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3498 lines
92 KiB
3498 lines
92 KiB
export function registerGLTFLoader(THREE) {
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/**
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* @author Rich Tibbett / https://github.com/richtr
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* @author mrdoob / http://mrdoob.com/
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* @author Tony Parisi / http://www.tonyparisi.com/
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* @author Takahiro / https://github.com/takahirox
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* @author Don McCurdy / https://www.donmccurdy.com
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*/
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THREE.GLTFLoader = (function () {
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/** ****************************** */
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/** ******** EXTENSIONS ********** */
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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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/* BINARY EXTENSION */
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var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
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let BINARY_EXTENSION_HEADER_LENGTH = 12;
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let BINARY_EXTENSION_CHUNK_TYPES = {
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JSON: 0x4E4F534A,
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BIN: 0x004E4942,
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};
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/* ATTRIBUTES */
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var ATTRIBUTES = {
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POSITION: 'position',
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NORMAL: 'normal',
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TANGENT: 'tangent',
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TEXCOORD_0: 'uv',
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TEXCOORD_1: 'uv2',
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COLOR_0: 'color',
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WEIGHTS_0: 'skinWeight',
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JOINTS_0: 'skinIndex',
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};
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/* WEBGL_COMPONENT_TYPES */
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var WEBGL_COMPONENT_TYPES = {
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5120: Int8Array,
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5121: Uint8Array,
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5122: Int16Array,
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5123: Uint16Array,
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5125: Uint32Array,
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5126: Float32Array,
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};
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function GLTFLoader(manager) {
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this.manager = (manager !== undefined) ?
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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, onProgress, onError) {
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let scope = this;
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let 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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// Tells the LoadingManager to track an extra item, which resolves after
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// the model is fully loaded. This means the count of items loaded will
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// be incorrect, but ensures manager.onLoad() does not fire early.
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scope.manager.itemStart(url);
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let _onError = function (e) {
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if (onError) {
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onError(e);
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} else {
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console.error(e);
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}
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scope.manager.itemError(url);
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scope.manager.itemEnd(url);
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};
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let 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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if (scope.crossOrigin === 'use-credentials') {
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loader.setWithCredentials(true);
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}
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loader.load(url, function (data) {
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try {
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scope.parse(data, resourcePath, function (gltf) {
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onLoad(gltf);
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scope.manager.itemEnd(url);
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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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}, onProgress, _onError);
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},
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setCrossOrigin: function (value) {
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this.crossOrigin = value;
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return this;
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},
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setPath: function (value) {
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this.path = value;
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return this;
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},
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setResourcePath: function (value) {
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this.resourcePath = value;
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return this;
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},
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setDRACOLoader: function (dracoLoader) {
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this.dracoLoader = dracoLoader;
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return this;
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},
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setDDSLoader: function (ddsLoader) {
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this.ddsLoader = ddsLoader;
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return this;
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},
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parse: function (data, path, onLoad, onError) {
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let content;
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let extensions = {};
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if (typeof data === 'string') {
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content = data;
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} else {
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let 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) {
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onError(error);
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}
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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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let json = JSON.parse(content);
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if (json.asset === undefined || json.asset.version[0] < 2) {
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if (onError) {
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onError(new Error(
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'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.'
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));
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}
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return;
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}
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if (json.extensionsUsed) {
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for (let i = 0; i < json.extensionsUsed.length; ++i) {
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let extensionName = json.extensionsUsed[i];
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let extensionsRequired = json.extensionsRequired || [];
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switch (extensionName) {
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case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
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extensions[extensionName] =
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new GLTFLightsExtension(json);
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break;
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case EXTENSIONS.KHR_MATERIALS_UNLIT:
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extensions[extensionName] =
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new GLTFMaterialsUnlitExtension();
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break;
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case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
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extensions[extensionName] =
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new GLTFMaterialsPbrSpecularGlossinessExtension();
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break;
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case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
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extensions[extensionName] =
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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] =
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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] =
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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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let 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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/* GLTFREGISTRY */
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function GLTFRegistry() {
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let 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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// /** ****************************** */
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// /** ******** EXTENSIONS ********** */
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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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/**
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* DDS Texture Extension
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*
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* Specification:
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* https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds
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*
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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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/**
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* Lights Extension
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*
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* Specification: PENDING
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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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let extension = (json.extensions &&
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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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let lightDef = this.lightDefs[lightIndex];
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let lightNode;
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let color = new THREE.Color(0xffffff);
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if (lightDef.color !== undefined) {
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color.fromArray(lightDef.color);
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}
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let 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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// Handle spotlight properties.
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lightDef.spot = lightDef.spot || {};
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lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !==
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undefined ? lightDef.spot.innerConeAngle : 0;
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lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !==
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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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// Some lights (e.g. spot) default to a position other than the origin. Reset the position
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// here, because node-level parsing will only override position if explicitly specified.
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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) {
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lightNode.intensity = lightDef.intensity;
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}
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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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/**
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* Unlit Materials Extension (pending)
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*
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* PR: https://github.com/KhronosGroup/glTF/pull/1163
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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 =
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function (materialParams, materialDef, parser) {
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let 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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let metallicRoughness = materialDef.pbrMetallicRoughness;
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if (metallicRoughness) {
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if (Array.isArray(metallicRoughness.baseColorFactor)) {
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let 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,
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'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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// /* BINARY EXTENSION */
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// var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
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// let BINARY_EXTENSION_HEADER_LENGTH = 12;
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// let 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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let 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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let chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
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let chunkIndex = 0;
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while (chunkIndex < chunkView.byteLength) {
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let chunkLength = chunkView.getUint32(chunkIndex, true);
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chunkIndex += 4;
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let 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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let contentArray = new Uint8Array(data,
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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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let 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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// Clients must ignore chunks with unknown types.
