ArdaE
2f02792721
Previously, Godot only imported additional UV coordinates (3 to 8) into CUSTOM0, CUSTOM1, CUSTOM2. This commit makes the following changes: 1. Allow import of _CUSTOM0, _CUSTOM1, _CUSTOM2, _CUSTOM3, defined as 4 floating pointer numbers each. These are given priority over UV coordinates as custom attributes. 2. Increase the limit of UV imports from 3 pairs (UV3-UV8) to 4 pairs, so _CUSTOM3 can be supported via UV9 & UV10, if desired. These are imported only if a corresponding _CUSTOMn attribute doesn't exist. Note that Blender only supports 8 UV sets in total; therefore Blender users must use _CUSTOM3, defined as "Color" (so it's 4 floats) to import into Godot's CUSTOM3. 3. Increase the limit of UV exports from 3 pairs to 4 pairs, so that exported glTFs retain all the custom vertex attribute values, and CUSTOM3 will retain its values when the file is reimported. The exporter continues to use UV sets to store the custom attributes, with UV9 & UV10 used for CUSTOM3. In essence, this commit allows one to define CUSTOM3, while also improving the import options for the other CUSTOM shader built-ins.
311 lines
18 KiB
C++
311 lines
18 KiB
C++
/**************************************************************************/
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/* gltf_document.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#pragma once
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#include "extensions/gltf_document_extension.h"
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#include "extensions/gltf_spec_gloss.h"
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#include "gltf_defines.h"
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#include "gltf_state.h"
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#include "scene/3d/mesh_instance_3d.h"
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#include "scene/3d/multimesh_instance_3d.h"
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class CSGShape3D;
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class GridMap;
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class GLTFDocument : public Resource {
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GDCLASS(GLTFDocument, Resource);
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public:
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const int32_t JOINT_GROUP_SIZE = 4;
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enum {
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TEXTURE_TYPE_GENERIC = 0,
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TEXTURE_TYPE_NORMAL = 1,
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};
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enum RootNodeMode {
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ROOT_NODE_MODE_SINGLE_ROOT,
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ROOT_NODE_MODE_KEEP_ROOT,
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ROOT_NODE_MODE_MULTI_ROOT,
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};
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enum TextureMapMode {
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TEXTURE_MAP_MODE_DO_NOT_REMAP,
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TEXTURE_MAP_MODE_REMAP_TO_STANDARD_MATERIAL,
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};
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enum VisibilityMode {
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VISIBILITY_MODE_INCLUDE_REQUIRED,
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VISIBILITY_MODE_INCLUDE_OPTIONAL,
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VISIBILITY_MODE_EXCLUDE,
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};
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enum ImportFlags {
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IMPORT_FLAG_GENERATE_TANGENT_ARRAYS = 8,
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IMPORT_FLAG_USE_NAMED_SKIN_BINDS = 16,
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IMPORT_FLAG_DISCARD_MESHES_AND_MATERIALS = 32,
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IMPORT_FLAG_FORCE_DISABLE_MESH_COMPRESSION = 64,
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};
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private:
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int _naming_version = 2;
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String _image_format = "PNG";
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float _lossy_quality = 0.75f;
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String _fallback_image_format = "None";
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float _fallback_image_quality = 0.25f;
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Ref<GLTFDocumentExtension> _image_save_extension;
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RootNodeMode _root_node_mode = RootNodeMode::ROOT_NODE_MODE_SINGLE_ROOT;
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TextureMapMode _texture_map_mode = TextureMapMode::TEXTURE_MAP_MODE_REMAP_TO_STANDARD_MATERIAL;
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VisibilityMode _visibility_mode = VisibilityMode::VISIBILITY_MODE_INCLUDE_REQUIRED;
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protected:
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static void _bind_methods();
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String _gen_unique_name(Ref<GLTFState> p_state, const String &p_name);
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static Vector<Ref<GLTFDocumentExtension>> all_document_extensions;
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Vector<Ref<GLTFDocumentExtension>> document_extensions;
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public:
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static void register_gltf_document_extension(Ref<GLTFDocumentExtension> p_extension, bool p_first_priority = false);
