From 4abaa346a1593d0721bc1aa0989f1007e16d3301 Mon Sep 17 00:00:00 2001
From: zhangwei <1504152376@qq.com>
Date: 星期三, 21 八月 2024 17:20:38 +0800
Subject: [PATCH] -
---
src/components/loaders/gltf-clone.js | 44 +
package-lock.json | 6
package.json | 1
src/components/loaders/gltf-loader.js | 1630 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 1,681 insertions(+), 0 deletions(-)
diff --git a/package-lock.json b/package-lock.json
index 8ebc342..cd4df3b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
"@rollup/plugin-commonjs": "^25.0.0",
"clipboard": "^2.0.11",
"dayjs": "^1.11.8",
+ "threejs-miniprogram": "^0.0.8",
"vue": "3.4.29",
"vue-i18n": "9.11.0",
"vuex": "^4.1.0"
@@ -14364,6 +14365,11 @@
"integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
"dev": true
},
+ "node_modules/threejs-miniprogram": {
+ "version": "0.0.8",
+ "resolved": "https://registry.npmmirror.com/threejs-miniprogram/-/threejs-miniprogram-0.0.8.tgz",
+ "integrity": "sha512-S5IgBMuX57kQsbeSv/5YDc87s+WKvPLYT+Go5FUbSdcjf6/Lq/LoY1uoVxfa00fjLHN+cMuumZ1Op/JmFKUmbw=="
+ },
"node_modules/throat": {
"version": "6.0.2",
"resolved": "https://registry.npmmirror.com/throat/-/throat-6.0.2.tgz",
diff --git a/package.json b/package.json
index 7cf7e9d..2f32d82 100644
--- a/package.json
+++ b/package.json
@@ -58,6 +58,7 @@
"@rollup/plugin-commonjs": "^25.0.0",
"clipboard": "^2.0.11",
"dayjs": "^1.11.8",
+ "threejs-miniprogram": "^0.0.8",
"vue": "3.4.29",
"vue-i18n": "9.11.0",
"vuex": "^4.1.0"
diff --git a/src/components/loaders/gltf-clone.js b/src/components/loaders/gltf-clone.js
new file mode 100644
index 0000000..f496465
--- /dev/null
+++ b/src/components/loaders/gltf-clone.js
@@ -0,0 +1,44 @@
+export default function(gltf, THREE) {
+ const clone = {
+ animations: gltf.animations,
+ scene: gltf.scene.clone(true)
+ }
+
+ const skinnedMeshes = {}
+
+ gltf.scene.traverse(node => {
+ if (node.isSkinnedMesh) {
+ skinnedMeshes[node.name] = node
+ }
+ })
+
+ const cloneBones = {}
+ const cloneSkinnedMeshes = {}
+
+ clone.scene.traverse(node => {
+ if (node.isBone) {
+ cloneBones[node.name] = node
+ }
+
+ if (node.isSkinnedMesh) {
+ cloneSkinnedMeshes[node.name] = node
+ }
+ })
+
+ for (let name in skinnedMeshes) {
+ const skinnedMesh = skinnedMeshes[name]
+ const skeleton = skinnedMesh.skeleton
+ const cloneSkinnedMesh = cloneSkinnedMeshes[name]
+
+ const orderedCloneBones = []
+
+ for (let i = 0; i < skeleton.bones.length; ++i) {
+ const cloneBone = cloneBones[skeleton.bones[i].name]
+ orderedCloneBones.push(cloneBone)
+ }
+
+ cloneSkinnedMesh.bind(new THREE.Skeleton(orderedCloneBones, skeleton.boneInverses), cloneSkinnedMesh.matrixWorld)
+ }
+
+ return clone
+}
diff --git a/src/components/loaders/gltf-loader.js b/src/components/loaders/gltf-loader.js
new file mode 100644
index 0000000..aff17d8
--- /dev/null
+++ b/src/components/loaders/gltf-loader.js
@@ -0,0 +1,1630 @@
+export function registerGLTFLoader(THREE) {
+ THREE.GLTFLoader = (function() {
+ function GLTFLoader() {
+ this.manager = THREE.DefaultLoadingManager;
+ this.dracoLoader = null;
+ this.ddsLoader = null
+ }
+ GLTFLoader.prototype = {
+ constructor: GLTFLoader,
+ crossOrigin: 'anonymous',
+ load: function(url, onLoad) {
+ var scope = this;
+ var resourcePath;
+ if (this.resourcePath !== undefined) {
+ resourcePath = this.resourcePath
+ } else if (this.path !== undefined) {
+ resourcePath = this.path
+ } else {
+ resourcePath = THREE.LoaderUtils.extractUrlBase(url)
+ }
+ scope.manager.itemStart(url);
+ var _onError = function(e) {
+ console.error(e);
+ scope.manager.itemError(url);
+ scope.manager.itemEnd(url)
+ };
+ var loader = new THREE.FileLoader(scope.manager);
+ loader.setPath(this.path);
+ loader.setResponseType('arraybuffer');
+ loader.load(url,
+ function(data) {
+ try {
+ scope.parse(data, resourcePath,
+ function(gltf) {
+ onLoad(gltf);
+ scope.manager.itemEnd(url)
+ },
+ _onError)
+ } catch(e) {
+ _onError(e)
+ }
+ },
+ null, _onError)
+ },
+ parse: function(data, path, onLoad, onError) {
+ var content;
+ var extensions = {};
+ if (typeof data === 'string') {
+ content = data
+ } else {
+ var magic = THREE.LoaderUtils.decodeText(new Uint8Array(data, 0, 4));
+ if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
+ try {
+ extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data)
+ } catch(error) {
+ if (onError) onError(error);
+ return
+ }
+ content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content
+ } else {
+ content = THREE.LoaderUtils.decodeText(new Uint8Array(data))
+ }
+ }
+ var json = JSON.parse(content);
+ if (json.asset === undefined || json.asset.version[0] < 2) {
+ if (onError) onError(new Error('THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.'));
+ return
+ }
+ if (json.extensionsUsed) {
+ for (var i = 0; i < json.extensionsUsed.length; ++i) {
+ var extensionName = json.extensionsUsed[i];
+ var extensionsRequired = json.extensionsRequired || [];
+ switch (extensionName) {
+ case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
+ extensions[extensionName] = new GLTFLightsExtension(json);
+ break;
+ case EXTENSIONS.KHR_MATERIALS_UNLIT:
+ extensions[extensionName] = new GLTFMaterialsUnlitExtension();
+ break;
+ case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
+ extensions[extensionName] = new GLTFMaterialsPbrSpecularGlossinessExtension();
+ break;
+ case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
+ extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
+ break;
+ case EXTENSIONS.MSFT_TEXTURE_DDS:
+ extensions[EXTENSIONS.MSFT_TEXTURE_DDS] = new GLTFTextureDDSExtension(this.ddsLoader);
+ break;
+ case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
+ extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM] = new GLTFTextureTransformExtension();
+ break;
+ default:
+ if (extensionsRequired.indexOf(extensionName) >= 0) {
+ console.warn('THREE.GLTFLoader: Unknown extension "' + extensionName + '".')