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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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/**
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* DRACO Mesh Compression Extension
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*
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* Specification: https://github.com/KhronosGroup/glTF/pull/874
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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 =
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function (primitive, parser) {
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let json = this.json;
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let dracoLoader = this.dracoLoader;
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let bufferViewIndex = primitive.extensions[this.name].bufferView;
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let gltfAttributeMap = primitive.extensions[this.name].attributes;
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let threeAttributeMap = {};
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let attributeNormalizedMap = {};
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let attributeTypeMap = {};
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for (var attributeName in gltfAttributeMap) {
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var threeAttributeName = ATTRIBUTES[attributeName] ||
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attributeName.toLowerCase();
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threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName];
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}
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|
|
for (attributeName in primitive.attributes) {
|
|
|
|
var threeAttributeName = ATTRIBUTES[attributeName] ||
|
|
attributeName.toLowerCase();
|
|
|
|
if (gltfAttributeMap[attributeName] !== undefined) {
|
|
|
|
let accessorDef = json.accessors[primitive.attributes[attributeName]];
|
|
let 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 (let attributeName in geometry.attributes) {
|
|
|
|
let attribute = geometry.attributes[attributeName];
|
|
let normalized = attributeNormalizedMap[attributeName];
|
|
|
|
if (normalized !== undefined) {
|
|
attribute.normalized = normalized;
|
|
}
|
|
|
|
}
|
|
|
|
resolve(geometry);
|
|
|
|
}, threeAttributeMap, attributeTypeMap);
|
|
|
|
});
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Texture Transform Extension
|
|
*
|
|
* Specification:
|
|
*/
|
|
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;
|
|
|
|
};
|
|
|
|
/**
|
|
* Specular-Glossiness Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
|
|
*/
|
|
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) {
|
|
|
|
let pbrSpecularGlossiness = materialDef.extensions[this.name];
|
|
|
|
let shader = THREE.ShaderLib.standard;
|
|
|
|
let uniforms = THREE.UniformsUtils.clone(shader.uniforms);
|
|
|
|
let specularMapParsFragmentChunk = [
|
|
'#ifdef USE_SPECULARMAP',
|
|
' uniform sampler2D specularMap;',
|
|
'#endif',
|
|
].join('\n');
|
|
|
|
let glossinessMapParsFragmentChunk = [
|
|
'#ifdef USE_GLOSSINESSMAP',
|
|
' uniform sampler2D glossinessMap;',
|
|
'#endif',
|
|
].join('\n');
|
|
|
|
let 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');
|
|
|
|
let 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');
|
|
|
|
let lightPhysicalFragmentChunk = [
|
|
'PhysicalMaterial material;',
|
|
'material.diffuseColor = diffuseColor.rgb;',
|
|
'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
|
|
'material.specularColor = specularFactor.rgb;',
|
|
].join('\n');
|
|
|
|
let 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;
|
|
|
|
let pending = [];
|
|
|
|
if (Array.isArray(pbrSpecularGlossiness.diffuseFactor)) {
|
|
|
|
let 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) {
|
|
|
|
let specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
|
|
pending.push(parser.assignTexture(materialParams,
|
|
'glossinessMap', specGlossMapDef));
|
|
pending.push(parser.assignTexture(materialParams,
|
|
'specularMap', specGlossMapDef));
|
|
|
|
}
|
|
|
|
return Promise.all(pending);
|
|
|
|
},
|
|
|
|
createMaterial: function (params) {
|
|
|
|
// setup material properties based on MeshStandardMaterial for Specular-Glossiness
|
|
|
|
let 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;
|
|
|
|
},
|
|
|
|
/**
|
|
* Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can
|
|
* copy only properties it knows about or inherits, and misses many properties that would
|
|
* normally be defined by MeshStandardMaterial.
|
|
*
|
|
* This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of
|
|
* loading a glTF model, but cloning later (e.g. by the user) would require these changes
|
|
* AND also updating `.onBeforeRender` on the parent mesh.
|
|
*
|
|
* @param {THREE.ShaderMaterial} source
|
|
* @return {THREE.ShaderMaterial}
|
|
*/
|
|
cloneMaterial: function (source) {
|
|
|
|
let target = source.clone();
|
|
|
|
target.isGLTFSpecularGlossinessMaterial = true;
|
|
|
|
let params = this.specularGlossinessParams;
|
|
|
|
for (let i = 0, il = params.length; i < il; i++) {
|
|
|
|
let value = source[params[i]];
|
|
target[params[i]] = (value && value.isColor) ? value.clone() : value;
|
|
|
|
}
|
|
|
|
return target;
|
|
|
|
},
|
|
|
|
// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
|
|
refreshUniforms: function (renderer, scene, camera, geometry, material) {
|
|
|
|
if (material.isGLTFSpecularGlossinessMaterial !== true) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
let uniforms = material.uniforms;
|
|
let 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;
|
|
|
|
// uv repeat and offset setting priorities
|
|
// 1. color map
|
|
// 2. specular map
|
|
// 3. normal map
|
|
// 4. bump map
|
|
// 5. alpha map
|
|
// 6. emissive map
|
|
|
|
let 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) {
|
|
|
|
// backwards compatibility
|
|
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;
|
|
|
|
// don't flip CubeTexture envMaps, flip everything else:
|
|
// WebGLRenderTargetCube will be flipped for backwards compatibility
|
|
// WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
|
|
// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
|
|
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 = '';
|
|
// set USE_ROUGHNESSMAP to enable vUv
|
|
defines.USE_ROUGHNESSMAP = '';
|
|
|
|
}
|
|
|
|
if (uniforms.glossinessMap.value === null &&
|
|
defines.USE_GLOSSINESSMAP !== undefined) {
|
|
|
|
delete defines.USE_GLOSSINESSMAP;
|
|
delete defines.USE_ROUGHNESSMAP;
|
|
|
|
}
|
|
|
|
},
|
|
|
|
};
|
|
|
|
}
|
|
|
|
/** ****************************** */
|
|
/** ******** INTERPOLATION ******* */
|
|
/** ****************************** */
|
|
|
|
// Spline Interpolation
|
|
// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
|
|
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) {
|
|
|
|
// Copies a sample value to the result buffer. See description of glTF
|
|
// CUBICSPLINE values layout in interpolate_() function below.