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static void unregister_gltf_document_extension(Ref<GLTFDocumentExtension> p_extension);
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static void unregister_all_gltf_document_extensions();
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static Vector<Ref<GLTFDocumentExtension>> get_all_gltf_document_extensions();
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static Vector<String> get_supported_gltf_extensions();
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static HashSet<String> get_supported_gltf_extensions_hashset();
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static NodePath _find_material_node_path(Ref<GLTFState> p_state, const Ref<Material> &p_material);
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static Ref<GLTFObjectModelProperty> import_object_model_property(Ref<GLTFState> p_state, const String &p_json_pointer);
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static Ref<GLTFObjectModelProperty> export_object_model_property(Ref<GLTFState> p_state, const NodePath &p_node_path, const Node *p_godot_node, GLTFNodeIndex p_gltf_node_index);
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void set_naming_version(int p_version);
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int get_naming_version() const;
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void set_image_format(const String &p_image_format);
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String get_image_format() const;
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void set_lossy_quality(float p_lossy_quality);
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float get_lossy_quality() const;
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void set_fallback_image_format(const String &p_fallback_image_format);
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String get_fallback_image_format() const;
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void set_fallback_image_quality(float p_fallback_image_quality);
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float get_fallback_image_quality() const;
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void set_root_node_mode(RootNodeMode p_root_node_mode);
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RootNodeMode get_root_node_mode() const;
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void set_texture_map_mode(TextureMapMode p_texture_map_mode);
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TextureMapMode get_texture_map_mode() const { return _texture_map_mode; }
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void set_visibility_mode(VisibilityMode p_visibility_mode);
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VisibilityMode get_visibility_mode() const;
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static String _gen_unique_name_static(HashSet<String> &r_unique_names, const String &p_name);
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private:
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static void _append_khr_texture_transform_ext_json_pointer(PackedStringArray &p_split_json_pointer, const String &p_texture_name, const bool p_is_offset);
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void _build_parent_hierarchy(Ref<GLTFState> p_state);
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Error _parse_scenes(Ref<GLTFState> p_state);
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Error _parse_nodes(Ref<GLTFState> p_state);
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String _sanitize_animation_name(const String &p_name);
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String _gen_unique_animation_name(Ref<GLTFState> p_state, const String &p_name);
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String _sanitize_bone_name(const String &p_name);
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String _gen_unique_bone_name(Ref<GLTFState> p_state,
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const GLTFSkeletonIndex p_skel_i,
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const String &p_name);
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GLTFTextureIndex _set_texture(Ref<GLTFState> p_state, Ref<Texture2D> p_texture,
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StandardMaterial3D::TextureFilter p_filter_mode, bool p_repeats);
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Ref<Texture2D> _get_texture(Ref<GLTFState> p_state,
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const GLTFTextureIndex p_texture, int p_texture_type);
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GLTFTextureSamplerIndex _set_sampler_for_mode(Ref<GLTFState> p_state,
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StandardMaterial3D::TextureFilter p_filter_mode, bool p_repeats);
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Ref<GLTFTextureSampler> _get_sampler_for_texture(Ref<GLTFState> p_state,
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const GLTFTextureIndex p_texture);
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Error _parse_json(const String &p_path, Ref<GLTFState> p_state);
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Error _parse_glb(Ref<FileAccess> p_file, Ref<GLTFState> p_state);
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void _compute_node_heights(Ref<GLTFState> p_state);
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Error _parse_buffers(Ref<GLTFState> p_state, const String &p_base_path);
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Error _parse_buffer_views(Ref<GLTFState> p_state);
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Error _parse_accessors(Ref<GLTFState> p_state);
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template <typename T>
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static T _decode_unpack_indexed_data(const T &p_source, const PackedInt32Array &p_indices);
