export function registerGLTFLoader(THREE) {
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THREE.GLTFLoader = (function() {
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function GLTFLoader() {
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this.manager = THREE.DefaultLoadingManager;
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this.dracoLoader = null;
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this.ddsLoader = null
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}
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GLTFLoader.prototype = {
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constructor: GLTFLoader,
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crossOrigin: 'anonymous',
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load: function(url, onLoad) {
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var scope = this;
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var resourcePath;
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if (this.resourcePath !== undefined) {
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resourcePath = this.resourcePath
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} else if (this.path !== undefined) {
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resourcePath = this.path
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} else {
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resourcePath = THREE.LoaderUtils.extractUrlBase(url)
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}
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scope.manager.itemStart(url);
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var _onError = function(e) {
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console.error(e);
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scope.manager.itemError(url);
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scope.manager.itemEnd(url)
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};
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var loader = new THREE.FileLoader(scope.manager);
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loader.setPath(this.path);
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loader.setResponseType('arraybuffer');
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loader.load(url,
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function(data) {
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try {
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scope.parse(data, resourcePath,
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function(gltf) {
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onLoad(gltf);
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scope.manager.itemEnd(url)
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},
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_onError)
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} catch(e) {
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_onError(e)
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}
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},
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null, _onError)
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},
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parse: function(data, path, onLoad, onError) {
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var content;
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var extensions = {};
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if (typeof data === 'string') {
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content = data
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} else {
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var magic = THREE.LoaderUtils.decodeText(new Uint8Array(data, 0, 4));
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if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
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try {
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extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data)
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} catch(error) {
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if (onError) onError(error);
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return
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}
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content = extensions[EXTENSIONS.KHR_BINARY_GLTF].content
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} else {
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content = THREE.LoaderUtils.decodeText(new Uint8Array(data))
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}
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}
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var json = JSON.parse(content);
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if (json.asset === undefined || json.asset.version[0] < 2) {
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if (onError) onError(new Error('THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.'));
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return
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}
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if (json.extensionsUsed) {
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for (var i = 0; i < json.extensionsUsed.length; ++i) {
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var extensionName = json.extensionsUsed[i];
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var extensionsRequired = json.extensionsRequired || [];
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switch (extensionName) {
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case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
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extensions[extensionName] = new GLTFLightsExtension(json);
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break;
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case EXTENSIONS.KHR_MATERIALS_UNLIT:
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extensions[extensionName] = new GLTFMaterialsUnlitExtension();
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break;
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case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
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extensions[extensionName] = new GLTFMaterialsPbrSpecularGlossinessExtension();
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break;
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case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
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extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
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break;
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case EXTENSIONS.MSFT_TEXTURE_DDS:
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extensions[EXTENSIONS.MSFT_TEXTURE_DDS] = new GLTFTextureDDSExtension(this.ddsLoader);
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break;
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case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
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extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM] = new GLTFTextureTransformExtension();
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break;
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default:
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if (extensionsRequired.indexOf(extensionName) >= 0) {
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console.warn('THREE.GLTFLoader: Unknown extension "' + extensionName + '".')
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}
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}
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}
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}
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var parser = new GLTFParser(json, extensions, {
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path: path || this.resourcePath || '',
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crossOrigin: this.crossOrigin,
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manager: this.manager
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});
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parser.parse(onLoad, onError)
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}
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};
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function GLTFRegistry() {
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var objects = {};
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return {
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get: function(key) {
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return objects[key]
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},
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add: function(key, object) {
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objects[key] = object
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},
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remove: function(key) {
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delete objects[key]
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},
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removeAll: function() {
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objects = {}
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}
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}
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}
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var EXTENSIONS = {
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KHR_BINARY_GLTF: 'KHR_binary_glTF',
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KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
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KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
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KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
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KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
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KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
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MSFT_TEXTURE_DDS: 'MSFT_texture_dds'
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};
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function GLTFTextureDDSExtension(ddsLoader) {
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if (!ddsLoader) {
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throw new Error('THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader');
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}
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this.name = EXTENSIONS.MSFT_TEXTURE_DDS;
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this.ddsLoader = ddsLoader
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}
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function GLTFLightsExtension(json) {
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this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
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var extension = (json.extensions && json.extensions[EXTENSIONS.KHR_LIGHTS_PUNCTUAL]) || {};
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this.lightDefs = extension.lights || []
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}
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GLTFLightsExtension.prototype.loadLight = function(lightIndex) {
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var lightDef = this.lightDefs[lightIndex];
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var lightNode;
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var color = new THREE.Color(0xffffff);
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if (lightDef.color !== undefined) color.fromArray(lightDef.color);
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var range = lightDef.range !== undefined ? lightDef.range: 0;
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switch (lightDef.type) {
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case 'directional':
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lightNode = new THREE.DirectionalLight(color);
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lightNode.target.position.set(0, 0, -1);
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lightNode.add(lightNode.target);
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break;
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case 'point':
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lightNode = new THREE.PointLight(color);
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lightNode.distance = range;
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break;
