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@@ -0,0 +1,4663 @@
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+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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+ ClampToEdgeWrapping,
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+ Color,
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+ ColorManagement,
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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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+ InstancedMesh,
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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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+ LinearSRGBColorSpace,
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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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+ Quaternion,
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+ QuaternionKeyframeTrack,
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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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+ Texture,
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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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+ SRGBColorSpace,
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+ InstancedBufferAttribute
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+} from 'three';
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+import { toTrianglesDrawMode } from '../utils/BufferGeometryUtils.js';
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+
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+class GLTFLoader extends Loader {
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+
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+ constructor( manager ) {
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+
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+ super( manager );
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+
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+ this.dracoLoader = null;
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+ this.ktx2Loader = null;
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+ this.meshoptDecoder = null;
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+
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+ this.pluginCallbacks = [];
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsClearcoatExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFTextureBasisUExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFTextureWebPExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFTextureAVIFExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsSheenExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsTransmissionExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsVolumeExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsIorExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsEmissiveStrengthExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsSpecularExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsIridescenceExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsAnisotropyExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMaterialsBumpExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFLightsExtension( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMeshoptCompression( parser );
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+
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+ } );
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+
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+ this.register( function ( parser ) {
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+
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+ return new GLTFMeshGpuInstancing( parser );
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+
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+ } );
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+
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+ }
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+
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+ load( url, onLoad, onProgress, onError ) {
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+
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+ const scope = this;
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+
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+ let resourcePath;
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+
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+ if ( this.resourcePath !== '' ) {
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+
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+ resourcePath = this.resourcePath;
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+
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+ } else if ( this.path !== '' ) {
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+
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+ // If a base path is set, resources will be relative paths from that plus the relative path of the gltf file
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+ // Example path = 'https://my-cnd-server.com/', url = 'assets/models/model.gltf'
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+ // resourcePath = 'https://my-cnd-server.com/assets/models/'
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+ // referenced resource 'model.bin' will be loaded from 'https://my-cnd-server.com/assets/models/model.bin'
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+ // referenced resource '../textures/texture.png' will be loaded from 'https://my-cnd-server.com/assets/textures/texture.png'
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+ const relativeUrl = LoaderUtils.extractUrlBase( url );
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+ resourcePath = LoaderUtils.resolveURL( relativeUrl, this.path );
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+
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+ } else {
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+
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+ resourcePath = LoaderUtils.extractUrlBase( url );
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+
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+ }
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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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+
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+ const _onError = function ( e ) {
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+
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+ if ( onError ) {
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+
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+ onError( e );
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+
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+ } else {
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+
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+ console.error( e );
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+
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+ }
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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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+ };
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+
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+ const loader = new FileLoader( this.manager );
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+
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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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+
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+ loader.load( url, function ( data ) {
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+
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+ try {
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+
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+ scope.parse( data, resourcePath, function ( gltf ) {
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+
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+ onLoad( gltf );
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+
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+ scope.manager.itemEnd( url );
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+
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+ }, _onError );
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+
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+ } catch ( e ) {
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+
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+ _onError( e );
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+
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+ }
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+
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+ }, onProgress, _onError );
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+
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+ }
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+
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+ setDRACOLoader( dracoLoader ) {
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+
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+ this.dracoLoader = dracoLoader;
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+ return this;
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+
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+ }
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+
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+ setDDSLoader() {
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+
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+ throw new Error(
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+
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+ 'THREE.GLTFLoader: "MSFT_texture_dds" no longer supported. Please update to "KHR_texture_basisu".'
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+
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+ );
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+
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+ }
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+
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+ setKTX2Loader( ktx2Loader ) {
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+
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+ this.ktx2Loader = ktx2Loader;
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+ return this;
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+
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+ }
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+
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+ setMeshoptDecoder( meshoptDecoder ) {
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+
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+ this.meshoptDecoder = meshoptDecoder;
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+ return this;
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+
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+ }
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+
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+ register( callback ) {
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+
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+ if ( this.pluginCallbacks.indexOf( callback ) === - 1 ) {
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+
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+ this.pluginCallbacks.push( callback );
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+
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+ }
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+
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+ return this;
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+
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+ }
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+
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+ unregister( callback ) {
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+
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+ if ( this.pluginCallbacks.indexOf( callback ) !== - 1 ) {
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+
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+ this.pluginCallbacks.splice( this.pluginCallbacks.indexOf( callback ), 1 );
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+
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+ }
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+
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+ return this;
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+
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+ }
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+
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+ parse( data, path, onLoad, onError ) {
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+
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+ let json;
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+ const extensions = {};
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+ const plugins = {};
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+ const textDecoder = new TextDecoder();