+ }
+ }
+ }
+ }
+ var parser = new GLTFParser(json, extensions, {
+ path: path || this.resourcePath || '',
+ crossOrigin: this.crossOrigin,
+ manager: this.manager
+ });
+ parser.parse(onLoad, onError)
+ }
+ };
+ function GLTFRegistry() {
+ var objects = {};
+ return {
+ get: function(key) {
+ return objects[key]
+ },
+ add: function(key, object) {
+ objects[key] = object
+ },
+ remove: function(key) {
+ delete objects[key]
+ },
+ removeAll: function() {
+ objects = {}
+ }
+ }
+ }
+ var EXTENSIONS = {
+ KHR_BINARY_GLTF: 'KHR_binary_glTF',
+ KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
+ KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
+ KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
+ KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
+ KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
+ MSFT_TEXTURE_DDS: 'MSFT_texture_dds'
+ };
+ function GLTFTextureDDSExtension(ddsLoader) {
+ if (!ddsLoader) {
+ throw new Error('THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader');
+ }
+ this.name = EXTENSIONS.MSFT_TEXTURE_DDS;
+ this.ddsLoader = ddsLoader
+ }
+ function GLTFLightsExtension(json) {
+ this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
+ var extension = (json.extensions && json.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL]) || {};
+ this.lightDefs = extension.lights || []
+ }
+ GLTFLightsExtension.prototype.loadLight = function(lightIndex) {
+ var lightDef = this.lightDefs[lightIndex];
+ var lightNode;
+ var color = new THREE.Color(0xffffff);
+ if (lightDef.color !== undefined) color.fromArray(lightDef.color);
+ var range = lightDef.range !== undefined ? lightDef.range: 0;
+ switch (lightDef.type) {
+ case 'directional':
+ lightNode = new THREE.DirectionalLight(color);
+ lightNode.target.position.set(0, 0, -1);
+ lightNode.add(lightNode.target);
+ break;
+ case 'point':
+ lightNode = new THREE.PointLight(color);
+ lightNode.distance = range;
+ break;
+ case 'spot':
+ lightNode = new THREE.SpotLight(color);
+ lightNode.distance = range;
+ lightDef.spot = lightDef.spot || {};
+ lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle: 0;
+ lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle: Math.PI / 4.0;
+ lightNode.angle = lightDef.spot.outerConeAngle;
+ lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
+ lightNode.target.position.set(0, 0, -1);
+ lightNode.add(lightNode.target);
+ break;
+ default:
+ throw new Error('THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".');
+ }
+ lightNode.position.set(0, 0, 0);
+ lightNode.decay = 2;
+ if (lightDef.intensity !== undefined) lightNode.intensity = lightDef.intensity;
+ lightNode.name = lightDef.name || ('light_' + lightIndex);
+ return Promise.resolve(lightNode)
+ };
+ function GLTFMaterialsUnlitExtension() {
+ this.name = EXTENSIONS.KHR_MATERIALS_UNLIT
+ }
+ GLTFMaterialsUnlitExtension.prototype.getMaterialType = function() {
+ return THREE.MeshBasicMaterial
+ };
+ GLTFMaterialsUnlitExtension.prototype.extendParams = function(materialParams, materialDef, parser) {
+ var pending = [];
+ materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
+ materialParams.opacity = 1.0;
+ var metallicRoughness = materialDef.pbrMetallicRoughness;
+ if (metallicRoughness) {
+ if (Array.isArray(metallicRoughness.baseColorFactor)) {
+ var array = metallicRoughness.baseColorFactor;
+ materialParams.color.fromArray(array);
+ materialParams.opacity = array[3]
+ }
+ if (metallicRoughness.baseColorTexture !== undefined) {
+ pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture))
+ }
+ }
+ return Promise.all(pending)
+ };
+ var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
+ var BINARY_EXTENSION_HEADER_LENGTH = 12;
+ var BINARY_EXTENSION_CHUNK_TYPES = {
+ JSON: 0x4E4F534A,
+ BIN: 0x004E4942
+ };
+ function GLTFBinaryExtension(data) {
+ this.name = EXTENSIONS.KHR_BINARY_GLTF;
+ this.content = null;
+ this.body = null;
+ var headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
+ this.header = {
+ magic: THREE.LoaderUtils.decodeText(new Uint8Array(data.slice(0, 4))),
+ version: headerView.getUint32(4, true),
+ length: headerView.getUint32(8, true)
+ };
+ if (this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC) {
+ throw new Error('THREE.GLTFLoader: Unsupported glTF-Binary header.');
+ } else if (this.header.version < 2.0) {
+ throw new Error('THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.');
+ }
+ var chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
+ var chunkIndex = 0;
+ while (chunkIndex < chunkView.byteLength) {
+ var chunkLength = chunkView.getUint32(chunkIndex, true);
+ chunkIndex += 4;
+ var chunkType = chunkView.getUint32(chunkIndex, true);
+ chunkIndex += 4;
+ if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
+ var contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
+ this.content = THREE.LoaderUtils.decodeText(contentArray)
+ } else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
+ var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
+ this.body = data.slice(byteOffset, byteOffset + chunkLength)
+ }
+ chunkIndex += chunkLength
+ }
+ if (this.content === null) {
+ throw new Error('THREE.GLTFLoader: JSON content not found.');
+ }
+ }
+ function GLTFDracoMeshCompressionExtension(json, dracoLoader) {
+ if (!dracoLoader) {
+ throw new Error('THREE.GLTFLoader: No DRACOLoader instance provided.');
+ }
+ this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
+ this.json = json;
+ this.dracoLoader = dracoLoader
+ }
+ GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function(primitive, parser) {
+ var json = this.json;
+ var dracoLoader = this.dracoLoader;
+ var bufferViewIndex = primitive.extensions[this.name].bufferView;
+ var gltfAttributeMap = primitive.extensions[this.name].attributes;
+ var threeAttributeMap = {};
+ var attributeNormalizedMap = {};
+ var attributeTypeMap = {};
+ for (var attributeName in gltfAttributeMap) {
+ var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
+ threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName]
+ }
+ for (attributeName in primitive.attributes) {
+ var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
+ if (gltfAttributeMap[attributeName] !== undefined) {
+ var accessorDef = json.accessors[primitive.attributes[attributeName]];
+ var componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
+ attributeTypeMap[threeAttributeName] = componentType;
+ attributeNormalizedMap[threeAttributeName] = accessorDef.normalized === true
+ }
+ }
+ return parser.getDependency('bufferView', bufferViewIndex).then(function(bufferView) {
+ return new Promise(function(resolve) {
+ dracoLoader.decodeDracoFile(bufferView,
+ function(geometry) {
+ for (var attributeName in geometry.attributes) {
+ var attribute = geometry.attributes[attributeName];
+ var normalized = attributeNormalizedMap[attributeName];
+ if (normalized !== undefined) attribute.normalized = normalized
+ }
+ resolve(geometry)
+ },
+ threeAttributeMap, attributeTypeMap)
+ })
+ })
+ };
+ function GLTFTextureTransformExtension() {
+ this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM
+ }
+ GLTFTextureTransformExtension.prototype.extendTexture = function(texture, transform) {
+ texture = texture.clone();
+ if (transform.offset !== undefined) {
+ texture.offset.fromArray(transform.offset)
+ }
+ if (transform.rotation !== undefined) {
+ texture.rotation = transform.rotation
+ }
+ if (transform.scale !== undefined) {
+ texture.repeat.fromArray(transform.scale)
+ }
+ if (transform.texCoord !== undefined) {
+ console.warn('THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.')
+ }
+ texture.needsUpdate = true;
+ return texture
+ };
+ function GLTFMaterialsPbrSpecularGlossinessExtension() {
+ return {
+ name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
+ specularGlossinessParams: ['color', 'map', 'lightMap', 'lightMapIntensity', 'aoMap', 'aoMapIntensity', 'emissive', 'emissiveIntensity', 'emissiveMap', 'bumpMap', 'bumpScale', 'normalMap', 'displacementMap', 'displacementScale', 'displacementBias', 'specularMap', 'specular', 'glossinessMap', 'glossiness', 'alphaMap', 'envMap', 'envMapIntensity', 'refractionRatio', ],
+ getMaterialType: function() {
+ return THREE.ShaderMaterial
+ },
+ extendParams: function(materialParams, materialDef, parser) {
+ var pbrSpecularGlossiness = materialDef.extensions[this.name];
+ var shader = THREE.ShaderLib['standard'];
+ var uniforms = THREE.UniformsUtils.clone(shader.uniforms);
+ var specularMapParsFragmentChunk = ['#ifdef USE_SPECULARMAP', ' uniform sampler2D specularMap;', '#endif'].join('\n');
+ var glossinessMapParsFragmentChunk = ['#ifdef USE_GLOSSINESSMAP', ' uniform sampler2D glossinessMap;', '#endif'].join('\n');
+ var specularMapFragmentChunk = ['vec3 specularFactor = specular;', '#ifdef USE_SPECULARMAP', ' vec4 texelSpecular = texture2D( specularMap, vUv );', ' texelSpecular = sRGBToLinear( texelSpecular );', ' // reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture', ' specularFactor *= texelSpecular.rgb;', '#endif'].join('\n');
