const T &p_default, const std::string &p_name, const String &p_type) { + ERR_FAIL_COND_V_MSG(prop == nullptr, p_default, "invalid property passed to extractor"); + const FBXDocParser::TypedProperty<T> *val = dynamic_cast<const FBXDocParser::TypedProperty<T> *>(prop); + + ERR_FAIL_COND_V_MSG(val == nullptr, p_default, "The FBX is corrupted, the property `" + String(p_name.c_str()) + "` is a `" + String(typeid(*prop).name()) + "` but should be a " + p_type); + // Make sure to not lost any eventual opacity. + return val->Value(); +} + +Ref<StandardMaterial3D> FBXMaterial::import_material(ImportState &state) { + ERR_FAIL_COND_V(material == nullptr, nullptr); + + const String p_fbx_current_directory = state.path; + + Ref<StandardMaterial3D> spatial_material; + spatial_material.instance(); + + // read the material file + // is material two sided + // read material name + print_verbose("[material] material name: " + ImportUtils::FBXNodeToName(material->Name())); + + material_name = ImportUtils::FBXNodeToName(material->Name()); + + for (const std::pair<std::string, const FBXDocParser::Texture *> iter : material->Textures()) { + const uint64_t texture_id = iter.second->ID(); + const std::string &fbx_mapping_name = iter.first; + const FBXDocParser::Texture *fbx_texture_data = iter.second; + const String absolute_texture_path = iter.second->FileName().c_str(); + const String texture_name = absolute_texture_path.get_file(); + const String file_extension = absolute_texture_path.get_extension().to_upper(); + + const String debug_string = "texture id: " + itos(texture_id) + " texture name: " + String(iter.second->Name().c_str()) + " mapping name: " + String(fbx_mapping_name.c_str()); + // remember errors STILL need this string at the end for when you aren't in verbose debug mode :) they need context for when you're not verbose-ing. + print_verbose(debug_string); + + const String file_extension_uppercase = file_extension.to_upper(); + + if (fbx_transparency_flags.count(fbx_mapping_name) > 0) { + // just enable it later let's make this fine-tuned. + spatial_material->set_transparency(BaseMaterial3D::TRANSPARENCY_ALPHA); + } + + ERR_CONTINUE_MSG(file_extension.is_empty(), "your texture has no file extension so we had to ignore it, let us know if you think this is wrong file an issue on github! " + debug_string); + ERR_CONTINUE_MSG(fbx_texture_map.count(fbx_mapping_name) <= 0, "This material has a texture with mapping name: " + String(fbx_mapping_name.c_str()) + " which is not yet supported by this importer. Consider opening an issue so we can support it."); + ERR_CONTINUE_MSG( + file_extension_uppercase != "PNG" && + file_extension_uppercase != "JPEG" && + file_extension_uppercase != "JPG" && + file_extension_uppercase != "TGA" && + file_extension_uppercase != "WEBP" && + file_extension_uppercase != "DDS", + "The FBX file contains a texture with an unrecognized extension: " + file_extension_uppercase); + + print_verbose("Getting FBX mapping mode for " + String(fbx_mapping_name.c_str())); + // get the texture map type + const StandardMaterial3D::TextureParam mapping_mode = fbx_texture_map.at(fbx_mapping_name); + print_verbose("Set FBX mapping mode to " + get_texture_param_name(mapping_mode)); + + Ref<Texture> texture; + print_verbose("texture mapping name: " + texture_name); + + if (state.cached_image_searches.has(texture_name)) { + texture = state.cached_image_searches[texture_name]; + } else { + String path = find_texture_path_by_filename(texture_name, p_fbx_current_directory); + if (!path.is_empty()) { + Ref<Texture2D> image_texture = ResourceLoader::load(path); + + ERR_CONTINUE(image_texture.is_null()); + + texture = image_texture; + state.cached_image_searches.insert(texture_name, texture); + print_verbose("Created texture from loaded image file."); + + } else if (fbx_texture_data != nullptr && fbx_texture_data->Media() != nullptr && fbx_texture_data->Media()->IsEmbedded()) { + // This is an embedded texture. Extract it. + Ref<Image> image; + //image.instance(); // oooo double instance bug? why make Image::_png_blah call + + const String extension = texture_name.get_extension().to_upper(); + if (extension == "PNG") { + // The stored file is a PNG. + image = Image::_png_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength()); + ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded PNG image load fail."); + + } else if ( + extension == "JPEG" || + extension == "JPG") { + // The stored file is a JPEG. + image = Image::_jpg_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength()); + ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded JPEG image load fail."); + + } else if (extension == "TGA") { + // The stored file is a TGA. + image = Image::_tga_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength()); + ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded TGA image load fail."); + + } else if (extension == "WEBP") { + // The stored file is a WEBP. + image = Image::_webp_mem_loader_func(fbx_texture_data->Media()->Content(), fbx_texture_data->Media()->ContentLength()); + ERR_CONTINUE_MSG(image.is_valid() == false, "FBX Embedded WEBP image load fail."); + + // } else if (extension == "DDS") { + // // In this moment is not possible to extract a DDS from a buffer, TODO consider add it to godot. See `textureloader_dds.cpp::load(). + // // The stored file is a DDS. + } else { + ERR_CONTINUE_MSG(true, "The embedded image with extension: " + extension + " is not yet supported. Open an issue please."); + } + + Ref<ImageTexture> image_texture; + image_texture.instance(); + image_texture->create_from_image(image); + + texture = image_texture; + + // TODO: this is potentially making something with the same name have a match incorrectly USE FBX ID as Hash. #fuck it later. + state.cached_image_searches[texture_name] = texture; + print_verbose("Created texture from embedded image."); + } else { + ERR_CONTINUE_MSG(true, "The FBX texture, with name: `" + texture_name + "`, is not found into the project nor is stored as embedded file. Make sure to insert the texture as embedded file or into the project, then reimport."); + } + } + + spatial_material->set_texture(mapping_mode, texture); + } + + if (spatial_material.is_valid()) { + spatial_material->set_name(material_name); + } + + /// ALL below is related to properties + for (FBXDocParser::LazyPropertyMap::value_type iter : material->Props()->GetLazyProperties()) { + const std::string name = iter.first; + + if (name.empty()) { + continue; + } + + PropertyDesc desc = PROPERTY_DESC_NOT_FOUND; + if (fbx_properties_desc.count(name) > 0) { + desc = fbx_properties_desc.at(name); + } + + // check if we can ignore this it will be done at the next phase + if (desc == PROPERTY_DESC_NOT_FOUND || desc == PROPERTY_DESC_IGNORE) { + // count the texture mapping references. Skip this one if it's found and we can't look up a property value. + if (fbx_texture_map.count(name) > 0) { + continue; // safe to ignore it's a texture mapping. + } + } + + if (desc == PROPERTY_DESC_IGNORE) { + //WARN_PRINT("[Ignored] The FBX material parameter: `" + String(name.c_str()) + "` is ignored."); + continue; + } else { + print_verbose("FBX Material parameter: " + String(name.c_str())); + + // Check for Diffuse material system / lambert materials / legacy basically + if (name == "Diffuse" && !warning_non_pbr_material) { + ValidationTracker::get_singleton()->add_validation_error(state.path, "Invalid material settings change to Ai Standard Surface shader, mat name: " + material_name.c_escape()); + warning_non_pbr_material = true; + } + } + + // DISABLE when adding support for all weird and wonderful material formats + if (desc == PROPERTY_DESC_NOT_FOUND) { + continue; + } + + ERR_CONTINUE_MSG(desc == PROPERTY_DESC_NOT_FOUND, "The FBX material parameter: `" + String(name.c_str()) + "` was not recognized. Please open an issue so we can add the support to it."); + + const FBXDocParser::PropertyTable *tbl = material->Props(); + FBXDocParser::PropertyPtr prop = tbl->Get(name); + + ERR_CONTINUE_MSG(prop == nullptr, "This file may be corrupted because is not possible to extract the material parameter: " + String(name.c_str())); + + if (spatial_material.is_null()) { + // Done here so if no data no material is created. + spatial_material.instance(); + } + + const FBXDocParser::TypedProperty<real_t> *real_value = dynamic_cast<const FBXDocParser::TypedProperty<real_t> *>(prop); + const FBXDocParser::TypedProperty<Vector3> *vector_value = dynamic_cast<const FBXDocParser::TypedProperty<Vector3> *>(prop); + + if (!real_value && !vector_value) { + //WARN_PRINT("unsupported datatype in property: " + String(name.c_str())); + continue; + } + + if (vector_value && !real_value) { + if (vector_value->Value() == Vector3(0, 0, 0) && !real_value) { + continue; + } + } + + switch (desc) { + case PROPERTY_DESC_ALBEDO_COLOR: { + if (vector_value) { + const Vector3 &color = vector_value->Value(); + // Make sure to not lost any eventual opacity. + if (color != Vector3(0, 0, 0)) { + Color c = Color(); + c[0] = color[0]; + c[1] = color[1]; + c[2] = color[2]; + spatial_material->set_albedo(c); + } + + } else if (real_value) { + print_error("albedo is unsupported format?"); + } + } break; + case PROPERTY_DESC_TRANSPARENT: { + if (real_value) { + const real_t opacity = real_value->Value(); + if (opacity < (1.0 - CMP_EPSILON)) { + Color c = spatial_material->get_albedo(); + c.a = opacity; + spatial_material->set_albedo(c); + + spatial_material->set_transparency(BaseMaterial3D::TRANSPARENCY_ALPHA); + spatial_material->set_depth_draw_mode(BaseMaterial3D::DEPTH_DRAW_OPAQUE_ONLY); + } + } else if (vector_value) { + print_error("unsupported transparent desc type vector!"); + } + } break; + case PROPERTY_DESC_SPECULAR: { + if (real_value) { + print_verbose("specular real value: " + rtos(real_value->Value())); + spatial_material->set_specular(MIN(1.0, real_value->Value())); + } + + if (vector_value) { + print_error("unsupported specular vector value: " + vector_value->Value()); + } + } break; + + case PROPERTY_DESC_SPECULAR_COLOR: { + if (vector_value) { + print_error("unsupported specular color: " + vector_value->Value()); + } + } break; + case PROPERTY_DESC_SHINYNESS: { + if (real_value) { + print_error("unsupported shinyness:" + rtos(real_value->Value())); + } + } break; + case PROPERTY_DESC_METALLIC: { + if (real_value) { + print_verbose("metallic real value: " + rtos(real_value->Value())); + spatial_material->set_metallic(MIN(1.0f, real_value->Value())); + } else { + print_error("unsupported value type for metallic"); + } + } break; + case PROPERTY_DESC_ROUGHNESS: { + if (real_value) { + print_verbose("roughness real value: " + rtos(real_value->Value())); + spatial_material->set_roughness(MIN(1.0f, real_value->Value())); + } else { + print_error("unsupported value type for roughness"); + } + } break; + case PROPERTY_DESC_COAT: { + if (real_value) { + print_verbose("clearcoat real value: " + rtos(real_value->Value())); + spatial_material->set_clearcoat(MIN(1.0f, real_value->Value())); + } else { + print_error("unsupported value type for clearcoat"); + } + } break; + case PROPERTY_DESC_COAT_ROUGHNESS: { + // meaning is that approx equal to zero is disabled not actually zero. ;) + if (real_value && Math::is_equal_approx(real_value->Value(), 0.0f)) { + print_verbose("clearcoat real value: " + rtos(real_value->Value())); + spatial_material->set_clearcoat_gloss(1.0 - real_value->Value()); + } else { + print_error("unsupported value type for clearcoat gloss"); + } + } break; + case PROPERTY_DESC_EMISSIVE: { + if (real_value && Math::is_equal_approx(real_value->Value(), 0.0f)) { + print_verbose("Emissive real value: " + rtos(real_value->Value())); + spatial_material->set_emission_energy(real_value->Value()); + } else if (vector_value && !vector_value->Value().is_equal_approx(Vector3(0, 0, 0))) { + const Vector3 &color = vector_value->Value(); + Color c; + c[0] = color[0]; + c[1] = color[1]; + c[2] = color[2]; + spatial_material->set_emission(c); + } + } break; + case PROPERTY_DESC_EMISSIVE_COLOR: { + if (vector_value && !vector_value->Value().is_equal_approx(Vector3(0, 0, 0))) { + const Vector3 &color = vector_value->Value(); + Color c; + c[0] = color[0]; + c[1] = color[1]; + c[2] = color[2]; + spatial_material->set_emission(c); + } else { + print_error("unsupported value type for emissive color"); + } + } break; + case PROPERTY_DESC_NOT_FOUND: + case PROPERTY_DESC_IGNORE: + break; + default: + break; + } + } + + return spatial_material; +} diff --git a/modules/fbx/data/fbx_material.h b/modules/fbx/data/fbx_material.h new file mode 100644 index 0000000000..e974a256f6 --- /dev/null +++ b/modules/fbx/data/fbx_material.h @@ -0,0 +1,286 @@ +/*************************************************************************/ +/* fbx_material.