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3769 lines
91 KiB
JavaScript
3769 lines
91 KiB
JavaScript
import {
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AnimationClip,
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Bone,
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Box3,
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BufferAttribute,
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BufferGeometry,
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CanvasTexture,
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ClampToEdgeWrapping,
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Color,
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DirectionalLight,
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DoubleSide,
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FileLoader,
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FrontSide,
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Group,
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ImageBitmapLoader,
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InterleavedBuffer,
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InterleavedBufferAttribute,
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Interpolant,
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InterpolateDiscrete,
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InterpolateLinear,
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Line,
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LineBasicMaterial,
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LineLoop,
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LineSegments,
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LinearFilter,
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LinearMipmapLinearFilter,
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LinearMipmapNearestFilter,
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Loader,
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LoaderUtils,
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Material,
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MathUtils,
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Matrix4,
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Mesh,
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MeshBasicMaterial,
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MeshPhysicalMaterial,
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MeshStandardMaterial,
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MirroredRepeatWrapping,
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NearestFilter,
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NearestMipmapLinearFilter,
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NearestMipmapNearestFilter,
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NumberKeyframeTrack,
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Object3D,
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OrthographicCamera,
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PerspectiveCamera,
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PointLight,
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Points,
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PointsMaterial,
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PropertyBinding,
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QuaternionKeyframeTrack,
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RGBFormat,
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RepeatWrapping,
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Skeleton,
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SkinnedMesh,
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Sphere,
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SpotLight,
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TangentSpaceNormalMap,
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TextureLoader,
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TriangleFanDrawMode,
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TriangleStripDrawMode,
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Vector2,
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Vector3,
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VectorKeyframeTrack,
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sRGBEncoding
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} from "./js/three/build/three.module.js";
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var GLTFLoader = ( function () {
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function GLTFLoader( manager ) {
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Loader.call( this, manager );
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this.dracoLoader = null;
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this.ddsLoader = null;
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this.ktx2Loader = null;
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this.pluginCallbacks = [];
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this.register( function ( parser ) {
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return new GLTFMaterialsClearcoatExtension( parser );
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} );
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this.register( function ( parser ) {
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return new GLTFTextureBasisUExtension( parser );
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} );
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this.register( function ( parser ) {
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return new GLTFMaterialsTransmissionExtension( parser );
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} );
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this.register( function ( parser ) {
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return new GLTFLightsExtension( parser );
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} );
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}
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GLTFLoader.prototype = Object.assign( Object.create( Loader.prototype ), {
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constructor: GLTFLoader,
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load: function ( url, onLoad, onProgress, onError ) {
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var scope = this;
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var resourcePath;
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if ( this.resourcePath !== '' ) {
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resourcePath = this.resourcePath;
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} else if ( this.path !== '' ) {
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resourcePath = this.path;
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} else {
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resourcePath = 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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this.manager.itemStart( url );
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var _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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var loader = new FileLoader( this.manager );
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loader.setPath( this.path );
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loader.setResponseType( 'arraybuffer' );
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loader.setRequestHeader( this.requestHeader );
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loader.setWithCredentials( this.withCredentials );
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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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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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setKTX2Loader: function ( ktx2Loader ) {
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this.ktx2Loader = ktx2Loader;
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return this;
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},
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register: function ( callback ) {
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if ( this.pluginCallbacks.indexOf( callback ) === - 1 ) {
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this.pluginCallbacks.push( callback );
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}
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return this;
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},
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unregister: function ( callback ) {
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if ( this.pluginCallbacks.indexOf( callback ) !== - 1 ) {
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this.pluginCallbacks.splice( this.pluginCallbacks.indexOf( callback ), 1 );
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}
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return this;
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},
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parse: function ( data, path, onLoad, onError ) {
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var content;
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var extensions = {};
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var plugins = {};
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if ( typeof data === 'string' ) {
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content = data;
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} else {
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var magic = LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );
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if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
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try {
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extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
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} catch ( error ) {
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if ( onError ) onError( error );
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return;
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}
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content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
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} else {
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content = LoaderUtils.decodeText( new Uint8Array( data ) );
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}
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}
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var json = JSON.parse( content );
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if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
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if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported.' ) );
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return;
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}
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var parser = new GLTFParser( json, {
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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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ktx2Loader: this.ktx2Loader
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} );
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parser.fileLoader.setRequestHeader( this.requestHeader );
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for ( var i = 0; i < this.pluginCallbacks.length; i ++ ) {
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var plugin = this.pluginCallbacks[ i ]( parser );
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plugins[ plugin.name ] = plugin;
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// Workaround to avoid determining as unknown extension
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// in addUnknownExtensionsToUserData().
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// Remove this workaround if we move all the existing
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// extension handlers to plugin system
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extensions[ plugin.name ] = true;
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}
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if ( json.extensionsUsed ) {
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for ( var i = 0; i < json.extensionsUsed.length; ++ i ) {
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var extensionName = json.extensionsUsed[ i ];
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var extensionsRequired = json.extensionsRequired || [];
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switch ( extensionName ) {
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case EXTENSIONS.KHR_MATERIALS_UNLIT:
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extensions[ extensionName ] = new GLTFMaterialsUnlitExtension();
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break;
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case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
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extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension();
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break;
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case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
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extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader );
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break;
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case EXTENSIONS.MSFT_TEXTURE_DDS:
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extensions[ extensionName ] = new GLTFTextureDDSExtension( this.ddsLoader );
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break;
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case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
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extensions[ extensionName ] = new GLTFTextureTransformExtension();
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break;
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case EXTENSIONS.KHR_MESH_QUANTIZATION:
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extensions[ extensionName ] = new GLTFMeshQuantizationExtension();
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break;
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default:
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if ( extensionsRequired.indexOf( extensionName ) >= 0 && plugins[ extensionName ] === undefined ) {
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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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parser.setExtensions( extensions );
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parser.setPlugins( plugins );
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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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var objects = {};