+ var glossinessMapFragmentChunk = ['float glossinessFactor = glossiness;', '#ifdef USE_GLOSSINESSMAP', ' vec4 texelGlossiness = texture2D( glossinessMap, vUv );', ' // reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture', ' glossinessFactor *= texelGlossiness.a;', '#endif'].join('\n');
+ var lightPhysicalFragmentChunk = ['PhysicalMaterial material;', 'material.diffuseColor = diffuseColor.rgb;', 'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );', 'material.specularColor = specularFactor.rgb;', ].join('\n');
+ var fragmentShader = shader.fragmentShader.replace('uniform float roughness;', 'uniform vec3 specular;').replace('uniform float metalness;', 'uniform float glossiness;').replace('#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk).replace('#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk).replace('#include <roughnessmap_fragment>', specularMapFragmentChunk).replace('#include <metalnessmap_fragment>', glossinessMapFragmentChunk).replace('#include <lights_physical_fragment>', lightPhysicalFragmentChunk);
+ delete uniforms.roughness;
+ delete uniforms.metalness;
+ delete uniforms.roughnessMap;
+ delete uniforms.metalnessMap;
+ uniforms.specular = {
+ value: new THREE.Color().setHex(0x111111)
+ };
+ uniforms.glossiness = {
+ value: 0.5
+ };
+ uniforms.specularMap = {
+ value: null
+ };
+ uniforms.glossinessMap = {
+ value: null
+ };
+ materialParams.vertexShader = shader.vertexShader;
+ materialParams.fragmentShader = fragmentShader;
+ materialParams.uniforms = uniforms;
+ materialParams.defines = {
+ 'STANDARD': ''
+ }
+ materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
+ materialParams.opacity = 1.0;
+ var pending = [];
+ if (Array.isArray(pbrSpecularGlossiness.diffuseFactor)) {
+ var array = pbrSpecularGlossiness.diffuseFactor;
+ materialParams.color.fromArray(array);
+ materialParams.opacity = array[3]
+ }
+ if (pbrSpecularGlossiness.diffuseTexture !== undefined) {
+ pending.push(parser.assignTexture(materialParams, 'map', pbrSpecularGlossiness.diffuseTexture))
+ }
+ materialParams.emissive = new THREE.Color(0.0, 0.0, 0.0);
+ materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor: 1.0;
+ materialParams.specular = new THREE.Color(1.0, 1.0, 1.0);
+ if (Array.isArray(pbrSpecularGlossiness.specularFactor)) {
+ materialParams.specular.fromArray(pbrSpecularGlossiness.specularFactor)
+ }
+ if (pbrSpecularGlossiness.specularGlossinessTexture !== undefined) {
+ var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
+ pending.push(parser.assignTexture(materialParams, 'glossinessMap', specGlossMapDef));
+ pending.push(parser.assignTexture(materialParams, 'specularMap', specGlossMapDef))
+ }
+ return Promise.all(pending)
+ },
+ createMaterial: function(params) {
+ var material = new THREE.ShaderMaterial({
+ defines: params.defines,
+ vertexShader: params.vertexShader,
+ fragmentShader: params.fragmentShader,
+ uniforms: params.uniforms,
+ fog: true,
+ lights: true,
+ opacity: params.opacity,
+ transparent: params.transparent
+ });
+ material.isGLTFSpecularGlossinessMaterial = true;
+ material.color = params.color;
+ material.map = params.map === undefined ? null: params.map;
+ material.lightMap = null;
+ material.lightMapIntensity = 1.0;
+ material.aoMap = params.aoMap === undefined ? null: params.aoMap;
+ material.aoMapIntensity = 1.0;
+ material.emissive = params.emissive;
+ material.emissiveIntensity = 1.0;
+ material.emissiveMap = params.emissiveMap === undefined ? null: params.emissiveMap;
+ material.bumpMap = params.bumpMap === undefined ? null: params.bumpMap;
+ material.bumpScale = 1;
+ material.normalMap = params.normalMap === undefined ? null: params.normalMap;
+ if (params.normalScale) material.normalScale = params.normalScale;
+ material.displacementMap = null;
+ material.displacementScale = 1;
+ material.displacementBias = 0;
+ material.specularMap = params.specularMap === undefined ? null: params.specularMap;
+ material.specular = params.specular;
+ material.glossinessMap = params.glossinessMap === undefined ? null: params.glossinessMap;
+ material.glossiness = params.glossiness;
+ material.alphaMap = null;
+ material.envMap = params.envMap === undefined ? null: params.envMap;
+ material.envMapIntensity = 1.0;
+ material.refractionRatio = 0.98;
+ material.extensions.derivatives = true;
+ return material
+ },
+ cloneMaterial: function(source) {
+ var target = source.clone();
+ target.isGLTFSpecularGlossinessMaterial = true;
+ var params = this.specularGlossinessParams;
+ for (var i = 0,
+ il = params.length; i < il; i++) {
+ var value = source[params[i]];
+ target[params[i]] = (value && value.isColor) ? value.clone() : value
+ }
+ return target
+ },
+ refreshUniforms: function(renderer, scene, camera, geometry, material) {
+ if (material.isGLTFSpecularGlossinessMaterial !== true) {
+ return
+ }
+ var uniforms = material.uniforms;
+ var defines = material.defines;
+ uniforms.opacity.value = material.opacity;
+ uniforms.diffuse.value.copy(material.color);
+ uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);
+ uniforms.map.value = material.map;
+ uniforms.specularMap.value = material.specularMap;
+ uniforms.alphaMap.value = material.alphaMap;
+ uniforms.lightMap.value = material.lightMap;
+ uniforms.lightMapIntensity.value = material.lightMapIntensity;
+ uniforms.aoMap.value = material.aoMap;
+ uniforms.aoMapIntensity.value = material.aoMapIntensity;
+ var uvScaleMap;
+ if (material.map) {
+ uvScaleMap = material.map
+ } else if (material.specularMap) {
+ uvScaleMap = material.specularMap
+ } else if (material.displacementMap) {
+ uvScaleMap = material.displacementMap
+ } else if (material.normalMap) {
+ uvScaleMap = material.normalMap
+ } else if (material.bumpMap) {
+ uvScaleMap = material.bumpMap
+ } else if (material.glossinessMap) {
+ uvScaleMap = material.glossinessMap
+ } else if (material.alphaMap) {
+ uvScaleMap = material.alphaMap
+ } else if (material.emissiveMap) {
+ uvScaleMap = material.emissiveMap
+ }
+ if (uvScaleMap !== undefined) {
+ if (uvScaleMap.isWebGLRenderTarget) {
+ uvScaleMap = uvScaleMap.texture
+ }
+ if (uvScaleMap.matrixAutoUpdate === true) {
+ uvScaleMap.updateMatrix()
+ }
+ uniforms.uvTransform.value.copy(uvScaleMap.matrix)
+ }
+ if (material.envMap) {
+ uniforms.envMap.value = material.envMap;
+ uniforms.envMapIntensity.value = material.envMapIntensity;
+ uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? -1 : 1;
+ uniforms.reflectivity.value = material.reflectivity;
+ uniforms.refractionRatio.value = material.refractionRatio;
+ uniforms.maxMipLevel.value = renderer.properties.get(material.envMap).__maxMipLevel
+ }
+ uniforms.specular.value.copy(material.specular);
+ uniforms.glossiness.value = material.glossiness;
+ uniforms.glossinessMap.value = material.glossinessMap;
+ uniforms.emissiveMap.value = material.emissiveMap;
+ uniforms.bumpMap.value = material.bumpMap;
+ uniforms.normalMap.value = material.normalMap;
+ uniforms.displacementMap.value = material.displacementMap;
+ uniforms.displacementScale.value = material.displacementScale;
+ uniforms.displacementBias.value = material.displacementBias;
+ if (uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined) {
+ defines.USE_GLOSSINESSMAP = '';
+ defines.USE_ROUGHNESSMAP = ''
+ }
+ if (uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined) {
+ delete defines.USE_GLOSSINESSMAP;
+ delete defines.USE_ROUGHNESSMAP
+ }
+ }
+ }
+ }
+ function GLTFCubicSplineInterpolant(parameterPositions, sampleValues, sampleSize, resultBuffer) {
+ THREE.Interpolant.call(this, parameterPositions, sampleValues, sampleSize, resultBuffer)
+ }
+ GLTFCubicSplineInterpolant.prototype = Object.create(THREE.Interpolant.prototype);
+ GLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;
+ GLTFCubicSplineInterpolant.prototype.copySampleValue_ = function(index) {
+ var result = this.resultBuffer,
+ values = this.sampleValues,
+ valueSize = this.valueSize,
+ offset = index * valueSize * 3 + valueSize;
+ for (var i = 0; i !== valueSize; i++) {
+ result[i] = values[offset + i]
+ }
+ return result
+ };
+ GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
+ GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
+ GLTFCubicSplineInterpolant.prototype.interpolate_ = function(i1, t0, t, t1) {
+ var result = this.resultBuffer;
+ var values = this.sampleValues;
+ var stride = this.valueSize;
+ var stride2 = stride * 2;
+ var stride3 = stride * 3;
+ var td = t1 - t0;
+ var p = (t - t0) / td;
+ var pp = p * p;
+ var ppp = pp * p;
+ var offset1 = i1 * stride3;
+ var offset0 = offset1 - stride3;
+ var s2 = -2 * ppp + 3 * pp;
+ var s3 = ppp - pp;
+ var s0 = 1 - s2;
+ var s1 = s3 - pp + p;
+ for (var i = 0; i !== stride; i++) {
+ var p0 = values[offset0 + i + stride];
+ var m0 = values[offset0 + i + stride2] * td;
+ var p1 = values[offset1 + i + stride];