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_MATERIAL_H +#define FBX_MATERIAL_H + +#include "tools/import_utils.h" + +#include "core/object/reference.h" +#include "core/string/ustring.h" + +struct FBXMaterial : public Reference { + String material_name = String(); + bool warning_non_pbr_material = false; + FBXDocParser::Material *material = nullptr; + + /* Godot materials + *** Texture Maps: + * Albedo - color, texture + * Metallic - specular, metallic, texture + * Roughness - roughness, texture + * Emission - color, texture + * Normal Map - scale, texture + * Ambient Occlusion - texture + * Refraction - scale, texture + *** Has Settings for: + * UV1 - SCALE, OFFSET + * UV2 - SCALE, OFFSET + *** Flags for + * Transparent + * Cull Mode + */ + + enum class MapMode { + AlbedoM = 0, + MetallicM, + SpecularM, + EmissionM, + RoughnessM, + NormalM, + AmbientOcclusionM, + RefractionM, + ReflectionM, + }; + + /* Returns the string representation of the TextureParam enum */ + static String get_texture_param_name(StandardMaterial3D::TextureParam param) { + switch (param) { + case StandardMaterial3D::TEXTURE_ALBEDO: + return "TEXTURE_ALBEDO"; + case StandardMaterial3D::TEXTURE_METALLIC: + return "TEXTURE_METALLIC"; + case StandardMaterial3D::TEXTURE_ROUGHNESS: + return "TEXTURE_ROUGHNESS"; + case StandardMaterial3D::TEXTURE_EMISSION: + return "TEXTURE_EMISSION"; + case StandardMaterial3D::TEXTURE_NORMAL: + return "TEXTURE_NORMAL"; + case StandardMaterial3D::TEXTURE_RIM: + return "TEXTURE_RIM"; + case StandardMaterial3D::TEXTURE_CLEARCOAT: + return "TEXTURE_CLEARCOAT"; + case StandardMaterial3D::TEXTURE_FLOWMAP: + return "TEXTURE_FLOWMAP"; + case StandardMaterial3D::TEXTURE_AMBIENT_OCCLUSION: + return "TEXTURE_AMBIENT_OCCLUSION"; + // case StandardMaterial3D::TEXTURE_DEPTH: // TODO: work out how to make this function again! + // return "TEXTURE_DEPTH"; + case StandardMaterial3D::TEXTURE_SUBSURFACE_SCATTERING: + return "TEXTURE_SUBSURFACE_SCATTERING"; + // case StandardMaterial3D::TEXTURE_TRANSMISSION: // TODO: work out how to make this function again! + // return "TEXTURE_TRANSMISSION"; + case StandardMaterial3D::TEXTURE_REFRACTION: + return "TEXTURE_REFRACTION"; + case StandardMaterial3D::TEXTURE_DETAIL_MASK: + return "TEXTURE_DETAIL_MASK"; + case StandardMaterial3D::TEXTURE_DETAIL_ALBEDO: + return "TEXTURE_DETAIL_ALBEDO"; + case StandardMaterial3D::TEXTURE_DETAIL_NORMAL: + return "TEXTURE_DETAIL_NORMAL"; + case StandardMaterial3D::TEXTURE_MAX: + return "TEXTURE_MAX"; + default: + return "broken horribly"; + } + }; + + // TODO make this static? + const std::map<std::string, bool> fbx_transparency_flags = { + /* Transparent */ + { "TransparentColor", true }, + { "Maya|opacity", true } + }; + + // TODO make this static? + const std::map<std::string, StandardMaterial3D::TextureParam> fbx_texture_map = { + /* Diffuse */ + { "Maya|base", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "DiffuseColor", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "Maya|DiffuseTexture", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "Maya|baseColor", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "Maya|baseColor|file", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "3dsMax|Parameters|base_color_map", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "Maya|TEX_color_map|file", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + { "Maya|TEX_color_map", StandardMaterial3D::TextureParam::TEXTURE_ALBEDO }, + /* Emission */ + { "EmissiveColor", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "EmissiveFactor", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "Maya|emissionColor", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "Maya|emissionColor|file", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "3dsMax|Parameters|emission_map", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "Maya|TEX_emissive_map", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + { "Maya|TEX_emissive_map|file", StandardMaterial3D::TextureParam::TEXTURE_EMISSION }, + /* Metallic */ + { "Maya|metalness", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + { "Maya|metalness|file", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + { "3dsMax|Parameters|metalness_map", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + { "Maya|TEX_metallic_map", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + { "Maya|TEX_metallic_map|file", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + + /* Roughness */ + // Arnold Roughness Map + { "Maya|specularRoughness", StandardMaterial3D::TextureParam::TEXTURE_ROUGHNESS }, + + { "3dsMax|Parameters|roughness_map", StandardMaterial3D::TextureParam::TEXTURE_ROUGHNESS }, + { "Maya|TEX_roughness_map", StandardMaterial3D::TextureParam::TEXTURE_ROUGHNESS }, + { "Maya|TEX_roughness_map|file", StandardMaterial3D::TextureParam::TEXTURE_ROUGHNESS }, + + /* Normal */ + { "NormalMap", StandardMaterial3D::TextureParam::TEXTURE_NORMAL }, + //{ "Bump", Material::TextureParam::TEXTURE_NORMAL }, + //{ "3dsMax|Parameters|bump_map", Material::TextureParam::TEXTURE_NORMAL }, + { "Maya|NormalTexture", StandardMaterial3D::TextureParam::TEXTURE_NORMAL }, + //{ "Maya|normalCamera", Material::TextureParam::TEXTURE_NORMAL }, + //{ "Maya|normalCamera|file", Material::TextureParam::TEXTURE_NORMAL }, + { "Maya|TEX_normal_map", StandardMaterial3D::TextureParam::TEXTURE_NORMAL }, + { "Maya|TEX_normal_map|file", StandardMaterial3D::TextureParam::TEXTURE_NORMAL }, + /* AO */ + { "Maya|TEX_ao_map", StandardMaterial3D::TextureParam::TEXTURE_AMBIENT_OCCLUSION }, + { "Maya|TEX_ao_map|file", StandardMaterial3D::TextureParam::TEXTURE_AMBIENT_OCCLUSION }, + + // TODO: specular workflow conversion + // { "SpecularColor", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + // { "Maya|specularColor", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + // { "Maya|SpecularTexture", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + // { "Maya|SpecularTexture|file", StandardMaterial3D::TextureParam::TEXTURE_METALLIC }, + // { "ShininessExponent", SpatialMaterial::TextureParam::UNSUPPORTED }, + // { "ReflectionFactor", SpatialMaterial::TextureParam::UNSUPPORTED }, + + //{ "TransparentColor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA }, + //{ "TransparencyFactor",SpatialMaterial::TextureParam::TEXTURE_CHANNEL_ALPHA } + + // TODO: diffuse roughness + //{ "Maya|diffuseRoughness", SpatialMaterial::TextureParam::UNSUPPORTED }, + //{ "Maya|diffuseRoughness|file", SpatialMaterial::TextureParam::UNSUPPORTED }, + + }; + + // TODO make this static? + enum PropertyDesc { + PROPERTY_DESC_NOT_FOUND, + PROPERTY_DESC_ALBEDO_COLOR, + PROPERTY_DESC_TRANSPARENT, + PROPERTY_DESC_METALLIC, + PROPERTY_DESC_ROUGHNESS, + PROPERTY_DESC_SPECULAR, + PROPERTY_DESC_SPECULAR_COLOR, + PROPERTY_DESC_SHINYNESS, + PROPERTY_DESC_COAT, + PROPERTY_DESC_COAT_ROUGHNESS, + PROPERTY_DESC_EMISSIVE, + PROPERTY_DESC_EMISSIVE_COLOR, + PROPERTY_DESC_IGNORE + }; + + const std::map<std::string, PropertyDesc> fbx_properties_desc = { + /* Albedo */ + { "DiffuseColor", PROPERTY_DESC_ALBEDO_COLOR }, + { "Maya|baseColor", PROPERTY_DESC_ALBEDO_COLOR }, + + /* Specular */ + { "Maya|specular", PROPERTY_DESC_SPECULAR }, + { "Maya|specularColor", PROPERTY_DESC_SPECULAR_COLOR }, + + /* Specular roughness - arnold roughness map */ + { "Maya|specularRoughness", PROPERTY_DESC_ROUGHNESS }, + + /* Transparent */ + { "Opacity", PROPERTY_DESC_TRANSPARENT }, + { "TransparencyFactor", PROPERTY_DESC_TRANSPARENT }, + { "Maya|opacity", PROPERTY_DESC_TRANSPARENT }, + + /* Metallic */ + { "Shininess", PROPERTY_DESC_METALLIC }, + { "Reflectivity", PROPERTY_DESC_METALLIC }, + { "Maya|metalness", PROPERTY_DESC_METALLIC }, + { "Maya|metallic", PROPERTY_DESC_METALLIC }, + + /* Roughness */ + { "Maya|roughness", PROPERTY_DESC_ROUGHNESS }, + + /* Coat */ + //{ "Maya|coat", PROPERTY_DESC_COAT }, + + /* Coat roughness */ + //{ "Maya|coatRoughness", PROPERTY_DESC_COAT_ROUGHNESS }, + + /* Emissive */ + { "Maya|emission", PROPERTY_DESC_EMISSIVE }, + { "Maya|emissive", PROPERTY_DESC_EMISSIVE }, + + /* Emissive color */ + { "EmissiveColor", PROPERTY_DESC_EMISSIVE_COLOR }, + { "Maya|emissionColor", PROPERTY_DESC_EMISSIVE_COLOR }, + + /* Ignore */ + { "Maya|diffuseRoughness", PROPERTY_DESC_IGNORE }, + { "Maya", PROPERTY_DESC_IGNORE }, + { "Diffuse", PROPERTY_DESC_ALBEDO_COLOR }, + { "Maya|TypeId", PROPERTY_DESC_IGNORE }, + { "Ambient", PROPERTY_DESC_IGNORE }, + { "AmbientColor", PROPERTY_DESC_IGNORE }, + { "ShininessExponent", PROPERTY_DESC_IGNORE }, + { "Specular", PROPERTY_DESC_IGNORE }, + { "SpecularColor", PROPERTY_DESC_IGNORE }, + { "SpecularFactor", PROPERTY_DESC_IGNORE }, + //{ "BumpFactor", PROPERTY_DESC_IGNORE }, + { "Maya|exitToBackground", PROPERTY_DESC_IGNORE }, + { "Maya|indirectDiffuse", PROPERTY_DESC_IGNORE }, + { "Maya|indirectSpecular", PROPERTY_DESC_IGNORE }, + { "Maya|internalReflections", PROPERTY_DESC_IGNORE }, + { "DiffuseFactor", PROPERTY_DESC_IGNORE }, + { "AmbientFactor", PROPERTY_DESC_IGNORE }, + { "ReflectionColor", PROPERTY_DESC_IGNORE }, + { "Emissive", PROPERTY_DESC_IGNORE }, + { "Maya|coatColor", PROPERTY_DESC_IGNORE }, + { "Maya|coatNormal", PROPERTY_DESC_IGNORE }, + { "Maya|coatIOR", PROPERTY_DESC_IGNORE }, + }; + + /* storing the texture properties like color */ + template <class T> + struct TexturePropertyMapping : Reference { + StandardMaterial3D::TextureParam map_mode = StandardMaterial3D::TextureParam::TEXTURE_ALBEDO; + const T property = T(); + }; + + static void add_search_string(String p_filename, String p_current_directory, String search_directory, Vector<String> &texture_search_paths); + + static String find_texture_path_by_filename(const String p_filename, const String p_current_directory); + + String get_material_name() const; + + void set_imported_material(FBXDocParser::Material *p_material); + + Ref<StandardMaterial3D> import_material(ImportState &state); +}; + +#endif // FBX_MATERIAL_H diff --git a/modules/fbx/data/fbx_mesh_data.cpp b/modules/fbx/data/fbx_mesh_data.cpp new file mode 100644 index 0000000000..963a815896 --- /dev/null +++ b/modules/fbx/data/fbx_mesh_data.cpp @@ -0,0 +1,1447 @@ +/*************************************************************************/ +/* fbx_mesh_data.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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. */ +/*************************************************************************/ + +#include "fbx_mesh_data.h" + +#include "core/templates/local_vector.h" +#include "scene/resources/mesh.h" +#include "scene/resources/surface_tool.h" + +#include "thirdparty/misc/triangulator.h" + +template <class T> +T collect_first(const Vector<VertexData<T>> *p_data, T p_fall_back) { + if (p_data->is_empty()) { + return p_fall_back; + } + + return (*p_data)[0].data; +} + +template <class T> +HashMap<int, T> collect_all(const Vector<VertexData<T>> *p_data, HashMap<int, T> p_fall_back) { + if (p_data->is_empty()) { + return p_fall_back; + } + + HashMap<int, T> collection; + for (int i = 0; i < p_data->size(); i += 1) { + const VertexData<T> &vd = (*p_data)[i]; + collection[vd.polygon_index] = vd.data; + } + return collection; +} + +template <class T> +T collect_average(const Vector<VertexData<T>> *p_data, T p_fall_back) { + if (p_data->is_empty()) { + return p_fall_back; + } + + T combined = (*p_data)[0].data; // Make sure the data is always correctly initialized. + print_verbose("size of data: " + itos(p_data->size())); + for (int i = 1; i < p_data->size(); i += 1) { + combined += (*p_data)[i].data; + } + combined = combined / real_t(p_data->size()); + + return combined.normalized(); +} + +HashMap<int, Vector3> collect_normal(const Vector<VertexData<Vector3>> *p_data, HashMap<int, Vector3> p_fall_back) { + if (p_data->is_empty()) { + return p_fall_back; + } + + HashMap<int, Vector3> collection; + for (int i = 0; i < p_data->size(); i += 1) { + const VertexData<Vector3> &vd = (*p_data)[i]; + collection[vd.polygon_index] = vd.data; + } + return collection; +} + +HashMap<int, Vector2> collect_uv(const Vector<VertexData<Vector2>> *p_data, HashMap<int, Vector2> p_fall_back) { + if (p_data->is_empty()) { + return p_fall_back; + } + + HashMap<int, Vector2> collection; + for (int i = 0; i < p_data->size(); i += 1) { + const VertexData<Vector2> &vd = (*p_data)[i]; + collection[vd.polygon_index] = vd.data; + } + return collection; +} + +typedef int Vertex; +typedef int SurfaceId; +typedef int PolygonId; +typedef int DataIndex; + +struct SurfaceData { + Ref<SurfaceTool> surface_tool; + OrderedHashMap<Vertex, int> lookup_table; // proposed fix is to replace lookup_table[vertex_id] to give the position of the vertices_map[int] index. + LocalVector<Vertex> vertices_map; // this must be ordered the same as insertion <-- slow to do find() operation. + Ref<Material> material; + HashMap<PolygonId, Vector<DataIndex>> surface_polygon_vertex; + Array morphs; +}; + +EditorSceneImporterMeshNode3D *FBXMeshData::create_fbx_mesh(const ImportState &state, const FBXDocParser::MeshGeometry *p_mesh_geometry, const FBXDocParser::Model *model, bool use_compression) { + mesh_geometry = p_mesh_geometry; + // todo: make this just use a uint64_t FBX ID this is a copy of our original materials unfortunately. + const std::vector<const FBXDocParser::Material *> &material_lookup = model->GetMaterials(); + + // TODO: perf hotspot on large files + // this can be a very large copy + std::vector<int> polygon_indices = mesh_geometry->get_polygon_indices(); + std::vector<Vector3> vertices = mesh_geometry->get_vertices(); + + // Phase 1. Parse all FBX data. + HashMap<int, Vector3> normals; + HashMap<int, HashMap<int, Vector3>> normals_raw = extract_per_vertex_data( + vertices.size(), + mesh_geometry->get_edge_map(), + polygon_indices, + mesh_geometry->get_normals(), + &collect_all, + HashMap<int, Vector3>()); + + HashMap<int, Vector2> uvs_0; + HashMap<int, HashMap<int, Vector2>> uvs_0_raw = extract_per_vertex_data( + vertices.size(), + mesh_geometry->get_edge_map(), + polygon_indices, + mesh_geometry->get_uv_0(), + &collect_all, + HashMap<int, Vector2>()); + + HashMap<int, Vector2> uvs_1; + HashMap<int, HashMap<int, Vector2>> uvs_1_raw = extract_per_vertex_data( + vertices.size(), + mesh_geometry->get_edge_map(), + polygon_indices, + mesh_geometry->get_uv_1(), + &collect_all, + HashMap<int, Vector2>()); + + HashMap<int, Color> colors; + HashMap<int, HashMap<int, Color>> colors_raw = extract_per_vertex_data( + vertices.size(), + mesh_geometry->get_edge_map(), + polygon_indices, + mesh_geometry->get_colors(), + &collect_all, + HashMap<int, Color>()); + + // TODO what about tangents? + // TODO what about bi-nomials? + // TODO there is other? + + HashMap<int, SurfaceId> polygon_surfaces = extract_per_polygon( + vertices.size(), + polygon_indices, + mesh_geometry->get_material_allocation_id(), + -1); + + HashMap<String, MorphVertexData> morphs; + extract_morphs(mesh_geometry, morphs); + + // TODO please add skinning. + //mesh_id = mesh_geometry->ID(); + + sanitize_vertex_weights(state); + + // Re organize polygon vertices to to correctly take into account strange + // UVs. + reorganize_vertices( + polygon_indices, + vertices, + normals, + uvs_0, + uvs_1, + colors, + morphs, + normals_raw, + colors_raw, + uvs_0_raw, + uvs_1_raw); + + const int color_count = colors.size(); + print_verbose("Vertex color count: " + itos(color_count)); + + // Make sure that from this moment on the mesh_geometry is no used anymore. + // This is a safety step, because the mesh_geometry data are no more valid + // at this point. + + const int vertex_count = vertices.size(); + + print_verbose("Vertex count: " + itos(vertex_count)); + + // The map key is the material allocator id that is also used as surface id. + HashMap<SurfaceId, SurfaceData> surfaces; + + // Phase 2. For each material create a surface tool (So a different mesh). + { + if (polygon_surfaces.is_empty()) { + // No material, just use the default one with index -1. + // Set -1 to all polygons. + const int polygon_count = count_polygons(polygon_indices); + for (int p = 0; p < polygon_count; p += 1) { + polygon_surfaces[p] = -1; + } + } + + // Create the surface now. + for (const int *polygon_id = polygon_surfaces.next(nullptr); polygon_id != nullptr; polygon_id = polygon_surfaces.next(polygon_id)) { + const int surface_id = polygon_surfaces[*polygon_id]; + if (surfaces.has(surface_id) == false) { + SurfaceData sd; + sd.surface_tool.instance(); + sd.surface_tool->begin(Mesh::PRIMITIVE_TRIANGLES); + + if (surface_id < 0) { + // nothing to do + } else if (surface_id < (int)material_lookup.size()) { + const FBXDocParser::Material *mat_mapping = material_lookup.at(surface_id); + const uint64_t mapping_id = mat_mapping->ID(); + if (state.cached_materials.has(mapping_id)) { + sd.material = state.cached_materials[mapping_id]; + } + } else { + WARN_PRINT("out of bounds surface detected, FBX file has corrupt material data"); + } + + surfaces.set(surface_id, sd); + } + } + } + + // Phase 3. Map the vertices relative to each surface, in this way we can + // just insert the vertices that we need per each surface. + { + PolygonId polygon_index = -1; + SurfaceId surface_id = -1; + SurfaceData *surface_data = nullptr; + + for (size_t polygon_vertex = 0; polygon_vertex < polygon_indices.size(); polygon_vertex += 1) { + if (is_start_of_polygon(polygon_indices, polygon_vertex)) { + polygon_index += 1; + ERR_FAIL_COND_V_MSG(polygon_surfaces.has(polygon_index) == false, nullptr, "The FBX file is corrupted, This surface_index is not expected."); + surface_id = polygon_surfaces[polygon_index]; + surface_data = surfaces.getptr(surface_id); + CRASH_COND(surface_data == nullptr); // Can't be null. + } + + const int vertex = get_vertex_from_polygon_vertex(polygon_indices, polygon_vertex); + + // The vertex position in the surface + // Uses a lookup table for speed with large scenes + bool has_polygon_vertex_index = surface_data->lookup_table.has(vertex); + int surface_polygon_vertex_index = -1; + + if (has_polygon_vertex_index) { + surface_polygon_vertex_index = surface_data->lookup_table[vertex]; + } else { + surface_polygon_vertex_index = surface_data->vertices_map.size(); + surface_data->lookup_table[vertex] = surface_polygon_vertex_index; + surface_data->vertices_map.push_back(vertex); + } + + surface_data->surface_polygon_vertex[polygon_index].push_back(surface_polygon_vertex_index); + } + } + + //print_verbose("[debug UV 1] UV1: " + itos(uvs_0.size())); + //print_verbose("[debug UV 2] UV2: " + itos(uvs_1.size())); + + // Phase 4. Per each surface just insert the vertices and add the indices. + for (const SurfaceId *surface_id = surfaces.next(nullptr); surface_id != nullptr; surface_id = surfaces.next(surface_id)) { + SurfaceData *surface = surfaces.getptr(*surface_id); + + // Just add the vertices data. + for (unsigned int i = 0; i < surface->vertices_map.size(); i += 1) { + const Vertex vertex = surface->vertices_map[i]; + + // This must be done before add_vertex because the surface tool is + // expecting this before the st->add_vertex() call + add_vertex(state, + surface->surface_tool, + state.scale, + vertex, + vertices, + normals, + uvs_0, + uvs_1, + colors); + } + + // Triangulate the various polygons and add the indices. + for (const PolygonId *polygon_id = surface->surface_polygon_vertex.next(nullptr); polygon_id != nullptr; polygon_id = surface->surface_polygon_vertex.next(polygon_id)) { + const Vector<DataIndex> *indices = surface->surface_polygon_vertex.getptr(*polygon_id); + + triangulate_polygon( + surface->surface_tool, + *indices, + surface->vertices_map, + vertices); + } + } + + // Phase 5. Compose the morphs if any. + for (const SurfaceId *surface_id = surfaces.next(nullptr); surface_id != nullptr; surface_id = surfaces.next(surface_id)) { + SurfaceData *surface = surfaces.getptr(*surface_id); + + for (const String *morph_name = morphs.next(nullptr); morph_name != nullptr; morph_name = morphs.next(morph_name)) { + MorphVertexData *morph_data = morphs.getptr(*morph_name); + + // As said by the docs, this is not supposed to be different than + // vertex_count. + CRASH_COND(morph_data->vertices.size() != vertex_count); + CRASH_COND(morph_data->normals.size() != vertex_count); + + Vector3 *vertices_ptr = morph_data->vertices.ptrw(); + Vector3 *normals_ptr = morph_data->normals.ptrw(); + + Ref<SurfaceTool> morph_st; + morph_st.instance(); + morph_st->begin(Mesh::PRIMITIVE_TRIANGLES); + + for (unsigned int vi = 0; vi < surface->vertices_map.size(); vi += 1) { + const Vertex vertex = surface->vertices_map[vi]; + add_vertex( + state, + morph_st, + state.scale, + vertex, + vertices, + normals, + uvs_0, + uvs_1, + colors, + vertices_ptr[vertex], + normals_ptr[vertex]); + } + + if (state.is_blender_fbx) { + morph_st->generate_normals(); + } + morph_st->generate_tangents(); + surface->morphs.push_back(morph_st->commit_to_arrays()); + } + } + + // Phase 6. Compose the mesh and return it. + Ref<EditorSceneImporterMesh> mesh; + mesh.instance(); + + // Add blend shape info. + for (const String *morph_name = morphs.next(nullptr); morph_name != nullptr; morph_name = morphs.next(morph_name)) { + mesh->add_blend_shape(*morph_name); + } + + // TODO always normalized, Why? + mesh->set_blend_shape_mode(Mesh::BLEND_SHAPE_MODE_NORMALIZED); + + // Add surfaces. + int in_mesh_surface_id = 0; + for (const SurfaceId *surface_id = surfaces.next(nullptr); surface_id != nullptr; surface_id = surfaces.next(surface_id)) { + SurfaceData *surface = surfaces.getptr(*surface_id); + + if (state.is_blender_fbx) { + surface->surface_tool->generate_normals(); + } + // you can't generate them without a valid uv map. + if (uvs_0_raw.size() > 0) { + surface->surface_tool->generate_tangents(); + } + + Array mesh_array = surface->surface_tool->commit_to_arrays(); + Array blend_shapes = surface->morphs; + + if (surface->material.is_valid()) { + mesh->add_surface(Mesh::PRIMITIVE_TRIANGLES, mesh_array, blend_shapes, Dictionary(), surface->material, surface->material->get_name()); + } else { + mesh->add_surface(Mesh::PRIMITIVE_TRIANGLES, mesh_array, blend_shapes); + } + + in_mesh_surface_id += 1; + } + + EditorSceneImporterMeshNode3D *godot_mesh = memnew(EditorSceneImporterMeshNode3D); + godot_mesh->set_mesh(mesh); + return godot_mesh; +} + +void FBXMeshData::sanitize_vertex_weights(const ImportState &state) { + const int max_vertex_influence_count = RS::ARRAY_WEIGHTS_SIZE; + Map<int, int> skeleton_to_skin_bind_id; + // TODO: error's need added + const FBXDocParser::Skin *fbx_skin = mesh_geometry->DeformerSkin(); + + if (fbx_skin == nullptr || fbx_skin->Clusters().size() == 0) { + return; // do nothing + } + + // + // Precalculate the skin cluster mapping + // + + int bind_id = 0; + for (const FBXDocParser::Cluster *cluster : fbx_skin->Clusters()) { + Ref<FBXBone> bone = state.fbx_bone_map[cluster->TargetNode()->ID()]; + skeleton_to_skin_bind_id.insert(bone->godot_bone_id, bind_id); + bind_id++; + } + + for (const Vertex *v = vertex_weights.next(nullptr); v != nullptr; v = vertex_weights.next(v)) { + VertexWeightMapping *vm = vertex_weights.getptr(*v); + ERR_CONTINUE(vm->bones.size() != vm->weights.size()); // No message, already checked. + ERR_CONTINUE(vm->bones_ref.size() != vm->weights.size()); // No message, already checked. + + const int initial_size = vm->weights.size(); + { + // Init bone id + int *bones_ptr = vm->bones.ptrw(); + Ref<FBXBone> *bones_ref_ptr = vm->bones_ref.ptrw(); + + for (int i = 0; i < vm->weights.size(); i += 1) { + // At this point this is not possible because the skeleton is already initialized. + CRASH_COND(bones_ref_ptr[i]->godot_bone_id == -2); + bones_ptr[i] = skeleton_to_skin_bind_id[bones_ref_ptr[i]->godot_bone_id]; + } + + // From this point on the data is no more valid. + vm->bones_ref.clear(); + } + + { + // Sort + real_t *weights_ptr = vm->weights.ptrw(); + int *bones_ptr = vm->bones.ptrw(); + for (int i = 0; i < vm->weights.size(); i += 1) { + for (int x = i + 1; x < vm->weights.size(); x += 1) { + if (weights_ptr[i] < weights_ptr[x]) { + SWAP(weights_ptr[i], weights_ptr[x]); + SWAP(bones_ptr[i], bones_ptr[x]); + } + } + } + } + + { + // Resize + vm->weights.resize(max_vertex_influence_count); + vm->bones.resize(max_vertex_influence_count); + real_t *weights_ptr = vm->weights.ptrw(); + int *bones_ptr = vm->bones.ptrw(); + for (int i = initial_size; i < max_vertex_influence_count; i += 1) { + weights_ptr[i] = 0.0; + bones_ptr[i] = 0; + } + + // Normalize + real_t sum = 0.0; + for (int i = 0; i < max_vertex_influence_count; i += 1) { + sum += weights_ptr[i]; + } + if (sum > 0.0) { + for (int i = 0; i < vm->weights.size(); i += 1) { + weights_ptr[i] = weights_ptr[i] / sum; + } + } + } + } +} + +void FBXMeshData::reorganize_vertices( + // TODO: perf hotspot on insane files + std::vector<int> &r_polygon_indices, + std::vector<Vector3> &r_vertices, + HashMap<int, Vector3> &r_normals, + HashMap<int, Vector2> &r_uv_1, + HashMap<int, Vector2> &r_uv_2, + HashMap<int, Color> &r_color, + HashMap<String, MorphVertexData> &r_morphs, + HashMap<int, HashMap<int, Vector3>> &r_normals_raw, + HashMap<int, HashMap<int, Color>> &r_colors_raw, + HashMap<int, HashMap<int, Vector2>> &r_uv_1_raw, + HashMap<int, HashMap<int, Vector2>> &r_uv_2_raw) { + // Key: OldVertex; Value: [New vertices]; + HashMap<int, Vector<int>> duplicated_vertices; + + PolygonId polygon_index = -1; + for (int pv = 0; pv < (int)r_polygon_indices.size(); pv += 1) { + if (is_start_of_polygon(r_polygon_indices, pv)) { + polygon_index += 1; + } + const Vertex index = get_vertex_from_polygon_vertex(r_polygon_indices, pv); + + bool need_duplication = false; + Vector2 this_vert_poly_uv1 = Vector2(); + Vector2 this_vert_poly_uv2 = Vector2(); + Vector3 this_vert_poly_normal = Vector3(); + Color this_vert_poly_color = Color(); + + // Take the normal and see if we need to duplicate this polygon. + if (r_normals_raw.has(index)) { + const HashMap<PolygonId, Vector3> *nrml_arr = r_normals_raw.getptr(index); + + if (nrml_arr->has(polygon_index)) { + this_vert_poly_normal = nrml_arr->get(polygon_index); + } else if (nrml_arr->has(-1)) { + this_vert_poly_normal = nrml_arr->get(-1); + } else { + print_error("invalid normal detected: " + itos(index) + " polygon index: " + itos(polygon_index)); + for (const PolygonId *pid = nrml_arr->next(nullptr); pid != nullptr; pid = nrml_arr->next(pid)) { + print_verbose("debug contents key: " + itos(*pid)); + + if (nrml_arr->has(*pid)) { + print_verbose("contents valid: " + nrml_arr->get(*pid)); + } + } + } + + // Now, check