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return {
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get: function ( key ) {
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return objects[ key ];
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},
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add: function ( key, object ) {
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objects[ key ] = object;
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},
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remove: function ( key ) {
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delete objects[ key ];
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},
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removeAll: function () {
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objects = {};
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}
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};
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}
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/*********************************/
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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_CLEARCOAT: 'KHR_materials_clearcoat',
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KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
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KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
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KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
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KHR_TEXTURE_BASISU: 'KHR_texture_basisu',
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KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
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KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization',
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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: 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 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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* Punctual Lights Extension
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*
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* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
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*/
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function GLTFLightsExtension( parser ) {
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this.parser = parser;
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this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
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// Object3D instance caches
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this.cache = { refs: {}, uses: {} };
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}
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GLTFLightsExtension.prototype._markDefs = function () {
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var parser = this.parser;
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var nodeDefs = this.parser.json.nodes || [];
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for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
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var nodeDef = nodeDefs[ nodeIndex ];
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if ( nodeDef.extensions
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&& nodeDef.extensions[ this.name ]
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&& nodeDef.extensions[ this.name ].light !== undefined ) {
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parser._addNodeRef( this.cache, nodeDef.extensions[ this.name ].light );
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}
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}
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};
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GLTFLightsExtension.prototype._loadLight = function ( lightIndex ) {
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var parser = this.parser;
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var cacheKey = 'light:' + lightIndex;
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var dependency = parser.cache.get( cacheKey );
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if ( dependency ) return dependency;
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var json = parser.json;
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var extensions = ( json.extensions && json.extensions[ this.name ] ) || {};
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var lightDefs = extensions.lights || [];
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var lightDef = lightDefs[ lightIndex ];
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var lightNode;
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var color = new Color( 0xffffff );
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if ( lightDef.color !== undefined ) color.fromArray( lightDef.color );
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var range = lightDef.range !== undefined ? lightDef.range : 0;
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switch ( lightDef.type ) {
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case 'directional':
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lightNode = new 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 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 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 !== undefined ? lightDef.spot.innerConeAngle : 0;
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lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
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lightNode.angle = lightDef.spot.outerConeAngle;
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lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
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lightNode.target.position.set( 0, 0, - 1 );
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lightNode.add( lightNode.target );
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break;
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default:
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throw new Error( 'THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".' );
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}
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// 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 ) lightNode.intensity = lightDef.intensity;
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lightNode.name = parser.createUniqueName( lightDef.name || ( 'light_' + lightIndex ) );
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dependency = Promise.resolve( lightNode );
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parser.cache.add( cacheKey, dependency );
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return dependency;
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};
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GLTFLightsExtension.prototype.createNodeAttachment = function ( nodeIndex ) {
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var self = this;
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var parser = this.parser;
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var json = parser.json;
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var nodeDef = json.nodes[ nodeIndex ];
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var lightDef = ( nodeDef.extensions && nodeDef.extensions[ this.name ] ) || {};
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var lightIndex = lightDef.light;
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if ( lightIndex === undefined ) return null;
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return this._loadLight( lightIndex ).then( function ( light ) {
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return parser._getNodeRef( self.cache, lightIndex, light );
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} );
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};
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|
|
/**
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* Unlit Materials Extension
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*
|
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* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit
|
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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 MeshBasicMaterial;
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};
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|
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GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, materialDef, parser ) {
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|
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var pending = [];
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materialParams.color = new Color( 1.0, 1.0, 1.0 );
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materialParams.opacity = 1.0;
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var metallicRoughness = materialDef.pbrMetallicRoughness;
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|
|
if ( metallicRoughness ) {
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if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
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|
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var array = metallicRoughness.baseColorFactor;
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|
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materialParams.color.fromArray( array );
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materialParams.opacity = array[ 3 ];
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|
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}
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|
|
if ( metallicRoughness.baseColorTexture !== undefined ) {
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|
|
pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
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|
|
}
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|
|
}
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|
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return Promise.all( pending );
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|
|
};
|
|
|
|
/**
|
|
* Clearcoat Materials Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
|
|
*/
|
|
function GLTFMaterialsClearcoatExtension( parser ) {
|
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|
|
this.parser = parser;
|
|
this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
|
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|
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}
|
|
|
|
GLTFMaterialsClearcoatExtension.prototype.getMaterialType = function ( materialIndex ) {
|
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|
|
var parser = this.parser;
|
|
var materialDef = parser.json.materials[ materialIndex ];
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|
|
if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
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|
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return MeshPhysicalMaterial;
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|
|
};
|
|
|
|
GLTFMaterialsClearcoatExtension.prototype.extendMaterialParams = function ( materialIndex, materialParams ) {
|
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|
|
var parser = this.parser;
|
|
var materialDef = parser.json.materials[ materialIndex ];
|
|
|
|
if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
|
return Promise.resolve();
|
|
|
|
}
|
|
|
|
var pending = [];
|
|
|
|
var extension = materialDef.extensions[ this.name ];
|
|
|
|
if ( extension.clearcoatFactor !== undefined ) {
|
|
|
|
materialParams.clearcoat = extension.clearcoatFactor;
|
|
|
|
}
|
|
|
|
if ( extension.clearcoatTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'clearcoatMap', extension.clearcoatTexture ) );
|
|
|
|
}
|
|
|
|
if ( extension.clearcoatRoughnessFactor !== undefined ) {
|
|
|
|
materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
|
|
|
|
}
|
|
|
|
if ( extension.clearcoatRoughnessTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'clearcoatRoughnessMap', extension.clearcoatRoughnessTexture ) );
|
|
|
|
}
|
|
|
|
if ( extension.clearcoatNormalTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'clearcoatNormalMap', extension.clearcoatNormalTexture ) );
|
|
|
|
if ( extension.clearcoatNormalTexture.scale !== undefined ) {
|
|
|
|
var scale = extension.clearcoatNormalTexture.scale;
|
|
|
|
materialParams.clearcoatNormalScale = new Vector2( scale, scale );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return Promise.all( pending );
|
|
|
|
};
|
|
|
|
/**
|
|
* Transmission Materials Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
|
|
* Draft: https://github.com/KhronosGroup/glTF/pull/1698
|
|
*/
|
|
function GLTFMaterialsTransmissionExtension( parser ) {
|
|
|
|
this.parser = parser;
|
|
this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
|
|
|
|
}
|
|
|
|
GLTFMaterialsTransmissionExtension.prototype.getMaterialType = function ( materialIndex ) {
|
|
|
|
var parser = this.parser;
|
|
var materialDef = parser.json.materials[ materialIndex ];
|
|
|
|
if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
|
return MeshPhysicalMaterial;
|
|
|
|
};
|
|
|
|
GLTFMaterialsTransmissionExtension.prototype.extendMaterialParams = function ( materialIndex, materialParams ) {
|
|
|
|
var parser = this.parser;
|
|
var materialDef = parser.json.materials[ materialIndex ];
|
|
|
|
if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
|
return Promise.resolve();
|
|
|
|
}
|
|
|
|
var pending = [];
|
|
|
|
var extension = materialDef.extensions[ this.name ];
|
|
|
|
if ( extension.transmissionFactor !== undefined ) {
|
|
|
|
materialParams.transmission = extension.transmissionFactor;
|
|
|
|
}
|
|
|
|
if ( extension.transmissionTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'transmissionMap', extension.transmissionTexture ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pending );
|
|
|
|
};
|
|
|
|
/**
|
|
* BasisU Texture Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu
|
|
* (draft PR https://github.com/KhronosGroup/glTF/pull/1751)
|
|
*/
|
|
function GLTFTextureBasisUExtension( parser ) {
|
|
|
|
this.parser = parser;
|
|
this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
|
|
|
|
}
|
|
|
|
GLTFTextureBasisUExtension.prototype.loadTexture = function ( textureIndex ) {
|
|
|
|
var parser = this.parser;
|
|
var json = parser.json;
|
|
|
|
var textureDef = json.textures[ textureIndex ];
|
|
|
|
if ( ! textureDef.extensions || ! textureDef.extensions[ this.name ] ) {
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
var extension = textureDef.extensions[ this.name ];
|
|
var source = json.images[ extension.source ];
|
|
var loader = parser.options.ktx2Loader;
|
|
|
|
if ( ! loader ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures' );
|
|
|
|
}
|
|
|
|
return parser.loadTextureImage( textureIndex, source, loader );
|
|
|
|
};
|
|
|
|