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+
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+ if ( typeof data === 'string' ) {
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+
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+ json = JSON.parse( data );
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+
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+ } else if ( data instanceof ArrayBuffer ) {
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+
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+ const magic = textDecoder.decode( new Uint8Array( data, 0, 4 ) );
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+
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+ if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
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+
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+ try {
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+
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+ extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
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+
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+ } catch ( error ) {
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+
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+ if ( onError ) onError( error );
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+ return;
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+
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+ }
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+
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+ json = JSON.parse( extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content );
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+
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+ } else {
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+
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+ json = JSON.parse( textDecoder.decode( data ) );
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+
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+ }
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+
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+ } else {
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+
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+ json = data;
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+
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+ }
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+
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+ if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
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+
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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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+ }
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+
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+ const parser = new GLTFParser( json, {
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+
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+ path: path || this.resourcePath || '',
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+ crossOrigin: this.crossOrigin,
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+ requestHeader: this.requestHeader,
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+ manager: this.manager,
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+ ktx2Loader: this.ktx2Loader,
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+ meshoptDecoder: this.meshoptDecoder
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+
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+ } );
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+
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+ parser.fileLoader.setRequestHeader( this.requestHeader );
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+
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+ for ( let i = 0; i < this.pluginCallbacks.length; i ++ ) {
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+
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+ const plugin = this.pluginCallbacks[ i ]( parser );
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+
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+ if ( ! plugin.name ) console.error( 'THREE.GLTFLoader: Invalid plugin found: missing name' );
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+
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+ plugins[ plugin.name ] = plugin;
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+
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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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+ }
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+
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+ if ( json.extensionsUsed ) {
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+
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+ for ( let i = 0; i < json.extensionsUsed.length; ++ i ) {
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+
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+ const extensionName = json.extensionsUsed[ i ];
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+ const extensionsRequired = json.extensionsRequired || [];
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+
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+ switch ( extensionName ) {
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+
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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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+
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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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+
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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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+
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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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+
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+ default:
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+
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+ if ( extensionsRequired.indexOf( extensionName ) >= 0 && plugins[ extensionName ] === undefined ) {
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+
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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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+
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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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+
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+ parseAsync( data, path ) {
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+
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+ const scope = this;
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+
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+ return new Promise( function ( resolve, reject ) {
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+
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+ scope.parse( data, path, resolve, reject );
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+
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+ } );
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+
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+ }
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+
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+}
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+
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+/* GLTFREGISTRY */
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+
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+function GLTFRegistry() {
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+
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+ let objects = {};
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+
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+ return {
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+
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+ get: function ( key ) {
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+
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+ return objects[ key ];
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+
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+ },
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+
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+ add: function ( key, object ) {
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+
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+ objects[ key ] = object;
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+
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+ },
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+
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+ remove: function ( key ) {
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+
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+ delete objects[ key ];
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+
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+ },
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+
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+ removeAll: function () {
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+
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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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+
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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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+
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+const EXTENSIONS = {
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+ KHR_BINARY_GLTF: 'KHR_binary_glTF',
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|
+ KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
|
|
|
+ KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
|
|
|
+ KHR_MATERIALS_CLEARCOAT: 'KHR_materials_clearcoat',
|
|
|
+ KHR_MATERIALS_IOR: 'KHR_materials_ior',
|
|
|
+ KHR_MATERIALS_SHEEN: 'KHR_materials_sheen',
|
|
|
+ KHR_MATERIALS_SPECULAR: 'KHR_materials_specular',
|
|
|
+ KHR_MATERIALS_TRANSMISSION: 'KHR_materials_transmission',
|
|
|
+ KHR_MATERIALS_IRIDESCENCE: 'KHR_materials_iridescence',
|
|
|
+ KHR_MATERIALS_ANISOTROPY: 'KHR_materials_anisotropy',
|
|
|
+ KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
|
|
|
+ KHR_MATERIALS_VOLUME: 'KHR_materials_volume',
|
|
|
+ KHR_TEXTURE_BASISU: 'KHR_texture_basisu',
|
|
|
+ KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
|
|
|
+ KHR_MESH_QUANTIZATION: 'KHR_mesh_quantization',
|
|
|
+ KHR_MATERIALS_EMISSIVE_STRENGTH: 'KHR_materials_emissive_strength',
|
|
|
+ EXT_MATERIALS_BUMP: 'EXT_materials_bump',
|
|
|
+ EXT_TEXTURE_WEBP: 'EXT_texture_webp',
|
|
|
+ EXT_TEXTURE_AVIF: 'EXT_texture_avif',
|
|
|
+ EXT_MESHOPT_COMPRESSION: 'EXT_meshopt_compression',
|
|
|
+ EXT_MESH_GPU_INSTANCING: 'EXT_mesh_gpu_instancing'
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * Punctual Lights Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_lights_punctual
|
|
|
+ */
|
|
|
+class GLTFLightsExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
|
|
|
+
|
|
|
+ // Object3D instance caches
|
|
|
+ this.cache = { refs: {}, uses: {} };
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _markDefs() {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const nodeDefs = this.parser.json.nodes || [];
|
|
|
+
|
|
|
+ for ( let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
|
|
|
+
|
|
|
+ const nodeDef = nodeDefs[ nodeIndex ];
|
|
|
+
|
|
|
+ if ( nodeDef.extensions
|
|
|
+ && nodeDef.extensions[ this.name ]
|
|
|
+ && nodeDef.extensions[ this.name ].light !== undefined ) {
|
|
|
+
|
|
|
+ parser._addNodeRef( this.cache, nodeDef.extensions[ this.name ].light );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _loadLight( lightIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const cacheKey = 'light:' + lightIndex;
|
|
|
+ let dependency = parser.cache.get( cacheKey );
|
|
|
+
|
|
|
+ if ( dependency ) return dependency;
|
|
|
+
|
|
|
+ const json = parser.json;
|
|
|
+ const extensions = ( json.extensions && json.extensions[ this.name ] ) || {};
|
|
|
+ const lightDefs = extensions.lights || [];
|
|
|
+ const lightDef = lightDefs[ lightIndex ];
|
|
|
+ let lightNode;
|
|
|
+
|
|
|
+ const color = new Color( 0xffffff );
|
|
|
+
|
|
|
+ if ( lightDef.color !== undefined ) color.setRGB( lightDef.color[ 0 ], lightDef.color[ 1 ], lightDef.color[ 2 ], LinearSRGBColorSpace );
|
|
|
+
|
|
|
+ const range = lightDef.range !== undefined ? lightDef.range : 0;
|
|
|
+
|
|
|
+ switch ( lightDef.type ) {
|
|
|
+
|
|
|
+ case 'directional':
|
|
|
+ lightNode = new DirectionalLight( color );
|
|
|
+ lightNode.target.position.set( 0, 0, - 1 );
|
|
|
+ lightNode.add( lightNode.target );
|
|
|
+ break;
|
|
|
+
|
|
|
+ case 'point':
|
|
|
+ lightNode = new PointLight( color );
|
|
|
+ lightNode.distance = range;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case 'spot':
|
|
|
+ lightNode = new SpotLight( color );
|
|
|
+ lightNode.distance = range;
|
|
|
+ // Handle spotlight properties.