+ var m1 = values[offset1 + i] * td;
+ result[i] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1
+ }
+ return result
+ };
+ var WEBGL_CONSTANTS = {
+ FLOAT: 5126,
+ FLOAT_MAT3: 35675,
+ FLOAT_MAT4: 35676,
+ FLOAT_VEC2: 35664,
+ FLOAT_VEC3: 35665,
+ FLOAT_VEC4: 35666,
+ LINEAR: 9729,
+ REPEAT: 10497,
+ SAMPLER_2D: 35678,
+ POINTS: 0,
+ LINES: 1,
+ LINE_LOOP: 2,
+ LINE_STRIP: 3,
+ TRIANGLES: 4,
+ TRIANGLE_STRIP: 5,
+ TRIANGLE_FAN: 6,
+ UNSIGNED_BYTE: 5121,
+ UNSIGNED_SHORT: 5123
+ };
+ var WEBGL_COMPONENT_TYPES = {
+ 5120 : Int8Array,
+ 5121 : Uint8Array,
+ 5122 : Int16Array,
+ 5123 : Uint16Array,
+ 5125 : Uint32Array,
+ 5126 : Float32Array
+ };
+ var WEBGL_FILTERS = {
+ 9728 : THREE.NearestFilter,
+ 9729 : THREE.LinearFilter,
+ 9984 : THREE.NearestMipmapNearestFilter,
+ 9985 : THREE.LinearMipmapNearestFilter,
+ 9986 : THREE.NearestMipmapLinearFilter,
+ 9987 : THREE.LinearMipmapLinearFilter
+ };
+ var WEBGL_WRAPPINGS = {
+ 33071 : THREE.ClampToEdgeWrapping,
+ 33648 : THREE.MirroredRepeatWrapping,
+ 10497 : THREE.RepeatWrapping
+ };
+ var WEBGL_TYPE_SIZES = {
+ 'SCALAR': 1,
+ 'VEC2': 2,
+ 'VEC3': 3,
+ 'VEC4': 4,
+ 'MAT2': 4,
+ 'MAT3': 9,
+ 'MAT4': 16
+ };
+ var ATTRIBUTES = {
+ POSITION: 'position',
+ NORMAL: 'normal',
+ TANGENT: 'tangent',
+ TEXCOORD_0: 'uv',
+ TEXCOORD_1: 'uv2',
+ COLOR_0: 'color',
+ WEIGHTS_0: 'skinWeight',
+ JOINTS_0: 'skinIndex',
+ };
+ var PATH_PROPERTIES = {
+ scale: 'scale',
+ translation: 'position',
+ rotation: 'quaternion',
+ weights: 'morphTargetInfluences'
+ };
+ var INTERPOLATION = {
+ CUBICSPLINE: undefined,
+ LINEAR: THREE.InterpolateLinear,
+ STEP: THREE.InterpolateDiscrete
+ };
+ var ALPHA_MODES = {
+ OPAQUE: 'OPAQUE',
+ MASK: 'MASK',
+ BLEND: 'BLEND'
+ };
+ var MIME_TYPE_FORMATS = {
+ 'image/png': THREE.RGBAFormat,
+ 'image/jpeg': THREE.RGBFormat
+ };
+ function resolveURL(url, path) {
+ if (typeof url !== 'string' || url === '') return '';
+ if (/^https?:\/\//i.test(path) && /^\//.test(url)) {
+ path = path.replace(/(^https?:\/\/[^\/]+).*/i, '$1')
+ }
+ if (/^(https?:)?\/\//i.test(url)) return url;
+ if (/^data:.*,.*$/i.test(url)) return url;
+ if (/^blob:.*$/i.test(url)) return url;
+ return path + url
+ }
+ var defaultMaterial;
+ function createDefaultMaterial() {
+ defaultMaterial = defaultMaterial || new THREE.MeshStandardMaterial({
+ color: 0xFFFFFF,
+ emissive: 0x000000,
+ metalness: 1,
+ roughness: 1,
+ transparent: false,
+ depthTest: true,
+ side: THREE.FrontSide
+ });
+ return defaultMaterial
+ }
+ function addUnknownExtensionsToUserData(knownExtensions, object, objectDef) {
+ for (var name in objectDef.extensions) {
+ if (knownExtensions[name] === undefined) {
+ object.userData.gltfExtensions = object.userData.gltfExtensions || {};
+ object.userData.gltfExtensions[name] = objectDef.extensions[name]
+ }
+ }
+ }
+ function assignExtrasToUserData(object, gltfDef) {
+ if (gltfDef.extras !== undefined) {
+ if (typeof gltfDef.extras === 'object') {
+ Object.assign(object.userData, gltfDef.extras)
+ } else {
+ console.warn('THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras)
+ }
+ }
+ }
+ function addMorphTargets(geometry, targets, parser) {
+ var hasMorphPosition = false;
+ var hasMorphNormal = false;
+ for (var i = 0,
+ il = targets.length; i < il; i++) {
+ var target = targets[i];
+ if (target.POSITION !== undefined) hasMorphPosition = true;
+ if (target.NORMAL !== undefined) hasMorphNormal = true;
+ if (hasMorphPosition && hasMorphNormal) break
+ }
+ if (!hasMorphPosition && !hasMorphNormal) return Promise.resolve(geometry);
+ var pendingPositionAccessors = [];
+ var pendingNormalAccessors = [];
+ for (var i = 0,
+ il = targets.length; i < il; i++) {
+ var target = targets[i];
+ if (hasMorphPosition) {
+ var pendingAccessor = target.POSITION !== undefined ? parser.getDependency('accessor', target.POSITION) : geometry.attributes.position;
+ pendingPositionAccessors.push(pendingAccessor)
+ }
+ if (hasMorphNormal) {
+ var pendingAccessor = target.NORMAL !== undefined ? parser.getDependency('accessor', target.NORMAL) : geometry.attributes.normal;
+ pendingNormalAccessors.push(pendingAccessor)
+ }
+ }
+ return Promise.all([Promise.all(pendingPositionAccessors), Promise.all(pendingNormalAccessors)]).then(function(accessors) {
+ var morphPositions = accessors[0];
+ var morphNormals = accessors[1];
+ for (var i = 0,
+ il = morphPositions.length; i < il; i++) {
+ if (geometry.attributes.position === morphPositions[i]) continue;
+ morphPositions[i] = cloneBufferAttribute(morphPositions[i])
+ }
+ for (var i = 0,
+ il = morphNormals.length; i < il; i++) {
+ if (geometry.attributes.normal === morphNormals[i]) continue;
+ morphNormals[i] = cloneBufferAttribute(morphNormals[i])
+ }
+ for (var i = 0,
+ il = targets.length; i < il; i++) {
+ var target = targets[i];
+ var attributeName = 'morphTarget' + i;
+ if (hasMorphPosition) {
+ if (target.POSITION !== undefined) {
+ var positionAttribute = morphPositions[i];
+ positionAttribute.name = attributeName;
+ var position = geometry.attributes.position;
+ for (var j = 0,
+ jl = positionAttribute.count; j < jl; j++) {
+ positionAttribute.setXYZ(j, positionAttribute.getX(j) + position.getX(j), positionAttribute.getY(j) + position.getY(j), positionAttribute.getZ(j) + position.getZ(j))
+ }
+ }
+ }
+ if (hasMorphNormal) {
+ if (target.NORMAL !== undefined) {
+ var normalAttribute = morphNormals[i];
+ normalAttribute.name = attributeName;
+ var normal = geometry.attributes.normal;
+ for (var j = 0,
+ jl = normalAttribute.count; j < jl; j++) {
+ normalAttribute.setXYZ(j, normalAttribute.getX(j) + normal.getX(j), normalAttribute.getY(j) + normal.getY(j), normalAttribute.getZ(j) + normal.getZ(j))
+ }
+ }
+ }
+ }
+ if (hasMorphPosition) geometry.morphAttributes.position = morphPositions;
+ if (hasMorphNormal) geometry.morphAttributes.normal = morphNormals;
+ return geometry
+ })
+ }
+ function updateMorphTargets(mesh, meshDef) {
+ mesh.updateMorphTargets();
+ if (meshDef.weights !== undefined) {
+ for (var i = 0,
+ il = meshDef.weights.length; i < il; i++) {
+ mesh.morphTargetInfluences[i] = meshDef.weights[i]
+ }
+ }
+ if (meshDef.extras && Array.isArray(meshDef.extras.targetNames)) {
+ var targetNames = meshDef.extras.targetNames;
+ if (mesh.morphTargetInfluences.length === targetNames.length) {
+ mesh.morphTargetDictionary = {};
+ for (var i = 0,
+ il = targetNames.length; i < il; i++) {
+ mesh.morphTargetDictionary[targetNames[i]] = i
+ }
+ } else {
+ console.warn('THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.')
+ }
+ }
+ }
+ function createPrimitiveKey(primitiveDef) {
+ var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION];
+ var geometryKey;
+ if (dracoExtension) {
+ geometryKey = 'draco:' + dracoExtension.bufferView + ':' + dracoExtension.indices + ':' + createAttributesKey(dracoExtension.attributes)
+ } else {
+ geometryKey = primitiveDef.indices + ':' + createAttributesKey(primitiveDef.attributes) + ':' + primitiveDef.mode
+ }
+ return geometryKey
+ }
+ function createAttributesKey(attributes) {
+ var attributesKey = '';
+ var keys = Object.keys(attributes).sort();
+ for (var i = 0,
+ il = keys.length; i < il; i++) {
+ attributesKey += keys[i] + ':' + attributes[keys[i]] + ';'
+ }
+ return attributesKey
+ }
+ function cloneBufferAttribute(attribute) {
+ if (attribute.isInterleavedBufferAttribute) {
+ var count = attribute.count;
+ var itemSize = attribute.itemSize;
+ var array = attribute.array.slice(0, count * itemSize);
+ for (var i = 0,
+ j = 0; i < count; ++i) {
+ array[j++] = attribute.getX(i);
+ if (itemSize >= 2) array[j++] = attribute.getY(i);
+ if (itemSize >= 3) array[j++] = attribute.getZ(i);
+ if (itemSize >= 4) array[j++] = attribute.getW(i)
+ }
+ return new THREE.BufferAttribute(array, itemSize, attribute.normalized)
+ }
+ return attribute.clone()
+ }
+ function GLTFParser(json, extensions, options) {
+ this.json = json || {};
+ this.extensions = extensions || {};
+ this.options = options || {};
+ this.cache = new GLTFRegistry();
+ this.primitiveCache = {};
+ this.textureLoader = new THREE.TextureLoader(this.options.manager);
+ this.textureLoader.setCrossOrigin(this.options.crossOrigin);
+ this.fileLoader = new THREE.FileLoader(this.options.manager);
+ this.fileLoader.setResponseType('arraybuffer')
+ }
+ GLTFParser.prototype.parse = function(onLoad, onError) {
+ var parser = this;
+ var json = this.json;
+ var extensions = this.extensions;
+ this.cache.removeAll();
+ this.markDefs();
+ Promise.all([this.getDependencies('scene'), this.getDependencies('animation'), this.getDependencies('camera'), ]).then(function(dependencies) {
+ var result = {
+ scene: dependencies[0][json.scene || 0],
+ scenes: dependencies[0],
+ animations: dependencies[1],
+ cameras: dependencies[2],
+ asset: json.asset,
+ parser: parser,
+ userData: {}
+ };
+ addUnknownExtensionsToUserData(extensions, result, json);
+ assignExtrasToUserData(result, json);
+ onLoad(result)
+ }).