/* BINARY EXTENSION */
|
|
var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
|
|
var BINARY_EXTENSION_HEADER_LENGTH = 12;
|
|
var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
|
|
|
|
function GLTFBinaryExtension( data ) {
|
|
|
|
this.name = EXTENSIONS.KHR_BINARY_GLTF;
|
|
this.content = null;
|
|
this.body = null;
|
|
|
|
var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
|
|
|
|
this.header = {
|
|
magic: LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),
|
|
version: headerView.getUint32( 4, true ),
|
|
length: headerView.getUint32( 8, true )
|
|
};
|
|
|
|
if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );
|
|
|
|
} else if ( this.header.version < 2.0 ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: Legacy binary file detected.' );
|
|
|
|
}
|
|
|
|
var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
|
|
var chunkIndex = 0;
|
|
|
|
while ( chunkIndex < chunkView.byteLength ) {
|
|
|
|
var chunkLength = chunkView.getUint32( chunkIndex, true );
|
|
chunkIndex += 4;
|
|
|
|
var chunkType = chunkView.getUint32( chunkIndex, true );
|
|
chunkIndex += 4;
|
|
|
|
if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
|
|
|
|
var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
|
|
this.content = LoaderUtils.decodeText( contentArray );
|
|
|
|
} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
|
|
|
|
var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
|
|
this.body = data.slice( byteOffset, byteOffset + chunkLength );
|
|
|
|
}
|
|
|
|
// Clients must ignore chunks with unknown types.
|
|
|
|
chunkIndex += chunkLength;
|
|
|
|
}
|
|
|
|
if ( this.content === null ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: JSON content not found.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* DRACO Mesh Compression Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_draco_mesh_compression
|
|
*/
|
|
function GLTFDracoMeshCompressionExtension( json, dracoLoader ) {
|
|
|
|
if ( ! dracoLoader ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' );
|
|
|
|
}
|
|
|
|
this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
|
|
this.json = json;
|
|
this.dracoLoader = dracoLoader;
|
|
this.dracoLoader.preload();
|
|
|
|
}
|
|
|
|
GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function ( primitive, parser ) {
|
|
|
|
var json = this.json;
|
|
var dracoLoader = this.dracoLoader;
|
|
var bufferViewIndex = primitive.extensions[ this.name ].bufferView;
|
|
var gltfAttributeMap = primitive.extensions[ this.name ].attributes;
|
|
var threeAttributeMap = {};
|
|
var attributeNormalizedMap = {};
|
|
var attributeTypeMap = {};
|
|
|
|
for ( var attributeName in gltfAttributeMap ) {
|
|
|
|
var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
|
|
|
|
threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ];
|
|
|
|
}
|
|
|
|
for ( attributeName in primitive.attributes ) {
|
|
|
|
var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
|
|
|
|
if ( gltfAttributeMap[ attributeName ] !== undefined ) {
|
|
|
|
var accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
|
|
var componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
|
|
|
|
attributeTypeMap[ threeAttributeName ] = componentType;
|
|
attributeNormalizedMap[ threeAttributeName ] = accessorDef.normalized === true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {
|
|
|
|
return new Promise( function ( resolve ) {
|
|
|
|
dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {
|
|
|
|
for ( var attributeName in geometry.attributes ) {
|
|
|
|
var attribute = geometry.attributes[ attributeName ];
|
|
var normalized = attributeNormalizedMap[ attributeName ];
|
|
|
|
if ( normalized !== undefined ) attribute.normalized = normalized;
|
|
|
|
}
|
|
|
|
resolve( geometry );
|
|
|
|
}, threeAttributeMap, attributeTypeMap );
|
|
|
|
} );
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Texture Transform Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform
|
|
*/
|
|
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
|
|
*/
|
|
|
|
/**
|
|
* A sub class of StandardMaterial with some of the functionality
|
|
* changed via the `onBeforeCompile` callback
|
|
* @pailhead
|
|
*/
|
|
|
|
function GLTFMeshStandardSGMaterial( params ) {
|
|
|
|
MeshStandardMaterial.call( this );
|
|
|
|
this.isGLTFSpecularGlossinessMaterial = true;
|
|
|
|
//various chunks that need replacing
|
|
var specularMapParsFragmentChunk = [
|
|
'#ifdef USE_SPECULARMAP',
|
|
' uniform sampler2D specularMap;',
|
|
'#endif'
|
|
].join( '\n' );
|
|
|
|
var glossinessMapParsFragmentChunk = [
|
|
'#ifdef USE_GLOSSINESSMAP',
|
|
' uniform sampler2D glossinessMap;',
|
|
'#endif'
|
|
].join( '\n' );
|
|
|
|
var specularMapFragmentChunk = [
|
|
'vec3 specularFactor = specular;',
|
|
'#ifdef USE_SPECULARMAP',
|
|
' vec4 texelSpecular = texture2D( specularMap, vUv );',
|
|
' texelSpecular = sRGBToLinear( texelSpecular );',
|
|
' // reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
|
|
' specularFactor *= texelSpecular.rgb;',
|
|
'#endif'
|
|
].join( '\n' );
|
|
|
|
var glossinessMapFragmentChunk = [
|
|
'float glossinessFactor = glossiness;',
|
|
'#ifdef USE_GLOSSINESSMAP',
|
|
' vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
|
|
' // reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
|
|
' glossinessFactor *= texelGlossiness.a;',
|
|
'#endif'
|
|
].join( '\n' );
|
|
|
|
var lightPhysicalFragmentChunk = [
|
|
'PhysicalMaterial material;',
|
|
'material.diffuseColor = diffuseColor.rgb * ( 1. - max( specularFactor.r, max( specularFactor.g, specularFactor.b ) ) );',
|
|
'vec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );',
|
|
'float geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );',
|
|
'material.specularRoughness = max( 1.0 - glossinessFactor, 0.0525 ); // 0.0525 corresponds to the base mip of a 256 cubemap.',
|
|
'material.specularRoughness += geometryRoughness;',
|
|
'material.specularRoughness = min( material.specularRoughness, 1.0 );',
|
|
'material.specularColor = specularFactor;',
|
|
].join( '\n' );
|
|
|
|
var uniforms = {
|
|
specular: { value: new Color().setHex( 0xffffff ) },
|
|
glossiness: { value: 1 },
|
|
specularMap: { value: null },
|
|
glossinessMap: { value: null }
|
|
};
|
|
|
|
this._extraUniforms = uniforms;
|
|
|
|
this.onBeforeCompile = function ( shader ) {
|
|
|
|
for ( var uniformName in uniforms ) {
|
|
|
|
shader.uniforms[ uniformName ] = uniforms[ uniformName ];
|
|
|
|
}
|
|
|
|
shader.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 );
|
|
|
|
};
|
|
|
|
Object.defineProperties( this, {
|
|
|
|
specular: {
|
|
get: function () {
|
|
|
|
return uniforms.specular.value;
|
|
|
|
},
|
|
set: function ( v ) {
|
|
|
|
uniforms.specular.value = v;
|
|
|
|
}
|
|
},
|
|
|
|
specularMap: {
|
|
get: function () {
|
|
|
|
return uniforms.specularMap.value;
|
|
|
|
},
|
|
set: function ( v ) {
|
|
|
|
uniforms.specularMap.value = v;
|
|
|
|
if ( v ) {
|
|
|
|
this.defines.USE_SPECULARMAP = ''; // USE_UV is set by the renderer for specular maps
|
|
|
|
} else {
|
|
|
|
delete this.defines.USE_SPECULARMAP;
|
|
|
|
}
|
|
|
|
}
|
|
},
|
|
|
|
glossiness: {
|
|
get: function () {
|
|
|
|
return uniforms.glossiness.value;
|
|
|
|
},
|
|
set: function ( v ) {
|
|
|
|
uniforms.glossiness.value = v;
|
|
|
|
}
|
|
},
|
|
|
|
glossinessMap: {
|
|
get: function () {
|
|
|
|
return uniforms.glossinessMap.value;
|
|
|
|
},
|
|
set: function ( v ) {
|
|
|
|
uniforms.glossinessMap.value = v;
|
|
|
|
if ( v ) {
|
|
|
|
this.defines.USE_GLOSSINESSMAP = '';
|
|
this.defines.USE_UV = '';
|
|
|
|
} else {
|
|
|
|
delete this.defines.USE_GLOSSINESSMAP;
|
|
delete this.defines.USE_UV;
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
} );
|
|
|
|
delete this.metalness;
|
|
delete this.roughness;
|
|
delete this.metalnessMap;
|
|
delete this.roughnessMap;
|
|
|
|
this.setValues( params );
|
|
|
|
}
|
|
|
|
GLTFMeshStandardSGMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
|
|
GLTFMeshStandardSGMaterial.prototype.constructor = GLTFMeshStandardSGMaterial;
|
|
|
|
GLTFMeshStandardSGMaterial.prototype.copy = function ( source ) {
|
|
|
|
MeshStandardMaterial.prototype.copy.call( this, source );
|
|
this.specularMap = source.specularMap;
|
|
this.specular.copy( source.specular );
|
|
this.glossinessMap = source.glossinessMap;
|
|
this.glossiness = source.glossiness;
|
|
delete this.metalness;
|
|
delete this.roughness;
|
|
delete this.metalnessMap;
|
|
delete this.roughnessMap;
|
|
return this;
|
|
|
|
};
|
|
|
|
function GLTFMaterialsPbrSpecularGlossinessExtension() {
|
|
|
|
return {
|
|
|
|
name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
|
|
|
|
specularGlossinessParams: [
|
|
'color',
|
|
'map',
|
|
'lightMap',
|
|
'lightMapIntensity',
|
|
'aoMap',
|
|
'aoMapIntensity',
|
|
'emissive',
|
|
'emissiveIntensity',
|
|
'emissiveMap',
|
|
'bumpMap',
|
|
'bumpScale',
|
|
'normalMap',
|
|
'normalMapType',
|
|
'displacementMap',
|
|
'displacementScale',
|
|
'displacementBias',
|
|
'specularMap',
|
|
'specular',
|
|
'glossinessMap',
|
|
'glossiness',
|
|
'alphaMap',
|
|
'envMap',
|
|
'envMapIntensity',
|
|
'refractionRatio',
|
|
],
|
|
|
|
getMaterialType: function () {
|
|
|
|
return GLTFMeshStandardSGMaterial;
|
|
|
|
},
|
|
|
|
extendParams: function ( materialParams, materialDef, parser ) {
|
|
|
|
var pbrSpecularGlossiness = materialDef.extensions[ this.name ];
|
|
|
|
materialParams.color = new Color( 1.0, 1.0, 1.0 );
|
|
materialParams.opacity = 1.0;
|
|
|
|
var pending = [];
|
|
|
|
if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
|
|
|
|
var array = pbrSpecularGlossiness.diffuseFactor;
|
|
|
|
materialParams.color.fromArray( array );
|
|
materialParams.opacity = array[ 3 ];
|
|
|
|
}
|
|
|
|
if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'map', pbrSpecularGlossiness.diffuseTexture ) );
|
|
|
|
}
|
|
|
|
materialParams.emissive = new Color( 0.0, 0.0, 0.0 );
|
|
materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
|
|
materialParams.specular = new Color( 1.0, 1.0, 1.0 );
|
|
|
|
if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
|
|
|
|
materialParams.specular.fromArray( pbrSpecularGlossiness.specularFactor );
|
|
|
|
}
|
|
|
|
if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
|
|
|
|
var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
|
|
pending.push( parser.assignTexture( materialParams, 'glossinessMap', specGlossMapDef ) );
|
|
pending.push( parser.assignTexture( materialParams, 'specularMap', specGlossMapDef ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pending );
|
|
|
|
},
|
|
|
|
createMaterial: function ( materialParams ) {
|
|
|
|
var material = new GLTFMeshStandardSGMaterial( materialParams );
|
|
material.fog = true;
|
|
|
|
material.color = materialParams.color;
|
|
|
|
material.map = materialParams.map === undefined ? null : materialParams.map;
|
|
|
|
material.lightMap = null;
|
|
material.lightMapIntensity = 1.0;
|
|
|
|
material.aoMap = materialParams.aoMap === undefined ? null : materialParams.aoMap;
|
|
material.aoMapIntensity = 1.0;
|
|
|
|
material.emissive = materialParams.emissive;
|
|
material.emissiveIntensity = 1.0;
|
|
material.emissiveMap = materialParams.emissiveMap === undefined ? null : materialParams.emissiveMap;
|
|
|
|
material.bumpMap = materialParams.bumpMap === undefined ? null : materialParams.bumpMap;
|
|
material.bumpScale = 1;
|
|
|
|
material.normalMap = materialParams.normalMap === undefined ? null : materialParams.normalMap;
|
|
material.normalMapType = TangentSpaceNormalMap;
|
|
|
|
if ( materialParams.normalScale ) material.normalScale = materialParams.normalScale;
|
|
|
|
material.displacementMap = null;
|
|
material.displacementScale = 1;
|
|
material.displacementBias = 0;
|
|
|
|
material.specularMap = materialParams.specularMap === undefined ? null : materialParams.specularMap;
|
|
material.specular = materialParams.specular;
|
|
|
|
material.glossinessMap = materialParams.glossinessMap === undefined ? null : materialParams.glossinessMap;
|
|
material.glossiness = materialParams.glossiness;
|
|
|
|
material.alphaMap = null;
|
|
|
|
material.envMap = materialParams.envMap === undefined ? null : materialParams.envMap;
|
|
material.envMapIntensity = 1.0;
|
|
|
|
material.refractionRatio = 0.98;
|
|
|
|
return material;
|
|
|
|
},
|
|
|
|
};
|
|
|
|
}
|
|
|
|
/**
|
|
* Mesh Quantization Extension
|
|
*
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization
|
|
*/
|
|
function GLTFMeshQuantizationExtension() {
|
|
|
|
this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
|
|
|
|
}
|
|
|
|
/*********************************/
|
|
/********** 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 ) {
|
|
|
|
Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
|
|
|
|
}
|
|
|
|
GLTFCubicSplineInterpolant.prototype = Object.create( 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.
|
|
|
|
var result = this.resultBuffer,
|
|
values = this.sampleValues,
|
|
valueSize = this.valueSize,
|
|
offset = index * valueSize * 3 + valueSize;
|
|
|
|
for ( var i = 0; i !== valueSize; i ++ ) {
|
|
|
|
result[ i ] = values[ offset + i ];
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
};
|
|
|
|
GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
|
|
|
|
GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
|
|
|
|
GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {
|
|
|
|
var result = this.resultBuffer;
|
|
var values = this.sampleValues;
|
|
var stride = this.valueSize;
|
|
|
|
var stride2 = stride * 2;
|
|
var stride3 = stride * 3;
|
|
|
|
var td = t1 - t0;
|
|
|
|
var p = ( t - t0 ) / td;
|
|
var pp = p * p;
|
|
var ppp = pp * p;
|
|
|
|
var offset1 = i1 * stride3;
|
|
var offset0 = offset1 - stride3;
|
|
|
|
var s2 = - 2 * ppp + 3 * pp;
|
|
var s3 = ppp - pp;
|
|
var s0 = 1 - s2;
|
|
var s1 = s3 - pp + p;
|
|
|
|
// Layout of keyframe output values for CUBICSPLINE animations:
|
|
// [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
|
|
for ( var i = 0; i !== stride; i ++ ) {
|
|
|
|
var p0 = values[ offset0 + i + stride ]; // splineVertex_k
|
|
var m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)
|
|
var p1 = values[ offset1 + i + stride ]; // splineVertex_k+1
|
|
var 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 */
|
|
|
|
var 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
|
|
};
|
|
|
|
var WEBGL_FILTERS = {
|
|
9728: NearestFilter,
|
|
9729: LinearFilter,
|
|
9984: NearestMipmapNearestFilter,
|
|
9985: LinearMipmapNearestFilter,
|
|
9986: NearestMipmapLinearFilter,
|
|
9987: LinearMipmapLinearFilter
|
|
};
|
|
|
|
var WEBGL_WRAPPINGS = {
|
|
33071: ClampToEdgeWrapping,
|
|
33648: MirroredRepeatWrapping,
|
|
10497: RepeatWrapping
|
|
};
|
|
|
|
var WEBGL_TYPE_SIZES = {
|
|
'SCALAR': 1,
|
|
'VEC2': 2,
|
|
'VEC3': 3,
|
|
'VEC4': 4,
|
|
'MAT2': 4,
|
|
'MAT3': 9,
|
|
'MAT4': 16
|
|
};
|
|
|
|
var ATTRIBUTES = {
|
|
POSITION: 'position',
|
|
NORMAL: 'normal',
|
|
TANGENT: 'tangent',
|
|
TEXCOORD_0: 'uv',
|
|
TEXCOORD_1: 'uv2',
|
|
COLOR_0: 'color',
|
|
WEIGHTS_0: 'skinWeight',
|
|
JOINTS_0: 'skinIndex',
|
|
};
|
|
|
|
var PATH_PROPERTIES = {
|
|
scale: 'scale',
|
|
translation: 'position',
|
|
rotation: 'quaternion',
|
|
weights: 'morphTargetInfluences'
|
|
};
|
|
|
|
var INTERPOLATION = {
|
|
CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
|
|
// keyframe track will be initialized with a default interpolation type, then modified.