|
|
|
+ lightDef.spot = lightDef.spot || {};
|
|
|
+ lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
|
|
|
+ lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
|
|
|
+ lightNode.angle = lightDef.spot.outerConeAngle;
|
|
|
+ lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
|
|
|
+ lightNode.target.position.set( 0, 0, - 1 );
|
|
|
+ lightNode.add( lightNode.target );
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ throw new Error( 'THREE.GLTFLoader: Unexpected light type: ' + lightDef.type );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Some lights (e.g. spot) default to a position other than the origin. Reset the position
|
|
|
+ // here, because node-level parsing will only override position if explicitly specified.
|
|
|
+ lightNode.position.set( 0, 0, 0 );
|
|
|
+
|
|
|
+ lightNode.decay = 2;
|
|
|
+
|
|
|
+ assignExtrasToUserData( lightNode, lightDef );
|
|
|
+
|
|
|
+ if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;
|
|
|
+
|
|
|
+ lightNode.name = parser.createUniqueName( lightDef.name || ( 'light_' + lightIndex ) );
|
|
|
+
|
|
|
+ dependency = Promise.resolve( lightNode );
|
|
|
+
|
|
|
+ parser.cache.add( cacheKey, dependency );
|
|
|
+
|
|
|
+ return dependency;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getDependency( type, index ) {
|
|
|
+
|
|
|
+ if ( type !== 'light' ) return;
|
|
|
+
|
|
|
+ return this._loadLight( index );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ createNodeAttachment( nodeIndex ) {
|
|
|
+
|
|
|
+ const self = this;
|
|
|
+ const parser = this.parser;
|
|
|
+ const json = parser.json;
|
|
|
+ const nodeDef = json.nodes[ nodeIndex ];
|
|
|
+ const lightDef = ( nodeDef.extensions && nodeDef.extensions[ this.name ] ) || {};
|
|
|
+ const lightIndex = lightDef.light;
|
|
|
+
|
|
|
+ if ( lightIndex === undefined ) return null;
|
|
|
+
|
|
|
+ return this._loadLight( lightIndex ).then( function ( light ) {
|
|
|
+
|
|
|
+ return parser._getNodeRef( self.cache, lightIndex, light );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Unlit Materials Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_unlit
|
|
|
+ */
|
|
|
+class GLTFMaterialsUnlitExtension {
|
|
|
+
|
|
|
+ constructor() {
|
|
|
+
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType() {
|
|
|
+
|
|
|
+ return MeshBasicMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendParams( materialParams, materialDef, parser ) {
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ materialParams.color = new Color( 1.0, 1.0, 1.0 );
|
|
|
+ materialParams.opacity = 1.0;
|
|
|
+
|
|
|
+ const metallicRoughness = materialDef.pbrMetallicRoughness;
|
|
|
+
|
|
|
+ if ( metallicRoughness ) {
|
|
|
+
|
|
|
+ if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
|
|
|
+
|
|
|
+ const array = metallicRoughness.baseColorFactor;
|
|
|
+
|
|
|
+ materialParams.color.setRGB( array[ 0 ], array[ 1 ], array[ 2 ], LinearSRGBColorSpace );
|
|
|
+ materialParams.opacity = array[ 3 ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( metallicRoughness.baseColorTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture, SRGBColorSpace ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials Emissive Strength Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/blob/5768b3ce0ef32bc39cdf1bef10b948586635ead3/extensions/2.0/Khronos/KHR_materials_emissive_strength/README.md
|
|
|
+ */
|
|
|
+class GLTFMaterialsEmissiveStrengthExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_EMISSIVE_STRENGTH;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const emissiveStrength = materialDef.extensions[ this.name ].emissiveStrength;
|
|
|
+
|
|
|
+ if ( emissiveStrength !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.emissiveIntensity = emissiveStrength;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Clearcoat Materials Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
|
|
|
+ */
|
|
|
+class GLTFMaterialsClearcoatExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ const scale = extension.clearcoatNormalTexture.scale;
|
|
|
+
|
|
|
+ materialParams.clearcoatNormalScale = new Vector2( scale, scale );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Iridescence Materials Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_iridescence
|
|
|
+ */
|
|
|
+class GLTFMaterialsIridescenceExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_IRIDESCENCE;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ if ( extension.iridescenceFactor !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.iridescence = extension.iridescenceFactor;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.iridescenceTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'iridescenceMap', extension.iridescenceTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.iridescenceIor !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.iridescenceIOR = extension.iridescenceIor;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( materialParams.iridescenceThicknessRange === undefined ) {
|
|
|
+
|
|
|
+ materialParams.iridescenceThicknessRange = [ 100, 400 ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.iridescenceThicknessMinimum !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.iridescenceThicknessRange[ 0 ] = extension.iridescenceThicknessMinimum;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.iridescenceThicknessMaximum !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.iridescenceThicknessRange[ 1 ] = extension.iridescenceThicknessMaximum;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.iridescenceThicknessTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'iridescenceThicknessMap', extension.iridescenceThicknessTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Sheen Materials Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_sheen
|
|
|
+ */
|
|
|
+class GLTFMaterialsSheenExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_SHEEN;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ materialParams.sheenColor = new Color( 0, 0, 0 );
|
|
|
+ materialParams.sheenRoughness = 0;
|
|
|
+ materialParams.sheen = 1;
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ if ( extension.sheenColorFactor !== undefined ) {
|
|
|
+
|
|
|
+ const colorFactor = extension.sheenColorFactor;
|
|
|
+ materialParams.sheenColor.setRGB( colorFactor[ 0 ], colorFactor[ 1 ], colorFactor[ 2 ], LinearSRGBColorSpace );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.sheenRoughnessFactor !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.sheenRoughness = extension.sheenRoughnessFactor;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.sheenColorTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'sheenColorMap', extension.sheenColorTexture, SRGBColorSpace ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.sheenRoughnessTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'sheenRoughnessMap', extension.sheenRoughnessTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ 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