+ catch(onError)
+ };
+ GLTFParser.prototype.markDefs = function() {
+ var nodeDefs = this.json.nodes || [];
+ var skinDefs = this.json.skins || [];
+ var meshDefs = this.json.meshes || [];
+ var meshReferences = {};
+ var meshUses = {};
+ for (var skinIndex = 0,
+ skinLength = skinDefs.length; skinIndex < skinLength; skinIndex++) {
+ var joints = skinDefs[skinIndex].joints;
+ for (var i = 0,
+ il = joints.length; i < il; i++) {
+ nodeDefs[joints[i]].isBone = true
+ }
+ }
+ for (var nodeIndex = 0,
+ nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
+ var nodeDef = nodeDefs[nodeIndex];
+ if (nodeDef.mesh !== undefined) {
+ if (meshReferences[nodeDef.mesh] === undefined) {
+ meshReferences[nodeDef.mesh] = meshUses[nodeDef.mesh] = 0
+ }
+ meshReferences[nodeDef.mesh]++;
+ if (nodeDef.skin !== undefined) {
+ meshDefs[nodeDef.mesh].isSkinnedMesh = true
+ }
+ }
+ }
+ this.json.meshReferences = meshReferences;
+ this.json.meshUses = meshUses
+ };
+ GLTFParser.prototype.getDependency = function(type, index) {
+ var cacheKey = type + ':' + index;
+ var dependency = this.cache.get(cacheKey);
+ if (!dependency) {
+ switch (type) {
+ case 'scene':
+ dependency = this.loadScene(index);
+ break;
+ case 'node':
+ dependency = this.loadNode(index);
+ break;
+ case 'mesh':
+ dependency = this.loadMesh(index);
+ break;
+ case 'accessor':
+ dependency = this.loadAccessor(index);
+ break;
+ case 'bufferView':
+ dependency = this.loadBufferView(index);
+ break;
+ case 'buffer':
+ dependency = this.loadBuffer(index);
+ break;
+ case 'material':
+ dependency = this.loadMaterial(index);
+ break;
+ case 'texture':
+ dependency = this.loadTexture(index);
+ break;
+ case 'skin':
+ dependency = this.loadSkin(index);
+ break;
+ case 'animation':
+ dependency = this.loadAnimation(index);
+ break;
+ case 'camera':
+ dependency = this.loadCamera(index);
+ break;
+ case 'light':
+ dependency = this.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL].loadLight(index);
+ break;
+ default:
+ throw new Error('Unknown type: ' + type);
+ }
+ this.cache.add(cacheKey, dependency)
+ }
+ return dependency
+ };
+ GLTFParser.prototype.getDependencies = function(type) {
+ var dependencies = this.cache.get(type);
+ if (!dependencies) {
+ var parser = this;
+ var defs = this.json[type + (type === 'mesh' ? 'es': 's')] || [];
+ dependencies = Promise.all(defs.map(function(def, index) {
+ return parser.getDependency(type, index)
+ }));
+ this.cache.add(type, dependencies)
+ }
+ return dependencies
+ };
+ GLTFParser.prototype.loadBuffer = function(bufferIndex) {
+ var bufferDef = this.json.buffers[bufferIndex];
+ var loader = this.fileLoader;
+ if (bufferDef.type && bufferDef.type !== 'arraybuffer') {
+ throw new Error('THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.');
+ }
+ if (bufferDef.uri === undefined && bufferIndex === 0) {
+ return Promise.resolve(this.extensions[EXTENSIONS.KHR_BINARY_GLTF].body)
+ }
+ var options = this.options;
+ return new Promise(function(resolve, reject) {
+ loader.load(resolveURL(bufferDef.uri, options.path), resolve, undefined,
+ function() {
+ reject(new Error('THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".'))
+ })
+ })
+ };
+ GLTFParser.prototype.loadBufferView = function(bufferViewIndex) {
+ var bufferViewDef = this.json.bufferViews[bufferViewIndex];
+ return this.getDependency('buffer', bufferViewDef.buffer).then(function(buffer) {
+ var byteLength = bufferViewDef.byteLength || 0;
+ var byteOffset = bufferViewDef.byteOffset || 0;
+ return buffer.slice(byteOffset, byteOffset + byteLength)
+ })
+ };
+ GLTFParser.prototype.loadAccessor = function(accessorIndex) {
+ var parser = this;
+ var json = this.json;
+ var accessorDef = this.json.accessors[accessorIndex];
+ if (accessorDef.bufferView === undefined && accessorDef.sparse === undefined) {
+ return Promise.resolve(null)
+ }
+ var pendingBufferViews = [];
+ if (accessorDef.bufferView !== undefined) {
+ pendingBufferViews.push(this.getDependency('bufferView', accessorDef.bufferView))
+ } else {
+ pendingBufferViews.push(null)
+ }
+ if (accessorDef.sparse !== undefined) {
+ pendingBufferViews.push(this.getDependency('bufferView', accessorDef.sparse.indices.bufferView));
+ pendingBufferViews.push(this.getDependency('bufferView', accessorDef.sparse.values.bufferView))
+ }
+ return Promise.all(pendingBufferViews).then(function(bufferViews) {
+ var bufferView = bufferViews[0];
+ var itemSize = WEBGL_TYPE_SIZES[accessorDef.type];
+ var TypedArray = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
+ var elementBytes = TypedArray.BYTES_PER_ELEMENT;
+ var itemBytes = elementBytes * itemSize;
+ var byteOffset = accessorDef.byteOffset || 0;
+ var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[accessorDef.bufferView].byteStride: undefined;
+ var normalized = accessorDef.normalized === true;
+ var array, bufferAttribute;
+ if (byteStride && byteStride !== itemBytes) {
+ var ibSlice = Math.floor(byteOffset / byteStride);
+ var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
+ var ib = parser.cache.get(ibCacheKey);
+ if (!ib) {
+ array = new TypedArray(bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes);
+ ib = new THREE.InterleavedBuffer(array, byteStride / elementBytes);
+ parser.cache.add(ibCacheKey, ib)
+ }
+ bufferAttribute = new THREE.InterleavedBufferAttribute(ib, itemSize, (byteOffset % byteStride) / elementBytes, normalized)
+ } else {
+ if (bufferView === null) {
+ array = new TypedArray(accessorDef.count * itemSize)
+ } else {
+ array = new TypedArray(bufferView, byteOffset, accessorDef.count * itemSize)
+ }
+ bufferAttribute = new THREE.BufferAttribute(array, itemSize, normalized)
+ }
+ if (accessorDef.sparse !== undefined) {
+ var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
+ var TypedArrayIndices = WEBGL_COMPONENT_TYPES[accessorDef.sparse.indices.componentType];
+ var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
+ var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
+ var sparseIndices = new TypedArrayIndices(bufferViews[1], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices);
+ var sparseValues = new TypedArray(bufferViews[2], byteOffsetValues, accessorDef.sparse.count * itemSize);
+ if (bufferView !== null) {
+ bufferAttribute.setArray(bufferAttribute.array.slice())
+ }
+ for (var i = 0,
+ il = sparseIndices.length; i < il; i++) {
+ var index = sparseIndices[i];
+ bufferAttribute.setX(index, sparseValues[i * itemSize]);
+ if (itemSize >= 2) bufferAttribute.setY(index, sparseValues[i * itemSize + 1]);
+ if (itemSize >= 3) bufferAttribute.setZ(index, sparseValues[i * itemSize + 2]);
+ if (itemSize >= 4) bufferAttribute.setW(index, sparseValues[i * itemSize + 3]);
+ if (itemSize >= 5) throw new Error('THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.');
+ }
+ }
+ return bufferAttribute
+ })
+ };
+ GLTFParser.prototype.loadTexture = function(textureIndex) {
+ var parser = this;
+ var json = this.json;
+ var options = this.options;
+ var textureLoader = this.textureLoader;
+ // var URL = global.URL;
+ var textureDef = json.textures[textureIndex];
+ var textureExtensions = textureDef.extensions || {};
+ var source;
+ if (textureExtensions[EXTENSIONS.MSFT_TEXTURE_DDS]) {
+ source = json.images[textureExtensions[EXTENSIONS.MSFT_TEXTURE_DDS].source]
+ } else {
+ source = json.images[textureDef.source]
+ }
+ var sourceURI = source.uri;
+ var isObjectURL = false;
+ if (source.bufferView !== undefined) {
+ sourceURI = parser.getDependency('bufferView', source.bufferView).then(function(bufferView) {
+ isObjectURL = true;
+ // 寰俊灏忕▼搴忎笉鏀寔 Blob 瀵硅薄锛屽垯浣跨敤 base64 缂栫爜鐨勫瓧绗︿覆鏉ュ垱寤� data URI
+ const base64Str = wx.arrayBufferToBase64(bufferView);
+ sourceURI = `data:${source.mimeType};base64,${base64Str}`;
+ return sourceURI
+ })
+ }
+ return Promise.resolve(sourceURI).then(function(sourceURI) {