|
|
LINEAR: InterpolateLinear,
|
|
STEP: InterpolateDiscrete
|
|
};
|
|
|
|
var ALPHA_MODES = {
|
|
OPAQUE: 'OPAQUE',
|
|
MASK: 'MASK',
|
|
BLEND: 'BLEND'
|
|
};
|
|
|
|
/* 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;
|
|
|
|
}
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
|
|
*/
|
|
function createDefaultMaterial( cache ) {
|
|
|
|
if ( cache[ 'DefaultMaterial' ] === undefined ) {
|
|
|
|
cache[ 'DefaultMaterial' ] = new MeshStandardMaterial( {
|
|
color: 0xFFFFFF,
|
|
emissive: 0x000000,
|
|
metalness: 1,
|
|
roughness: 1,
|
|
transparent: false,
|
|
depthTest: true,
|
|
side: FrontSide
|
|
} );
|
|
|
|
}
|
|
|
|
return cache[ 'DefaultMaterial' ];
|
|
|
|
}
|
|
|
|
function addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) {
|
|
|
|
// Add unknown glTF extensions to an object's userData.
|
|
|
|
for ( var name in objectDef.extensions ) {
|
|
|
|
if ( knownExtensions[ name ] === undefined ) {
|
|
|
|
object.userData.gltfExtensions = object.userData.gltfExtensions || {};
|
|
object.userData.gltfExtensions[ name ] = objectDef.extensions[ name ];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {Object3D|Material|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 {BufferGeometry} geometry
|
|
* @param {Array<GLTF.Target>} targets
|
|
* @param {GLTFParser} parser
|
|
* @return {Promise<BufferGeometry>}
|
|
*/
|
|
function addMorphTargets( geometry, targets, parser ) {
|
|
|
|
var hasMorphPosition = false;
|
|
var hasMorphNormal = false;
|
|
|
|
for ( var i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
|
var target = targets[ i ];
|
|
|
|
if ( target.POSITION !== undefined ) hasMorphPosition = true;
|
|
if ( target.NORMAL !== undefined ) hasMorphNormal = true;
|
|
|
|
if ( hasMorphPosition && hasMorphNormal ) break;
|
|
|
|
}
|
|
|
|
if ( ! hasMorphPosition && ! hasMorphNormal ) return Promise.resolve( geometry );
|
|
|
|
var pendingPositionAccessors = [];
|
|
var pendingNormalAccessors = [];
|
|
|
|
for ( var i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
|
var target = targets[ i ];
|
|
|
|
if ( hasMorphPosition ) {
|
|
|
|
var pendingAccessor = target.POSITION !== undefined
|
|
? parser.getDependency( 'accessor', target.POSITION )
|
|
: geometry.attributes.position;
|
|
|
|
pendingPositionAccessors.push( pendingAccessor );
|
|
|
|
}
|
|
|
|
if ( hasMorphNormal ) {
|
|
|
|
var pendingAccessor = target.NORMAL !== undefined
|
|
? parser.getDependency( 'accessor', target.NORMAL )
|
|
: geometry.attributes.normal;
|
|
|
|
pendingNormalAccessors.push( pendingAccessor );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return Promise.all( [
|
|
Promise.all( pendingPositionAccessors ),
|
|
Promise.all( pendingNormalAccessors )
|
|
] ).then( function ( accessors ) {
|
|
|
|
var morphPositions = accessors[ 0 ];
|
|
var morphNormals = accessors[ 1 ];
|
|
|
|
if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
|
|
if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;
|
|
geometry.morphTargetsRelative = true;
|
|
|
|
return geometry;
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {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 ) ) {
|
|
|
|
var targetNames = meshDef.extras.targetNames;
|
|
|
|
if ( mesh.morphTargetInfluences.length === targetNames.length ) {
|
|
|
|
mesh.morphTargetDictionary = {};
|
|
|
|
for ( var i = 0, il = targetNames.length; i < il; i ++ ) {
|
|
|
|
mesh.morphTargetDictionary[ targetNames[ i ] ] = i;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function createPrimitiveKey( primitiveDef ) {
|
|
|
|
var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ];
|
|
var geometryKey;
|
|
|
|
if ( dracoExtension ) {
|
|
|
|
geometryKey = 'draco:' + dracoExtension.bufferView
|
|
+ ':' + dracoExtension.indices
|
|
+ ':' + createAttributesKey( dracoExtension.attributes );
|
|
|
|
} else {
|
|
|
|
geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode;
|
|
|
|
}
|
|
|
|
return geometryKey;
|
|
|
|
}
|
|
|
|
function createAttributesKey( attributes ) {
|
|
|
|
var attributesKey = '';
|
|
|
|
var keys = Object.keys( attributes ).sort();
|
|
|
|
for ( var i = 0, il = keys.length; i < il; i ++ ) {
|
|
|
|
attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';';
|
|
|
|
}
|
|
|
|
return attributesKey;
|
|
|
|
}
|
|
|
|
/* GLTF PARSER */
|
|
|
|
function GLTFParser( json, options ) {
|
|
|
|
this.json = json || {};
|
|
this.extensions = {};
|
|
this.plugins = {};
|
|
this.options = options || {};
|
|
|
|
// loader object cache
|
|
this.cache = new GLTFRegistry();
|
|
|
|
// associations between Three.js objects and glTF elements
|
|
this.associations = new Map();
|
|
|
|
// BufferGeometry caching
|
|
this.primitiveCache = {};
|
|
|
|
// Object3D instance caches
|
|
this.meshCache = { refs: {}, uses: {} };
|
|
this.cameraCache = { refs: {}, uses: {} };
|
|
this.lightCache = { refs: {}, uses: {} };
|
|
|
|
// Track node names, to ensure no duplicates
|
|
this.nodeNamesUsed = {};
|
|
|
|
// Use an ImageBitmapLoader if imageBitmaps are supported. Moves much of the
|
|
// expensive work of uploading a texture to the GPU off the main thread.
|
|
if ( typeof createImageBitmap !== 'undefined' && /Firefox/.test( navigator.userAgent ) === false ) {
|
|
|
|
this.textureLoader = new ImageBitmapLoader( this.options.manager );
|
|
|
|
} else {
|
|
|
|
this.textureLoader = new TextureLoader( this.options.manager );
|
|
|
|
}
|
|
|
|
this.textureLoader.setCrossOrigin( this.options.crossOrigin );
|
|
|
|
this.fileLoader = new FileLoader( this.options.manager );
|
|
this.fileLoader.setResponseType( 'arraybuffer' );
|
|
|
|
if ( this.options.crossOrigin === 'use-credentials' ) {
|
|
|
|
this.fileLoader.setWithCredentials( true );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
GLTFParser.prototype.setExtensions = function ( extensions ) {
|
|
|
|
this.extensions = extensions;
|
|
|
|
};
|
|
|
|
GLTFParser.prototype.setPlugins = function ( plugins ) {
|
|
|
|
this.plugins = plugins;
|
|
|
|
};
|
|
|
|
GLTFParser.prototype.parse = function ( onLoad, onError ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
var extensions = this.extensions;
|
|
|
|
// Clear the loader cache
|
|
this.cache.removeAll();
|
|
|
|
// Mark the special nodes/meshes in json for efficient parse
|
|
this._invokeAll( function ( ext ) {
|
|
|
|
return ext._markDefs && ext._markDefs();
|
|
|
|
} );
|
|
|
|
Promise.all( [
|
|
|
|
this.getDependencies( 'scene' ),
|
|
this.getDependencies( 'animation' ),
|
|
this.getDependencies( 'camera' ),
|
|
|
|
] ).then( function ( dependencies ) {
|
|
|
|
var result = {
|
|
scene: dependencies[ 0 ][ json.scene || 0 ],
|
|
scenes: dependencies[ 0 ],
|
|
animations: dependencies[ 1 ],
|
|
cameras: dependencies[ 2 ],
|
|
asset: json.asset,
|
|
parser: parser,
|
|
userData: {}
|
|
};
|
|
|
|
addUnknownExtensionsToUserData( extensions, result, json );
|
|
|
|
assignExtrasToUserData( result, json );
|
|
|
|
onLoad( result );
|
|
|
|
} ).catch( onError );
|
|
|
|
};
|
|
|
|
/**
|
|
* Marks the special nodes/meshes in json for efficient parse.
|
|
*/
|
|
GLTFParser.prototype._markDefs = function () {
|
|
|
|
var nodeDefs = this.json.nodes || [];
|
|
var skinDefs = this.json.skins || [];
|
|
var meshDefs = this.json.meshes || [];
|
|
|
|
// Nothing in the node definition indicates whether it is a Bone or an
|
|
// Object3D. Use the skins' joint references to mark bones.
|
|
for ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {
|
|
|
|
var joints = skinDefs[ skinIndex ].joints;
|
|
|
|
for ( var i = 0, il = joints.length; i < il; i ++ ) {
|
|
|
|
nodeDefs[ joints[ i ] ].isBone = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Iterate over all nodes, marking references to shared resources,
|
|
// as well as skeleton joints.
|
|
for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
|
|
|
|
var nodeDef = nodeDefs[ nodeIndex ];
|
|
|
|
if ( nodeDef.mesh !== undefined ) {
|
|
|
|
this._addNodeRef( this.meshCache, 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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( nodeDef.camera !== undefined ) {
|
|
|
|
this._addNodeRef( this.cameraCache, nodeDef.camera );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Counts references to shared node / Object3D resources. These resources
|
|
* can be reused, or "instantiated", at multiple nodes in the scene
|
|
* hierarchy. Mesh, Camera, and Light instances are instantiated and must
|
|
* be marked. Non-scenegraph resources (like Materials, Geometries, and
|
|
* Textures) can be reused directly and are not marked here.
|
|
*
|
|
* Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
|
|
*/
|
|
GLTFParser.prototype._addNodeRef = function ( cache, index ) {
|
|
|
|
if ( index === undefined ) return;
|
|
|
|
if ( cache.refs[ index ] === undefined ) {
|
|
|
|
cache.refs[ index ] = cache.uses[ index ] = 0;
|
|
|
|
}
|
|
|
|
cache.refs[ index ] ++;
|
|
|
|
};
|
|
|
|
/** Returns a reference to a shared resource, cloning it if necessary. */
|
|
GLTFParser.prototype._getNodeRef = function ( cache, index, object ) {
|
|
|
|
if ( cache.refs[ index ] <= 1 ) return object;
|
|
|
|
var ref = object.clone();
|
|
|
|
ref.name += '_instance_' + ( cache.uses[ index ] ++ );
|
|
|
|
return ref;
|
|
|
|
};
|
|
|
|
GLTFParser.prototype._invokeOne = function ( func ) {
|
|
|
|
var extensions = Object.values( this.plugins );
|
|
extensions.push( this );
|
|
|
|
for ( var i = 0; i < extensions.length; i ++ ) {
|
|
|
|
var result = func( extensions[ i ] );
|
|
|
|
if ( result ) return result;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
GLTFParser.prototype._invokeAll = function ( func ) {
|
|
|
|
var extensions = Object.values( this.plugins );
|
|
extensions.unshift( this );
|
|
|
|
var pending = [];
|
|
|
|
for ( var i = 0; i < extensions.length; i ++ ) {
|
|
|
|
var result = func( extensions[ i ] );
|
|
|
|
if ( result ) pending.push( result );
|
|
|
|
}
|
|
|
|
return pending;
|
|
|
|
};
|
|
|
|
/**
|
|
* Requests the specified dependency asynchronously, with caching.