|
|
|
+ */
|
|
|
+class GLTFMaterialsTransmissionExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const 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 );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials Volume Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_volume
|
|
|
+ */
|
|
|
+class GLTFMaterialsVolumeExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_VOLUME;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ materialParams.thickness = extension.thicknessFactor !== undefined ? extension.thicknessFactor : 0;
|
|
|
+
|
|
|
+ if ( extension.thicknessTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'thicknessMap', extension.thicknessTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ materialParams.attenuationDistance = extension.attenuationDistance || Infinity;
|
|
|
+
|
|
|
+ const colorArray = extension.attenuationColor || [ 1, 1, 1 ];
|
|
|
+ materialParams.attenuationColor = new Color().setRGB( colorArray[ 0 ], colorArray[ 1 ], colorArray[ 2 ], LinearSRGBColorSpace );
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials ior Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_ior
|
|
|
+ */
|
|
|
+class GLTFMaterialsIorExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_IOR;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ materialParams.ior = extension.ior !== undefined ? extension.ior : 1.5;
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials specular Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_specular
|
|
|
+ */
|
|
|
+class GLTFMaterialsSpecularExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ materialParams.specularIntensity = extension.specularFactor !== undefined ? extension.specularFactor : 1.0;
|
|
|
+
|
|
|
+ if ( extension.specularTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'specularIntensityMap', extension.specularTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const colorArray = extension.specularColorFactor || [ 1, 1, 1 ];
|
|
|
+ materialParams.specularColor = new Color().setRGB( colorArray[ 0 ], colorArray[ 1 ], colorArray[ 2 ], LinearSRGBColorSpace );
|
|
|
+
|
|
|
+ if ( extension.specularColorTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'specularColorMap', extension.specularColorTexture, SRGBColorSpace ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials bump Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/EXT_materials_bump
|
|
|
+ */
|
|
|
+class GLTFMaterialsBumpExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.EXT_MATERIALS_BUMP;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ materialParams.bumpScale = extension.bumpFactor !== undefined ? extension.bumpFactor : 1.0;
|
|
|
+
|
|
|
+ if ( extension.bumpTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'bumpMap', extension.bumpTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Materials anisotropy Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_anisotropy
|
|
|
+ */
|
|
|
+class GLTFMaterialsAnisotropyExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_MATERIALS_ANISOTROPY;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) return null;
|
|
|
+
|
|
|
+ return MeshPhysicalMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendMaterialParams( materialIndex, materialParams ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const materialDef = parser.json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ if ( ! materialDef.extensions || ! materialDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return Promise.resolve();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const extension = materialDef.extensions[ this.name ];
|
|
|
+
|
|
|
+ if ( extension.anisotropyStrength !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.anisotropy = extension.anisotropyStrength;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.anisotropyRotation !== undefined ) {
|
|
|
+
|
|
|
+ materialParams.anisotropyRotation = extension.anisotropyRotation;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( extension.anisotropyTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'anisotropyMap', extension.anisotropyTexture ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * BasisU Texture Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_basisu
|
|
|
+ */
|
|
|
+class GLTFTextureBasisUExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadTexture( textureIndex ) {
|
|
|
+
|
|
|
+ const parser = this.parser;
|
|
|
+ const json = parser.json;
|
|
|
+
|
|
|
+ const textureDef = json.textures[ textureIndex ];
|
|
|
+
|
|
|
+ if ( ! textureDef.extensions || ! textureDef.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const extension = textureDef.extensions[ this.name ];
|
|
|
+ const loader = parser.options.ktx2Loader;
|
|
|
+
|
|
|
+ if ( ! loader ) {
|
|
|
+
|
|
|
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) {
|
|
|
+
|
|
|
+ throw new Error( 'THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures' );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ // Assumes that the extension is optional and that a fallback texture is present
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return parser.loadTextureImage( textureIndex, extension.source, loader );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * WebP Texture Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_webp
|
|
|
+ */
|
|
|
+class GLTFTextureWebPExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
|
|
|
+ this.isSupported = null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadTexture( textureIndex ) {
|
|
|
+
|
|
|
+ const name = this.name;
|
|
|
+ const parser = this.parser;
|
|
|
+ const json = parser.json;
|
|
|
+
|
|
|
+ const textureDef = json.textures[ textureIndex ];
|
|
|
+
|
|
|
+ if ( ! textureDef.extensions || ! textureDef.extensions[ name ] ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const extension = textureDef.extensions[ name ];
|
|
|
+ const source = json.images[ extension.source ];
|
|
|
+
|
|
|
+ let loader = parser.textureLoader;
|
|
|
+ if ( source.uri ) {
|
|
|
+
|
|
|
+ const handler = parser.options.manager.getHandler( source.uri );
|
|
|
+ if ( handler !== null ) loader = handler;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.detectSupport().then( function ( isSupported ) {
|
|
|
+
|
|
|
+ if ( isSupported ) return parser.loadTextureImage( textureIndex, extension.source, loader );
|
|
|
+
|
|
|
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( name ) >= 0 ) {
|
|
|
+
|
|
|
+ throw new Error( 'THREE.GLTFLoader: WebP required by asset but unsupported.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Fall back to PNG or JPEG.