|
|
|
|
let result = this.resultBuffer;
|
|
let values = this.sampleValues;
|
|
let valueSize = this.valueSize;
|
|
let offset = index * valueSize * 3 + valueSize;
|
|
|
|
for (let 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) {
|
|
|
|
let result = this.resultBuffer;
|
|
let values = this.sampleValues;
|
|
let stride = this.valueSize;
|
|
|
|
let stride2 = stride * 2;
|
|
let stride3 = stride * 3;
|
|
|
|
let td = t1 - t0;
|
|
|
|
let p = (t - t0) / td;
|
|
let pp = p * p;
|
|
let ppp = pp * p;
|
|
|
|
let offset1 = i1 * stride3;
|
|
let offset0 = offset1 - stride3;
|
|
|
|
let s2 = -2 * ppp + 3 * pp;
|
|
let s3 = ppp - pp;
|
|
let s0 = 1 - s2;
|
|
let s1 = s3 - pp + p;
|
|
|
|
// Layout of keyframe output values for CUBICSPLINE animations:
|
|
// [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
|
|
for (let i = 0; i !== stride; i++) {
|
|
|
|
let p0 = values[offset0 + i + stride]; // splineVertex_k
|
|
let m0 = values[offset0 + i + stride2] * td; // outTangent_k * (t_k+1 - t_k)
|
|
let p1 = values[offset1 + i + stride]; // splineVertex_k+1
|
|
let m1 = values[offset1 + i] * td; // inTangent_k+1 * (t_k+1 - t_k)
|
|
|
|
result[i] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
};
|
|
|
|
/** ****************************** */
|
|
/** ******** INTERNALS *********** */
|
|
/** ****************************** */
|
|
|
|
/* CONSTANTS */
|
|
|
|
let WEBGL_CONSTANTS = {
|
|
FLOAT: 5126,
|
|
// FLOAT_MAT2: 35674,
|
|
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,
|
|
// };
|
|
|
|
let WEBGL_FILTERS = {
|
|
9728: THREE.NearestFilter,
|
|
9729: THREE.LinearFilter,
|
|
9984: THREE.NearestMipmapNearestFilter,
|
|
9985: THREE.LinearMipmapNearestFilter,
|
|
9986: THREE.NearestMipmapLinearFilter,
|
|
9987: THREE.LinearMipmapLinearFilter,
|
|
};
|
|
|
|
let WEBGL_WRAPPINGS = {
|
|
33071: THREE.ClampToEdgeWrapping,
|
|
33648: THREE.MirroredRepeatWrapping,
|
|
10497: THREE.RepeatWrapping,
|
|
};
|
|
|
|
let 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',
|
|
// };
|
|
|
|
let PATH_PROPERTIES = {
|
|
scale: 'scale',
|
|
translation: 'position',
|
|
rotation: 'quaternion',
|
|
weights: 'morphTargetInfluences',
|
|
};
|
|
|
|
let INTERPOLATION = {
|
|
CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
|
|
// keyframe track will be initialized with a default interpolation type, then modified.
|
|
LINEAR: THREE.InterpolateLinear,
|
|
STEP: THREE.InterpolateDiscrete,
|
|
};
|
|
|
|
let ALPHA_MODES = {
|
|
OPAQUE: 'OPAQUE',
|
|
MASK: 'MASK',
|
|
BLEND: 'BLEND',
|
|
};
|
|
|
|
let MIME_TYPE_FORMATS = {
|
|
'image/png': THREE.RGBAFormat,
|
|
'image/jpeg': THREE.RGBFormat,
|
|
};
|
|
|
|
/* UTILITY FUNCTIONS */
|
|
|
|
function resolveURL(url, path) {
|
|
|
|
// Invalid URL
|
|
if (typeof url !== 'string' || url === '') {
|
|
return '';
|
|
}
|
|
|
|
// Host Relative URL
|
|
if (/^https?:\/\//i.test(path) && /^\//.test(url)) {
|
|
|
|
path = path.replace(/(^https?:\/\/[^\/]+).*/i, '$1');
|
|
|
|
}
|
|
|
|
// Absolute URL http://,https://,//
|
|
if (/^(https?:)?\/\//i.test(url)) {
|
|
return url;
|
|
}
|
|
|
|
// Data URI
|
|
if (/^data:.*,.*$/i.test(url)) {
|
|
return url;
|
|
}
|
|
|
|
// Blob URL
|
|
if (/^blob:.*$/i.test(url)) {
|
|
return url;
|
|
}
|
|
|
|
// Relative URL
|
|
return path + url;
|
|
|
|
}
|
|
|
|
let defaultMaterial;
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
|
|
*/
|
|
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) {
|
|
|
|
// Add unknown glTF extensions to an object's userData.
|
|
|
|
for (let name in objectDef.extensions) {
|
|
|
|
if (knownExtensions[name] === undefined) {
|
|
|
|
object.userData.gltfExtensions = object.userData.gltfExtensions || {};
|
|
object.userData.gltfExtensions[name] = objectDef.extensions[name];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {THREE.Object3D|THREE.Material|THREE.BufferGeometry} object
|
|
* @param {GLTF.definition} gltfDef
|
|
*/
|
|
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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
|
|
*
|
|
* @param {THREE.BufferGeometry} geometry
|
|
* @param {Array<GLTF.Target>} targets
|
|
* @param {GLTFParser} parser
|
|
* @return {Promise<THREE.BufferGeometry>}
|
|
*/
|
|
function addMorphTargets(geometry, targets, parser) {
|
|
|
|
let hasMorphPosition = false;
|
|
let 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);
|
|
}
|
|
|
|
let pendingPositionAccessors = [];
|
|
let 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) {
|
|
|
|
let morphPositions = accessors[0];
|
|
let morphNormals = accessors[1];
|
|
|
|
// Clone morph target accessors before modifying them.
|
|
|
|
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++) {
|
|
|
|
let target = targets[i];
|
|
let attributeName = 'morphTarget' + i;
|
|
|
|
if (hasMorphPosition) {
|
|
|
|
// Three.js morph position is absolute value. The formula is
|
|
// basePosition
|
|
// + weight0 * ( morphPosition0 - basePosition )
|
|
// + weight1 * ( morphPosition1 - basePosition )
|
|
// ...
|
|
// while the glTF one is relative
|
|
// basePosition
|
|
// + weight0 * glTFmorphPosition0
|
|
// + weight1 * glTFmorphPosition1
|
|
// ...