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PackedFloat32Array _decode_accessor_as_float32s(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedFloat64Array _decode_accessor_as_float64s(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedInt32Array _decode_accessor_as_int32s(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedVector2Array _decode_accessor_as_vec2(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedVector3Array _decode_accessor_as_vec3(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedVector4Array _decode_accessor_as_vec4(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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PackedColorArray _decode_accessor_as_color(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, const PackedInt32Array &p_packed_vertex_ids = PackedInt32Array());
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Vector<Quaternion> _decode_accessor_as_quaternion(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index);
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Array _decode_accessor_as_variants(const Ref<GLTFState> p_gltf_state, GLTFAccessorIndex p_accessor_index, Variant::Type p_variant_type);
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Error _parse_meshes(Ref<GLTFState> p_state);
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Error _serialize_textures(Ref<GLTFState> p_state);
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Error _serialize_texture_samplers(Ref<GLTFState> p_state);
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Error _serialize_images(Ref<GLTFState> p_state);
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Dictionary _serialize_image(Ref<GLTFState> p_state, Ref<Image> p_image, const String &p_image_format, float p_lossy_quality, Ref<GLTFDocumentExtension> p_image_save_extension);
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Error _serialize_lights(Ref<GLTFState> p_state);
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Ref<Image> _parse_image_bytes_into_image(Ref<GLTFState> p_state, const Vector<uint8_t> &p_bytes, const String &p_mime_type, int p_index, String &r_file_extension);
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void _parse_image_save_image(Ref<GLTFState> p_state, const Vector<uint8_t> &p_bytes, const String &p_resource_uri, const String &p_file_extension, int p_index, Ref<Image> p_image);
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Error _parse_images(Ref<GLTFState> p_state, const String &p_base_path);
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Error _parse_textures(Ref<GLTFState> p_state);
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Error _parse_texture_samplers(Ref<GLTFState> p_state);
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Error _parse_materials(Ref<GLTFState> p_state);
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void _set_texture_transform_uv1(const Dictionary &d, Ref<BaseMaterial3D> p_material);
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void spec_gloss_to_rough_metal(Ref<GLTFSpecGloss> r_spec_gloss,
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Ref<BaseMaterial3D> p_material);
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static void spec_gloss_to_metal_base_color(const Color &p_specular_factor,
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const Color &p_diffuse,
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Color &r_base_color,
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float &r_metallic);
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Error _parse_skins(Ref<GLTFState> p_state);
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Error _serialize_skins(Ref<GLTFState> p_state);
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Error _create_skins(Ref<GLTFState> p_state);
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bool _skins_are_same(const Ref<Skin> &p_skin_a, const Ref<Skin> &p_skin_b);
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void _remove_duplicate_skins(Ref<GLTFState> p_state);
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Error _serialize_cameras(Ref<GLTFState> p_state);
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Error _parse_cameras(Ref<GLTFState> p_state);
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Error _parse_lights(Ref<GLTFState> p_state);
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Error _parse_animations(Ref<GLTFState> p_state);
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void _parse_animation_pointer(Ref<GLTFState> p_state, const String &p_animation_json_pointer, const Ref<GLTFAnimation> p_gltf_animation, const GLTFAnimation::Interpolation p_interp, const Vector<double> &p_times, const int p_output_value_accessor_index);
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Error _serialize_animations(Ref<GLTFState> p_state);
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bool _does_skinned_mesh_require_placeholder_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node);
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BoneAttachment3D *_generate_bone_attachment(Skeleton3D *p_godot_skeleton, const Ref<GLTFNode> &p_bone_node);
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BoneAttachment3D *_generate_bone_attachment_compat_4pt4(Ref<GLTFState> p_state, Skeleton3D *p_skeleton, const GLTFNodeIndex p_node_index, const GLTFNodeIndex p_bone_index);
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ImporterMeshInstance3D *_generate_mesh_instance(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index);
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Camera3D *_generate_camera(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index);
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Light3D *_generate_light(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index);
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Node3D *_generate_spatial(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index);
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void _assign_node_names(Ref<GLTFState> p_state);
