345 lines
9.7 KiB
C++
345 lines
9.7 KiB
C++
/*************************************************************************/
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/* editor_scene_importer_gltf.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) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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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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#ifndef EDITOR_SCENE_IMPORTER_GLTF_H
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#define EDITOR_SCENE_IMPORTER_GLTF_H
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#include "editor/import/resource_importer_scene.h"
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#include "scene/3d/skeleton.h"
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#include "scene/3d/spatial.h"
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class AnimationPlayer;
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class EditorSceneImporterGLTF : public EditorSceneImporter {
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GDCLASS(EditorSceneImporterGLTF, EditorSceneImporter);
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enum {
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ARRAY_BUFFER = 34962,
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ELEMENT_ARRAY_BUFFER = 34963,
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TYPE_BYTE = 5120,
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TYPE_UNSIGNED_BYTE = 5121,
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TYPE_SHORT = 5122,
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TYPE_UNSIGNED_SHORT = 5123,
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TYPE_UNSIGNED_INT = 5125,
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TYPE_FLOAT = 5126,
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COMPONENT_TYPE_BYTE = 5120,
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COMPONENT_TYPE_UNSIGNED_BYTE = 5121,
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COMPONENT_TYPE_SHORT = 5122,
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COMPONENT_TYPE_UNSIGNED_SHORT = 5123,
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COMPONENT_TYPE_INT = 5125,
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COMPONENT_TYPE_FLOAT = 5126,
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};
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String _get_component_type_name(uint32_t p_component);
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int _get_component_type_size(int component_type);
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enum GLTFType {
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TYPE_SCALAR,
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TYPE_VEC2,
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TYPE_VEC3,
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TYPE_VEC4,
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TYPE_MAT2,
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TYPE_MAT3,
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TYPE_MAT4,
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};
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String _get_type_name(GLTFType p_component);
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struct GLTFNode {
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//matrices need to be transformed to this
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int parent;
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Transform xform;
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String name;
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//Node *godot_node;
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//int godot_bone_index;
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int mesh;
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int camera;
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int skin;
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//int skeleton_skin;
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//int child_of_skeleton; // put as children of skeleton
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//Vector<int> skeleton_children; //skeleton put as children of this
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struct Joint {
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int skin;
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int bone;
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int godot_bone_index;
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Joint() {
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skin = -1;
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bone = -1;
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godot_bone_index = -1;
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}
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};
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Vector<Joint> joints;
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//keep them for animation
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Vector3 translation;
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Quat rotation;
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Vector3 scale;
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Vector<int> children;
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Vector<Node *> godot_nodes;
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GLTFNode() :
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parent(-1),
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mesh(-1),
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camera(-1),
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skin(-1),
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//skeleton_skin(-1),
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//child_of_skeleton(-1),
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scale(Vector3(1, 1, 1)) {
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}
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};
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struct GLTFBufferView {
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int buffer;
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int byte_offset;
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int byte_length;
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int byte_stride;
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bool indices;
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//matrices need to be transformed to this
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GLTFBufferView() :
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buffer(0),
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byte_offset(0),
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byte_length(0),
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byte_stride(0),
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indices(false) {
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}
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};
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struct GLTFAccessor {
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int buffer_view;
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int byte_offset;
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int component_type;
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bool normalized;
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int count;
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GLTFType type;
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float min;
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float max;
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int sparse_count;
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int sparse_indices_buffer_view;
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int sparse_indices_byte_offset;
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int sparse_indices_component_type;
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int sparse_values_buffer_view;
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int sparse_values_byte_offset;
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//matrices need to be transformed to this
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GLTFAccessor() {
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buffer_view = 0;
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byte_offset = 0;
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component_type = 0;
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normalized = false;
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count = 0;
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min = 0;
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max = 0;
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sparse_count = 0;
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sparse_indices_byte_offset = 0;
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sparse_values_byte_offset = 0;
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}
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};
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struct GLTFTexture {
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int src_image;
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};
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struct GLTFSkin {
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String name;
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struct Bone {
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Transform inverse_bind;
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int node;
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};
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int skeleton;
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Vector<Bone> bones;
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//matrices need to be transformed to this
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GLTFSkin() {
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skeleton = -1;
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}
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};
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struct GLTFMesh {
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Ref<ArrayMesh> mesh;
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Vector<float> blend_weights;
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};
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struct GLTFCamera {
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bool perspective;
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float fov_size;
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float zfar;
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float znear;
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GLTFCamera() {
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perspective = true;
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fov_size = 65;
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zfar = 500;
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znear = 0.1;
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}
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};
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struct GLTFAnimation {
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enum Interpolation {
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INTERP_LINEAR,
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INTERP_STEP,
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INTERP_CATMULLROMSPLINE,
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INTERP_CUBIC_SPLINE
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};
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template <class T>
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struct Channel {
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Interpolation interpolation;
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Vector<float> times;
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Vector<T> values;
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};
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struct Track {
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Channel<Vector3> translation_track;
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Channel<Quat> rotation_track;
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Channel<Vector3> scale_track;
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Vector<Channel<float> > weight_tracks;
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};
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String name;
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Map<int, Track> tracks;
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};
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struct GLTFState {
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Dictionary json;
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int major_version;
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int minor_version;
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Vector<uint8_t> glb_data;
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Vector<GLTFNode *> nodes;
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Vector<Vector<uint8_t> > buffers;
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Vector<GLTFBufferView> buffer_views;
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Vector<GLTFAccessor> accessors;
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Vector<GLTFMesh> meshes; //meshes are loaded directly, no reason not to.