if we need to duplicate it. + for (const PolygonId *pid = nrml_arr->next(nullptr); pid != nullptr; pid = nrml_arr->next(pid)) { + if (*pid == polygon_index) { + continue; + } + + const Vector3 vert_poly_normal = *nrml_arr->getptr(*pid); + if ((this_vert_poly_normal - vert_poly_normal).length_squared() > CMP_EPSILON) { + // Yes this polygon need duplication. + need_duplication = true; + break; + } + } + } + + // TODO: make me vertex color + // Take the normal and see if we need to duplicate this polygon. + if (r_colors_raw.has(index)) { + const HashMap<PolygonId, Color> *color_arr = r_colors_raw.getptr(index); + + if (color_arr->has(polygon_index)) { + this_vert_poly_color = color_arr->get(polygon_index); + } else if (color_arr->has(-1)) { + this_vert_poly_color = color_arr->get(-1); + } else { + print_error("invalid color detected: " + itos(index) + " polygon index: " + itos(polygon_index)); + for (const PolygonId *pid = color_arr->next(nullptr); pid != nullptr; pid = color_arr->next(pid)) { + print_verbose("debug contents key: " + itos(*pid)); + + if (color_arr->has(*pid)) { + print_verbose("contents valid: " + color_arr->get(*pid)); + } + } + } + + // Now, check if we need to duplicate it. + for (const PolygonId *pid = color_arr->next(nullptr); pid != nullptr; pid = color_arr->next(pid)) { + if (*pid == polygon_index) { + continue; + } + + const Color vert_poly_color = *color_arr->getptr(*pid); + if (!this_vert_poly_color.is_equal_approx(vert_poly_color)) { + // Yes this polygon need duplication. + need_duplication = true; + break; + } + } + } + + // Take the UV1 and UV2 and see if we need to duplicate this polygon. + { + HashMap<int, HashMap<int, Vector2>> *uv_raw = &r_uv_1_raw; + Vector2 *this_vert_poly_uv = &this_vert_poly_uv1; + for (int kk = 0; kk < 2; kk++) { + if (uv_raw->has(index)) { + const HashMap<PolygonId, Vector2> *uvs = uv_raw->getptr(index); + + if (uvs->has(polygon_index)) { + // This Polygon has its own uv. + (*this_vert_poly_uv) = *uvs->getptr(polygon_index); + + // Check if we need to duplicate it. + for (const PolygonId *pid = uvs->next(nullptr); pid != nullptr; pid = uvs->next(pid)) { + if (*pid == polygon_index) { + continue; + } + const Vector2 vert_poly_uv = *uvs->getptr(*pid); + if (((*this_vert_poly_uv) - vert_poly_uv).length_squared() > CMP_EPSILON) { + // Yes this polygon need duplication. + need_duplication = true; + break; + } + } + } else if (uvs->has(-1)) { + // It has the default UV. + (*this_vert_poly_uv) = *uvs->getptr(-1); + } else if (uvs->size() > 0) { + // No uv, this is strange, just take the first and duplicate. + (*this_vert_poly_uv) = *uvs->getptr(*uvs->next(nullptr)); + WARN_PRINT("No UVs for this polygon, while there is no default and some other polygons have it. This FBX file may be corrupted."); + } + } + uv_raw = &r_uv_2_raw; + this_vert_poly_uv = &this_vert_poly_uv2; + } + } + + // If we want to duplicate it, Let's see if we already duplicated this + // vertex. + if (need_duplication) { + if (duplicated_vertices.has(index)) { + Vertex similar_vertex = -1; + // Let's see if one of the new vertices has the same data of this. + const Vector<int> *new_vertices = duplicated_vertices.getptr(index); + for (int j = 0; j < new_vertices->size(); j += 1) { + const Vertex new_vertex = (*new_vertices)[j]; + bool same_uv1 = false; + bool same_uv2 = false; + bool same_normal = false; + bool same_color = false; + + if (r_uv_1.has(new_vertex)) { + if ((this_vert_poly_uv1 - (*r_uv_1.getptr(new_vertex))).length_squared() <= CMP_EPSILON) { + same_uv1 = true; + } + } + + if (r_uv_2.has(new_vertex)) { + if ((this_vert_poly_uv2 - (*r_uv_2.getptr(new_vertex))).length_squared() <= CMP_EPSILON) { + same_uv2 = true; + } + } + + if (r_color.has(new_vertex)) { + if (this_vert_poly_color.is_equal_approx((*r_color.getptr(new_vertex)))) { + same_color = true; + } + } + + if (r_normals.has(new_vertex)) { + if ((this_vert_poly_normal - (*r_normals.getptr(new_vertex))).length_squared() <= CMP_EPSILON) { + same_uv2 = true; + } + } + + if (same_uv1 && same_uv2 && same_normal && same_color) { + similar_vertex = new_vertex; + break; + } + } + + if (similar_vertex != -1) { + // Update polygon. + if (is_end_of_polygon(r_polygon_indices, pv)) { + r_polygon_indices[pv] = ~similar_vertex; + } else { + r_polygon_indices[pv] = similar_vertex; + } + need_duplication = false; + } + } + } + + if (need_duplication) { + const Vertex old_index = index; + const Vertex new_index = r_vertices.size(); + + // Polygon index. + if (is_end_of_polygon(r_polygon_indices, pv)) { + r_polygon_indices[pv] = ~new_index; + } else { + r_polygon_indices[pv] = new_index; + } + + // Vertex position. + r_vertices.push_back(r_vertices[old_index]); + + // Normals + if (r_normals_raw.has(old_index)) { + r_normals.set(new_index, this_vert_poly_normal); + r_normals_raw.getptr(old_index)->erase(polygon_index); + r_normals_raw[new_index][polygon_index] = this_vert_poly_normal; + } + + // Vertex Color + if (r_colors_raw.has(old_index)) { + r_color.set(new_index, this_vert_poly_color); + r_colors_raw.getptr(old_index)->erase(polygon_index); + r_colors_raw[new_index][polygon_index] = this_vert_poly_color; + } + + // UV 0 + if (r_uv_1_raw.has(old_index)) { + r_uv_1.set(new_index, this_vert_poly_uv1); + r_uv_1_raw.getptr(old_index)->erase(polygon_index); + r_uv_1_raw[new_index][polygon_index] = this_vert_poly_uv1; + } + + // UV 1 + if (r_uv_2_raw.has(old_index)) { + r_uv_2.set(new_index, this_vert_poly_uv2); + r_uv_2_raw.getptr(old_index)->erase(polygon_index); + r_uv_2_raw[new_index][polygon_index] = this_vert_poly_uv2; + } + + // Morphs + for (const String *mname = r_morphs.next(nullptr); mname != nullptr; mname = r_morphs.next(mname)) { + MorphVertexData *d = r_morphs.getptr(*mname); + // This can't never happen. + CRASH_COND(d == nullptr); + if (d->vertices.size() > old_index) { + d->vertices.push_back(d->vertices[old_index]); + } + if (d->normals.size() > old_index) { + d->normals.push_back(d->normals[old_index]); + } + } + + if (vertex_weights.has(old_index)) { + vertex_weights.set(new_index, vertex_weights[old_index]); + } + + duplicated_vertices[old_index].push_back(new_index); + } else { + if (r_normals_raw.has(index) && + r_normals.has(index) == false) { + r_normals.set(index, this_vert_poly_normal); + } + + if (r_colors_raw.has(index) && r_color.has(index) == false) { + r_color.set(index, this_vert_poly_color); + } + + if (r_uv_1_raw.has(index) && + r_uv_1.has(index) == false) { + r_uv_1.set(index, this_vert_poly_uv1); + } + + if (r_uv_2_raw.has(index) && + r_uv_2.has(index) == false) { + r_uv_2.set(index, this_vert_poly_uv2); + } + } + } +} + +void FBXMeshData::add_vertex( + const ImportState &state, + Ref<SurfaceTool> p_surface_tool, + real_t p_scale, + Vertex p_vertex, + const std::vector<Vector3> &p_vertices_position, + const HashMap<int, Vector3> &p_normals, + const HashMap<int, Vector2> &p_uvs_0, + const HashMap<int, Vector2> &p_uvs_1, + const HashMap<int, Color> &p_colors, + const Vector3 &p_morph_value, + const Vector3 &p_morph_normal) { + ERR_FAIL_INDEX_MSG(p_vertex, (Vertex)p_vertices_position.size(), "FBX file is corrupted, the position of the vertex can't be retrieved."); + + if (p_normals.has(p_vertex) && !state.is_blender_fbx) { + p_surface_tool->set_normal(p_normals[p_vertex] + p_morph_normal); + } + + if (p_uvs_0.has(p_vertex)) { + //print_verbose("uv1: [" + itos(p_vertex) + "] " + p_uvs_0[p_vertex]); + // Inverts Y UV. + p_surface_tool->set_uv(Vector2(p_uvs_0[p_vertex].x, 1 - p_uvs_0[p_vertex].y)); + } + + if (p_uvs_1.has(p_vertex)) { + //print_verbose("uv2: [" + itos(p_vertex) + "] " + p_uvs_1[p_vertex]); + // Inverts Y UV. + p_surface_tool->set_uv2(Vector2(p_uvs_1[p_vertex].x, 1 - p_uvs_1[p_vertex].y)); + } + + if (p_colors.has(p_vertex)) { + p_surface_tool->set_color(p_colors[p_vertex]); + } + + // TODO what about binormals? + // TODO there is other? + + if (vertex_weights.has(p_vertex)) { + // Let's extract the weight info. + const VertexWeightMapping *vm = vertex_weights.getptr(p_vertex); + const Vector<int> &bones = vm->bones; + + // the bug is that the bone idx is wrong because it is not ref'ing the skin. + + if (bones.size() > RS::ARRAY_WEIGHTS_SIZE) { + print_error("[weight overflow detected]"); + } + + p_surface_tool->set_weights(vm->weights); + // 0 1 2 3 4 5 6 7 < local skeleton / skin for mesh + // 0 1 2 3 4 5 6 7 8 9 10 < actual skeleton with all joints + p_surface_tool->set_bones(bones); + } + + // The surface tool want the vertex position as last thing. + p_surface_tool->add_vertex((p_vertices_position[p_vertex] + p_morph_value) * p_scale); +} + +void FBXMeshData::triangulate_polygon(Ref<SurfaceTool> st, Vector<int> p_polygon_vertex, const Vector<Vertex> p_surface_vertex_map, const std::vector<Vector3> &p_vertices) const { + const int polygon_vertex_count = p_polygon_vertex.size(); + if (polygon_vertex_count == 1) { + // point to triangle + st->add_index(p_polygon_vertex[0]); + st->add_index(p_polygon_vertex[0]); + st->add_index(p_polygon_vertex[0]); + return; + } else if (polygon_vertex_count == 2) { + // line to triangle + st->add_index(p_polygon_vertex[1]); + st->add_index(p_polygon_vertex[1]); + st->add_index(p_polygon_vertex[0]); + return; + } else if (polygon_vertex_count == 3) { + // triangle to triangle + st->add_index(p_polygon_vertex[0]); + st->add_index(p_polygon_vertex[2]); + st->add_index(p_polygon_vertex[1]); + return; + } else if (polygon_vertex_count == 4) { + // quad to triangle - this code is awesome for import times + // it prevents triangles being generated slowly + st->add_index(p_polygon_vertex[0]); + st->add_index(p_polygon_vertex[2]); + st->add_index(p_polygon_vertex[1]); + st->add_index(p_polygon_vertex[2]); + st->add_index(p_polygon_vertex[0]); + st->add_index(p_polygon_vertex[3]); + return; + } else { + // non triangulated - we must run the triangulation algorithm + bool is_simple_convex = false; + // this code is 'slow' but required it triangulates all the unsupported geometry. + // Doesn't allow for bigger polygons because those are unlikely be convex + if (polygon_vertex_count <= 6) { + // Start from true, check if it's false. + is_simple_convex = true; + Vector3 first_vec; + for (int i = 0; i < polygon_vertex_count; i += 1) { + const Vector3 p1 = p_vertices[p_surface_vertex_map[p_polygon_vertex[i]]]; + const Vector3 p2 = p_vertices[p_surface_vertex_map[p_polygon_vertex[(i + 1) % polygon_vertex_count]]]; + const Vector3 p3 = p_vertices[p_surface_vertex_map[p_polygon_vertex[(i + 2) % polygon_vertex_count]]]; + + const Vector3 edge1 = p1 - p2; + const Vector3 edge2 = p3 - p2; + + const Vector3 res = edge1.normalized().cross(edge2.normalized()).normalized(); + if (i == 0) { + first_vec = res; + } else { + if (first_vec.dot(res) < 0.0) { + // Ok we found an angle that is not the same dir of the + // others. + is_simple_convex = false; + break; + } + } + } + } + + if (is_simple_convex) { + // This is a convex polygon, so just triangulate it. + for (int i = 0; i < (polygon_vertex_count - 2); i += 1) { + st->add_index(p_polygon_vertex[2 + i]); + st->add_index(p_polygon_vertex[1 + i]); + st->add_index(p_polygon_vertex[0]); + } + return; + } + } + + { + // This is a concave polygon. + + std::vector<Vector3> poly_vertices(polygon_vertex_count); + for (int i = 0; i < polygon_vertex_count; i += 1) { + poly_vertices[i] = p_vertices[p_surface_vertex_map[p_polygon_vertex[i]]]; + } + + const Vector3 poly_norm = get_poly_normal(poly_vertices); + if (poly_norm.length_squared() <= CMP_EPSILON) { + ERR_FAIL_COND_MSG(poly_norm.length_squared() <= CMP_EPSILON, "The normal of this poly was not computed. Is this FBX file corrupted."); + } + + // Select the plan coordinate. + int axis_1_coord = 0; + int axis_2_coord = 1; + { + real_t inv = poly_norm.z; + + const real_t axis_x = ABS(poly_norm.x); + const real_t axis_y = ABS(poly_norm.y); + const real_t axis_z = ABS(poly_norm.z); + + if (axis_x > axis_y) { + if (axis_x > axis_z) { + // For the most part the normal point toward X. + axis_1_coord = 1; + axis_2_coord = 2; + inv = poly_norm.x; + } + } else if (axis_y > axis_z) { + // For the most part the normal point toward Y. + axis_1_coord = 2; + axis_2_coord = 0; + inv = poly_norm.y; + } + + // Swap projection axes to take the negated projection vector into account + if (inv < 0.0f) { + SWAP(axis_1_coord, axis_2_coord); + } + } + + TriangulatorPoly triangulator_poly; + triangulator_poly.Init(polygon_vertex_count); + std::vector<Vector2> projected_vertices(polygon_vertex_count); + for (int i = 0; i < polygon_vertex_count; i += 1) { + const Vector2 pv(poly_vertices[i][axis_1_coord], poly_vertices[i][axis_2_coord]); + projected_vertices[i] = pv; + triangulator_poly.GetPoint(i) = pv; + } + triangulator_poly.SetOrientation(TRIANGULATOR_CCW); + + List<TriangulatorPoly> out_poly; + + TriangulatorPartition triangulator_partition; + if (triangulator_partition.Triangulate_OPT(&triangulator_poly, &out_poly) == 0) { // Good result. + if (triangulator_partition.Triangulate_EC(&triangulator_poly, &out_poly) == 0) { // Medium result. + if (triangulator_partition.Triangulate_MONO(&triangulator_poly, &out_poly) == 0) { // Really poor result. + ERR_FAIL_MSG("The triangulation of this polygon failed, please try to triangulate your mesh or check if it has broken polygons."); + } + } + } + + std::vector<Vector2> tris(out_poly.size()); + for (List<TriangulatorPoly>::Element *I = out_poly.front(); I; I = I->next()) { + TriangulatorPoly &tp = I->get(); + + ERR_FAIL_COND_MSG(tp.GetNumPoints() != 3, "The triangulator retuned more points, how this is possible?"); + // Find Index + for (int i = 2; i >= 0; i -= 1) { + const Vector2 vertex = tp.GetPoint(i); + bool done = false; + // Find Index + for (int y = 0; y < polygon_vertex_count; y += 1) { + if ((projected_vertices[y] - vertex).length_squared() <= CMP_EPSILON) { + // This seems the right vertex + st->add_index(p_polygon_vertex[y]); + done = true; + break; + } + } + ERR_FAIL_COND(done == false); + } + } + } +} + +void FBXMeshData::gen_weight_info(Ref<SurfaceTool> st, Vertex vertex_id) const { + if (vertex_weights.is_empty()) { + return; + } + + if (vertex_weights.has(vertex_id)) { + // Let's extract the weight info. + const VertexWeightMapping *vm = vertex_weights.getptr(vertex_id); + st->set_weights(vm->weights); + st->set_bones(vm->bones); + } +} + +int FBXMeshData::get_vertex_from_polygon_vertex(const std::vector<int> &p_polygon_indices, int p_index) const { + if (p_index < 0 || p_index >= (int)p_polygon_indices.size()) { + return -1; + } + + const int vertex = p_polygon_indices[p_index]; + if (vertex >= 0) { + return vertex; + } else { + // Negative numbers are the end of the face, reversing the bits is + // possible to obtain the positive correct vertex number. + return ~vertex; + } +} + +bool FBXMeshData::is_end_of_polygon(const std::vector<int> &p_polygon_indices, int p_index) const { + if (p_index < 0 || p_index >= (int)p_polygon_indices.size()) { + return false; + } + + const int vertex = p_polygon_indices[p_index]; + + // If the index is negative this is the end of the Polygon. + return vertex < 0; +} + +bool FBXMeshData::is_start_of_polygon(const std::vector<int> &p_polygon_indices, int p_index) const { + if (p_index < 0 || p_index >= (int)p_polygon_indices.size()) { + return false; + } + + if (p_index == 0) { + return true; + } + + // If the previous indices is negative this is the begin of a new Polygon. + return p_polygon_indices[p_index - 1] < 0; +} + +int FBXMeshData::count_polygons(const std::vector<int> &p_polygon_indices) const { + // The negative numbers define the end of the polygon. Counting the amount of + // negatives the numbers of polygons are obtained. + int count = 0; + for (size_t i = 0; i < p_polygon_indices.size(); i += 1) { + if (p_polygon_indices[i] < 0) { + count += 1; + } + } + return count; +} + +template <class R, class T> +HashMap<int, R> FBXMeshData::extract_per_vertex_data( + int p_vertex_count, + const std::vector<FBXDocParser::MeshGeometry::Edge> &p_edge_map, + const std::vector<int> &p_mesh_indices, + const FBXDocParser::MeshGeometry::MappingData<T> &p_mapping_data, + R (*collector_function)(const Vector<VertexData<T>> *p_vertex_data, R p_fall_back), + R p_fall_back) const { + /* When index_to_direct is set + * index size is 184 ( contains index for the data array [values 0, 96] ) + * data size is 96 (contains uv coordinates) + * this means index is simple data reduction basically + */ + //// + if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct && p_mapping_data.index.size() == 0) { + print_verbose("debug count: index size: " + itos(p_mapping_data.index.size()) + ", data size: " + itos(p_mapping_data.data.size())); + print_verbose("vertex indices count: " + itos(p_mesh_indices.size())); + print_verbose("Edge map size: " + itos(p_edge_map.size())); + } + + ERR_FAIL_COND_V_MSG(p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct && p_mapping_data.index.size() == 0, (HashMap<int, R>()), "FBX importer needs to map correctly to this field, please specify the override index name to fix this problem!"); + ERR_FAIL_COND_V_MSG(p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index && p_mapping_data.index.size() == 0, (HashMap<int, R>()), "The FBX seems corrupted"); + + // Aggregate vertex data. + HashMap<Vertex, Vector<VertexData<T>>> aggregate_vertex_data; + + switch (p_mapping_data.map_type) { + case FBXDocParser::MeshGeometry::MapType::none: { + // No data nothing to do. + return (HashMap<int, R>()); + } + case FBXDocParser::MeshGeometry::MapType::vertex: { + ERR_FAIL_COND_V_MSG(p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct, (HashMap<int, R>()), "We will support in future"); + + if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::direct) { + // The data is mapped per vertex directly. + ERR_FAIL_COND_V_MSG((int)p_mapping_data.data.size() != p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR01"); + for (size_t vertex_index = 0; vertex_index < p_mapping_data.data.size(); vertex_index += 1) { + aggregate_vertex_data[vertex_index].push_back({ -1, p_mapping_data.data[vertex_index] }); + } + } else { + // The data is mapped per vertex using a reference. + // The indices array, contains a *reference_id for each vertex. + // * Note that the reference_id is the id of data into the data array. + // + // https://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_layer_element_html + ERR_FAIL_COND_V_MSG((int)p_mapping_data.index.size() != p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR02"); + for (size_t vertex_index = 0; vertex_index < p_mapping_data.index.size(); vertex_index += 1) { + ERR_FAIL_INDEX_V_MSG(p_mapping_data.index[vertex_index], (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR03."); + aggregate_vertex_data[vertex_index].push_back({ -1, p_mapping_data.data[p_mapping_data.index[vertex_index]] }); + } + } + } break; + case FBXDocParser::MeshGeometry::MapType::polygon_vertex: { + if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct) { + // The data is mapped using each index from the indexes array then direct to the data (data reduction algorithm) + ERR_FAIL_COND_V_MSG((int)p_mesh_indices.size() != (int)p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR04"); + int polygon_id = -1; + for (size_t polygon_vertex_index = 0; polygon_vertex_index < p_mapping_data.index.size(); polygon_vertex_index += 1) { + if (is_start_of_polygon(p_mesh_indices, polygon_vertex_index)) { + polygon_id += 1; + } + const int vertex_index = get_vertex_from_polygon_vertex(p_mesh_indices, polygon_vertex_index); + ERR_FAIL_COND_V_MSG(vertex_index < 0, (HashMap<int, R>()), "FBX file corrupted: #ERR05"); + ERR_FAIL_COND_V_MSG(vertex_index >= p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR06"); + const int index_to_direct = p_mapping_data.index[polygon_vertex_index]; + T value = p_mapping_data.data[index_to_direct]; + aggregate_vertex_data[vertex_index].push_back({ polygon_id, value }); + } + } else if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::direct) { + // The data are mapped per polygon vertex directly. + ERR_FAIL_COND_V_MSG((int)p_mesh_indices.size() != (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR04"); + int polygon_id = -1; + for (size_t polygon_vertex_index = 0; polygon_vertex_index < p_mapping_data.data.size(); polygon_vertex_index += 1) { + if (is_start_of_polygon(p_mesh_indices, polygon_vertex_index)) { + polygon_id += 1; + } + const int vertex_index = get_vertex_from_polygon_vertex(p_mesh_indices, polygon_vertex_index); + ERR_FAIL_COND_V_MSG(vertex_index < 0, (HashMap<int, R>()), "FBX file corrupted: #ERR05"); + ERR_FAIL_COND_V_MSG(vertex_index >= p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR06"); + + aggregate_vertex_data[vertex_index].push_back({ polygon_id, p_mapping_data.data[polygon_vertex_index] }); + } + } else { + // The data is mapped per polygon_vertex using a reference. + // The indices array, contains a *reference_id for each polygon_vertex. + // * Note that the reference_id is the id of data into the data array. + // + // https://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_layer_element_html + ERR_FAIL_COND_V_MSG(p_mesh_indices.size() != p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR7"); + int polygon_id = -1; + for (size_t polygon_vertex_index = 0; polygon_vertex_index < p_mapping_data.index.size(); polygon_vertex_index += 1) { + if (is_start_of_polygon(p_mesh_indices, polygon_vertex_index)) { + polygon_id += 1; + } + const int vertex_index = get_vertex_from_polygon_vertex(p_mesh_indices, polygon_vertex_index); + ERR_FAIL_COND_V_MSG(vertex_index < 0, (HashMap<int, R>()), "FBX file corrupted: #ERR8"); + ERR_FAIL_COND_V_MSG(vertex_index >= p_vertex_count, (HashMap<int, R>()), "FBX file seems corrupted: #ERR9."); + ERR_FAIL_COND_V_MSG(p_mapping_data.index[polygon_vertex_index] < 0, (HashMap<int, R>()), "FBX file seems corrupted: #ERR10."); + ERR_FAIL_COND_V_MSG(p_mapping_data.index[polygon_vertex_index] >= (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR11."); + aggregate_vertex_data[vertex_index].push_back({ polygon_id, p_mapping_data.data[p_mapping_data.index[polygon_vertex_index]] }); + } + } + } break; + case FBXDocParser::MeshGeometry::MapType::polygon: { + if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::direct) { + // The data are mapped per polygon directly. + const int polygon_count = count_polygons(p_mesh_indices); + ERR_FAIL_COND_V_MSG(polygon_count != (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR12"); + + // Advance each polygon vertex, each new polygon advance the polygon index. + int polygon_index = -1; + for (size_t polygon_vertex_index = 0; + polygon_vertex_index < p_mesh_indices.size(); + polygon_vertex_index += 1) { + if (is_start_of_polygon(p_mesh_indices, polygon_vertex_index)) { + polygon_index += 1; + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR13"); + } + + const int vertex_index = get_vertex_from_polygon_vertex(p_mesh_indices, polygon_vertex_index); + ERR_FAIL_INDEX_V_MSG(vertex_index, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR14"); + + aggregate_vertex_data[vertex_index].push_back({ polygon_index, p_mapping_data.data[polygon_index] }); + } + ERR_FAIL_COND_V_MSG((polygon_index + 1) != polygon_count, (HashMap<int, R>()), "FBX file seems corrupted: #ERR16. Not all Polygons are present in the file."); + } else { + // The data is mapped per polygon using a reference. + // The indices array, contains a *reference_id for each polygon. + // * Note that the reference_id is the id of data into the data array. + // + // https://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_layer_element_html + const int polygon_count = count_polygons(p_mesh_indices); + ERR_FAIL_COND_V_MSG(polygon_count != (int)p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR17"); + + // Advance each polygon vertex, each new polygon advance the polygon index. + int polygon_index = -1; + for (size_t polygon_vertex_index = 0; + polygon_vertex_index < p_mesh_indices.size(); + polygon_vertex_index += 1) { + if (is_start_of_polygon(p_mesh_indices, polygon_vertex_index)) { + polygon_index += 1; + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR18"); + ERR_FAIL_INDEX_V_MSG(p_mapping_data.index[polygon_index], (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR19"); + } + + const int vertex_index = get_vertex_from_polygon_vertex(p_mesh_indices, polygon_vertex_index); + ERR_FAIL_INDEX_V_MSG(vertex_index, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR20"); + + aggregate_vertex_data[vertex_index].push_back({ polygon_index, p_mapping_data.data[p_mapping_data.index[polygon_index]] }); + } + ERR_FAIL_COND_V_MSG((polygon_index + 1) != polygon_count, (HashMap<int, R>()), "FBX file seems corrupted: #ERR22. Not all Polygons are present in the file."); + } + } break; + case FBXDocParser::MeshGeometry::MapType::edge: { + if (p_mapping_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::direct) { + // The data are mapped per edge directly. + ERR_FAIL_COND_V_MSG(p_edge_map.size() != p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR23"); + for (size_t edge_index = 0; edge_index < p_mapping_data.data.size(); edge_index += 1) { + const FBXDocParser::MeshGeometry::Edge edge = FBXDocParser::MeshGeometry::get_edge(p_edge_map, edge_index); + ERR_FAIL_INDEX_V_MSG(edge.vertex_0, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR24"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_1, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR25"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_0, (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR26"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_1, (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR27"); + aggregate_vertex_data[edge.vertex_0].push_back({ -1, p_mapping_data.data[edge_index] }); + aggregate_vertex_data[edge.vertex_1].push_back({ -1, p_mapping_data.data[edge_index] }); + } + } else { + // The data is mapped per edge using a reference. + // The indices array, contains a *reference_id for each polygon. + // * Note that the reference_id is the id of data into the data array. + // + // https://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_layer_element_html + ERR_FAIL_COND_V_MSG(p_edge_map.size() != p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file seems corrupted: #ERR28"); + for (size_t edge_index = 0; edge_index < p_mapping_data.data.size(); edge_index += 1) { + const FBXDocParser::MeshGeometry::Edge edge = FBXDocParser::MeshGeometry::get_edge(p_edge_map, edge_index); + ERR_FAIL_INDEX_V_MSG(edge.vertex_0, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR29"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_1, p_vertex_count, (HashMap<int, R>()), "FBX file corrupted: #ERR30"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_0, (int)p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR31"); + ERR_FAIL_INDEX_V_MSG(edge.vertex_1, (int)p_mapping_data.index.