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template <typename T>
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T _interpolate_track(const Vector<double> &p_times, const Vector<T> &p_values,
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const float p_time,
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const GLTFAnimation::Interpolation p_interp);
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Error _encode_accessors(Ref<GLTFState> p_state);
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Error _encode_buffer_views(Ref<GLTFState> p_state);
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Error _serialize_materials(Ref<GLTFState> p_state);
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Error _serialize_meshes(Ref<GLTFState> p_state);
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Error _serialize_nodes(Ref<GLTFState> p_state);
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Error _serialize_scenes(Ref<GLTFState> p_state);
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String interpolation_to_string(const GLTFAnimation::Interpolation p_interp);
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Error _encode_buffer_bins(Ref<GLTFState> p_state, const String &p_path);
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Error _encode_buffer_glb(Ref<GLTFState> p_state, const String &p_path);
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PackedByteArray _serialize_glb_buffer(Ref<GLTFState> p_state, Error *r_err);
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Dictionary _serialize_texture_transform_uv1(const Ref<BaseMaterial3D> &p_material);
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Dictionary _serialize_texture_transform_uv2(const Ref<BaseMaterial3D> &p_material);
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Error _serialize_asset_header(Ref<GLTFState> p_state);
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Error _serialize_file(Ref<GLTFState> p_state, const String p_path);
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Error _serialize_gltf_extensions(Ref<GLTFState> p_state) const;
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public:
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// https://www.itu.int/rec/R-REC-BT.601
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// https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.601-7-201103-I!!PDF-E.pdf
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static constexpr float R_BRIGHTNESS_COEFF = 0.299f;
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static constexpr float G_BRIGHTNESS_COEFF = 0.587f;
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static constexpr float B_BRIGHTNESS_COEFF = 0.114f;
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private:
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// https://github.com/microsoft/glTF-SDK/blob/master/GLTFSDK/Source/PBRUtils.cpp#L9
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// https://bghgary.github.io/glTF/convert-between-workflows-bjs/js/babylon.pbrUtilities.js
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static float solve_metallic(float p_dielectric_specular, float p_diffuse,
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float p_specular,
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float p_one_minus_specular_strength);
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static float get_perceived_brightness(const Color p_color);
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static float get_max_component(const Color &p_color);
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public:
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virtual Error append_from_file(const String &p_path, Ref<GLTFState> p_state, uint32_t p_flags = 0, const String &p_base_path = String());
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virtual Error append_from_buffer(const PackedByteArray &p_bytes, const String &p_base_path, Ref<GLTFState> p_state, uint32_t p_flags = 0);
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virtual Error append_from_scene(Node *p_node, Ref<GLTFState> p_state, uint32_t p_flags = 0);
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virtual Node *generate_scene(Ref<GLTFState> p_state, float p_bake_fps = 30.0f, bool p_trimming = false, bool p_remove_immutable_tracks = true);
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virtual PackedByteArray generate_buffer(Ref<GLTFState> p_state);
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virtual Error write_to_filesystem(Ref<GLTFState> p_state, const String &p_path);
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public:
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Error _parse_gltf_state(Ref<GLTFState> p_state, const String &p_search_path);
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Error _parse_asset_header(Ref<GLTFState> p_state);
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Error _parse_gltf_extensions(Ref<GLTFState> p_state);
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void _process_mesh_instances(Ref<GLTFState> p_state, Node *p_scene_root);
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Node *_generate_scene_node_tree(Ref<GLTFState> p_state);
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void _generate_scene_node(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index, Node *p_scene_parent, Node *p_scene_root);
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void _generate_skeleton_bone_node(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index, Node3D *p_current_node, Node *p_scene_parent, Node *p_scene_root);
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void _attach_node_to_skeleton(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index, Node3D *p_current_node, Skeleton3D *p_godot_skeleton, Node *p_scene_root, GLTFNodeIndex p_bone_node_index = -1);