|
|
// then we need to convert from relative to absolute here.
|
|
|
|
if (target.POSITION !== undefined) {
|
|
|
|
let positionAttribute = morphPositions[i];
|
|
positionAttribute.name = attributeName;
|
|
|
|
let 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) {
|
|
|
|
// see target.POSITION's comment
|
|
|
|
if (target.NORMAL !== undefined) {
|
|
|
|
let normalAttribute = morphNormals[i];
|
|
normalAttribute.name = attributeName;
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {THREE.Mesh} mesh
|
|
* @param {GLTF.Mesh} meshDef
|
|
*/
|
|
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];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// .extras has user-defined data, so check that .extras.targetNames is an array.
|
|
if (meshDef.extras && Array.isArray(meshDef.extras.targetNames)) {
|
|
|
|
let 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) {
|
|
|
|
let dracoExtension = primitiveDef.extensions &&
|
|
primitiveDef.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION];
|
|
let 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) {
|
|
|
|
let attributesKey = '';
|
|
|
|
let keys = Object.keys(attributes).sort();
|
|
|
|
for (let i = 0, il = keys.length; i < il; i++) {
|
|
|
|
attributesKey += keys[i] + ':' + attributes[keys[i]] + ';';
|
|
|
|
}
|
|
|
|
return attributesKey;
|
|
|
|
}
|
|
|
|
function cloneBufferAttribute(attribute) {
|
|
|
|
if (attribute.isInterleavedBufferAttribute) {
|
|
|
|
let count = attribute.count;
|
|
let itemSize = attribute.itemSize;
|
|
let array = attribute.array.slice(0, count * itemSize);
|
|
|
|
for (let 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();
|
|
|
|
}
|
|
|
|
/* GLTF PARSER */
|
|
|
|
function GLTFParser(json, extensions, options) {
|
|
|
|
this.json = json || {};
|
|
this.extensions = extensions || {};
|
|
this.options = options || {};
|
|
|
|
// loader object cache
|
|
this.cache = new GLTFRegistry();
|
|
|
|
// BufferGeometry caching
|
|
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');
|
|
|
|
if (this.options.crossOrigin === 'use-credentials') {
|
|
|
|
this.fileLoader.setWithCredentials(true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
GLTFParser.prototype.parse = function (onLoad, onError) {
|
|
|
|
let parser = this;
|
|
let json = this.json;
|
|
let extensions = this.extensions;
|
|
|
|
// Clear the loader cache
|
|
this.cache.removeAll();
|
|
|
|
// Mark the special nodes/meshes in json for efficient parse
|
|
this.markDefs();
|
|
|
|
Promise.all([
|
|
|
|
this.getDependencies('scene'),
|
|
this.getDependencies('animation'),
|
|
this.getDependencies('camera'),
|
|
|
|
]).then(function (dependencies) {
|
|
|
|
let 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);
|
|
|
|
};
|
|
|
|
/**
|
|
* Marks the special nodes/meshes in json for efficient parse.
|
|
*/
|
|
GLTFParser.prototype.markDefs = function () {
|
|
|
|
let nodeDefs = this.json.nodes || [];
|
|
let skinDefs = this.json.skins || [];
|
|
let meshDefs = this.json.meshes || [];
|
|
|
|
let meshReferences = {};
|
|
let meshUses = {};
|
|
|
|
// Nothing in the node definition indicates whether it is a Bone or an
|
|
// Object3D. Use the skins' joint references to mark bones.
|
|
for (let skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex++) {
|
|
|
|
let joints = skinDefs[skinIndex].joints;
|
|
|
|
for (let i = 0, il = joints.length; i < il; i++) {
|
|
|
|
nodeDefs[joints[i]].isBone = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Meshes can (and should) be reused by multiple nodes in a glTF asset. To
|
|
// avoid having more than one THREE.Mesh with the same name, count
|
|
// references and rename instances below.
|
|
//
|
|
// Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
|
|
for (let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
|
|
|
|
let nodeDef = nodeDefs[nodeIndex];
|
|
|
|
if (nodeDef.mesh !== undefined) {
|
|
|
|
if (meshReferences[nodeDef.mesh] === undefined) {
|
|
|
|
meshReferences[nodeDef.mesh] = meshUses[nodeDef.mesh] = 0;
|
|
|
|
}
|
|
|
|
meshReferences[nodeDef.mesh]++;
|
|
|
|
// Nothing in the mesh definition indicates whether it is
|
|
// a SkinnedMesh or Mesh. Use the node's mesh reference
|
|
// to mark SkinnedMesh if node has skin.
|
|
if (nodeDef.skin !== undefined) {
|
|
|
|
meshDefs[nodeDef.mesh].isSkinnedMesh = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
this.json.meshReferences = meshReferences;
|
|
this.json.meshUses = meshUses;
|
|
|
|
};
|
|
|
|
/**
|
|
* Requests the specified dependency asynchronously, with caching.
|
|
* @param {string} type
|
|
* @param {number} index
|
|
* @return {Promise<THREE.Object3D|THREE.Material|THREE.Texture|THREE.AnimationClip|ArrayBuffer|Object>}
|
|
*/
|
|
GLTFParser.prototype.getDependency = function (type, index) {
|
|
|
|
let cacheKey = type + ':' + index;
|
|
let 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;
|
|
|
|
};
|
|
|
|
/**
|
|
* Requests all dependencies of the specified type asynchronously, with caching.
|
|
* @param {string} type
|
|
* @return {Promise<Array<Object>>}
|
|
*/
|
|
GLTFParser.prototype.getDependencies = function (type) {
|
|
|
|
let dependencies = this.cache.get(type);
|
|
|
|
if (!dependencies) {
|
|
|
|
let parser = this;
|
|
let 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;
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
|
|
* @param {number} bufferIndex
|
|
* @return {Promise<ArrayBuffer>}
|
|
*/
|
|
GLTFParser.prototype.loadBuffer = function (bufferIndex) {
|
|
|
|
let bufferDef = this.json.buffers[bufferIndex];
|
|
let loader = this.fileLoader;
|
|
|
|
if (bufferDef.type && bufferDef.type !== 'arraybuffer') {
|
|
|
|
throw new Error('THREE.GLTFLoader: ' +
|
|
bufferDef.type + ' buffer type is not supported.');
|
|
|
|
}
|
|
|
|
// If present, GLB container is required to be the first buffer.