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR32"); + ERR_FAIL_INDEX_V_MSG(p_mapping_data.index[edge.vertex_0], (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR33"); + ERR_FAIL_INDEX_V_MSG(p_mapping_data.index[edge.vertex_1], (int)p_mapping_data.data.size(), (HashMap<int, R>()), "FBX file corrupted: #ERR34"); + aggregate_vertex_data[edge.vertex_0].push_back({ -1, p_mapping_data.data[p_mapping_data.index[edge_index]] }); + aggregate_vertex_data[edge.vertex_1].push_back({ -1, p_mapping_data.data[p_mapping_data.index[edge_index]] }); + } + } + } break; + case FBXDocParser::MeshGeometry::MapType::all_the_same: { + // No matter the mode, no matter the data size; The first always win + // and is set to all the vertices. + ERR_FAIL_COND_V_MSG(p_mapping_data.data.size() <= 0, (HashMap<int, R>()), "FBX file seems corrupted: #ERR35"); + if (p_mapping_data.data.size() > 0) { + for (int vertex_index = 0; vertex_index < p_vertex_count; vertex_index += 1) { + aggregate_vertex_data[vertex_index].push_back({ -1, p_mapping_data.data[0] }); + } + } + } break; + } + + if (aggregate_vertex_data.size() == 0) { + return (HashMap<int, R>()); + } + + // A map is used because turns out that the some FBX file are not well organized + // with vertices well compacted. Using a map allows avoid those issues. + HashMap<Vertex, R> result; + + // Aggregate the collected data. + for (const Vertex *index = aggregate_vertex_data.next(nullptr); index != nullptr; index = aggregate_vertex_data.next(index)) { + Vector<VertexData<T>> *aggregated_vertex = aggregate_vertex_data.getptr(*index); + // This can't be null because we are just iterating. + CRASH_COND(aggregated_vertex == nullptr); + + ERR_FAIL_INDEX_V_MSG(0, aggregated_vertex->size(), (HashMap<int, R>()), "The FBX file is corrupted, No valid data for this vertex index."); + result[*index] = collector_function(aggregated_vertex, p_fall_back); + } + + // Sanitize the data now, if the file is broken we can try import it anyway. + bool problem_found = false; + for (size_t i = 0; i < p_mesh_indices.size(); i += 1) { + const Vertex vertex = get_vertex_from_polygon_vertex(p_mesh_indices, i); + if (result.has(vertex) == false) { + result[vertex] = p_fall_back; + problem_found = true; + } + } + if (problem_found) { + WARN_PRINT("Some data is missing, this FBX file may be corrupted: #WARN0."); + } + + return result; +} + +template <class T> +HashMap<int, T> FBXMeshData::extract_per_polygon( + int p_vertex_count, + const std::vector<int> &p_polygon_indices, + const FBXDocParser::MeshGeometry::MappingData<T> &p_fbx_data, + T p_fallback_value) const { + ERR_FAIL_COND_V_MSG(p_fbx_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct && p_fbx_data.data.size() == 0, (HashMap<int, T>()), "invalid index to direct array"); + ERR_FAIL_COND_V_MSG(p_fbx_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index && p_fbx_data.index.size() == 0, (HashMap<int, T>()), "The FBX seems corrupted"); + + const int polygon_count = count_polygons(p_polygon_indices); + + // Aggregate vertex data. + HashMap<int, Vector<T>> aggregate_polygon_data; + + switch (p_fbx_data.map_type) { + case FBXDocParser::MeshGeometry::MapType::none: { + // No data nothing to do. + return (HashMap<int, T>()); + } + case FBXDocParser::MeshGeometry::MapType::vertex: { + ERR_FAIL_V_MSG((HashMap<int, T>()), "This data can't be extracted and organized per polygon, since into the FBX is mapped per vertex. This should not happen."); + } break; + case FBXDocParser::MeshGeometry::MapType::polygon_vertex: { + ERR_FAIL_V_MSG((HashMap<int, T>()), "This data can't be extracted and organized per polygon, since into the FBX is mapped per polygon vertex. This should not happen."); + } break; + case FBXDocParser::MeshGeometry::MapType::polygon: { + if (p_fbx_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::index_to_direct) { + // The data is stored efficiently index_to_direct allows less data in the FBX file. + for (int polygon_index = 0; + polygon_index < polygon_count; + polygon_index += 1) { + if (p_fbx_data.index.size() == 0) { + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_fbx_data.data.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR62"); + aggregate_polygon_data[polygon_index].push_back(p_fbx_data.data[polygon_index]); + } else { + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_fbx_data.index.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR62"); + + const int index_to_direct = p_fbx_data.index[polygon_index]; + T value = p_fbx_data.data[index_to_direct]; + aggregate_polygon_data[polygon_index].push_back(value); + } + } + } else if (p_fbx_data.ref_type == FBXDocParser::MeshGeometry::ReferenceType::direct) { + // The data are mapped per polygon directly. + ERR_FAIL_COND_V_MSG(polygon_count != (int)p_fbx_data.data.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR51"); + + // Advance each polygon vertex, each new polygon advance the polygon index. + for (int polygon_index = 0; + polygon_index < polygon_count; + polygon_index += 1) { + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_fbx_data.data.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR52"); + aggregate_polygon_data[polygon_index].push_back(p_fbx_data.data[polygon_index]); + } + } else { + // The data is mapped per polygon using a reference. + // The indices array, contains a *reference_id for each polygon. + // * Note that the reference_id is the id of data into the data array. + // + // https://help.autodesk.com/view/FBX/2017/ENU/?guid=__cpp_ref_class_fbx_layer_element_html + ERR_FAIL_COND_V_MSG(polygon_count != (int)p_fbx_data.index.size(), (HashMap<int, T>()), "FBX file seems corrupted: #ERR52"); + + // Advance each polygon vertex, each new polygon advance the polygon index. + for (int polygon_index = 0; + polygon_index < polygon_count; + polygon_index += 1) { + ERR_FAIL_INDEX_V_MSG(polygon_index, (int)p_fbx_data.index.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR53"); + ERR_FAIL_INDEX_V_MSG(p_fbx_data.index[polygon_index], (int)p_fbx_data.data.size(), (HashMap<int, T>()), "FBX file is corrupted: #ERR54"); + aggregate_polygon_data[polygon_index].push_back(p_fbx_data.data[p_fbx_data.index[polygon_index]]); + } + } + } break; + case FBXDocParser::MeshGeometry::MapType::edge: { + ERR_FAIL_V_MSG((HashMap<int, T>()), "This data can't be extracted and organized per polygon, since into the FBX is mapped per edge. This should not happen."); + } break; + case FBXDocParser::MeshGeometry::MapType::all_the_same: { + // No matter the mode, no matter the data size; The first always win + // and is set to all the vertices. + ERR_FAIL_COND_V_MSG(p_fbx_data.data.size() <= 0, (HashMap<int, T>()), "FBX file seems corrupted: #ERR55"); + if (p_fbx_data.data.size() > 0) { + for (int polygon_index = 0; polygon_index < polygon_count; polygon_index += 1) { + aggregate_polygon_data[polygon_index].push_back(p_fbx_data.data[0]); + } + } + } break; + } + + if (aggregate_polygon_data.size() == 0) { + return (HashMap<int, T>()); + } + + // A map is used because turns out that the some FBX file are not well organized + // with vertices well compacted. Using a map allows avoid those issues. + HashMap<int, T> polygons; + + // Take the first value for each vertex. + for (const Vertex *index = aggregate_polygon_data.next(nullptr); index != nullptr; index = aggregate_polygon_data.next(index)) { + Vector<T> *aggregated_polygon = aggregate_polygon_data.getptr(*index); + // This can't be null because we are just iterating. + CRASH_COND(aggregated_polygon == nullptr); + + ERR_FAIL_INDEX_V_MSG(0, (int)aggregated_polygon->size(), (HashMap<int, T>()), "The FBX file is corrupted, No valid data for this polygon index."); + + // Validate the final value. + polygons[*index] = (*aggregated_polygon)[0]; + } + + // Sanitize the data now, if the file is broken we can try import it anyway. + bool problem_found = false; + for (int polygon_i = 0; polygon_i < polygon_count; polygon_i += 1) { + if (polygons.has(polygon_i) == false) { + polygons[polygon_i] = p_fallback_value; + problem_found = true; + } + } + if (problem_found) { + WARN_PRINT("Some data is missing, this FBX file may be corrupted: #WARN1."); + } + + return polygons; +} + +void FBXMeshData::extract_morphs(const FBXDocParser::MeshGeometry *mesh_geometry, HashMap<String, MorphVertexData> &r_data) { + r_data.clear(); + + const int vertex_count = mesh_geometry->get_vertices().size(); + + for (const FBXDocParser::BlendShape *blend_shape : mesh_geometry->get_blend_shapes()) { + for (const FBXDocParser::BlendShapeChannel *blend_shape_channel : blend_shape->BlendShapeChannels()) { + const std::vector<const FBXDocParser::ShapeGeometry *> &shape_geometries = blend_shape_channel->GetShapeGeometries(); + for (const FBXDocParser::ShapeGeometry *shape_geometry : shape_geometries) { + String morph_name = ImportUtils::FBXAnimMeshName(shape_geometry->Name()).c_str(); + if (morph_name.is_empty()) { + morph_name = "morph"; + } + + // TODO we have only these?? + const std::vector<unsigned int> &morphs_vertex_indices = shape_geometry->GetIndices(); + const std::vector<Vector3> &morphs_vertices = shape_geometry->GetVertices(); + const std::vector<Vector3> &morphs_normals = shape_geometry->GetNormals(); + + ERR_FAIL_COND_MSG((int)morphs_vertex_indices.size() > vertex_count, "The FBX file is corrupted: #ERR103"); + ERR_FAIL_COND_MSG(morphs_vertex_indices.size() != morphs_vertices.size(), "The FBX file is corrupted: #ERR104"); + ERR_FAIL_COND_MSG((int)morphs_vertices.size() > vertex_count, "The FBX file is corrupted: #ERR105"); + ERR_FAIL_COND_MSG(morphs_normals.size() != 0 && morphs_normals.size() != morphs_vertices.size(), "The FBX file is corrupted: #ERR106"); + + if (r_data.has(morph_name) == false) { + // This morph doesn't exist yet. + // Create it. + MorphVertexData md; + md.vertices.resize(vertex_count); + md.normals.resize(vertex_count); + r_data.set(morph_name, md); + } + + MorphVertexData *data = r_data.getptr(morph_name); + Vector3 *data_vertices_ptr = data->vertices.ptrw(); + Vector3 *data_normals_ptr = data->normals.ptrw(); + + for (int i = 0; i < (int)morphs_vertex_indices.size(); i += 1) { + const Vertex vertex = morphs_vertex_indices[i]; + + ERR_FAIL_INDEX_MSG(vertex, vertex_count, "The blend shapes of this FBX file are corrupted. It has a not valid vertex."); + + data_vertices_ptr[vertex] = morphs_vertices[i]; + + if (morphs_normals.size() != 0) { + data_normals_ptr[vertex] = morphs_normals[i]; + } + } + } + } + } +} diff --git a/modules/fbx/data/fbx_mesh_data.h b/modules/fbx/data/fbx_mesh_data.h new file mode 100644 index 0000000000..77510ff2ec --- /dev/null +++ b/modules/fbx/data/fbx_mesh_data.h @@ -0,0 +1,184 @@ +/*************************************************************************/ +/* fbx_mesh_data.