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void _generate_scene_node_compat_4pt4(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index, Node *p_scene_parent, Node *p_scene_root);
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void _generate_skeleton_bone_node_compat_4pt4(Ref<GLTFState> p_state, const GLTFNodeIndex p_node_index, Node *p_scene_parent, Node *p_scene_root);
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void _import_animation(Ref<GLTFState> p_state, AnimationPlayer *p_animation_player,
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const GLTFAnimationIndex p_index, const bool p_trimming, const bool p_remove_immutable_tracks);
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void _convert_mesh_instances(Ref<GLTFState> p_state);
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GLTFCameraIndex _convert_camera(Ref<GLTFState> p_state, Camera3D *p_camera);
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void _convert_light_to_gltf(Light3D *p_light, Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node);
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GLTFLightIndex _convert_light(Ref<GLTFState> p_state, Light3D *p_light);
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void _convert_spatial(Ref<GLTFState> p_state, Node3D *p_spatial, Ref<GLTFNode> p_node);
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void _convert_scene_node(Ref<GLTFState> p_state, Node *p_current,
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const GLTFNodeIndex p_gltf_current,
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const GLTFNodeIndex p_gltf_root);
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void _convert_csg_shape_to_gltf(CSGShape3D *p_current, GLTFNodeIndex p_gltf_parent, Ref<GLTFNode> p_gltf_node, Ref<GLTFState> p_state);
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void _check_visibility(Node *p_node, bool &r_retflag);
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void _convert_camera_to_gltf(Camera3D *p_camera, Ref<GLTFState> p_state,
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Ref<GLTFNode> p_gltf_node);
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void _convert_grid_map_to_gltf(
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GridMap *p_grid_map,
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GLTFNodeIndex p_parent_node_index,
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GLTFNodeIndex p_root_node_index,
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Ref<GLTFNode> p_gltf_node, Ref<GLTFState> p_state);
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void _convert_multi_mesh_instance_to_gltf(
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MultiMeshInstance3D *p_multi_mesh_instance,
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GLTFNodeIndex p_parent_node_index,
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GLTFNodeIndex p_root_node_index,
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Ref<GLTFNode> p_gltf_node, Ref<GLTFState> p_state);
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void _convert_skeleton_to_gltf(
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Skeleton3D *p_scene_parent, Ref<GLTFState> p_state,
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GLTFNodeIndex p_parent_node_index,
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GLTFNodeIndex p_root_node_index,
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Ref<GLTFNode> p_gltf_node);
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void _convert_bone_attachment_to_gltf(BoneAttachment3D *p_bone_attachment,
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Ref<GLTFState> p_state,
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GLTFNodeIndex p_parent_node_index,
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GLTFNodeIndex p_root_node_index,
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Ref<GLTFNode> p_gltf_node);
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void _convert_mesh_instance_to_gltf(MeshInstance3D *p_mesh_instance,
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Ref<GLTFState> p_state,
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Ref<GLTFNode> p_gltf_node);
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GLTFMeshIndex _convert_mesh_to_gltf(Ref<GLTFState> p_state,
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MeshInstance3D *p_mesh_instance);
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GLTFNodeIndex _node_and_or_bone_to_gltf_node_index(Ref<GLTFState> p_state, const Vector<StringName> &p_node_subpath, const Node *p_godot_node);
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bool _convert_animation_node_track(Ref<GLTFState> p_state,
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GLTFAnimation::NodeTrack &p_gltf_node_track,
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const Ref<Animation> &p_godot_animation,
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int32_t p_godot_anim_track_index,
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Vector<double> &p_times);
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void _convert_animation(Ref<GLTFState> p_state, AnimationPlayer *p_animation_player, const String &p_animation_track_name);
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Error _serialize(Ref<GLTFState> p_state);
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Error _parse(Ref<GLTFState> p_state, const String &p_path, Ref<FileAccess> p_file);
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};
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VARIANT_ENUM_CAST(GLTFDocument::RootNodeMode);
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VARIANT_ENUM_CAST(GLTFDocument::TextureMapMode);
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VARIANT_ENUM_CAST(GLTFDocument::VisibilityMode);
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VARIANT_BITFIELD_CAST(GLTFDocument::ImportFlags);
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