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case 'spot':
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lightNode = new THREE.SpotLight(color);
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lightNode.distance = range;
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lightDef.spot = lightDef.spot || {};
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lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle: 0;
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lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle: Math.PI / 4.0;
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lightNode.angle = lightDef.spot.outerConeAngle;
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lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
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lightNode.target.position.set(0, 0, -1);
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lightNode.add(lightNode.target);
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break;
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default:
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throw new Error('THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".');
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}
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lightNode.position.set(0, 0, 0);
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lightNode.decay = 2;
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if (lightDef.intensity !== undefined) lightNode.intensity = lightDef.intensity;
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lightNode.name = lightDef.name || ('light_' + lightIndex);
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return Promise.resolve(lightNode)
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};
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function GLTFMaterialsUnlitExtension() {
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this.name = EXTENSIONS.KHR_MATERIALS_UNLIT
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}
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GLTFMaterialsUnlitExtension.prototype.getMaterialType = function() {
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return THREE.MeshBasicMaterial
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};
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GLTFMaterialsUnlitExtension.prototype.extendParams = function(materialParams, materialDef, parser) {
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var pending = [];
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materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
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materialParams.opacity = 1.0;
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var metallicRoughness = materialDef.pbrMetallicRoughness;
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if (metallicRoughness) {
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if (Array.isArray(metallicRoughness.baseColorFactor)) {
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var array = metallicRoughness.baseColorFactor;
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materialParams.color.fromArray(array);
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materialParams.opacity = array[3]
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}
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if (metallicRoughness.baseColorTexture !== undefined) {
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pending.push(parser.assignTexture(materialParams, 'map', metallicRoughness.baseColorTexture))
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}
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}
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return Promise.all(pending)
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};
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var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
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var BINARY_EXTENSION_HEADER_LENGTH = 12;
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var BINARY_EXTENSION_CHUNK_TYPES = {
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JSON: 0x4E4F534A,
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BIN: 0x004E4942
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};
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function GLTFBinaryExtension(data) {
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this.name = EXTENSIONS.KHR_BINARY_GLTF;
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this.content = null;
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this.body = null;
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var headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
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this.header = {
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magic: THREE.LoaderUtils.decodeText(new Uint8Array(data.slice(0, 4))),
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version: headerView.getUint32(4, true),
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length: headerView.getUint32(8, true)
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};
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if (this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC) {
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throw new Error('THREE.GLTFLoader: Unsupported glTF-Binary header.');
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} else if (this.header.version < 2.0) {
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throw new Error('THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.');
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}
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var chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
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var chunkIndex = 0;
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while (chunkIndex < chunkView.byteLength) {
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var chunkLength = chunkView.getUint32(chunkIndex, true);
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chunkIndex += 4;
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var chunkType = chunkView.getUint32(chunkIndex, true);
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chunkIndex += 4;
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if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
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var contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
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this.content = THREE.LoaderUtils.decodeText(contentArray)
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} else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
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var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
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this.body = data.slice(byteOffset, byteOffset + chunkLength)
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}
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chunkIndex += chunkLength
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}
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if (this.content === null) {
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throw new Error('THREE.GLTFLoader: JSON content not found.');
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}
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}
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function GLTFDracoMeshCompressionExtension(json, dracoLoader) {
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if (!dracoLoader) {
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throw new Error('THREE.GLTFLoader: No DRACOLoader instance provided.');
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}
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this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
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this.json = json;
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this.dracoLoader = dracoLoader
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}
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GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function(primitive, parser) {
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var json = this.json;
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var dracoLoader = this.dracoLoader;
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var bufferViewIndex = primitive.extensions[this.name].bufferView;
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var gltfAttributeMap = primitive.extensions[this.name].attributes;
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var threeAttributeMap = {};
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var attributeNormalizedMap = {};
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var attributeTypeMap = {};
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for (var attributeName in gltfAttributeMap) {
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var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
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threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName]
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}
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for (attributeName in primitive.attributes) {
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var threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
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if (gltfAttributeMap[attributeName] !== undefined) {
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var accessorDef = json.accessors[primitive.attributes[attributeName]];
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var componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
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attributeTypeMap[threeAttributeName] = componentType;
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attributeNormalizedMap[threeAttributeName] = accessorDef.normalized === true
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}
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}
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return parser.getDependency('bufferView', bufferViewIndex).then(function(bufferView) {
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return new Promise(function(resolve) {
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dracoLoader.decodeDracoFile(bufferView,
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function(geometry) {
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for (var attributeName in geometry.attributes) {
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var attribute = geometry.attributes[attributeName];
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var normalized = attributeNormalizedMap[attributeName];
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if (normalized !== undefined) attribute.normalized = normalized
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}
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resolve(geometry)
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},
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threeAttributeMap, attributeTypeMap)
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})
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})
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};
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function GLTFTextureTransformExtension() {
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this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM
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}
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GLTFTextureTransformExtension.prototype.extendTexture = function(texture, transform) {
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texture = texture.clone();
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if (transform.offset !== undefined) {
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texture.offset.fromArray(transform.offset)
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}
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if (transform.rotation !== undefined) {
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texture.rotation = transform.rotation
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}
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if (transform.scale !== undefined) {
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texture.repeat.fromArray(transform.scale)
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}
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if (transform.texCoord !== undefined) {
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console.warn('THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.')