|
|
if (bufferDef.uri === undefined && bufferIndex === 0) {
|
|
|
|
return Promise.resolve(this.extensions[EXTENSIONS.KHR_BINARY_GLTF].body);
|
|
|
|
}
|
|
|
|
let 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 + '".'));
|
|
|
|
});
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
|
|
* @param {number} bufferViewIndex
|
|
* @return {Promise<ArrayBuffer>}
|
|
*/
|
|
GLTFParser.prototype.loadBufferView = function (bufferViewIndex) {
|
|
|
|
let bufferViewDef = this.json.bufferViews[bufferViewIndex];
|
|
|
|
return this.getDependency('buffer', bufferViewDef.buffer)
|
|
.then(function (buffer) {
|
|
|
|
let byteLength = bufferViewDef.byteLength || 0;
|
|
let byteOffset = bufferViewDef.byteOffset || 0;
|
|
return buffer.slice(byteOffset, byteOffset + byteLength);
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
|
|
* @param {number} accessorIndex
|
|
* @return {Promise<THREE.BufferAttribute|THREE.InterleavedBufferAttribute>}
|
|
*/
|
|
GLTFParser.prototype.loadAccessor = function (accessorIndex) {
|
|
|
|
let parser = this;
|
|
let json = this.json;
|
|
|
|
let accessorDef = this.json.accessors[accessorIndex];
|
|
|
|
if (accessorDef.bufferView === undefined &&
|
|
accessorDef.sparse === undefined) {
|
|
|
|
// Ignore empty accessors, which may be used to declare runtime
|
|
// information about attributes coming from another source (e.g. Draco
|
|
// compression extension).
|
|
return Promise.resolve(null);
|
|
|
|
}
|
|
|
|
let 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) {
|
|
|
|
let bufferView = bufferViews[0];
|
|
|
|
let itemSize = WEBGL_TYPE_SIZES[accessorDef.type];
|
|
let TypedArray = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
|
|
|
|
// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
|
|
let elementBytes = TypedArray.BYTES_PER_ELEMENT;
|
|
let itemBytes = elementBytes * itemSize;
|
|
let byteOffset = accessorDef.byteOffset || 0;
|
|
let byteStride = accessorDef.bufferView !==
|
|
undefined ? json.bufferViews[accessorDef.bufferView].byteStride : undefined;
|
|
let normalized = accessorDef.normalized === true;
|
|
let array;
|
|
let bufferAttribute;
|
|
|
|
// The buffer is not interleaved if the stride is the item size in bytes.
|
|
if (byteStride && byteStride !== itemBytes) {
|
|
|
|
// Each "slice" of the buffer, as defined by 'count' elements of 'byteStride' bytes, gets its own InterleavedBuffer
|
|
// This makes sure that IBA.count reflects accessor.count properly
|
|
let ibSlice = Math.floor(byteOffset / byteStride);
|
|
let ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView +
|
|
':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
|
|
let ib = parser.cache.get(ibCacheKey);
|
|
|
|
if (!ib) {
|
|
|
|
array = new TypedArray(bufferView, ibSlice * byteStride,
|
|
accessorDef.count * byteStride / elementBytes);
|
|
|
|
// Integer parameters to IB/IBA are in array elements, not bytes.
|
|
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);
|
|
|
|
}
|
|
|
|
// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
|
|
if (accessorDef.sparse !== undefined) {
|
|
|
|
let itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
|
|
let TypedArrayIndices =
|
|
WEBGL_COMPONENT_TYPES[accessorDef.sparse.indices.componentType];
|
|
|
|
let byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
|
|
let byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
|
|
|
|
let sparseIndices = new TypedArrayIndices(bufferViews[1],
|
|
byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices);
|
|
let sparseValues = new TypedArray(bufferViews[2],
|
|
byteOffsetValues, accessorDef.sparse.count * itemSize);
|
|
|
|
if (bufferView !== null) {
|
|
|
|
// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
|
|
bufferAttribute.setArray(bufferAttribute.array.slice());
|
|
|
|
}
|
|
|
|
for (let i = 0, il = sparseIndices.length; i < il; i++) {
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
|
|
* @param {number} textureIndex
|
|
* @return {Promise<THREE.Texture>}
|
|
*/
|
|
GLTFParser.prototype.loadTexture = function (textureIndex) {
|
|
|
|
let parser = this;
|
|
let json = this.json;
|
|
let options = this.options;
|
|
let textureLoader = this.textureLoader;
|
|
|
|
// var URL = window.URL || window.webkitURL;
|
|
|
|
let URL = {};
|
|
|
|
let textureDef = json.textures[textureIndex];
|
|
|
|
let textureExtensions = textureDef.extensions || {};
|
|
|
|
let source;
|
|
|
|
if (textureExtensions[EXTENSIONS.MSFT_TEXTURE_DDS]) {
|
|
|
|
source = json.images[textureExtensions[EXTENSIONS.MSFT_TEXTURE_DDS].source];
|
|
|
|
} else {
|
|
|
|
source = json.images[textureDef.source];
|
|
|
|
}
|
|
|
|
let sourceURI = source.uri;
|
|
let isObjectURL = false;
|
|
|
|
if (source.bufferView !== undefined) {
|
|
|
|
// Load binary image data from bufferView, if provided.
|
|
|
|
sourceURI = parser.getDependency('bufferView', source.bufferView)
|
|
.then(function (bufferView) {
|
|
|
|
isObjectURL = true;
|
|
let blob = new Blob([bufferView], {
|
|
type: source.mimeType,
|
|
});
|
|
sourceURI = URL.createObjectURL(blob);
|
|
return sourceURI;
|
|
|
|
});
|
|
|
|
}
|
|
|
|
return Promise.resolve(sourceURI).then(function (sourceURI) {
|
|
|
|
// Load Texture resource.