|
|
|
+ return parser.loadTexture( textureIndex );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ detectSupport() {
|
|
|
+
|
|
|
+ if ( ! this.isSupported ) {
|
|
|
+
|
|
|
+ this.isSupported = new Promise( function ( resolve ) {
|
|
|
+
|
|
|
+ const image = new Image();
|
|
|
+
|
|
|
+ // Lossy test image. Support for lossy images doesn't guarantee support for all
|
|
|
+ // WebP images, unfortunately.
|
|
|
+ image.src = 'data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA';
|
|
|
+
|
|
|
+ image.onload = image.onerror = function () {
|
|
|
+
|
|
|
+ resolve( image.height === 1 );
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.isSupported;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * AVIF Texture Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_texture_avif
|
|
|
+ */
|
|
|
+class GLTFTextureAVIFExtension {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.parser = parser;
|
|
|
+ this.name = EXTENSIONS.EXT_TEXTURE_AVIF;
|
|
|
+ this.isSupported = null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadTexture( textureIndex ) {
|
|
|
+
|
|
|
+ const name = this.name;
|
|
|
+ const parser = this.parser;
|
|
|
+ const json = parser.json;
|
|
|
+
|
|
|
+ const textureDef = json.textures[ textureIndex ];
|
|
|
+
|
|
|
+ if ( ! textureDef.extensions || ! textureDef.extensions[ name ] ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const extension = textureDef.extensions[ name ];
|
|
|
+ const source = json.images[ extension.source ];
|
|
|
+
|
|
|
+ let loader = parser.textureLoader;
|
|
|
+ if ( source.uri ) {
|
|
|
+
|
|
|
+ const handler = parser.options.manager.getHandler( source.uri );
|
|
|
+ if ( handler !== null ) loader = handler;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.detectSupport().then( function ( isSupported ) {
|
|
|
+
|
|
|
+ if ( isSupported ) return parser.loadTextureImage( textureIndex, extension.source, loader );
|
|
|
+
|
|
|
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( name ) >= 0 ) {
|
|
|
+
|
|
|
+ throw new Error( 'THREE.GLTFLoader: AVIF required by asset but unsupported.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Fall back to PNG or JPEG.
|
|
|
+ return parser.loadTexture( textureIndex );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ detectSupport() {
|
|
|
+
|
|
|
+ if ( ! this.isSupported ) {
|
|
|
+
|
|
|
+ this.isSupported = new Promise( function ( resolve ) {
|
|
|
+
|
|
|
+ const image = new Image();
|
|
|
+
|
|
|
+ // Lossy test image.
|
|
|
+ image.src = 'data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAAAAAAcGljdAAAAAAAAAAAAAAAAGxpYmF2aWYAAAAADnBpdG0AAAAAAAEAAAAeaWxvYwAAAABEAAABAAEAAAABAAABGgAAABcAAAAoaWluZgAAAAAAAQAAABppbmZlAgAAAAABAABhdjAxQ29sb3IAAAAAamlwcnAAAABLaXBjbwAAABRpc3BlAAAAAAAAAAEAAAABAAAAEHBpeGkAAAAAAwgICAAAAAxhdjFDgQAMAAAAABNjb2xybmNseAACAAIABoAAAAAXaXBtYQAAAAAAAAABAAEEAQKDBAAAAB9tZGF0EgAKCBgABogQEDQgMgkQAAAAB8dSLfI=';
|
|
|
+ image.onload = image.onerror = function () {
|
|
|
+
|
|
|
+ resolve( image.height === 1 );
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.isSupported;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * meshopt BufferView Compression Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_meshopt_compression
|
|
|
+ */
|
|
|
+class GLTFMeshoptCompression {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
|
|
|
+ this.parser = parser;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadBufferView( index ) {
|
|
|
+
|
|
|
+ const json = this.parser.json;
|
|
|
+ const bufferView = json.bufferViews[ index ];
|
|
|
+
|
|
|
+ if ( bufferView.extensions && bufferView.extensions[ this.name ] ) {
|
|
|
+
|
|
|
+ const extensionDef = bufferView.extensions[ this.name ];
|
|
|
+
|
|
|
+ const buffer = this.parser.getDependency( 'buffer', extensionDef.buffer );
|
|
|
+ const decoder = this.parser.options.meshoptDecoder;
|
|
|
+
|
|
|
+ if ( ! decoder || ! decoder.supported ) {
|
|
|
+
|
|
|
+ if ( json.extensionsRequired && json.extensionsRequired.indexOf( this.name ) >= 0 ) {
|
|
|
+
|
|
|
+ throw new Error( 'THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files' );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ // Assumes that the extension is optional and that fallback buffer data is present