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}
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texture.needsUpdate = true;
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return texture
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};
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function GLTFMaterialsPbrSpecularGlossinessExtension() {
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return {
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name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
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specularGlossinessParams: ['color', 'map', 'lightMap', 'lightMapIntensity', 'aoMap', 'aoMapIntensity', 'emissive', 'emissiveIntensity', 'emissiveMap', 'bumpMap', 'bumpScale', 'normalMap', 'displacementMap', 'displacementScale', 'displacementBias', 'specularMap', 'specular', 'glossinessMap', 'glossiness', 'alphaMap', 'envMap', 'envMapIntensity', 'refractionRatio', ],
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getMaterialType: function() {
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return THREE.ShaderMaterial
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},
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extendParams: function(materialParams, materialDef, parser) {
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var pbrSpecularGlossiness = materialDef.extensions[this.name];
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var shader = THREE.ShaderLib['standard'];
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var uniforms = THREE.UniformsUtils.clone(shader.uniforms);
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var specularMapParsFragmentChunk = ['#ifdef USE_SPECULARMAP', ' uniform sampler2D specularMap;', '#endif'].join('\n');
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var glossinessMapParsFragmentChunk = ['#ifdef USE_GLOSSINESSMAP', ' uniform sampler2D glossinessMap;', '#endif'].join('\n');
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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');
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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');
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var lightPhysicalFragmentChunk = ['PhysicalMaterial material;', 'material.diffuseColor = diffuseColor.rgb;', 'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );', 'material.specularColor = specularFactor.rgb;', ].join('\n');
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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);
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delete uniforms.roughness;
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delete uniforms.metalness;
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delete uniforms.roughnessMap;
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delete uniforms.metalnessMap;
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uniforms.specular = {
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value: new THREE.Color().setHex(0x111111)
|
};
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uniforms.glossiness = {
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value: 0.5
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};
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uniforms.specularMap = {
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value: null
|
};
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uniforms.glossinessMap = {
|
value: null
|
};
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materialParams.vertexShader = shader.vertexShader;
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materialParams.fragmentShader = fragmentShader;
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materialParams.uniforms = uniforms;
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materialParams.defines = {
|
'STANDARD': ''
|
}
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materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
|
materialParams.opacity = 1.0;
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var pending = [];
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if (Array.isArray(pbrSpecularGlossiness.diffuseFactor)) {
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var array = pbrSpecularGlossiness.diffuseFactor;
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materialParams.color.fromArray(array);
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materialParams.opacity = array[3]
|
}
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if (pbrSpecularGlossiness.diffuseTexture !== undefined) {
|
pending.push(parser.assignTexture(materialParams, 'map', pbrSpecularGlossiness.diffuseTexture))
|
}
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materialParams.emissive = new THREE.Color(0.0, 0.0, 0.0);
|
materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor: 1.0;
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materialParams.specular = new THREE.Color(1.0, 1.0, 1.0);
|
if (Array.isArray(pbrSpecularGlossiness.specularFactor)) {
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materialParams.specular.fromArray(pbrSpecularGlossiness.specularFactor)
|
}
|
if (pbrSpecularGlossiness.specularGlossinessTexture !== undefined) {
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var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
|
pending.push(parser.assignTexture(materialParams, 'glossinessMap', specGlossMapDef));
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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;
|
// 微信小程序不支持 Blob 对象，则使用 base64 编码的字符串来创建 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
|
})();
|
}
|