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_MESH_DATA_H +#define FBX_MESH_DATA_H + +#include "core/templates/hash_map.h" +#include "editor/import/resource_importer_scene.h" +#include "editor/import/scene_importer_mesh_node_3d.h" +#include "scene/3d/mesh_instance_3d.h" +#include "scene/resources/surface_tool.h" + +#include "fbx_bone.h" +#include "fbx_parser/FBXMeshGeometry.h" +#include "import_state.h" +#include "tools/import_utils.h" + +struct FBXNode; +struct FBXMeshData; +struct FBXBone; +struct ImportState; + +struct VertexWeightMapping { + Vector<real_t> weights; + Vector<int> bones; + // This extra vector is used because the bone id is computed in a second step. + // TODO Get rid of this extra step is a good idea. + Vector<Ref<FBXBone>> bones_ref; +}; + +template <class T> +struct VertexData { + int polygon_index; + T data; +}; + +// Caches mesh information and instantiates meshes for you using helper functions. +struct FBXMeshData : Reference { + struct MorphVertexData { + // TODO we have only these?? + /// Each element is a vertex. Not supposed to be void. + Vector<Vector3> vertices; + /// Each element is a vertex. Not supposed to be void. + Vector<Vector3> normals; + }; + + // FIXME: remove this is a hack for testing only + mutable const FBXDocParser::MeshGeometry *mesh_geometry = nullptr; + + Ref<FBXNode> mesh_node = nullptr; + /// vertex id, Weight Info + /// later: perf we can use array here + HashMap<int, VertexWeightMapping> vertex_weights; + + // translate fbx mesh data from document context to FBX Mesh Geometry Context + bool valid_weight_indexes = false; + + EditorSceneImporterMeshNode3D *create_fbx_mesh(const ImportState &state, const FBXDocParser::MeshGeometry *p_mesh_geometry, const FBXDocParser::Model *model, bool use_compression); + + void gen_weight_info(Ref<SurfaceTool> st, int vertex_id) const; + + /* mesh maximum weight count */ + bool valid_weight_count = false; + int max_weight_count = 0; + uint64_t armature_id = 0; + bool valid_armature_id = false; + EditorSceneImporterMeshNode3D *godot_mesh_instance = nullptr; + +private: + void sanitize_vertex_weights(const ImportState &state); + + /// Make sure to reorganize the vertices so that the correct UV is taken. + /// This step is needed because differently from the normal, that can be + /// combined, the UV may need its own triangle because sometimes they have + /// really different UV for the same vertex but different polygon. + /// This function make sure to add another vertex for those UVS. + void reorganize_vertices( + std::vector<int> &r_polygon_indices, + std::vector<Vector3> &r_vertices, + HashMap<int, Vector3> &r_normals, + HashMap<int, Vector2> &r_uv_1, + HashMap<int, Vector2> &r_uv_2, + HashMap<int, Color> &r_color, + HashMap<String, MorphVertexData> &r_morphs, + HashMap<int, HashMap<int, Vector3>> &r_normals_raw, + HashMap<int, HashMap<int, Color>> &r_colors_raw, + HashMap<int, HashMap<int, Vector2>> &r_uv_1_raw, + HashMap<int, HashMap<int, Vector2>> &r_uv_2_raw); + + void add_vertex( + const ImportState &state, + Ref<SurfaceTool> p_surface_tool, + real_t p_scale, + int p_vertex, + const std::vector<Vector3> &p_vertices_position, + const HashMap<int, Vector3> &p_normals, + const HashMap<int, Vector2> &p_uvs_0, + const HashMap<int, Vector2> &p_uvs_1, + const HashMap<int, Color> &p_colors, + const Vector3 &p_morph_value = Vector3(), + const Vector3 &p_morph_normal = Vector3()); + + void triangulate_polygon(Ref<SurfaceTool> st, Vector<int> p_polygon_vertex, Vector<int> p_surface_vertex_map, const std::vector<Vector3> &p_vertices) const; + + /// This function is responsible to convert the FBX polygon vertex to + /// vertex index. + /// The polygon vertices are stored in an array with some negative + /// values. The negative values define the last face index. + /// For example the following `face_array` contains two faces, the former + /// with 3 vertices and the latter with a line: + /// [0,2,-2,3,-5] + /// Parsed as: + /// [0, 2, 1, 3, 4] + /// The negative values are computed using this formula: `(-value) - 1` + /// + /// Returns the vertex index from the poligon vertex. + /// Returns -1 if `p_index` is invalid. + int get_vertex_from_polygon_vertex(const std::vector<int> &p_face_indices, int p_index) const; + + /// Returns true if this polygon_vertex_index is the end of a new polygon. + bool is_end_of_polygon(const std::vector<int> &p_face_indices, int p_index) const; + + /// Returns true if this polygon_vertex_index is the begin of a new polygon. + bool is_start_of_polygon(const std::vector<int> &p_face_indices, int p_index) const; + + /// Returns the number of polygons. + int count_polygons(const std::vector<int> &p_face_indices) const; + + /// Used to extract data from the `MappingData` aligned with vertex. + /// Useful to extract normal/uvs/colors/tangents/etc... + /// If the function fails somehow, it returns an hollow vector and print an error. + template <class R, class T> + HashMap<int, R> extract_per_vertex_data( + int p_vertex_count, + const std::vector<FBXDocParser::MeshGeometry::Edge> &p_edges, + const std::vector<int> &p_mesh_indices, + const FBXDocParser::MeshGeometry::MappingData<T> &p_mapping_data, + R (*collector_function)(const Vector<VertexData<T>> *p_vertex_data, R p_fall_back), + R p_fall_back) const; + + /// Used to extract data from the `MappingData` organized per polygon. + /// Useful to extract the material + /// If the function fails somehow, it returns an hollow vector and print an error. + template <class T> + HashMap<int, T> extract_per_polygon( + int p_vertex_count, + const std::vector<int> &p_face_indices, + const FBXDocParser::MeshGeometry::MappingData<T> &p_fbx_data, + T p_fallback_value) const; + + /// Extracts the morph data and organizes it per vertices. + /// The returned `MorphVertexData` arrays are never something different + /// then the `vertex_count`. + void extract_morphs(const FBXDocParser::MeshGeometry *mesh_geometry, HashMap<String, MorphVertexData> &r_data); +}; + +#endif // FBX_MESH_DATA_H diff --git a/modules/fbx/data/fbx_node.h b/modules/fbx/data/fbx_node.h new file mode 100644 index 0000000000..a6f62f3388 --- /dev/null +++ b/modules/fbx/data/fbx_node.h @@ -0,0 +1,63 @@ +/*************************************************************************/ +/* fbx_node.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_NODE_H +#define FBX_NODE_H + +#include "fbx_skeleton.h" +#include "model_abstraction.h" +#include "pivot_transform.h" + +#include "fbx_parser/FBXDocument.h" + +class Node3D; +struct PivotTransform; + +struct FBXNode : Reference, ModelAbstraction { + uint64_t current_node_id = 0; + String node_name = String(); + Node3D *godot_node = nullptr; + + // used to parent the skeleton once the tree is built. + Ref<FBXSkeleton> skeleton_node = Ref<FBXSkeleton>(); + + void set_parent(Ref<FBXNode> p_parent) { + fbx_parent = p_parent; + } + + void set_pivot_transform(Ref<PivotTransform> p_pivot_transform) { + pivot_transform = p_pivot_transform; + } + + Ref<PivotTransform> pivot_transform = Ref<PivotTransform>(); // local and global xform data + Ref<FBXNode> fbx_parent = Ref<FBXNode>(); // parent node +}; + +#endif // FBX_NODE_H diff --git a/modules/fbx/data/fbx_skeleton.cpp b/modules/fbx/data/fbx_skeleton.cpp new file mode 100644 index 0000000000..622b589feb --- /dev/null +++ b/modules/fbx/data/fbx_skeleton.cpp @@ -0,0 +1,123 @@ +/*************************************************************************/ +/* fbx_skeleton.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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. */ +/*************************************************************************/ + +#include "fbx_skeleton.h" + +#include "import_state.h" + +#include "tools/import_utils.h" + +void FBXSkeleton::init_skeleton(const ImportState &state) { + int skeleton_bone_count = skeleton_bones.size(); + + if (skeleton == nullptr && skeleton_bone_count > 0) { + skeleton = memnew(Skeleton3D); + + if (fbx_node.is_valid()) { + // cache skeleton attachment for later during node creation + // can't be done until after node hierarchy is built + if (fbx_node->godot_node != state.root) { + fbx_node->skeleton_node = Ref<FBXSkeleton>(this); + print_verbose("cached armature skeleton attachment for node " + fbx_node->node_name); + } else { + // root node must never be a skeleton to prevent cyclic skeletons from being allowed (skeleton in a skeleton) + fbx_node->godot_node->add_child(skeleton); + skeleton->set_owner(state.root_owner); + skeleton->set_name("Skeleton3D"); + print_verbose("created armature skeleton for root"); + } + } else { + memfree(skeleton); + skeleton = nullptr; + print_error("[doc] skeleton has no valid node to parent nodes to - erasing"); + skeleton_bones.clear(); + return; + } + } + + // Make the bone name uniques. + for (int x = 0; x < skeleton_bone_count; x++) { + Ref<FBXBone> bone = skeleton_bones[x]; + if (bone.is_valid()) { + // Make sure the bone name is unique. + const String bone_name = bone->bone_name; + int same_name_count = 0; + for (int y = x; y < skeleton_bone_count; y++) { + Ref<FBXBone> other_bone = skeleton_bones[y]; + if (other_bone.is_valid()) { + if (other_bone->bone_name == bone_name) { + same_name_count += 1; + other_bone->bone_name += "_" + itos(same_name_count); + } + } + } + } + } + + Map<int, Ref<FBXBone>> bone_map; + // implement fbx cluster skin logic here this is where it goes + int bone_count = 0; + for (int x = 0; x < skeleton_bone_count; x++) { + Ref<FBXBone> bone = skeleton_bones[x]; + if (bone.is_valid()) { + skeleton->add_bone(bone->bone_name); + bone->godot_bone_id = bone_count; + bone->fbx_skeleton = Ref<FBXSkeleton>(this); + bone_map.insert(bone_count, bone); + print_verbose("added bone " + itos(bone->bone_id) + " " + bone->bone_name); + bone_count++; + } + } + + ERR_FAIL_COND_MSG(skeleton->get_bone_count() != bone_count, "Not all bones got added, is the file corrupted?"); + + for (Map<int, Ref<FBXBone>>::Element *bone_element = bone_map.front(); bone_element; bone_element = bone_element->next()) { + const Ref<FBXBone> bone = bone_element->value(); + int bone_index = bone_element->key(); + print_verbose("working on bone: " + itos(bone_index) + " bone name:" + bone->bone_name); + + skeleton->set_bone_rest(bone->godot_bone_id, get_unscaled_transform(bone->node->pivot_transform->LocalTransform, state.scale)); + + // lookup parent ID + if (bone->valid_parent && state.fbx_bone_map.has(bone->parent_bone_id)) { + Ref<FBXBone> parent_bone = state.fbx_bone_map[bone->parent_bone_id]; + int bone_id = skeleton->find_bone(parent_bone->bone_name); + if (bone_id != -1) { + skeleton->set_bone_parent(bone_index, bone_id); + } else { + print_error("invalid bone parent: " + parent_bone->bone_name); + } + } else { + if (bone->godot_bone_id != -1) { + skeleton->set_bone_parent(bone_index, -1); // no parent for this bone + } + } + } +} diff --git a/modules/fbx/data/fbx_skeleton.h b/modules/fbx/data/fbx_skeleton.h new file mode 100644 index 0000000000..df937cde49 --- /dev/null +++ b/modules/fbx/data/fbx_skeleton.h @@ -0,0 +1,53 @@ +/*************************************************************************/ +/* fbx_skeleton.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 FBX_SKELETON_H +#define FBX_SKELETON_H + +#include "fbx_bone.h" +#include "fbx_node.h" +#include "model_abstraction.h" + +#include "core/object/reference.h" +#include "scene/3d/skeleton_3d.h" + +struct FBXNode; +struct ImportState; +struct FBXBone; + +struct FBXSkeleton : Reference { + Ref<FBXNode> fbx_node = Ref<FBXNode>(); + Vector<Ref<FBXBone>> skeleton_bones = Vector<Ref<FBXBone>>(); + Skeleton3D *skeleton = nullptr; + + void init_skeleton(const ImportState &state); +}; + +#endif // FBX_SKELETON_H diff --git a/modules/fbx/data/import_state.h b/modules/fbx/data/import_state.h new file mode 100644 index 0000000000..83bc43faff --- /dev/null +++ b/modules/fbx/data/import_state.h @@ -0,0 +1,113 @@ +/*************************************************************************/ +/* import_state.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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; + bool is_blender_fbx = false; + + 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 diff --git a/modules/fbx/data/model_abstraction.h b/modules/fbx/data/model_abstraction.h new file mode 100644 index 0000000000..528960ab49 --- /dev/null +++ b/modules/fbx/data/model_abstraction.h @@ -0,0 +1,52 @@ +/*************************************************************************/ +/* model_abstraction.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 MODEL_ABSTRACTION_H +#define MODEL_ABSTRACTION_H + +#include "modules/fbx/fbx_parser/FBXDocument.h" + +struct ModelAbstraction { + mutable const FBXDocParser::Model *fbx_model = nullptr; + + void set_model(const FBXDocParser::Model *p_model) { + fbx_model = p_model; + } + + bool has_model() const { + return fbx_model != nullptr; + } + + const FBXDocParser::Model *get_model() const { + return fbx_model; + } +}; + +#endif // MODEL_ABSTRACTION_H diff --git a/modules/fbx/data/pivot_transform.cpp b/modules/fbx/data/pivot_transform.cpp new file mode 100644 index 0000000000..7a56074bc5 --- /dev/null +++ b/modules/fbx/data/pivot_transform.cpp @@ -0,0 +1,294 @@ +/*************************************************************************/ +/* pivot_transform.