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return buffer.then( function ( res ) {
|
|
|
+
|
|
|
+ const byteOffset = extensionDef.byteOffset || 0;
|
|
|
+ const byteLength = extensionDef.byteLength || 0;
|
|
|
+
|
|
|
+ const count = extensionDef.count;
|
|
|
+ const stride = extensionDef.byteStride;
|
|
|
+
|
|
|
+ const source = new Uint8Array( res, byteOffset, byteLength );
|
|
|
+
|
|
|
+ if ( decoder.decodeGltfBufferAsync ) {
|
|
|
+
|
|
|
+ return decoder.decodeGltfBufferAsync( count, stride, source, extensionDef.mode, extensionDef.filter ).then( function ( res ) {
|
|
|
+
|
|
|
+ return res.buffer;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ // Support for MeshoptDecoder 0.18 or earlier, without decodeGltfBufferAsync
|
|
|
+ return decoder.ready.then( function () {
|
|
|
+
|
|
|
+ const result = new ArrayBuffer( count * stride );
|
|
|
+ decoder.decodeGltfBuffer( new Uint8Array( result ), count, stride, source, extensionDef.mode, extensionDef.filter );
|
|
|
+ return result;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * GPU Instancing Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/EXT_mesh_gpu_instancing
|
|
|
+ *
|
|
|
+ */
|
|
|
+class GLTFMeshGpuInstancing {
|
|
|
+
|
|
|
+ constructor( parser ) {
|
|
|
+
|
|
|
+ this.name = EXTENSIONS.EXT_MESH_GPU_INSTANCING;
|
|
|
+ this.parser = parser;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ createNodeMesh( nodeIndex ) {
|
|
|
+
|
|
|
+ const json = this.parser.json;
|
|
|
+ const nodeDef = json.nodes[ nodeIndex ];
|
|
|
+
|
|
|
+ if ( ! nodeDef.extensions || ! nodeDef.extensions[ this.name ] ||
|
|
|
+ nodeDef.mesh === undefined ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const meshDef = json.meshes[ nodeDef.mesh ];
|
|
|
+
|
|
|
+ // No Points or Lines + Instancing support yet
|
|
|
+
|
|
|
+ for ( const primitive of meshDef.primitives ) {
|
|
|
+
|
|
|
+ if ( primitive.mode !== WEBGL_CONSTANTS.TRIANGLES &&
|
|
|
+ primitive.mode !== WEBGL_CONSTANTS.TRIANGLE_STRIP &&
|
|
|
+ primitive.mode !== WEBGL_CONSTANTS.TRIANGLE_FAN &&
|
|
|
+ primitive.mode !== undefined ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const extensionDef = nodeDef.extensions[ this.name ];
|
|
|
+ const attributesDef = extensionDef.attributes;
|
|
|
+
|
|
|
+ // @TODO: Can we support InstancedMesh + SkinnedMesh?
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+ const attributes = {};
|
|
|
+
|
|
|
+ for ( const key in attributesDef ) {
|
|
|
+
|
|
|
+ pending.push( this.parser.getDependency( 'accessor', attributesDef[ key ] ).then( accessor => {
|
|
|
+
|
|
|
+ attributes[ key ] = accessor;
|
|
|
+ return attributes[ key ];
|
|
|
+
|
|
|
+ } ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( pending.length < 1 ) {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ pending.push( this.parser.createNodeMesh( nodeIndex ) );
|
|
|
+
|
|
|
+ return Promise.all( pending ).then( results => {
|
|
|
+
|
|
|
+ const nodeObject = results.pop();
|
|
|
+ const meshes = nodeObject.isGroup ? nodeObject.children : [ nodeObject ];
|
|
|
+ const count = results[ 0 ].count; // All attribute counts should be same
|
|
|
+ const instancedMeshes = [];
|
|
|
+
|
|
|
+ for ( const mesh of meshes ) {
|
|
|
+
|
|
|
+ // Temporal variables
|
|
|
+ const m = new Matrix4();
|
|
|
+ const p = new Vector3();
|
|
|
+ const q = new Quaternion();
|
|
|
+ const s = new Vector3( 1, 1, 1 );
|
|
|
+
|
|
|
+ const instancedMesh = new InstancedMesh( mesh.geometry, mesh.material, count );
|
|
|
+
|
|
|
+ for ( let i = 0; i < count; i ++ ) {
|
|
|
+
|
|
|
+ if ( attributes.TRANSLATION ) {
|
|
|
+
|
|
|
+ p.fromBufferAttribute( attributes.TRANSLATION, i );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( attributes.ROTATION ) {
|
|
|
+
|
|
|
+ q.fromBufferAttribute( attributes.ROTATION, i );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( attributes.SCALE ) {
|
|
|
+
|
|
|
+ s.fromBufferAttribute( attributes.SCALE, i );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ instancedMesh.setMatrixAt( i, m.compose( p, q, s ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Add instance attributes to the geometry, excluding TRS.