|
|
* @param {string} type
|
|
* @param {number} index
|
|
* @return {Promise<Object3D|Material|THREE.Texture|AnimationClip|ArrayBuffer|Object>}
|
|
*/
|
|
GLTFParser.prototype.getDependency = function ( type, index ) {
|
|
|
|
var cacheKey = type + ':' + index;
|
|
var dependency = this.cache.get( cacheKey );
|
|
|
|
if ( ! dependency ) {
|
|
|
|
switch ( type ) {
|
|
|
|
case 'scene':
|
|
dependency = this.loadScene( index );
|
|
break;
|
|
|
|
case 'node':
|
|
dependency = this.loadNode( index );
|
|
break;
|
|
|
|
case 'mesh':
|
|
dependency = this._invokeOne( function ( ext ) {
|
|
|
|
return ext.loadMesh && ext.loadMesh( index );
|
|
|
|
} );
|
|
break;
|
|
|
|
case 'accessor':
|
|
dependency = this.loadAccessor( index );
|
|
break;
|
|
|
|
case 'bufferView':
|
|
dependency = this._invokeOne( function ( ext ) {
|
|
|
|
return ext.loadBufferView && ext.loadBufferView( index );
|
|
|
|
} );
|
|
break;
|
|
|
|
case 'buffer':
|
|
dependency = this.loadBuffer( index );
|
|
break;
|
|
|
|
case 'material':
|
|
dependency = this._invokeOne( function ( ext ) {
|
|
|
|
return ext.loadMaterial && ext.loadMaterial( index );
|
|
|
|
} );
|
|
break;
|
|
|
|
case 'texture':
|
|
dependency = this._invokeOne( function ( ext ) {
|
|
|
|
return ext.loadTexture && ext.loadTexture( index );
|
|
|
|
} );
|
|
break;
|
|
|
|
case 'skin':
|
|
dependency = this.loadSkin( index );
|
|
break;
|
|
|
|
case 'animation':
|
|
dependency = this.loadAnimation( index );
|
|
break;
|
|
|
|
case 'camera':
|
|
dependency = this.loadCamera( 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 ) {
|
|
|
|
var dependencies = this.cache.get( type );
|
|
|
|
if ( ! dependencies ) {
|
|
|
|
var parser = this;
|
|
var defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];
|
|
|
|
dependencies = Promise.all( defs.map( function ( def, index ) {
|
|
|
|
return parser.getDependency( type, index );
|
|
|
|
} ) );
|
|
|
|
this.cache.add( type, dependencies );
|
|
|
|
}
|
|
|
|
return dependencies;
|
|
|
|
};
|
|
|
|
/**
|
|
* 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 ) {
|
|
|
|
var bufferDef = this.json.buffers[ bufferIndex ];
|
|
var loader = this.fileLoader;
|
|
|
|
if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );
|
|
|
|
}
|
|
|
|
// If 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 );
|
|
|
|
}
|
|
|
|
var options = this.options;
|
|
|
|
return new Promise( function ( resolve, reject ) {
|
|
|
|
loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {
|
|
|
|
reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) );
|
|
|
|
} );
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* 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 ) {
|
|
|
|
var bufferViewDef = this.json.bufferViews[ bufferViewIndex ];
|
|
|
|
return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {
|
|
|
|
var byteLength = bufferViewDef.byteLength || 0;
|
|
var byteOffset = bufferViewDef.byteOffset || 0;
|
|
return buffer.slice( byteOffset, byteOffset + byteLength );
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
|
|
* @param {number} accessorIndex
|
|
* @return {Promise<BufferAttribute|InterleavedBufferAttribute>}
|
|
*/
|
|
GLTFParser.prototype.loadAccessor = function ( accessorIndex ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
|
|
var accessorDef = this.json.accessors[ accessorIndex ];
|
|
|
|
if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {
|
|
|
|
// 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 );
|
|
|
|
}
|
|
|
|
var pendingBufferViews = [];
|
|
|
|
if ( accessorDef.bufferView !== undefined ) {
|
|
|
|
pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );
|
|
|
|
} else {
|
|
|
|
pendingBufferViews.push( null );
|
|
|
|
}
|
|
|
|
if ( accessorDef.sparse !== undefined ) {
|
|
|
|
pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );
|
|
pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pendingBufferViews ).then( function ( bufferViews ) {
|
|
|
|
var bufferView = bufferViews[ 0 ];
|
|
|
|
var itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
|
|
var TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
|
|
|
|
// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
|
|
var elementBytes = TypedArray.BYTES_PER_ELEMENT;
|
|
var itemBytes = elementBytes * itemSize;
|
|
var byteOffset = accessorDef.byteOffset || 0;
|
|
var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined;
|
|
var normalized = accessorDef.normalized === true;
|
|
var array, bufferAttribute;
|
|
|
|
// 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
|
|
var ibSlice = Math.floor( byteOffset / byteStride );
|
|
var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
|
|
var ib = parser.cache.get( ibCacheKey );
|
|
|
|
if ( ! ib ) {
|
|
|
|
array = new TypedArray( bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes );
|
|
|
|
// Integer parameters to IB/IBA are in array elements, not bytes.
|
|
ib = new InterleavedBuffer( array, byteStride / elementBytes );
|
|
|
|
parser.cache.add( ibCacheKey, ib );
|
|
|
|
}
|
|
|
|
bufferAttribute = new 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 BufferAttribute( array, itemSize, normalized );
|
|
|
|
}
|
|
|
|
// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
|
|
if ( accessorDef.sparse !== undefined ) {
|
|
|
|
var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
|
|
var TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];
|
|
|
|
var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
|
|
var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
|
|
|
|
var sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
|
|
var sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );
|
|
|
|
if ( bufferView !== null ) {
|
|
|
|
// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
|
|
bufferAttribute = new BufferAttribute( bufferAttribute.array.slice(), bufferAttribute.itemSize, bufferAttribute.normalized );
|
|
|
|
}
|
|
|
|
for ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {
|
|
|
|
var index = sparseIndices[ i ];
|
|
|
|
bufferAttribute.setX( index, sparseValues[ i * itemSize ] );
|
|
if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );
|
|
if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );
|
|
if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );
|
|
if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return bufferAttribute;
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
|
|
* @param {number} textureIndex
|
|
* @return {Promise<THREE.Texture>}
|
|
*/
|
|
GLTFParser.prototype.loadTexture = function ( textureIndex ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
var options = this.options;
|
|
|
|
var textureDef = json.textures[ textureIndex ];
|
|
|
|
var textureExtensions = textureDef.extensions || {};
|
|
|
|
var source;
|
|
|
|
if ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) {
|
|
|
|
source = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ];
|
|
|
|
} else {
|
|
|
|
source = json.images[ textureDef.source ];
|
|
|
|
}
|
|
|
|
var loader;
|
|
|
|
if ( source.uri ) {
|
|
|
|
loader = options.manager.getHandler( source.uri );
|
|
|
|
}
|
|
|
|
if ( ! loader ) {
|
|
|
|
loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ]
|
|
? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader
|
|
: this.textureLoader;
|
|
|
|
}
|
|
|
|
return this.loadTextureImage( textureIndex, source, loader );
|
|
|
|
};
|
|
|
|
GLTFParser.prototype.loadTextureImage = function ( textureIndex, source, loader ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
var options = this.options;
|
|
|
|
var textureDef = json.textures[ textureIndex ];
|
|
|
|
var URL = self.URL || self.webkitURL;
|
|
|
|
var sourceURI = source.uri;
|
|
var isObjectURL = false;
|
|
var hasAlpha = true;
|
|
|
|
if ( source.mimeType === 'image/jpeg' ) hasAlpha = false;
|
|
|
|
if ( source.bufferView !== undefined ) {
|
|
|
|
// Load binary image data from bufferView, if provided.
|
|
|
|
sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {
|
|
|
|
if ( source.mimeType === 'image/png' ) {
|
|
|
|
// Inspect the PNG 'IHDR' chunk to determine whether the image could have an
|
|
// alpha channel. This check is conservative — the image could have an alpha
|
|
// channel with all values == 1, and the indexed type (colorType == 3) only
|
|
// sometimes contains alpha.
|
|
//
|
|
// https://en.wikipedia.org/wiki/Portable_Network_Graphics#File_header
|
|
var colorType = new DataView( bufferView, 25, 1 ).getUint8( 0, false );
|
|
hasAlpha = colorType === 6 || colorType === 4 || colorType === 3;
|
|
|
|
}
|
|
|
|
isObjectURL = true;
|
|
var blob = new Blob( [ bufferView ], { type: source.mimeType } );
|
|
sourceURI = URL.createObjectURL( blob );
|
|
return sourceURI;
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
return Promise.resolve( sourceURI ).then( function ( sourceURI ) {
|
|
|
|
return new Promise( function ( resolve, reject ) {
|
|
|
|
var onLoad = resolve;
|
|
|
|
if ( loader.isImageBitmapLoader === true ) {
|
|
|
|
onLoad = function ( imageBitmap ) {
|
|
|
|
resolve( new CanvasTexture( imageBitmap ) );
|
|
|
|
};
|
|
|
|
}
|
|
|
|
loader.load( resolveURL( sourceURI, options.path ), onLoad, undefined, reject );
|
|
|
|
} );
|
|
|
|
} ).then( function ( texture ) {
|
|
|
|
// Clean up resources and configure Texture.
|
|
|
|
if ( isObjectURL === true ) {
|
|
|
|
URL.revokeObjectURL( sourceURI );
|
|
|
|
}
|
|
|
|
texture.flipY = false;
|
|
|
|
if ( textureDef.name ) texture.name = textureDef.name;
|
|
|
|
// When there is definitely no alpha channel in the texture, set RGBFormat to save space.