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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. */ +/*************************************************************************/ + +#include "pivot_transform.h" + +#include "tools/import_utils.h" + +void PivotTransform::ReadTransformChain() { + const FBXDocParser::PropertyTable *props = fbx_model->Props(); + const FBXDocParser::Model::RotOrder &rot = fbx_model->RotationOrder(); + const FBXDocParser::TransformInheritance &inheritType = fbx_model->InheritType(); + inherit_type = inheritType; // copy the inherit type we need it in the second step. + print_verbose("Model: " + String(fbx_model->Name().c_str()) + " Has inherit type: " + itos(fbx_model->InheritType())); + bool ok = false; + raw_pre_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "PreRotation", ok)); + if (ok) { + pre_rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(raw_pre_rotation)); + print_verbose("valid pre_rotation: " + raw_pre_rotation + " euler conversion: " + (pre_rotation.get_euler() * (180 / Math_PI))); + } + raw_post_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "PostRotation", ok)); + if (ok) { + post_rotation = ImportUtils::EulerToQuaternion(FBXDocParser::Model::RotOrder_EulerXYZ, ImportUtils::deg2rad(raw_post_rotation)); + print_verbose("valid post_rotation: " + raw_post_rotation + " euler conversion: " + (pre_rotation.get_euler() * (180 / Math_PI))); + } + const Vector3 &RotationPivot = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "RotationPivot", ok)); + if (ok) { + rotation_pivot = ImportUtils::FixAxisConversions(RotationPivot); + } + const Vector3 &RotationOffset = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "RotationOffset", ok)); + if (ok) { + rotation_offset = ImportUtils::FixAxisConversions(RotationOffset); + } + const Vector3 &ScalingOffset = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "ScalingOffset", ok)); + if (ok) { + scaling_offset = ImportUtils::FixAxisConversions(ScalingOffset); + } + const Vector3 &ScalingPivot = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "ScalingPivot", ok)); + if (ok) { + scaling_pivot = ImportUtils::FixAxisConversions(ScalingPivot); + } + const Vector3 &Translation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Translation", ok)); + if (ok) { + translation = ImportUtils::FixAxisConversions(Translation); + } + raw_rotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Rotation", ok)); + if (ok) { + rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(raw_rotation)); + } + const Vector3 &Scaling = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "Lcl Scaling", ok)); + if (ok) { + scaling = Scaling; + } + const Vector3 &GeometricScaling = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricScaling", ok)); + if (ok) { + geometric_scaling = GeometricScaling; + } else { + geometric_scaling = Vector3(0, 0, 0); + } + + const Vector3 &GeometricRotation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricRotation", ok)); + if (ok) { + geometric_rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(GeometricRotation)); + } else { + geometric_rotation = Quat(); + } + + const Vector3 &GeometricTranslation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricTranslation", ok)); + if (ok) { + geometric_translation = ImportUtils::FixAxisConversions(GeometricTranslation); + } else { + geometric_translation = Vector3(0, 0, 0); + } + + if (geometric_rotation != Quat()) { + print_error("geometric rotation is unsupported!"); + //CRASH_COND(true); + } + + if (!geometric_scaling.is_equal_approx(Vector3(1, 1, 1))) { + print_error("geometric scaling is unsupported!"); + //CRASH_COND(true); + } + + if (!geometric_translation.is_equal_approx(Vector3(0, 0, 0))) { + print_error("geometric translation is unsupported."); + //CRASH_COND(true); + } +} + +Transform PivotTransform::ComputeLocalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const { + Transform T, Roff, Rp, Soff, Sp, S; + + // Here I assume this is the operation which needs done. + // Its WorldTransform * V + + // Origin pivots + T.set_origin(p_translation); + Roff.set_origin(rotation_offset); + Rp.set_origin(rotation_pivot); + Soff.set_origin(scaling_offset); + Sp.set_origin(scaling_pivot); + + // Scaling node + S.scale(p_scaling); + // Rotation pivots + Transform Rpre = Transform(pre_rotation); + Transform R = Transform(p_rotation); + Transform Rpost = Transform(post_rotation); + + return T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse(); +} + +Transform PivotTransform::ComputeGlobalTransform(Transform t) const { + Vector3 pos = t.origin; + Vector3 scale = t.basis.get_scale(); + Quat rot = t.basis.get_rotation_quat(); + return ComputeGlobalTransform(pos, rot, scale); +} + +Transform PivotTransform::ComputeLocalTransform(Transform t) const { + Vector3 pos = t.origin; + Vector3 scale = t.basis.get_scale(); + Quat rot = t.basis.get_rotation_quat(); + return ComputeLocalTransform(pos, rot, scale); +} + +Transform PivotTransform::ComputeGlobalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const { + Transform T, Roff, Rp, Soff, Sp, S; + + // Here I assume this is the operation which needs done. + // Its WorldTransform * V + + // Origin pivots + T.set_origin(p_translation); + Roff.set_origin(rotation_offset); + Rp.set_origin(rotation_pivot); + Soff.set_origin(scaling_offset); + Sp.set_origin(scaling_pivot); + + // Scaling node + S.scale(p_scaling); + + // Rotation pivots + Transform Rpre = Transform(pre_rotation); + Transform R = Transform(p_rotation); + Transform Rpost = Transform(post_rotation); + + Transform parent_global_xform; + Transform parent_local_scaling_m; + + if (parent_transform.is_valid()) { + parent_global_xform = parent_transform->GlobalTransform; + parent_local_scaling_m = parent_transform->Local_Scaling_Matrix; + } + + Transform local_rotation_m, parent_global_rotation_m; + Quat parent_global_rotation = parent_global_xform.basis.get_rotation_quat(); + parent_global_rotation_m.basis.set_quat(parent_global_rotation); + local_rotation_m = Rpre * R * Rpost; + + //Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quat().normalized()); + + Transform local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation; + Vector3 parent_translation = parent_global_xform.get_origin(); + parent_shear_translation.origin = parent_translation; + parent_shear_rotation = parent_shear_translation.affine_inverse() * parent_global_xform; + parent_shear_scaling = parent_global_rotation_m.affine_inverse() * parent_shear_rotation; + local_shear_scaling = S; + + // Inherit type handler - we don't care about T here, just reordering RSrs etc. + Transform global_rotation_scale; + if (inherit_type == FBXDocParser::Transform_RrSs) { + global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_shear_scaling * local_shear_scaling; + } else if (inherit_type == FBXDocParser::Transform_RSrs) { + global_rotation_scale = parent_global_rotation_m * parent_shear_scaling * local_rotation_m * local_shear_scaling; + } else if (inherit_type == FBXDocParser::Transform_Rrs) { + Transform parent_global_shear_m_noLocal = parent_shear_scaling * parent_local_scaling_m.affine_inverse(); + global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_global_shear_m_noLocal * local_shear_scaling; + } + Transform local_transform = T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse(); + //Transform local_translation_pivoted = Transform(Basis(), LocalTransform.origin); + + // manual hack to force SSC not to be compensated for - until we can handle it properly with tests + return parent_global_xform * local_transform; +} + +void PivotTransform::ComputePivotTransform() { + Transform T, Roff, Rp, Soff, Sp, S; + + // Here I assume this is the operation which needs done. + // Its WorldTransform * V + + // Origin pivots + T.set_origin(translation); + Roff.set_origin(rotation_offset); + Rp.set_origin(rotation_pivot); + Soff.set_origin(scaling_offset); + Sp.set_origin(scaling_pivot); + + // Scaling node + if (!scaling.is_equal_approx(Vector3())) { + S.scale(scaling); + } else { + S.scale(Vector3(1, 1, 1)); + } + Local_Scaling_Matrix = S; // copy for when node / child is looking for the value of this. + + // Rotation pivots + Transform Rpre = Transform(pre_rotation); + Transform R = Transform(rotation); + Transform Rpost = Transform(post_rotation); + + Transform parent_global_xform; + Transform parent_local_scaling_m; + + if (parent_transform.is_valid()) { + parent_global_xform = parent_transform->GlobalTransform; + parent_local_scaling_m = parent_transform->Local_Scaling_Matrix; + } + + Transform local_rotation_m, parent_global_rotation_m; + Quat parent_global_rotation = parent_global_xform.basis.get_rotation_quat(); + parent_global_rotation_m.basis.set_quat(parent_global_rotation); + local_rotation_m = Rpre * R * Rpost; + + //Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quat().normalized()); + + Transform local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation; + Vector3 parent_translation = parent_global_xform.get_origin(); + parent_shear_translation.origin = parent_translation; + parent_shear_rotation = parent_shear_translation.affine_inverse() * parent_global_xform; + parent_shear_scaling = parent_global_rotation_m.affine_inverse() * parent_shear_rotation; + local_shear_scaling = S; + + // Inherit type handler - we don't care about T here, just reordering RSrs etc. + Transform global_rotation_scale; + if (inherit_type == FBXDocParser::Transform_RrSs) { + global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_shear_scaling * local_shear_scaling; + } else if (inherit_type == FBXDocParser::Transform_RSrs) { + global_rotation_scale = parent_global_rotation_m * parent_shear_scaling * local_rotation_m * local_shear_scaling; + } else if (inherit_type == FBXDocParser::Transform_Rrs) { + Transform parent_global_shear_m_noLocal = parent_shear_scaling * parent_local_scaling_m.inverse(); + global_rotation_scale = parent_global_rotation_m * local_rotation_m * parent_global_shear_m_noLocal * local_shear_scaling; + } + LocalTransform = Transform(); + LocalTransform = T * Roff * Rp * Rpre * R * Rpost.affine_inverse() * Rp.affine_inverse() * Soff * Sp * S * Sp.affine_inverse(); + + ERR_FAIL_COND_MSG(LocalTransform.basis.determinant() == 0, "invalid scale reset"); + + Transform local_translation_pivoted = Transform(Basis(), LocalTransform.origin); + GlobalTransform = Transform(); + //GlobalTransform = parent_global_xform * LocalTransform; + Transform global_origin = Transform(Basis(), parent_translation); + GlobalTransform = (global_origin * local_translation_pivoted) * global_rotation_scale; + + ImportUtils::debug_xform("local xform calculation", LocalTransform); + print_verbose("scale of node: " + S.basis.get_scale_local()); + print_verbose("---------------------------------------------------------------"); +} + +void PivotTransform::Execute() { + ReadTransformChain(); + ComputePivotTransform(); + + ImportUtils::debug_xform("global xform: ", GlobalTransform); + computed_global_xform = true; +} diff --git a/modules/fbx/data/pivot_transform.h b/modules/fbx/data/pivot_transform.h new file mode 100644 index 0000000000..9996027870 --- /dev/null +++ b/modules/fbx/data/pivot_transform.h @@ -0,0 +1,115 @@ +/*************************************************************************/ +/* pivot_transform.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 PIVOT_TRANSFORM_H +#define PIVOT_TRANSFORM_H + +#include "core/math/transform.h" +#include "core/object/reference.h" + +#include "model_abstraction.h" + +#include "fbx_parser/FBXDocument.h" +#include "tools/import_utils.h" + +enum TransformationComp { + TransformationComp_Translation, + TransformationComp_Scaling, + TransformationComp_Rotation, + TransformationComp_RotationOffset, + TransformationComp_RotationPivot, + TransformationComp_PreRotation, + TransformationComp_PostRotation, + TransformationComp_ScalingOffset, + TransformationComp_ScalingPivot, + TransformationComp_GeometricTranslation, + TransformationComp_GeometricRotation, + TransformationComp_GeometricScaling, + TransformationComp_MAXIMUM +}; +// Abstract away pivot data so its simpler to handle +struct PivotTransform : Reference, ModelAbstraction { + // at the end we want to keep geometric_ everything, post and pre rotation + // these are used during animation data processing / keyframe ingestion the rest can be simplified down / out. + Quat pre_rotation = Quat(); + Quat post_rotation = Quat(); + Quat rotation = Quat(); + Quat geometric_rotation = Quat(); + Vector3 rotation_pivot = Vector3(); + Vector3 rotation_offset = Vector3(); + Vector3 scaling_offset = Vector3(1.0, 1.0, 1.0); + Vector3 scaling_pivot = Vector3(1.0, 1.0, 1.0); + Vector3 translation = Vector3(); + Vector3 scaling = Vector3(1.0, 1.0, 1.0); + Vector3 geometric_scaling = Vector3(1.0, 1.0, 1.0); + Vector3 geometric_translation = Vector3(); + + Vector3 raw_rotation = Vector3(); + Vector3 raw_post_rotation = Vector3(); + Vector3 raw_pre_rotation = Vector3(); + + /* Read pivots from the document */ + void ReadTransformChain(); + + void debug_pivot_xform(String p_name) { + print_verbose("debugging node name: " + p_name); + print_verbose("raw rotation: " + raw_rotation * (180 / Math_PI)); + print_verbose("raw pre_rotation " + raw_pre_rotation * (180 / Math_PI)); + print_verbose("raw post_rotation " + raw_post_rotation * (180 / Math_PI)); + } + + Transform ComputeGlobalTransform(Transform t) const; + Transform ComputeLocalTransform(Transform t) const; + Transform ComputeGlobalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const; + Transform ComputeLocalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const; + + /* Extract into xforms and calculate once */ + void ComputePivotTransform(); + + /* Execute the command for the pivot generation */ + void Execute(); + + void set_parent(Ref<PivotTransform> p_parent) { + parent_transform = p_parent; + } + + bool computed_global_xform = false; + Ref<PivotTransform> parent_transform = Ref<PivotTransform>(); + //Transform chain[TransformationComp_MAXIMUM]; + + // cached for later use + Transform GlobalTransform = Transform(); + Transform LocalTransform = Transform(); + Transform Local_Scaling_Matrix = Transform(); // used for inherit type. + Transform GeometricTransform = Transform(); // 3DS max only + FBXDocParser::TransformInheritance inherit_type = FBXDocParser::TransformInheritance_MAX; // maya fbx requires this - sorry <3 +}; + +#endif // PIVOT_TRANSFORM_H |