+ var loader = THREE.Loader.Handlers.get(sourceURI);
+ if (!loader) {
+ loader = textureExtensions[EXTENSIONS.MSFT_TEXTURE_DDS] ? parser.extensions[EXTENSIONS.MSFT_TEXTURE_DDS].ddsLoader: textureLoader
+ }
+ return new Promise(function(resolve, reject) {
+ loader.load(resolveURL(sourceURI, options.path), resolve, undefined, reject)
+ })
+ }).then(function(texture) {
+ if (isObjectURL === true) {
+ // URL.revokeObjectURL(sourceURI)
+ }
+ texture.flipY = false;
+ if (textureDef.name !== undefined) texture.name = textureDef.name;
+ if (source.mimeType in MIME_TYPE_FORMATS) {
+ texture.format = MIME_TYPE_FORMATS[source.mimeType]
+ }
+ var samplers = json.samplers || {};
+ var sampler = samplers[textureDef.sampler] || {};
+ texture.magFilter = WEBGL_FILTERS[sampler.magFilter] || THREE.LinearFilter;
+ texture.minFilter = WEBGL_FILTERS[sampler.minFilter] || THREE.LinearMipmapLinearFilter;
+ texture.wrapS = WEBGL_WRAPPINGS[sampler.wrapS] || THREE.RepeatWrapping;
+ texture.wrapT = WEBGL_WRAPPINGS[sampler.wrapT] || THREE.RepeatWrapping;
+ return texture
+ })
+ };
+ GLTFParser.prototype.assignTexture = function(materialParams, mapName, mapDef) {
+ var parser = this;
+ return this.getDependency('texture', mapDef.index).then(function(texture) {
+ if (!texture.isCompressedTexture) {
+ switch (mapName) {
+ case 'aoMap':
+ case 'emissiveMap':
+ case 'metalnessMap':
+ case 'normalMap':
+ case 'roughnessMap':
+ texture.format = THREE.RGBFormat;
+ break
+ }
+ }
+ if (parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM]) {
+ var transform = mapDef.extensions !== undefined ? mapDef.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM] : undefined;
+ if (transform) {
+ texture = parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM].extendTexture(texture, transform)
+ }
+ }
+ materialParams[mapName] = texture
+ })
+ };
+ GLTFParser.prototype.assignFinalMaterial = function(mesh) {
+ var geometry = mesh.geometry;
+ var material = mesh.material;
+ var extensions = this.extensions;
+ var useVertexTangents = geometry.attributes.tangent !== undefined;
+ var useVertexColors = geometry.attributes.color !== undefined;
+ var useFlatShading = geometry.attributes.normal === undefined;
+ var useSkinning = mesh.isSkinnedMesh === true;
+ var useMorphTargets = Object.keys(geometry.morphAttributes).length > 0;
+ var useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;
+ if (mesh.isPoints) {
+ var cacheKey = 'PointsMaterial:' + material.uuid;
+ var pointsMaterial = this.cache.get(cacheKey);
+ if (!pointsMaterial) {
+ pointsMaterial = new THREE.PointsMaterial();
+ THREE.Material.prototype.copy.call(pointsMaterial, material);
+ pointsMaterial.color.copy(material.color);
+ pointsMaterial.map = material.map;
+ pointsMaterial.lights = false;
+ pointsMaterial.sizeAttenuation = false;
+ this.cache.add(cacheKey, pointsMaterial)
+ }
+ material = pointsMaterial
+ } else if (mesh.isLine) {
+ var cacheKey = 'LineBasicMaterial:' + material.uuid;
+ var lineMaterial = this.cache.get(cacheKey);
+ if (!lineMaterial) {
+ lineMaterial = new THREE.LineBasicMaterial();
+ THREE.Material.prototype.copy.call(lineMaterial, material);
+ lineMaterial.color.copy(material.color);
+ lineMaterial.lights = false;
+ this.cache.add(cacheKey, lineMaterial)
+ }
+ material = lineMaterial
+ }
+ if (useVertexTangents || useVertexColors || useFlatShading || useSkinning || useMorphTargets) {
+ var cacheKey = 'ClonedMaterial:' + material.uuid + ':';
+ if (material.isGLTFSpecularGlossinessMaterial) cacheKey += 'specular-glossiness:';
+ if (useSkinning) cacheKey += 'skinning:';
+ if (useVertexTangents) cacheKey += 'vertex-tangents:';
+ if (useVertexColors) cacheKey += 'vertex-colors:';
+ if (useFlatShading) cacheKey += 'flat-shading:';
+ if (useMorphTargets) cacheKey += 'morph-targets:';
+ if (useMorphNormals) cacheKey += 'morph-normals:';
+ var cachedMaterial = this.cache.get(cacheKey);
+ if (!cachedMaterial) {
+ cachedMaterial = material.isGLTFSpecularGlossinessMaterial ? extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].cloneMaterial(material) : material.clone();
+ if (useSkinning) cachedMaterial.skinning = true;
+ if (useVertexTangents) cachedMaterial.vertexTangents = true;
+ if (useVertexColors) cachedMaterial.vertexColors = THREE.VertexColors;
+ if (useFlatShading) cachedMaterial.flatShading = true;
+ if (useMorphTargets) cachedMaterial.morphTargets = true;
+ if (useMorphNormals) cachedMaterial.morphNormals = true;
+ this.cache.add(cacheKey, cachedMaterial)
+ }
+ material = cachedMaterial
+ }
+ if (material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined) {
+ console.log('THREE.GLTFLoader: Duplicating UVs to support aoMap.');
+ geometry.addAttribute('uv2', new THREE.BufferAttribute(geometry.attributes.uv.array, 2))
+ }
+ if (material.isGLTFSpecularGlossinessMaterial) {
+ mesh.onBeforeRender = extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].refreshUniforms
+ }
+ mesh.material = material
+ };
+ GLTFParser.prototype.loadMaterial = function(materialIndex) {
+ var parser = this;
+ var json = this.json;
+ var extensions = this.extensions;
+ var materialDef = json.materials[materialIndex];
+ var materialType;
+ var materialParams = {};
+ var materialExtensions = materialDef.extensions || {};
+ var pending = [];
+ if (materialExtensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS]) {
+ var sgExtension = extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS];
+ materialType = sgExtension.getMaterialType();
+ pending.push(sgExtension.extendParams(materialParams, materialDef, parser))
+ } else if (materialExtensions[EXTENSIONS.KHR_MATERIALS_UNLIT]) {
+ var kmuExtension = extensions[EXTENSIONS.KHR_MATERIALS_UNLIT];
+ materialType = kmuExtension.getMaterialType();
+ pending.push(kmuExtension.extendParams(materialParams, materialDef, parser))
+ } else {
+ materialType = THREE.MeshStandardMaterial;
+ var metallicRoughness = materialDef.pbrMetallicRoughness || {};
+ materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
+ materialParams.opacity = 1.0;
+ if (Array.isArray(metallicRoughness.baseColorFactor)) {
+ var array = metallicRoughness.baseColorFactor;
+ materialParams.color.fromArray(array);
+ materialParams.opacity = array[3]
+ }
+ if (metallicRoughness.baseColorTexture !== undefined) {
+ pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture))
+ }
+ materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor: 1.0;
+ materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor: 1.0;
+ if (metallicRoughness.metallicRoughnessTexture !== undefined) {
+ pending.push(parser.assignTexture(materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture));
+ pending.push(parser.assignTexture(materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture))
+ }
+ }
+ if (materialDef.doubleSided === true) {
+ materialParams.side = THREE.DoubleSide
+ }
+ var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
+ if (alphaMode === ALPHA_MODES.BLEND) {
+ materialParams.transparent = true
+ } else {
+ materialParams.transparent = false;
+ if (alphaMode === ALPHA_MODES.MASK) {
+ materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff: 0.5
+ }
+ }
+ if (materialDef.normalTexture !== undefined && materialType !== THREE.MeshBasicMaterial) {
+ pending.push(parser.assignTexture(materialParams, 'normalMap', materialDef.normalTexture));
+ materialParams.normalScale = new THREE.Vector2(1, 1);
+ if (materialDef.normalTexture.scale !== undefined) {
+ materialParams.normalScale.set(materialDef.normalTexture.scale, materialDef.normalTexture.scale)
+ }
+ }
+ if (materialDef.occlusionTexture !== undefined && materialType !== THREE.MeshBasicMaterial) {
+ pending.push(parser.assignTexture(materialParams, 'aoMap', materialDef.occlusionTexture));
+ if (materialDef.occlusionTexture.strength !== undefined) {
+ materialParams.aoMapIntensity = materialDef.occlusionTexture.strength
+ }
+ }