|
|
if ( ! hasAlpha ) texture.format = RGBFormat;
|
|
|
|
var samplers = json.samplers || {};
|
|
var sampler = samplers[ textureDef.sampler ] || {};
|
|
|
|
texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || LinearFilter;
|
|
texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || LinearMipmapLinearFilter;
|
|
texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || RepeatWrapping;
|
|
texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || RepeatWrapping;
|
|
|
|
parser.associations.set( texture, {
|
|
type: 'textures',
|
|
index: textureIndex
|
|
} );
|
|
|
|
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 ) {
|
|
|
|
var parser = this;
|
|
|
|
return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) {
|
|
|
|
// Materials sample aoMap from UV set 1 and other maps from UV set 0 - this can't be configured
|
|
// However, we will copy UV set 0 to UV set 1 on demand for aoMap
|
|
if ( mapDef.texCoord !== undefined && mapDef.texCoord != 0 && ! ( mapName === 'aoMap' && mapDef.texCoord == 1 ) ) {
|
|
|
|
console.warn( 'THREE.GLTFLoader: Custom UV set ' + mapDef.texCoord + ' for texture ' + mapName + ' not yet supported.' );
|
|
|
|
}
|
|
|
|
if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) {
|
|
|
|
var transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined;
|
|
|
|
if ( transform ) {
|
|
|
|
var gltfReference = parser.associations.get( texture );
|
|
texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform );
|
|
parser.associations.set( texture, gltfReference );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
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 {Object3D} mesh Mesh, Line, or Points instance.
|
|
*/
|
|
GLTFParser.prototype.assignFinalMaterial = function ( mesh ) {
|
|
|
|
var geometry = mesh.geometry;
|
|
var material = mesh.material;
|
|
|
|
var useVertexTangents = geometry.attributes.tangent !== undefined;
|
|
var useVertexColors = geometry.attributes.color !== undefined;
|
|
var useFlatShading = geometry.attributes.normal === undefined;
|
|
var useSkinning = mesh.isSkinnedMesh === true;
|
|
var useMorphTargets = Object.keys( geometry.morphAttributes ).length > 0;
|
|
var useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;
|
|
|
|
if ( mesh.isPoints ) {
|
|
|
|
var cacheKey = 'PointsMaterial:' + material.uuid;
|
|
|
|
var pointsMaterial = this.cache.get( cacheKey );
|
|
|
|
if ( ! pointsMaterial ) {
|
|
|
|
pointsMaterial = new PointsMaterial();
|
|
Material.prototype.copy.call( pointsMaterial, material );
|
|
pointsMaterial.color.copy( material.color );
|
|
pointsMaterial.map = material.map;
|
|
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;
|
|
|
|
var lineMaterial = this.cache.get( cacheKey );
|
|
|
|
if ( ! lineMaterial ) {
|
|
|
|
lineMaterial = new LineBasicMaterial();
|
|
Material.prototype.copy.call( lineMaterial, material );
|
|
lineMaterial.color.copy( material.color );
|
|
|
|
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:';
|
|
|
|
var cachedMaterial = this.cache.get( cacheKey );
|
|
|
|
if ( ! cachedMaterial ) {
|
|
|
|
cachedMaterial = material.clone();
|
|
|
|
if ( useSkinning ) cachedMaterial.skinning = true;
|
|
if ( useVertexTangents ) cachedMaterial.vertexTangents = true;
|
|
if ( useVertexColors ) cachedMaterial.vertexColors = true;
|
|
if ( useFlatShading ) cachedMaterial.flatShading = true;
|
|
if ( useMorphTargets ) cachedMaterial.morphTargets = true;
|
|
if ( useMorphNormals ) cachedMaterial.morphNormals = true;
|
|
|
|
this.cache.add( cacheKey, cachedMaterial );
|
|
|
|
this.associations.set( cachedMaterial, this.associations.get( material ) );
|
|
|
|
}
|
|
|
|
material = cachedMaterial;
|
|
|
|
}
|
|
|
|
// workarounds for mesh and geometry
|
|
|
|
if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {
|
|
|
|
geometry.setAttribute( 'uv2', geometry.attributes.uv );
|
|
|
|
}
|
|
|
|
// https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
|
|
if ( material.normalScale && ! useVertexTangents ) {
|
|
|
|
material.normalScale.y = - material.normalScale.y;
|
|
|
|
}
|
|
|
|
if ( material.clearcoatNormalScale && ! useVertexTangents ) {
|
|
|
|
material.clearcoatNormalScale.y = - material.clearcoatNormalScale.y;
|
|
|
|
}
|
|
|
|
mesh.material = material;
|
|
|
|
};
|
|
|
|
GLTFParser.prototype.getMaterialType = function ( /* materialIndex */ ) {
|
|
|
|
return MeshStandardMaterial;
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
|
|
* @param {number} materialIndex
|
|
* @return {Promise<Material>}
|
|
*/
|
|
GLTFParser.prototype.loadMaterial = function ( materialIndex ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
var extensions = this.extensions;
|
|
var materialDef = json.materials[ materialIndex ];
|
|
|
|
var materialType;
|
|
var materialParams = {};
|
|
var materialExtensions = materialDef.extensions || {};
|
|
|
|
var pending = [];
|
|
|
|
if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
|
|
|
|
var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
|
|
materialType = sgExtension.getMaterialType();
|
|
pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );
|
|
|
|
} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {
|
|
|
|
var kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];
|
|
materialType = kmuExtension.getMaterialType();
|
|
pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );
|
|
|
|
} else {
|
|
|
|
// Specification:
|
|
// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
|
|
|
|
var metallicRoughness = materialDef.pbrMetallicRoughness || {};
|
|
|
|
materialParams.color = new Color( 1.0, 1.0, 1.0 );
|
|
materialParams.opacity = 1.0;
|
|
|
|
if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
|
|
|
|
var array = metallicRoughness.baseColorFactor;
|
|
|
|
materialParams.color.fromArray( array );
|
|
materialParams.opacity = array[ 3 ];
|
|
|
|
}
|
|
|
|
if ( metallicRoughness.baseColorTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
|
|
|
|
}
|
|
|
|
materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
|
|
materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
|
|
|
|
if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture ) );
|
|
pending.push( parser.assignTexture( materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture ) );
|
|
|
|
}
|
|
|
|
materialType = this._invokeOne( function ( ext ) {
|
|
|
|
return ext.getMaterialType && ext.getMaterialType( materialIndex );
|
|
|
|
} );
|
|
|
|
pending.push( Promise.all( this._invokeAll( function ( ext ) {
|
|
|
|
return ext.extendMaterialParams && ext.extendMaterialParams( materialIndex, materialParams );
|
|
|
|
} ) ) );
|
|
|
|
}
|
|
|
|
if ( materialDef.doubleSided === true ) {
|
|
|
|
materialParams.side = DoubleSide;
|
|
|
|
}
|
|
|
|
var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
|
|
|
|
if ( alphaMode === ALPHA_MODES.BLEND ) {
|
|
|
|
materialParams.transparent = true;
|
|
|
|
// See: https://github.com/mrdoob/three.js/issues/17706
|
|
materialParams.depthWrite = false;
|
|
|
|
} else {
|
|
|
|
materialParams.transparent = false;
|
|
|
|
if ( alphaMode === ALPHA_MODES.MASK ) {
|
|
|
|
materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( materialDef.normalTexture !== undefined && materialType !== MeshBasicMaterial ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture ) );
|
|
|
|
materialParams.normalScale = new Vector2( 1, 1 );
|
|
|
|
if ( materialDef.normalTexture.scale !== undefined ) {
|
|
|
|
materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( materialDef.occlusionTexture !== undefined && materialType !== MeshBasicMaterial ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture ) );
|
|
|
|
if ( materialDef.occlusionTexture.strength !== undefined ) {
|
|
|
|
materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( materialDef.emissiveFactor !== undefined && materialType !== MeshBasicMaterial ) {
|
|
|
|
materialParams.emissive = new Color().fromArray( materialDef.emissiveFactor );
|
|
|
|
}
|
|
|
|
if ( materialDef.emissiveTexture !== undefined && materialType !== MeshBasicMaterial ) {
|
|
|
|
pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pending ).then( function () {
|
|
|
|
var material;
|
|
|
|
if ( materialType === GLTFMeshStandardSGMaterial ) {
|
|
|
|
material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
|
|
|
|
} else {
|
|
|
|
material = new materialType( materialParams );
|
|
|
|
}
|
|
|
|
if ( materialDef.name ) material.name = materialDef.name;
|
|
|
|
// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
|
|
if ( material.map ) material.map.encoding = sRGBEncoding;
|
|
if ( material.emissiveMap ) material.emissiveMap.encoding = sRGBEncoding;
|
|
|
|
assignExtrasToUserData( material, materialDef );
|
|
|
|
parser.associations.set( material, { type: 'materials', index: materialIndex } );
|
|
|
|
if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );
|
|
|
|
return material;
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/** When Object3D instances are targeted by animation, they need unique names. */
|
|
GLTFParser.prototype.createUniqueName = function ( originalName ) {
|
|
|
|
var name = PropertyBinding.sanitizeNodeName( originalName || '' );
|
|
|
|
for ( var i = 1; this.nodeNamesUsed[ name ]; ++ i ) {
|
|
|
|
name = originalName + '_' + i;
|
|
|
|
}
|
|
|
|
this.nodeNamesUsed[ name ] = true;
|
|
|
|
return name;
|
|
|
|
};
|
|
|
|
/**
|
|
* @param {BufferGeometry} geometry
|
|
* @param {GLTF.Primitive} primitiveDef
|
|
* @param {GLTFParser} parser
|
|
*/
|
|
function computeBounds( geometry, primitiveDef, parser ) {
|
|
|
|
var attributes = primitiveDef.attributes;
|
|
|
|
var box = new Box3();
|
|
|
|
if ( attributes.POSITION !== undefined ) {
|
|
|
|
var accessor = parser.json.accessors[ attributes.POSITION ];
|
|
|
|
var min = accessor.min;
|
|
var max = accessor.max;
|
|
|
|
// glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.
|
|
|
|
if ( min !== undefined && max !== undefined ) {
|
|
|
|
box.set(
|
|
new Vector3( min[ 0 ], min[ 1 ], min[ 2 ] ),
|
|
new Vector3( max[ 0 ], max[ 1 ], max[ 2 ] ) );
|
|
|
|
} else {
|
|
|
|
console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
var targets = primitiveDef.targets;
|
|
|
|
if ( targets !== undefined ) {
|
|
|
|
var maxDisplacement = new Vector3();
|
|
var vector = new Vector3();
|
|
|
|
for ( var i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
|
var target = targets[ i ];
|
|
|
|
if ( target.POSITION !== undefined ) {
|
|
|
|
var accessor = parser.json.accessors[ target.POSITION ];
|
|
var min = accessor.min;
|
|
var max = accessor.max;
|
|
|
|
// glTF requires 'min' and 'max', but VRM (which extends glTF) currently ignores that requirement.