|
|
|
+ for ( const attributeName in attributes ) {
|
|
|
+
|
|
|
+ if ( attributeName === '_COLOR_0' ) {
|
|
|
+
|
|
|
+ const attr = attributes[ attributeName ];
|
|
|
+ instancedMesh.instanceColor = new InstancedBufferAttribute( attr.array, attr.itemSize, attr.normalized );
|
|
|
+
|
|
|
+ } else if ( attributeName !== 'TRANSLATION' &&
|
|
|
+ attributeName !== 'ROTATION' &&
|
|
|
+ attributeName !== 'SCALE' ) {
|
|
|
+
|
|
|
+ mesh.geometry.setAttribute( attributeName, attributes[ attributeName ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Just in case
|
|
|
+ Object3D.prototype.copy.call( instancedMesh, mesh );
|
|
|
+
|
|
|
+ this.parser.assignFinalMaterial( instancedMesh );
|
|
|
+
|
|
|
+ instancedMeshes.push( instancedMesh );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( nodeObject.isGroup ) {
|
|
|
+
|
|
|
+ nodeObject.clear();
|
|
|
+
|
|
|
+ nodeObject.add( ... instancedMeshes );
|
|
|
+
|
|
|
+ return nodeObject;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return instancedMeshes[ 0 ];
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/* BINARY EXTENSION */
|
|
|
+const BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
|
|
|
+const BINARY_EXTENSION_HEADER_LENGTH = 12;
|
|
|
+const BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
|
|
|
+
|
|
|
+class GLTFBinaryExtension {
|
|
|
+
|
|
|
+ constructor( data ) {
|
|
|
+
|
|
|
+ this.name = EXTENSIONS.KHR_BINARY_GLTF;
|
|
|
+ this.content = null;
|
|
|
+ this.body = null;
|
|
|
+
|
|
|
+ const headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
|
|
|
+ const textDecoder = new TextDecoder();
|
|
|
+
|
|
|
+ this.header = {
|
|
|
+ magic: textDecoder.decode( 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.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
|
|
|
+ const chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
|
|
|
+ let chunkIndex = 0;
|
|
|
+
|
|
|
+ while ( chunkIndex < chunkContentsLength ) {
|
|
|
+
|
|
|
+ const chunkLength = chunkView.getUint32( chunkIndex, true );
|
|
|
+ chunkIndex += 4;
|
|
|
+
|
|
|
+ const chunkType = chunkView.getUint32( chunkIndex, true );
|
|
|
+ chunkIndex += 4;
|
|
|
+
|
|
|
+ if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
|
|
|
+
|
|
|
+ const contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
|
|
|
+ this.content = textDecoder.decode( contentArray );
|
|
|
+
|
|
|
+ } else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
|
|
|
+
|
|
|
+ const 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
|
|
|
+ */
|
|
|
+class GLTFDracoMeshCompressionExtension {
|
|
|
+
|
|
|
+ constructor( 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();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ decodePrimitive( primitive, parser ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const dracoLoader = this.dracoLoader;
|
|
|
+ const bufferViewIndex = primitive.extensions[ this.name ].bufferView;
|
|
|
+ const gltfAttributeMap = primitive.extensions[ this.name ].attributes;
|
|
|
+ const threeAttributeMap = {};
|
|
|
+ const attributeNormalizedMap = {};
|
|
|
+ const attributeTypeMap = {};
|
|
|
+
|
|
|
+ for ( const attributeName in gltfAttributeMap ) {
|
|
|
+
|
|
|
+ const threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
|
|
|
+
|
|
|
+ threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ for ( const attributeName in primitive.attributes ) {
|
|
|
+
|
|
|
+ const threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
|
|
|
+
|
|
|
+ if ( gltfAttributeMap[ attributeName ] !== undefined ) {
|
|
|
+
|
|
|
+ const accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
|
|
|
+ const componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
|
|
|
+
|
|
|
+ attributeTypeMap[ threeAttributeName ] = componentType.name;
|
|
|
+ attributeNormalizedMap[ threeAttributeName ] = accessorDef.normalized === true;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {
|
|
|
+
|
|
|
+ return new Promise( function ( resolve, reject ) {
|
|
|
+
|
|
|
+ dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {
|
|
|
+
|
|
|
+ for ( const attributeName in geometry.attributes ) {
|
|
|
+
|
|
|
+ const attribute = geometry.attributes[ attributeName ];
|
|
|
+ const normalized = attributeNormalizedMap[ attributeName ];
|
|
|
+
|
|
|
+ if ( normalized !== undefined ) attribute.normalized = normalized;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ resolve( geometry );
|
|
|
+
|
|
|
+ }, threeAttributeMap, attributeTypeMap, LinearSRGBColorSpace, reject );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Texture Transform Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_texture_transform
|
|
|
+ */
|
|
|
+class GLTFTextureTransformExtension {
|
|
|
+
|
|
|
+ constructor() {
|
|
|
+
|
|
|
+ this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ extendTexture( texture, transform ) {
|
|
|
+
|
|
|
+ if ( ( transform.texCoord === undefined || transform.texCoord === texture.channel )
|
|
|
+ && transform.offset === undefined
|
|
|
+ && transform.rotation === undefined
|
|
|
+ && transform.scale === undefined ) {
|
|
|
+
|
|
|
+ // See https://github.com/mrdoob/three.js/issues/21819.