|
|
|
|
let 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) {
|
|
|
|
// Clean up resources and configure Texture.
|
|
|
|
if (isObjectURL === true) {
|
|
|
|
URL.revokeObjectURL(sourceURI);
|
|
|
|
}
|
|
|
|
texture.flipY = false;
|
|
|
|
if (textureDef.name !== undefined) {
|
|
texture.name = textureDef.name;
|
|
}
|
|
|
|
// Ignore unknown mime types, like DDS files.
|
|
if (source.mimeType in MIME_TYPE_FORMATS) {
|
|
|
|
texture.format = MIME_TYPE_FORMATS[source.mimeType];
|
|
|
|
}
|
|
|
|
let samplers = json.samplers || {};
|
|
let 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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Asynchronously assigns a texture to the given material parameters.
|
|
* @param {Object} materialParams
|
|
* @param {string} mapName
|
|
* @param {Object} mapDef
|
|
* @return {Promise}
|
|
*/
|
|
GLTFParser.prototype.assignTexture =
|
|
function (materialParams, mapName, mapDef) {
|
|
|
|
let 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]) {
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Assigns final material to a Mesh, Line, or Points instance. The instance
|
|
* already has a material (generated from the glTF material options alone)
|
|
* but reuse of the same glTF material may require multiple threejs materials
|
|
* to accomodate different primitive types, defines, etc. New materials will
|
|
* be created if necessary, and reused from a cache.
|
|
* @param {THREE.Object3D} mesh Mesh, Line, or Points instance.
|
|
*/
|
|
GLTFParser.prototype.assignFinalMaterial = function (mesh) {
|
|
|
|
let geometry = mesh.geometry;
|
|
let material = mesh.material;
|
|
let extensions = this.extensions;
|
|
|
|
let useVertexTangents = geometry.attributes.tangent !== undefined;
|
|
let useVertexColors = geometry.attributes.color !== undefined;
|
|
let useFlatShading = geometry.attributes.normal === undefined;
|
|
let useSkinning = mesh.isSkinnedMesh === true;
|
|
let useMorphTargets = Object.keys(geometry.morphAttributes).length > 0;
|
|
let useMorphNormals = useMorphTargets &&
|
|
geometry.morphAttributes.normal !== undefined;
|
|
|
|
if (mesh.isPoints) {
|
|
|
|
var cacheKey = 'PointsMaterial:' + material.uuid;
|
|
|
|
let 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 doesn't support lights yet
|
|
pointsMaterial.sizeAttenuation = false; // glTF spec says points should be 1px
|
|
|
|
this.cache.add(cacheKey, pointsMaterial);
|
|
|
|
}
|
|
|
|
material = pointsMaterial;
|
|
|
|
} else if (mesh.isLine) {
|
|
|
|
var cacheKey = 'LineBasicMaterial:' + material.uuid;
|
|
|
|
let 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; // LineBasicMaterial doesn't support lights yet
|
|
|
|
this.cache.add(cacheKey, lineMaterial);
|
|
|
|
}
|
|
|
|
material = lineMaterial;
|
|
|
|
}
|
|
|
|
// Clone the material if it will be modified
|
|
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:';
|
|
}
|
|
|
|
let 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;
|
|
|
|
}
|
|
|
|
// workarounds for mesh and geometry
|
|
|
|
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) {
|
|
|
|
// for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update
|
|
mesh.onBeforeRender = extensions[
|
|
EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS].refreshUniforms;
|
|
|
|
}
|
|
|
|
mesh.material = material;
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
|
|
* @param {number} materialIndex
|
|
* @return {Promise<THREE.Material>}
|
|
*/
|
|
GLTFParser.prototype.loadMaterial = function (materialIndex) {
|
|
|
|
let parser = this;
|
|
let json = this.json;
|
|
let extensions = this.extensions;
|
|
let materialDef = json.materials[materialIndex];
|
|
|
|
let materialType;
|
|
let materialParams = {};
|
|
let materialExtensions = materialDef.extensions || {};
|
|
|
|
let pending = [];
|
|
|
|
if (materialExtensions[EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS]) {
|
|
|
|
let 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]) {
|
|
|
|
let kmuExtension = extensions[EXTENSIONS.KHR_MATERIALS_UNLIT];
|
|
materialType = kmuExtension.getMaterialType();
|
|
pending.push(kmuExtension.extendParams(materialParams, materialDef, parser));
|
|
|
|
} else {
|
|
|
|
// Specification:
|
|
// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
|
|
|
|
materialType = THREE.MeshStandardMaterial;
|
|
|
|
let metallicRoughness = materialDef.pbrMetallicRoughness || {};
|
|
|
|
materialParams.color = new THREE.Color(1.0, 1.0, 1.0);
|
|
materialParams.opacity = 1.0;
|
|
|
|
if (Array.isArray(metallicRoughness.baseColorFactor)) {
|
|
|
|
let 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;
|
|
|
|
}
|
|
|
|
let 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 () {
|
|
|
|
let 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;
|
|
}
|
|
|
|
// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
|
|
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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* @param {THREE.BufferGeometry} geometry
|
|
* @param {GLTF.Primitive} primitiveDef
|
|
* @param {GLTFParser} parser
|
|
* @return {Promise<THREE.BufferGeometry>}
|
|
*/
|
|
function addPrimitiveAttributes(geometry, primitiveDef, parser) {
|
|
|
|
let attributes = primitiveDef.attributes;
|
|
|
|
let pending = [];
|
|
|
|
function assignAttributeAccessor(accessorIndex, attributeName) {
|
|
|
|
return parser.getDependency('accessor', accessorIndex)
|
|
.then(function (accessor) {
|
|
|
|
geometry.addAttribute(attributeName, accessor);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
for (let gltfAttributeName in attributes) {
|
|
|
|
let threeAttributeName = ATTRIBUTES[gltfAttributeName] ||
|
|
gltfAttributeName.toLowerCase();
|
|
|
|
// Skip attributes already provided by e.g. Draco extension.