+ if (materialDef.emissiveFactor !== undefined && materialType !== THREE.MeshBasicMaterial) {
+ materialParams.emissive = new THREE.Color().fromArray(materialDef.emissiveFactor)
+ }
+ if (materialDef.emissiveTexture !== undefined && materialType !== THREE.MeshBasicMaterial) {
+ pending.push(parser.assignTexture(materialParams, 'emissiveMap', materialDef.emissiveTexture))
+ }
+ return Promise.all(pending).then(function() {
+ var material;
+ if (materialType === THREE.ShaderMaterial) {
+ material = extensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].createMaterial(materialParams)
+ } else {
+ material = new materialType(materialParams)
+ }
+ if (materialDef.name !== undefined) material.name = materialDef.name;
+ if (material.map) material.map.encoding = THREE.sRGBEncoding;
+ if (material.emissiveMap) material.emissiveMap.encoding = THREE.sRGBEncoding;
+ if (material.specularMap) material.specularMap.encoding = THREE.sRGBEncoding;
+ assignExtrasToUserData(material, materialDef);
+ if (materialDef.extensions) addUnknownExtensionsToUserData(extensions, material, materialDef);
+ return material
+ })
+ };
+ function addPrimitiveAttributes(geometry, primitiveDef, parser) {
+ var attributes = primitiveDef.attributes;
+ var pending = [];
+ function assignAttributeAccessor(accessorIndex, attributeName) {
+ return parser.getDependency('accessor', accessorIndex).then(function(accessor) {
+ geometry.addAttribute(attributeName, accessor)
+ })
+ }
+ for (var gltfAttributeName in attributes) {
+ var threeAttributeName = ATTRIBUTES[gltfAttributeName] || gltfAttributeName.toLowerCase();
+ if (threeAttributeName in geometry.attributes) continue;
+ pending.push(assignAttributeAccessor(attributes[gltfAttributeName], threeAttributeName))
+ }
+ if (primitiveDef.indices !== undefined && !geometry.index) {
+ var accessor = parser.getDependency('accessor', primitiveDef.indices).then(function(accessor) {
+ geometry.setIndex(accessor)
+ });
+ pending.push(accessor)
+ }
+ assignExtrasToUserData(geometry, primitiveDef);
+ return Promise.all(pending).then(function() {
+ return primitiveDef.targets !== undefined ? addMorphTargets(geometry, primitiveDef.targets, parser) : geometry
+ })
+ }
+ GLTFParser.prototype.loadGeometries = function(primitives) {
+ var parser = this;
+ var extensions = this.extensions;
+ var cache = this.primitiveCache;
+ function createDracoPrimitive(primitive) {
+ return extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION].decodePrimitive(primitive, parser).then(function(geometry) {
+ return addPrimitiveAttributes(geometry, primitive, parser)
+ })
+ }
+ var pending = [];
+ for (var i = 0,
+ il = primitives.length; i < il; i++) {
+ var primitive = primitives[i];
+ var cacheKey = createPrimitiveKey(primitive);
+ var cached = cache[cacheKey];
+ if (cached) {
+ pending.push(cached.promise)
+ } else {
+ var geometryPromise;
+ if (primitive.extensions && primitive.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION]) {
+ geometryPromise = createDracoPrimitive(primitive)
+ } else {
+ geometryPromise = addPrimitiveAttributes(new THREE.BufferGeometry(), primitive, parser)
+ }
+ cache[cacheKey] = {
+ primitive: primitive,
+ promise: geometryPromise
+ };
+ pending.push(geometryPromise)
+ }
+ }
+ return Promise.all(pending)
+ };
+ GLTFParser.prototype.loadMesh = function(meshIndex) {
+ var parser = this;
+ var json = this.json;
+ var meshDef = json.meshes[meshIndex];
+ var primitives = meshDef.primitives;
+ var pending = [];
+ for (var i = 0,
+ il = primitives.length; i < il; i++) {
+ var material = primitives[i].material === undefined ? createDefaultMaterial() : this.getDependency('material', primitives[i].material);
+ pending.push(material)
+ }
+ return Promise.all(pending).then(function(originalMaterials) {
+ return parser.loadGeometries(primitives).then(function(geometries) {
+ var meshes = [];
+ for (var i = 0,
+ il = geometries.length; i < il; i++) {
+ var geometry = geometries[i];
+ var primitive = primitives[i];
+ var mesh;
+ var material = originalMaterials[i];
+ if (primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN || primitive.mode === undefined) {
+ mesh = meshDef.isSkinnedMesh === true ? new THREE.SkinnedMesh(geometry, material) : new THREE.Mesh(geometry, material);
+ if (mesh.isSkinnedMesh === true && !mesh.geometry.attributes.skinWeight.normalized) {
+ mesh.normalizeSkinWeights()
+ }
+ if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP) {
+ mesh.drawMode = THREE.TriangleStripDrawMode
+ } else if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN) {
+ mesh.drawMode = THREE.TriangleFanDrawMode
+ }
+ } else if (primitive.mode === WEBGL_CONSTANTS.LINES) {
+ mesh = new THREE.LineSegments(geometry, material)
+ } else if (primitive.mode === WEBGL_CONSTANTS.LINE_STRIP) {
+ mesh = new THREE.Line(geometry, material)
+ } else if (primitive.mode === WEBGL_CONSTANTS.LINE_LOOP) {
+ mesh = new THREE.LineLoop(geometry, material)
+ } else if (primitive.mode === WEBGL_CONSTANTS.POINTS) {
+ mesh = new THREE.Points(geometry, material)
+ } else {
+ throw new Error('THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode);
+ }
+ if (Object.keys(mesh.geometry.morphAttributes).length > 0) {
+ updateMorphTargets(mesh, meshDef)
+ }
+ mesh.name = meshDef.name || ('mesh_' + meshIndex);
+ if (geometries.length > 1) mesh.name += '_' + i;
+ assignExtrasToUserData(mesh, meshDef);
+ parser.assignFinalMaterial(mesh);
+ meshes.push(mesh)
+ }
+ if (meshes.length === 1) {
+ return meshes[0]
+ }
+ var group = new THREE.Group();
+ for (var i = 0,
+ il = meshes.length; i < il; i++) {
+ group.add(meshes[i])
+ }
+ return group
+ })
+ })
+ };
+ GLTFParser.prototype.loadCamera = function(cameraIndex) {
+ var camera;
+ var cameraDef = this.json.cameras[cameraIndex];
+ var params = cameraDef[cameraDef.type];
+ if (!params) {
+ console.warn('THREE.GLTFLoader: Missing camera parameters.');
+ return
+ }
+ if (cameraDef.type === 'perspective') {
+ camera = new THREE.PerspectiveCamera(THREE.Math.radToDeg(params.yfov), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6)
+ } else if (cameraDef.type === 'orthographic') {
+ camera = new THREE.OrthographicCamera(params.xmag / -2, params.xmag / 2, params.ymag / 2, params.ymag / -2, params.znear, params.zfar)
+ }
+ if (cameraDef.name !== undefined) camera.name = cameraDef.name;
+ assignExtrasToUserData(camera, cameraDef);
+ return Promise.resolve(camera)
+ };
+ GLTFParser.prototype.loadSkin = function(skinIndex) {
+ var skinDef = this.json.skins[skinIndex];
+ var skinEntry = {
+ joints: skinDef.joints
+ };
+ if (skinDef.inverseBindMatrices === undefined) {
+ return Promise.resolve(skinEntry)
+ }
+ return this.getDependency('accessor', skinDef.inverseBindMatrices).then(function(accessor) {
+ skinEntry.inverseBindMatrices = accessor;
+ return skinEntry
+ })
+ };
+ GLTFParser.prototype.loadAnimation = function(animationIndex) {
+ var json = this.json;
+ var animationDef = json.animations[animationIndex];
+ var pendingNodes = [];
+ var pendingInputAccessors = [];
+ var pendingOutputAccessors = [];
+ var pendingSamplers = [];
+ var pendingTargets = [];
+ for (var i = 0,
+ il = animationDef.channels.length; i < il; i++) {
+ var channel = animationDef.channels[i];
+ var sampler = animationDef.samplers[channel.sampler];
+ var target = channel.target;
+ var name = target.node !== undefined ? target.node: target.id;
+ var input = animationDef.parameters !== undefined ? animationDef.parameters[sampler.input] : sampler.input;
+ var output = animationDef.parameters !== undefined ? animationDef.parameters[sampler.output] : sampler.output;
+ pendingNodes.push(this.getDependency('node', name));
+ pendingInputAccessors.push(this.getDependency('accessor', input));
+ pendingOutputAccessors.push(this.getDependency('accessor', output));
+ pendingSamplers.push(sampler);
+ pendingTargets.push(target)
+ }