|
|
|
|
if ( min !== undefined && max !== undefined ) {
|
|
|
|
// we need to get max of absolute components because target weight is [-1,1]
|
|
vector.setX( Math.max( Math.abs( min[ 0 ] ), Math.abs( max[ 0 ] ) ) );
|
|
vector.setY( Math.max( Math.abs( min[ 1 ] ), Math.abs( max[ 1 ] ) ) );
|
|
vector.setZ( Math.max( Math.abs( min[ 2 ] ), Math.abs( max[ 2 ] ) ) );
|
|
|
|
// Note: this assumes that the sum of all weights is at most 1. This isn't quite correct - it's more conservative
|
|
// to assume that each target can have a max weight of 1. However, for some use cases - notably, when morph targets
|
|
// are used to implement key-frame animations and as such only two are active at a time - this results in very large
|
|
// boxes. So for now we make a box that's sometimes a touch too small but is hopefully mostly of reasonable size.
|
|
maxDisplacement.max( vector );
|
|
|
|
} else {
|
|
|
|
console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// As per comment above this box isn't conservative, but has a reasonable size for a very large number of morph targets.
|
|
box.expandByVector( maxDisplacement );
|
|
|
|
}
|
|
|
|
geometry.boundingBox = box;
|
|
|
|
var sphere = new Sphere();
|
|
|
|
box.getCenter( sphere.center );
|
|
sphere.radius = box.min.distanceTo( box.max ) / 2;
|
|
|
|
geometry.boundingSphere = sphere;
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {BufferGeometry} geometry
|
|
* @param {GLTF.Primitive} primitiveDef
|
|
* @param {GLTFParser} parser
|
|
* @return {Promise<BufferGeometry>}
|
|
*/
|
|
function addPrimitiveAttributes( geometry, primitiveDef, parser ) {
|
|
|
|
var attributes = primitiveDef.attributes;
|
|
|
|
var pending = [];
|
|
|
|
function assignAttributeAccessor( accessorIndex, attributeName ) {
|
|
|
|
return parser.getDependency( 'accessor', accessorIndex )
|
|
.then( function ( accessor ) {
|
|
|
|
geometry.setAttribute( attributeName, accessor );
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
for ( var gltfAttributeName in attributes ) {
|
|
|
|
var 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 ) {
|
|
|
|
var accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) {
|
|
|
|
geometry.setIndex( accessor );
|
|
|
|
} );
|
|
|
|
pending.push( accessor );
|
|
|
|
}
|
|
|
|
assignExtrasToUserData( geometry, primitiveDef );
|
|
|
|
computeBounds( geometry, primitiveDef, parser );
|
|
|
|
return Promise.all( pending ).then( function () {
|
|
|
|
return primitiveDef.targets !== undefined
|
|
? addMorphTargets( geometry, primitiveDef.targets, parser )
|
|
: geometry;
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
/**
|
|
* @param {BufferGeometry} geometry
|
|
* @param {Number} drawMode
|
|
* @return {BufferGeometry}
|
|
*/
|
|
function toTrianglesDrawMode( geometry, drawMode ) {
|
|
|
|
var index = geometry.getIndex();
|
|
|
|
// generate index if not present
|
|
|
|
if ( index === null ) {
|
|
|
|
var indices = [];
|
|
|
|
var position = geometry.getAttribute( 'position' );
|
|
|
|
if ( position !== undefined ) {
|
|
|
|
for ( var i = 0; i < position.count; i ++ ) {
|
|
|
|
indices.push( i );
|
|
|
|
}
|
|
|
|
geometry.setIndex( indices );
|
|
index = geometry.getIndex();
|
|
|
|
} else {
|
|
|
|
console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.' );
|
|
return geometry;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
|
|
var numberOfTriangles = index.count - 2;
|
|
var newIndices = [];
|
|
|
|
if ( drawMode === TriangleFanDrawMode ) {
|
|
|
|
// gl.TRIANGLE_FAN
|
|
|
|
for ( var i = 1; i <= numberOfTriangles; i ++ ) {
|
|
|
|
newIndices.push( index.getX( 0 ) );
|
|
newIndices.push( index.getX( i ) );
|
|
newIndices.push( index.getX( i + 1 ) );
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// gl.TRIANGLE_STRIP
|
|
|
|
for ( var i = 0; i < numberOfTriangles; i ++ ) {
|
|
|
|
if ( i % 2 === 0 ) {
|
|
|
|
newIndices.push( index.getX( i ) );
|
|
newIndices.push( index.getX( i + 1 ) );
|
|
newIndices.push( index.getX( i + 2 ) );
|
|
|
|
|
|
} else {
|
|
|
|
newIndices.push( index.getX( i + 2 ) );
|
|
newIndices.push( index.getX( i + 1 ) );
|
|
newIndices.push( index.getX( i ) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( ( newIndices.length / 3 ) !== numberOfTriangles ) {
|
|
|
|
console.error( 'THREE.GLTFLoader.toTrianglesDrawMode(): Unable to generate correct amount of triangles.' );
|
|
|
|
}
|
|
|
|
// build final geometry
|
|
|
|
var newGeometry = geometry.clone();
|
|
newGeometry.setIndex( newIndices );
|
|
|
|
return newGeometry;
|
|
|
|
}
|
|
|
|
/**
|
|
* 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<BufferGeometry>>}
|
|
*/
|
|
GLTFParser.prototype.loadGeometries = function ( primitives ) {
|
|
|
|
var parser = this;
|
|
var extensions = this.extensions;
|
|
var cache = this.primitiveCache;
|
|
|
|
function createDracoPrimitive( primitive ) {
|
|
|
|
return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
|
|
.decodePrimitive( primitive, parser )
|
|
.then( function ( geometry ) {
|
|
|
|
return addPrimitiveAttributes( geometry, primitive, parser );
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
var pending = [];
|
|
|
|
for ( var i = 0, il = primitives.length; i < il; i ++ ) {
|
|
|
|
var primitive = primitives[ i ];
|
|
var cacheKey = createPrimitiveKey( primitive );
|
|
|
|
// See if we've already created this geometry
|
|
var 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 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<Group|Mesh|SkinnedMesh>}
|
|
*/
|
|
GLTFParser.prototype.loadMesh = function ( meshIndex ) {
|
|
|
|
var parser = this;
|
|
var json = this.json;
|
|
|
|
var meshDef = json.meshes[ meshIndex ];
|
|
var primitives = meshDef.primitives;
|
|
|
|
var pending = [];
|
|
|
|
for ( var i = 0, il = primitives.length; i < il; i ++ ) {
|
|
|
|
var material = primitives[ i ].material === undefined
|
|
? createDefaultMaterial( this.cache )
|
|
: this.getDependency( 'material', primitives[ i ].material );
|
|
|
|
pending.push( material );
|
|
|
|
}
|
|
|
|
pending.push( parser.loadGeometries( primitives ) );
|
|
|
|
return Promise.all( pending ).then( function ( results ) {
|
|
|
|
var materials = results.slice( 0, results.length - 1 );
|
|
var geometries = results[ results.length - 1 ];
|
|
|
|
var meshes = [];
|
|
|
|
for ( var i = 0, il = geometries.length; i < il; i ++ ) {
|
|
|
|
var geometry = geometries[ i ];
|
|
var primitive = primitives[ i ];
|
|
|
|
// 1. create Mesh
|
|
|
|
var mesh;
|
|
|
|
var material = materials[ 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 SkinnedMesh( geometry, material )
|
|
: new 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.geometry = toTrianglesDrawMode( mesh.geometry, TriangleStripDrawMode );
|
|
|
|
} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
|
|
|
|
mesh.geometry = toTrianglesDrawMode( mesh.geometry, TriangleFanDrawMode );
|
|
|
|
}
|
|
|
|
} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {
|
|
|
|
mesh = new LineSegments( geometry, material );
|
|
|
|
} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {
|
|
|
|
mesh = new Line( geometry, material );
|
|
|
|
} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {
|
|
|
|
mesh = new LineLoop( geometry, material );
|
|
|
|
} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {
|
|
|
|
mesh = new 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 = parser.createUniqueName( meshDef.name || ( 'mesh_' + meshIndex ) );
|
|
|
|
if ( geometries.length > 1 ) mesh.name += '_' + i;
|
|
|
|
assignExtrasToUserData( mesh, meshDef );
|
|
|
|
parser.assignFinalMaterial( mesh );
|
|
|
|
meshes.push( mesh );
|
|
|
|
}
|
|
|
|
if ( meshes.length === 1 ) {
|
|
|
|
return meshes[ 0 ];
|
|
|
|
}
|
|
|
|
var group = new 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 ) {
|
|
|
|
var camera;
|
|
var cameraDef = this.json.cameras[ cameraIndex ];
|
|
var params = cameraDef[ cameraDef.type ];
|
|
|
|
if ( ! params ) {
|
|
|
|
console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
|
|
return;
|
|
|
|
}
|
|
|
|
if ( cameraDef.type === 'perspective' ) {
|
|
|
|
camera = new PerspectiveCamera( MathUtils.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );
|
|
|
|
} else if ( cameraDef.type === 'orthographic' ) {
|
|
|
|
camera = new OrthographicCamera( - params.xmag, params.xmag, params.ymag, - params.ymag, params.znear, params.zfar );
|
|
|
|
}
|
|
|
|
if ( cameraDef.name ) camera.name = this.createUniqueName( 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 ) {
|
|
|
|
var skinDef = this.json.skins[ skinIndex ];
|
|
|
|
var skinEntry = { joints: skinDef.joints };
|
|
|
|
if ( skinDef.inverseBindMatrices === undefined ) {
|
|
|
|
return Promise.resolve( skinEntry );
|
|
|
|
}
|
|
|
|
return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {
|
|
|
|
skinEntry.inverseBindMatrices = accessor;
|
|
|
|
return skinEntry;
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
|
|
* @param {number} animationIndex
|
|
* @return {Promise<AnimationClip>}
|
|
*/
|
|
GLTFParser.prototype.loadAnimation = function ( animationIndex ) {
|
|
|
|
var json = this.json;
|
|
|
|
var animationDef = json.animations[ animationIndex ];
|
|
|
|
var pendingNodes = [];
|
|
var pendingInputAccessors = [];
|
|
var pendingOutputAccessors = [];
|
|
var pendingSamplers = [];
|
|
var pendingTargets = [];
|
|
|
|
for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {
|
|
|
|
var channel = animationDef.channels[ i ];
|
|
var sampler = animationDef.samplers[ channel.sampler ];
|
|
var target = channel.target;
|
|
var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
|
|
var input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
|
|
var output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;
|
|
|
|
pendingNodes.push( this.getDependency( 'node', name ) );
|
|
pendingInputAccessors.push( this.getDependency( 'accessor', input ) );
|
|
pendingOutputAccessors.push( this.getDependency( 'accessor', output ) );
|
|
pendingSamplers.push( sampler );
|
|
pendingTargets.push( target );
|
|
|
|
}
|
|
|
|
return Promise.all( [
|
|
|
|
Promise.all( pendingNodes ),
|
|
Promise.all( pendingInputAccessors ),
|
|
Promise.all( pendingOutputAccessors ),
|
|
Promise.all( pendingSamplers ),
|
|
Promise.all( pendingTargets )
|
|
|
|
] ).then( function ( dependencies ) {
|
|
|
|
var nodes = dependencies[ 0 ];
|
|
var inputAccessors = dependencies[ 1 ];
|
|
var outputAccessors = dependencies[ 2 ];
|
|
var samplers = dependencies[ 3 ];
|
|
var targets = dependencies[ 4 ];
|
|
|
|
var tracks = [];
|
|
|
|
for ( var i = 0, il = nodes.length; i < il; i ++ ) {
|
|
|
|
var node = nodes[ i ];
|
|
var inputAccessor = inputAccessors[ i ];
|
|
var outputAccessor = outputAccessors[ i ];
|
|
var sampler = samplers[ i ];
|
|
var target = targets[ i ];
|
|
|
|
if ( node === undefined ) continue;
|
|
|
|
node.updateMatrix();
|
|
node.matrixAutoUpdate = true;
|
|
|
|
var TypedKeyframeTrack;
|
|
|
|
switch ( PATH_PROPERTIES[ target.path ] ) {
|
|
|
|
case PATH_PROPERTIES.weights:
|
|
|
|
TypedKeyframeTrack = NumberKeyframeTrack;
|
|
break;
|
|
|
|
case PATH_PROPERTIES.rotation:
|
|
|
|
TypedKeyframeTrack = QuaternionKeyframeTrack;
|
|
break;
|
|
|
|
case PATH_PROPERTIES.position:
|
|
case PATH_PROPERTIES.scale:
|
|
default:
|
|
|
|
TypedKeyframeTrack = VectorKeyframeTrack;
|
|
break;
|
|
|
|
}
|
|
|
|
var targetName = node.name ? node.name : node.uuid;
|
|
|
|
var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : InterpolateLinear;
|
|
|
|
var targetNames = [];
|
|
|
|
if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
|
|
|
|
// Node may be a Group (glTF mesh with several primitives) or a Mesh.