|
|
if (threeAttributeName in geometry.attributes) {
|
|
continue;
|
|
}
|
|
|
|
pending.push(assignAttributeAccessor(attributes[gltfAttributeName],
|
|
threeAttributeName));
|
|
|
|
}
|
|
|
|
if (primitiveDef.indices !== undefined && !geometry.index) {
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
}
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
|
|
*
|
|
* Creates BufferGeometries from primitives.
|
|
*
|
|
* @param {Array<GLTF.Primitive>} primitives
|
|
* @return {Promise<Array<THREE.BufferGeometry>>}
|
|
*/
|
|
GLTFParser.prototype.loadGeometries = function (primitives) {
|
|
|
|
let parser = this;
|
|
let extensions = this.extensions;
|
|
let cache = this.primitiveCache;
|
|
|
|
function createDracoPrimitive(primitive) {
|
|
|
|
return extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION]
|
|
.decodePrimitive(primitive, parser)
|
|
.then(function (geometry) {
|
|
|
|
return addPrimitiveAttributes(geometry, primitive, parser);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
let pending = [];
|
|
|
|
for (let i = 0, il = primitives.length; i < il; i++) {
|
|
|
|
let primitive = primitives[i];
|
|
let cacheKey = createPrimitiveKey(primitive);
|
|
|
|
// See if we've already created this geometry
|
|
let cached = cache[cacheKey];
|
|
|
|
if (cached) {
|
|
|
|
// Use the cached geometry if it exists
|
|
pending.push(cached.promise);
|
|
|
|
} else {
|
|
|
|
var geometryPromise;
|
|
|
|
if (primitive.extensions &&
|
|
primitive.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION]) {
|
|
|
|
// Use DRACO geometry if available
|
|
geometryPromise = createDracoPrimitive(primitive);
|
|
|
|
} else {
|
|
|
|
// Otherwise create a new geometry
|
|
geometryPromise = addPrimitiveAttributes(new THREE.BufferGeometry(),
|
|
primitive, parser);
|
|
|
|
}
|
|
|
|
// Cache this geometry
|
|
cache[cacheKey] = {
|
|
primitive: primitive,
|
|
promise: geometryPromise,
|
|
};
|
|
|
|
pending.push(geometryPromise);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return Promise.all(pending);
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
|
|
* @param {number} meshIndex
|
|
* @return {Promise<THREE.Group|THREE.Mesh|THREE.SkinnedMesh>}
|
|
*/
|
|
GLTFParser.prototype.loadMesh = function (meshIndex) {
|
|
|
|
let parser = this;
|
|
let json = this.json;
|
|
|
|
let meshDef = json.meshes[meshIndex];
|
|
let primitives = meshDef.primitives;
|
|
|
|
let pending = [];
|
|
|
|
for (let i = 0, il = primitives.length; i < il; i++) {
|
|
|
|
let 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) {
|
|
|
|
let meshes = [];
|
|
|
|
for (var i = 0, il = geometries.length; i < il; i++) {
|
|
|
|
let geometry = geometries[i];
|
|
let primitive = primitives[i];
|
|
|
|
// 1. create Mesh
|
|
|
|
var mesh;
|
|
|
|
let material = originalMaterials[i];
|
|
|
|
if (primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||
|
|
primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||
|
|
primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||
|
|
primitive.mode === undefined) {
|
|
|
|
// .isSkinnedMesh isn't in glTF spec. See .markDefs()
|
|
mesh = meshDef.isSkinnedMesh === true ?
|
|
new THREE.SkinnedMesh(geometry, material) :
|
|
new THREE.Mesh(geometry, material);
|
|
|
|
if (mesh.isSkinnedMesh === true && !mesh.geometry.attributes.skinWeight.normalized) {
|
|
|
|
// we normalize floating point skin weight array to fix malformed assets (see #15319)
|
|
// it's important to skip this for non-float32 data since normalizeSkinWeights assumes non-normalized inputs
|
|
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];
|
|
|
|
}
|
|
|
|
let group = new THREE.Group();
|
|
|
|
for (var i = 0, il = meshes.length; i < il; i++) {
|
|
|
|
group.add(meshes[i]);
|
|
|
|
}
|
|
|
|
return group;
|
|
|
|
});
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
|
|
* @param {number} cameraIndex
|
|
* @return {Promise<THREE.Camera>}
|
|
*/
|
|
GLTFParser.prototype.loadCamera = function (cameraIndex) {
|
|
|
|
let camera;
|
|
let cameraDef = this.json.cameras[cameraIndex];
|
|
let 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);
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
|
|
* @param {number} skinIndex
|
|
* @return {Promise<Object>}
|
|
*/
|
|
GLTFParser.prototype.loadSkin = function (skinIndex) {
|
|
|
|
let skinDef = this.json.skins[skinIndex];
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
|
|
* @param {number} animationIndex
|
|
* @return {Promise<THREE.AnimationClip>}
|
|
*/
|
|
GLTFParser.prototype.loadAnimation = function (animationIndex) {
|
|
|
|
let json = this.json;
|
|
|
|
let animationDef = json.animations[animationIndex];
|
|
|
|
let pendingNodes = [];
|
|
let pendingInputAccessors = [];
|
|
let pendingOutputAccessors = [];
|
|
let pendingSamplers = [];
|
|
let pendingTargets = [];
|
|
|
|
for (let i = 0, il = animationDef.channels.length; i < il; i++) {
|
|
|
|
let channel = animationDef.channels[i];
|
|
let sampler = animationDef.samplers[channel.sampler];
|
|
let target = channel.target;
|
|
let name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
|
|
let input = animationDef.parameters !==
|
|
undefined ? animationDef.parameters[sampler.input] : sampler.input;
|
|
let 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) {
|
|
|
|
let nodes = dependencies[0];
|
|
let inputAccessors = dependencies[1];
|
|
let outputAccessors = dependencies[2];
|
|
let samplers = dependencies[3];
|
|
let targets = dependencies[4];
|
|
|
|
let tracks = [];
|
|
|
|
for (let i = 0, il = nodes.length; i < il; i++) {
|
|
|
|
let node = nodes[i];
|
|
let inputAccessor = inputAccessors[i];
|
|
let outputAccessor = outputAccessors[i];
|
|
let sampler = samplers[i];
|
|
let 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;
|
|
|
|
}
|
|
|
|
let targetName = node.name ? node.name : node.uuid;
|
|
|
|
let interpolation = sampler.interpolation !==
|
|
undefined ? INTERPOLATION[sampler.interpolation] : THREE.InterpolateLinear;
|
|
|
|
var targetNames = [];
|
|
|
|
if (PATH_PROPERTIES[target.path] === PATH_PROPERTIES.weights) {
|
|
|
|
// Node may be a THREE.Group (glTF mesh with several primitives) or a THREE.Mesh.