+ return Promise.all([Promise.all(pendingNodes), Promise.all(pendingInputAccessors), Promise.all(pendingOutputAccessors), Promise.all(pendingSamplers), Promise.all(pendingTargets)]).then(function(dependencies) {
+ var nodes = dependencies[0];
+ var inputAccessors = dependencies[1];
+ var outputAccessors = dependencies[2];
+ var samplers = dependencies[3];
+ var targets = dependencies[4];
+ var tracks = [];
+ for (var i = 0,
+ il = nodes.length; i < il; i++) {
+ var node = nodes[i];
+ var inputAccessor = inputAccessors[i];
+ var outputAccessor = outputAccessors[i];
+ var sampler = samplers[i];
+ var target = targets[i];
+ if (node === undefined) continue;
+ node.updateMatrix();
+ node.matrixAutoUpdate = true;
+ var TypedKeyframeTrack;
+ switch (PATH_PROPERTIES[target.path]) {
+ case PATH_PROPERTIES.weights:
+ TypedKeyframeTrack = THREE.NumberKeyframeTrack;
+ break;
+ case PATH_PROPERTIES.rotation:
+ TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
+ break;
+ case PATH_PROPERTIES.position:
+ case PATH_PROPERTIES.scale:
+ default:
+ TypedKeyframeTrack = THREE.VectorKeyframeTrack;
+ break
+ }
+ var targetName = node.name ? node.name: node.uuid;
+ var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[sampler.interpolation] : THREE.InterpolateLinear;
+ var targetNames = [];
+ if (PATH_PROPERTIES[target.path] === PATH_PROPERTIES.weights) {
+ node.traverse(function(object) {
+ if (object.isMesh === true && object.morphTargetInfluences) {
+ targetNames.push(object.name ? object.name: object.uuid)
+ }
+ })
+ } else {
+ targetNames.push(targetName)
+ }
+ var outputArray = outputAccessor.array;
+ if (outputAccessor.normalized) {
+ var scale;
+ if (outputArray.constructor === Int8Array) {
+ scale = 1 / 127
+ } else if (outputArray.constructor === Uint8Array) {
+ scale = 1 / 255
+ } else if (outputArray.constructor == Int16Array) {
+ scale = 1 / 32767
+ } else if (outputArray.constructor === Uint16Array) {
+ scale = 1 / 65535
+ } else {
+ throw new Error('THREE.GLTFLoader: Unsupported output accessor component type.');
+ }
+ var scaled = new Float32Array(outputArray.length);
+ for (var j = 0,
+ jl = outputArray.length; j < jl; j++) {
+ scaled[j] = outputArray[j] * scale
+ }
+ outputArray = scaled
+ }
+ for (var j = 0,
+ jl = targetNames.length; j < jl; j++) {
+ var track = new TypedKeyframeTrack(targetNames[j] + '.' + PATH_PROPERTIES[target.path], inputAccessor.array, outputArray, interpolation);
+ if (sampler.interpolation === 'CUBICSPLINE') {
+ track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline(result) {
+ return new GLTFCubicSplineInterpolant(this.times, this.values, this.getValueSize() / 3, result)
+ };
+ track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true
+ }
+ tracks.push(track)
+ }
+ }
+ var name = animationDef.name !== undefined ? animationDef.name: 'animation_' + animationIndex;
+ return new THREE.AnimationClip(name, undefined, tracks)
+ })
+ };
+ GLTFParser.prototype.loadNode = function(nodeIndex) {
+ var json = this.json;
+ var extensions = this.extensions;
+ var parser = this;
+ var meshReferences = json.meshReferences;
+ var meshUses = json.meshUses;
+ var nodeDef = json.nodes[nodeIndex];
+ return (function() {
+ var pending = [];
+ if (nodeDef.mesh !== undefined) {
+ pending.push(parser.getDependency('mesh', nodeDef.mesh).then(function(mesh) {
+ var node;
+ if (meshReferences[nodeDef.mesh] > 1) {
+ var instanceNum = meshUses[nodeDef.mesh]++;
+ node = mesh.clone();
+ node.name += '_instance_' + instanceNum;
+ node.onBeforeRender = mesh.onBeforeRender;
+ for (var i = 0,
+ il = node.children.length; i < il; i++) {
+ node.children[i].name += '_instance_' + instanceNum;
+ node.children[i].onBeforeRender = mesh.children[i].onBeforeRender
+ }
+ } else {
+ node = mesh
+ }
+ if (nodeDef.weights !== undefined) {
+ node.traverse(function(o) {
+ if (!o.isMesh) return;
+ for (var i = 0,
+ il = nodeDef.weights.length; i < il; i++) {
+ o.morphTargetInfluences[i] = nodeDef.weights[i]
+ }
+ })
+ }
+ return node
+ }))
+ }
+ if (nodeDef.camera !== undefined) {
+ pending.push(parser.getDependency('camera', nodeDef.camera))
+ }
+ if (nodeDef.extensions && nodeDef.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL] && nodeDef.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL].light !== undefined) {
+ pending.push(parser.getDependency('light', nodeDef.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL].light))
+ }
+ return Promise.all(pending)
+ } ()).then(function(objects) {
+ var node;
+ if (nodeDef.isBone === true) {
+ node = new THREE.Bone()
+ } else if (objects.length > 1) {
+ node = new THREE.Group()
+ } else if (objects.length === 1) {
+ node = objects[0]
+ } else {
+ node = new THREE.Object3D()
+ }
+ if (node !== objects[0]) {
+ for (var i = 0,
+ il = objects.length; i < il; i++) {
+ node.add(objects[i])
+ }
+ }
+ if (nodeDef.name !== undefined) {
+ node.userData.name = nodeDef.name;
+ node.name = THREE.PropertyBinding.sanitizeNodeName(nodeDef.name)
+ }
+ assignExtrasToUserData(node, nodeDef);
+ if (nodeDef.extensions) addUnknownExtensionsToUserData(extensions, node, nodeDef);
+ if (nodeDef.matrix !== undefined) {
+ var matrix = new THREE.Matrix4();
+ matrix.fromArray(nodeDef.matrix);
+ node.applyMatrix(matrix)
+ } else {
+ if (nodeDef.translation !== undefined) {
+ node.position.fromArray(nodeDef.translation)
+ }
+ if (nodeDef.rotation !== undefined) {
+ node.quaternion.fromArray(nodeDef.rotation)
+ }
+ if (nodeDef.scale !== undefined) {
+ node.scale.fromArray(nodeDef.scale)
+ }
+ }
+ return node
+ })
+ };
+ GLTFParser.prototype.loadScene = function() {
+ function buildNodeHierachy(nodeId, parentObject, json, parser) {
+ var nodeDef = json.nodes[nodeId];
+ return parser.getDependency('node', nodeId).then(function(node) {
+ if (nodeDef.skin === undefined) return node;
+ var skinEntry;
+ return parser.getDependency('skin', nodeDef.skin).then(function(skin) {
+ skinEntry = skin;
+ var pendingJoints = [];
+ for (var i = 0,
+ il = skinEntry.joints.length; i < il; i++) {
+ pendingJoints.push(parser.getDependency('node', skinEntry.joints[i]))
+ }
+ return Promise.all(pendingJoints)
+ }).then(function(jointNodes) {
+ node.traverse(function(mesh) {
+ if (!mesh.isMesh) return;
+ var bones = [];
+ var boneInverses = [];
+ for (var j = 0,
+ jl = jointNodes.length; j < jl; j++) {
+ var jointNode = jointNodes[j];
+ if (jointNode) {
+ bones.push(jointNode);
+ var mat = new THREE.Matrix4();
+ if (skinEntry.inverseBindMatrices !== undefined) {
+ mat.fromArray(skinEntry.inverseBindMatrices.array, j * 16)
+ }
+ boneInverses.push(mat)
+ } else {
+ console.warn('THREE.GLTFLoader: Joint "%s" could not be found.', skinEntry.joints[j])
+ }
+ }
+ mesh.bind(new THREE.Skeleton(bones, boneInverses), mesh.matrixWorld)
+ });
+ return node
+ })
+ }).then(function(node) {
+ parentObject.add(node);
+ var pending = [];
+ if (nodeDef.children) {
+ var children = nodeDef.children;
+ for (var i = 0,
+ il = children.length; i < il; i++) {
+ var child = children[i];
+ pending.push(buildNodeHierachy(child, node, json, parser))
+ }
+ }
+ return Promise.all(pending)
+ })
+ }
+ return function loadScene(sceneIndex) {
+ var json = this.json;
+ var extensions = this.extensions;
+ var sceneDef = this.json.scenes[sceneIndex];
+ var parser = this;
+ var scene = new THREE.Scene();
+ if (sceneDef.name !== undefined) scene.name = sceneDef.name;
+ assignExtrasToUserData(scene, sceneDef);
+ if (sceneDef.extensions) addUnknownExtensionsToUserData(extensions, scene, sceneDef);
+ var nodeIds = sceneDef.nodes || [];
+ var pending = [];
+ for (var i = 0,
+ il = nodeIds.length; i < il; i++) {
+ pending.push(buildNodeHierachy(nodeIds[i], scene, json, parser))
+ }
+ return Promise.all(pending).then(function() {
+ return scene
+ })
+ }
+ } ();
+ return GLTFLoader
+ })();
+}
\ No newline at end of file
--
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