|
|
node.traverse( function ( object ) {
|
|
|
|
if ( object.isMesh === true && object.morphTargetInfluences ) {
|
|
|
|
targetNames.push( object.name ? object.name : object.uuid );
|
|
|
|
}
|
|
|
|
} );
|
|
|
|
} else {
|
|
|
|
targetNames.push( targetName );
|
|
|
|
}
|
|
|
|
var outputArray = outputAccessor.array;
|
|
|
|
if ( outputAccessor.normalized ) {
|
|
|
|
var scale;
|
|
|
|
if ( outputArray.constructor === Int8Array ) {
|
|
|
|
scale = 1 / 127;
|
|
|
|
} else if ( outputArray.constructor === Uint8Array ) {
|
|
|
|
scale = 1 / 255;
|
|
|
|
} else if ( outputArray.constructor == Int16Array ) {
|
|
|
|
scale = 1 / 32767;
|
|
|
|
} else if ( outputArray.constructor === Uint16Array ) {
|
|
|
|
scale = 1 / 65535;
|
|
|
|
} else {
|
|
|
|
throw new Error( 'THREE.GLTFLoader: Unsupported output accessor component type.' );
|
|
|
|
}
|
|
|
|
var scaled = new Float32Array( outputArray.length );
|
|
|
|
for ( var j = 0, jl = outputArray.length; j < jl; j ++ ) {
|
|
|
|
scaled[ j ] = outputArray[ j ] * scale;
|
|
|
|
}
|
|
|
|
outputArray = scaled;
|
|
|
|
}
|
|
|
|
for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {
|
|
|
|
var track = new TypedKeyframeTrack(
|
|
targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
|
|
inputAccessor.array,
|
|
outputArray,
|
|
interpolation
|
|
);
|
|
|
|
// 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 );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
var name = animationDef.name ? animationDef.name : 'animation_' + animationIndex;
|
|
|
|
return new AnimationClip( name, undefined, tracks );
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
|
|
* @param {number} nodeIndex
|
|
* @return {Promise<Object3D>}
|
|
*/
|
|
GLTFParser.prototype.loadNode = function ( nodeIndex ) {
|
|
|
|
var json = this.json;
|
|
var extensions = this.extensions;
|
|
var parser = this;
|
|
|
|
var nodeDef = json.nodes[ nodeIndex ];
|
|
|
|
// reserve node's name before its dependencies, so the root has the intended name.
|
|
var nodeName = nodeDef.name ? parser.createUniqueName( nodeDef.name ) : '';
|
|
|
|
return ( function () {
|
|
|
|
var pending = [];
|
|
|
|
if ( nodeDef.mesh !== undefined ) {
|
|
|
|
pending.push( parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) {
|
|
|
|
var node = parser._getNodeRef( parser.meshCache, nodeDef.mesh, 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 ( var i = 0, il = nodeDef.weights.length; i < il; i ++ ) {
|
|
|
|
o.morphTargetInfluences[ i ] = nodeDef.weights[ i ];
|
|
|
|
}
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
return node;
|
|
|
|
} ) );
|
|
|
|
}
|
|
|
|
if ( nodeDef.camera !== undefined ) {
|
|
|
|
pending.push( parser.getDependency( 'camera', nodeDef.camera ).then( function ( camera ) {
|
|
|
|
return parser._getNodeRef( parser.cameraCache, nodeDef.camera, camera );
|
|
|
|
} ) );
|
|
|
|
}
|
|
|
|
parser._invokeAll( function ( ext ) {
|
|
|
|
return ext.createNodeAttachment && ext.createNodeAttachment( nodeIndex );
|
|
|
|
} ).forEach( function ( promise ) {
|
|
|
|
pending.push( promise );
|
|
|
|
} );
|
|
|
|
return Promise.all( pending );
|
|
|
|
}() ).then( function ( objects ) {
|
|
|
|
var node;
|
|
|
|
// .isBone isn't in glTF spec. See ._markDefs
|
|
if ( nodeDef.isBone === true ) {
|
|
|
|
node = new Bone();
|
|
|
|
} else if ( objects.length > 1 ) {
|
|
|
|
node = new Group();
|
|
|
|
} else if ( objects.length === 1 ) {
|
|
|
|
node = objects[ 0 ];
|
|
|
|
} else {
|
|
|
|
node = new Object3D();
|
|
|
|
}
|
|
|
|
if ( node !== objects[ 0 ] ) {
|
|
|
|
for ( var i = 0, il = objects.length; i < il; i ++ ) {
|
|
|
|
node.add( objects[ i ] );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ( nodeDef.name ) {
|
|
|
|
node.userData.name = nodeDef.name;
|
|
node.name = nodeName;
|
|
|
|
}
|
|
|
|
assignExtrasToUserData( node, nodeDef );
|
|
|
|
if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );
|
|
|
|
if ( nodeDef.matrix !== undefined ) {
|
|
|
|
var matrix = new Matrix4();
|
|
matrix.fromArray( nodeDef.matrix );
|
|
node.applyMatrix4( 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 );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
parser.associations.set( node, { type: 'nodes', index: nodeIndex } );
|
|
|
|
return node;
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
/**
|
|
* Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
|
|
* @param {number} sceneIndex
|
|
* @return {Promise<Group>}
|
|
*/
|
|
GLTFParser.prototype.loadScene = function () {
|
|
|
|
// scene node hierachy builder
|
|
|
|
function buildNodeHierachy( nodeId, parentObject, json, parser ) {
|
|
|
|
var nodeDef = json.nodes[ nodeId ];
|
|
|
|
return parser.getDependency( 'node', nodeId ).then( function ( node ) {
|
|
|
|
if ( nodeDef.skin === undefined ) return node;
|
|
|
|
// build skeleton here as well
|
|
|
|
var skinEntry;
|
|
|
|
return parser.getDependency( 'skin', nodeDef.skin ).then( function ( skin ) {
|
|
|
|
skinEntry = skin;
|
|
|
|
var pendingJoints = [];
|
|
|
|
for ( var i = 0, il = skinEntry.joints.length; i < il; i ++ ) {
|
|
|
|
pendingJoints.push( parser.getDependency( 'node', skinEntry.joints[ i ] ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pendingJoints );
|
|
|
|
} ).then( function ( jointNodes ) {
|
|
|
|
node.traverse( function ( mesh ) {
|
|
|
|
if ( ! mesh.isMesh ) return;
|
|
|
|
var bones = [];
|
|
var boneInverses = [];
|
|
|
|
for ( var j = 0, jl = jointNodes.length; j < jl; j ++ ) {
|
|
|
|
var jointNode = jointNodes[ j ];
|
|
|
|
if ( jointNode ) {
|
|
|
|
bones.push( jointNode );
|
|
|
|
var mat = new 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 Skeleton( bones, boneInverses ), mesh.matrixWorld );
|
|
|
|
} );
|
|
|
|
return node;
|
|
|
|
} );
|
|
|
|
} ).then( function ( node ) {
|
|
|
|
// build node hierachy
|
|
|
|
parentObject.add( node );
|
|
|
|
var pending = [];
|
|
|
|
if ( nodeDef.children ) {
|
|
|
|
var children = nodeDef.children;
|
|
|
|
for ( var i = 0, il = children.length; i < il; i ++ ) {
|
|
|
|
var child = children[ i ];
|
|
pending.push( buildNodeHierachy( child, node, json, parser ) );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return Promise.all( pending );
|
|
|
|
} );
|
|
|
|
}
|
|
|
|
return function loadScene( sceneIndex ) {
|
|
|
|
var json = this.json;
|
|
var extensions = this.extensions;
|
|
var sceneDef = this.json.scenes[ sceneIndex ];
|
|
var parser = this;
|
|
|
|
// Loader returns Group, not Scene.
|
|
// See: https://github.com/mrdoob/three.js/issues/18342#issuecomment-578981172
|
|
var scene = new Group();
|
|
if ( sceneDef.name ) scene.name = parser.createUniqueName( sceneDef.name );
|
|
|
|
assignExtrasToUserData( scene, sceneDef );
|
|
|
|
if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );
|
|
|
|
var nodeIds = sceneDef.nodes || [];
|
|
|
|
var pending = [];
|
|
|
|
for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {
|
|
|
|
pending.push( buildNodeHierachy( nodeIds[ i ], scene, json, parser ) );
|
|
|
|
}
|
|
|
|
return Promise.all( pending ).then( function () {
|
|
|
|
return scene;
|
|
|
|
} );
|
|
|
|
};
|
|
|
|
}();
|
|
|
|
return GLTFLoader;
|
|
|
|
} )();
|
|
|
|
export { GLTFLoader };
|