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Vector<Ref<Material> > materials;
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String scene_name;
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Vector<int> root_nodes;
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Vector<GLTFTexture> textures;
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Vector<Ref<Texture> > images;
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Vector<GLTFSkin> skins;
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Vector<GLTFCamera> cameras;
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Set<String> unique_names;
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Vector<GLTFAnimation> animations;
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Map<int, Vector<int> > skeleton_nodes;
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//Map<int, Vector<int> > skin_users; //cache skin users
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~GLTFState() {
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for (int i = 0; i < nodes.size(); i++) {
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memdelete(nodes[i]);
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}
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}
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};
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String _gen_unique_name(GLTFState &state, const String &p_name);
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Ref<Texture> _get_texture(GLTFState &state, int p_texture);
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Error _parse_json(const String &p_path, GLTFState &state);
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Error _parse_glb(const String &p_path, GLTFState &state);
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Error _parse_scenes(GLTFState &state);
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Error _parse_nodes(GLTFState &state);
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Error _parse_buffers(GLTFState &state, const String &p_base_path);
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Error _parse_buffer_views(GLTFState &state);
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GLTFType _get_type_from_str(const String &p_string);
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Error _parse_accessors(GLTFState &state);
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Error _decode_buffer_view(GLTFState &state, int p_buffer_view, double *dst, int skip_every, int skip_bytes, int element_size, int count, GLTFType type, int component_count, int component_type, int component_size, bool normalized, int byte_offset, bool for_vertex);
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Vector<double> _decode_accessor(GLTFState &state, int p_accessor, bool p_for_vertex);
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PoolVector<float> _decode_accessor_as_floats(GLTFState &state, int p_accessor, bool p_for_vertex);
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PoolVector<int> _decode_accessor_as_ints(GLTFState &state, int p_accessor, bool p_for_vertex);
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PoolVector<Vector2> _decode_accessor_as_vec2(GLTFState &state, int p_accessor, bool p_for_vertex);
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PoolVector<Vector3> _decode_accessor_as_vec3(GLTFState &state, int p_accessor, bool p_for_vertex);
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PoolVector<Color> _decode_accessor_as_color(GLTFState &state, int p_accessor, bool p_for_vertex);
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Vector<Quat> _decode_accessor_as_quat(GLTFState &state, int p_accessor, bool p_for_vertex);
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Vector<Transform2D> _decode_accessor_as_xform2d(GLTFState &state, int p_accessor, bool p_for_vertex);
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Vector<Basis> _decode_accessor_as_basis(GLTFState &state, int p_accessor, bool p_for_vertex);
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Vector<Transform> _decode_accessor_as_xform(GLTFState &state, int p_accessor, bool p_for_vertex);
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void _generate_bone(GLTFState &state, int p_node, Vector<Skeleton *> &skeletons, Node *p_parent_node);
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void _generate_node(GLTFState &state, int p_node, Node *p_parent, Node *p_owner, Vector<Skeleton *> &skeletons);
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void _import_animation(GLTFState &state, AnimationPlayer *ap, int index, int bake_fps, Vector<Skeleton *> skeletons);
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Spatial *_generate_scene(GLTFState &state, int p_bake_fps);
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Error _parse_meshes(GLTFState &state);
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Error _parse_images(GLTFState &state, const String &p_base_path);
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Error _parse_textures(GLTFState &state);
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Error _parse_materials(GLTFState &state);
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Error _parse_skins(GLTFState &state);
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Error _parse_cameras(GLTFState &state);
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Error _parse_animations(GLTFState &state);
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void _assign_scene_names(GLTFState &state);
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template <class T>
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T _interpolate_track(const Vector<float> &p_times, const Vector<T> &p_values, float p_time, GLTFAnimation::Interpolation p_interp);
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public:
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virtual uint32_t get_import_flags() const;
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virtual void get_extensions(List<String> *r_extensions) const;
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virtual Node *import_scene(const String &p_path, uint32_t p_flags, int p_bake_fps, List<String> *r_missing_deps = NULL, Error *r_err = NULL);
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virtual Ref<Animation> import_animation(const String &p_path, uint32_t p_flags, int p_bake_fps);
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EditorSceneImporterGLTF();
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};
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#endif // EDITOR_SCENE_IMPORTER_GLTF_H
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