|
|
node.traverse(function (object) {
|
|
|
|
if (object.isMesh === true && object.morphTargetInfluences) {
|
|
|
|
targetNames.push(object.name ? object.name : object.uuid);
|
|
|
|
}
|
|
|
|
});
|
|
|
|
} else {
|
|
|
|
targetNames.push(targetName);
|
|
|
|
}
|
|
|
|
let 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.');
|
|
|
|
}
|
|
|
|
let 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++) {
|
|
|
|
let track = new TypedKeyframeTrack(
|
|
targetNames[j] + '.' + PATH_PROPERTIES[target.path],
|
|
inputAccessor.array,
|
|
outputArray,
|
|
interpolation
|
|
);
|
|
|
|
// Override interpolation with custom factory method.
|
|
if (sampler.interpolation === 'CUBICSPLINE') {
|
|
|
|
track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline(result) {
|
|
|
|
// A CUBICSPLINE keyframe in glTF has three output values for each input value,
|
|
// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
|
|
// must be divided by three to get the interpolant's sampleSize argument.
|
|
|
|
return new GLTFCubicSplineInterpolant(this.times, this.values,
|
|
this.getValueSize() / 3, result);
|
|
|
|
};
|
|
|
|
// Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.
|
|
track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
|
|
|
|
}
|
|
|
|
tracks.push(track);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
let name = animationDef.name !==
|
|
undefined ? animationDef.name : 'animation_' + animationIndex;
|
|
|
|
return new THREE.AnimationClip(name, undefined, tracks);
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
|
|
* @param {number} nodeIndex
|
|
* @return {Promise<THREE.Object3D>}
|
|
*/
|
|
GLTFParser.prototype.loadNode = function (nodeIndex) {
|
|
|
|
let json = this.json;
|
|
let extensions = this.extensions;
|
|
let parser = this;
|
|
|
|
let meshReferences = json.meshReferences;
|
|
let meshUses = json.meshUses;
|
|
|
|
let nodeDef = json.nodes[nodeIndex];
|
|
|
|
return (function () {
|
|
|
|
let pending = [];
|
|
|
|
if (nodeDef.mesh !== undefined) {
|
|
|
|
pending.push(parser.getDependency('mesh', nodeDef.mesh).then(function (mesh) {
|
|
|
|
let node;
|
|
|
|
if (meshReferences[nodeDef.mesh] > 1) {
|
|
|
|
let instanceNum = meshUses[nodeDef.mesh]++;
|
|
|
|
node = mesh.clone();
|
|
node.name += '_instance_' + instanceNum;
|
|
|
|
// onBeforeRender copy for Specular-Glossiness
|
|
node.onBeforeRender = mesh.onBeforeRender;
|
|
|
|
for (let 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 weights are provided on the node, override weights on the mesh.
|
|
if (nodeDef.weights !== undefined) {
|
|
|
|
node.traverse(function (o) {
|
|
|
|
if (!o.isMesh) {
|
|
return;
|
|
}
|
|
|
|
for (let 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) {
|
|
|
|
let node;
|
|
|
|
// .isBone isn't in glTF spec. See .markDefs
|
|
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 (let 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) {
|
|
|
|
let 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;
|
|
|
|
});
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
|
|
* @param {number} sceneIndex
|
|
* @return {Promise<THREE.Scene>}
|
|
*/
|
|
GLTFParser.prototype.loadScene = (function () {
|
|
|
|
// scene node hierachy builder
|
|
|
|
function buildNodeHierachy(nodeId, parentObject, json, parser) {
|
|
|
|
let nodeDef = json.nodes[nodeId];
|
|
|
|
return parser.getDependency('node', nodeId).then(function (node) {
|
|
|
|
if (nodeDef.skin === undefined) {
|
|
return node;
|
|
}
|
|
|
|
// build skeleton here as well
|
|
|
|
let skinEntry;
|
|
|
|
return parser.getDependency('skin', nodeDef.skin).then(function (skin) {
|
|
|
|
skinEntry = skin;
|
|
|
|
let pendingJoints = [];
|
|
|
|
for (let 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;
|
|
}
|
|
|
|
let bones = [];
|
|
let boneInverses = [];
|
|
|
|
for (let j = 0, jl = jointNodes.length; j < jl; j++) {
|
|
|
|
let jointNode = jointNodes[j];
|
|
|
|
if (jointNode) {
|
|
|
|
bones.push(jointNode);
|
|
|
|
let 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) {
|
|
|
|
// build node hierachy
|
|
|
|
parentObject.add(node);
|
|
|
|
let pending = [];
|
|
|
|
if (nodeDef.children) {
|
|
|
|
let children = nodeDef.children;
|
|
|
|
for (let i = 0, il = children.length; i < il; i++) {
|
|
|
|
let child = children[i];
|
|
pending.push(buildNodeHierachy(child, node, json, parser));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return Promise.all(pending);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
return function loadScene(sceneIndex) {
|
|
|
|
let json = this.json;
|
|
let extensions = this.extensions;
|
|
let sceneDef = this.json.scenes[sceneIndex];
|
|
let parser = this;
|
|
|
|
let scene = new THREE.Scene();
|
|
if (sceneDef.name !== undefined) {
|
|
scene.name = sceneDef.name;
|
|
}
|
|
|
|
assignExtrasToUserData(scene, sceneDef);
|
|
|
|
if (sceneDef.extensions) {
|
|
addUnknownExtensionsToUserData(extensions, scene, sceneDef);
|
|
}
|
|
|
|
let nodeIds = sceneDef.nodes || [];
|
|
|
|
let pending = [];
|
|
|
|
for (let 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;
|
|
|
|
})();
|
|
}
|