|
|
|
+ return texture;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ texture = texture.clone();
|
|
|
+
|
|
|
+ if ( transform.texCoord !== undefined ) {
|
|
|
+
|
|
|
+ texture.channel = transform.texCoord;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ 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 );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ texture.needsUpdate = true;
|
|
|
+
|
|
|
+ return texture;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Mesh Quantization Extension
|
|
|
+ *
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization
|
|
|
+ */
|
|
|
+class GLTFMeshQuantizationExtension {
|
|
|
+
|
|
|
+ constructor() {
|
|
|
+
|
|
|
+ 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
|
|
|
+class GLTFCubicSplineInterpolant extends Interpolant {
|
|
|
+
|
|
|
+ constructor( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
|
|
|
+
|
|
|
+ super( parameterPositions, sampleValues, sampleSize, resultBuffer );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ copySampleValue_( index ) {
|
|
|
+
|
|
|
+ // Copies a sample value to the result buffer. See description of glTF
|
|
|
+ // CUBICSPLINE values layout in interpolate_() function below.
|
|
|
+
|
|
|
+ const result = this.resultBuffer,
|
|
|
+ values = this.sampleValues,
|
|
|
+ valueSize = this.valueSize,
|
|
|
+ offset = index * valueSize * 3 + valueSize;
|
|
|
+
|
|
|
+ for ( let i = 0; i !== valueSize; i ++ ) {
|
|
|
+
|
|
|
+ result[ i ] = values[ offset + i ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return result;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ interpolate_( i1, t0, t, t1 ) {
|
|
|
+
|
|
|
+ const result = this.resultBuffer;
|
|
|
+ const values = this.sampleValues;
|
|
|
+ const stride = this.valueSize;
|
|
|
+
|
|
|
+ const stride2 = stride * 2;
|
|
|
+ const stride3 = stride * 3;
|
|
|
+
|
|
|
+ const td = t1 - t0;
|
|
|
+
|
|
|
+ const p = ( t - t0 ) / td;
|
|
|
+ const pp = p * p;
|
|
|
+ const ppp = pp * p;
|
|
|
+
|
|
|
+ const offset1 = i1 * stride3;
|
|
|
+ const offset0 = offset1 - stride3;
|
|
|
+
|
|
|
+ const s2 = - 2 * ppp + 3 * pp;
|
|
|
+ const s3 = ppp - pp;
|
|
|
+ const s0 = 1 - s2;
|
|
|
+ const s1 = s3 - pp + p;
|
|
|
+
|
|
|
+ // Layout of keyframe output values for CUBICSPLINE animations:
|
|
|
+ // [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
|
|
|
+ for ( let i = 0; i !== stride; i ++ ) {
|
|
|
+
|
|
|
+ const p0 = values[ offset0 + i + stride ]; // splineVertex_k
|
|
|
+ const m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)
|
|
|
+ const p1 = values[ offset1 + i + stride ]; // splineVertex_k+1
|
|
|
+ const 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;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+const _q = new Quaternion();
|
|
|
+
|
|
|
+class GLTFCubicSplineQuaternionInterpolant extends GLTFCubicSplineInterpolant {
|
|
|
+
|
|
|
+ interpolate_( i1, t0, t, t1 ) {
|
|
|
+
|
|
|
+ const result = super.interpolate_( i1, t0, t, t1 );
|
|
|
+
|
|
|
+ _q.fromArray( result ).normalize().toArray( result );
|
|
|
+
|
|
|
+ return result;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/*********************************/
|
|
|
+/********** INTERNALS ************/
|
|
|
+/*********************************/
|
|
|
+
|
|
|
+/* CONSTANTS */
|
|
|
+
|
|
|
+const 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
|
|
|
+};
|
|
|
+
|
|
|
+const WEBGL_COMPONENT_TYPES = {
|
|
|
+ 5120: Int8Array,
|
|
|
+ 5121: Uint8Array,
|
|
|
+ 5122: Int16Array,
|
|
|
+ 5123: Uint16Array,
|
|
|
+ 5125: Uint32Array,
|
|
|
+ 5126: Float32Array
|
|
|
+};
|
|
|
+
|
|
|
+const WEBGL_FILTERS = {
|
|
|
+ 9728: NearestFilter,
|
|
|
+ 9729: LinearFilter,
|
|
|
+ 9984: NearestMipmapNearestFilter,
|
|
|
+ 9985: LinearMipmapNearestFilter,
|
|
|
+ 9986: NearestMipmapLinearFilter,
|
|
|
+ 9987: LinearMipmapLinearFilter
|
|
|
+};
|
|
|
+
|
|
|
+const WEBGL_WRAPPINGS = {
|
|
|
+ 33071: ClampToEdgeWrapping,
|
|
|
+ 33648: MirroredRepeatWrapping,
|
|
|
+ 10497: RepeatWrapping
|
|
|
+};
|
|
|
+
|
|
|
+const WEBGL_TYPE_SIZES = {
|
|
|
+ 'SCALAR': 1,
|
|
|
+ 'VEC2': 2,
|
|
|
+ 'VEC3': 3,
|
|
|
+ 'VEC4': 4,
|
|
|
+ 'MAT2': 4,
|
|
|
+ 'MAT3': 9,
|
|
|
+ 'MAT4': 16
|
|
|
+};
|
|
|
+
|
|
|
+const ATTRIBUTES = {
|
|
|
+ POSITION: 'position',
|
|
|
+ NORMAL: 'normal',
|
|
|
+ TANGENT: 'tangent',
|
|
|
+ TEXCOORD_0: 'uv',
|
|
|
+ TEXCOORD_1: 'uv1',
|
|
|
+ TEXCOORD_2: 'uv2',
|
|
|
+ TEXCOORD_3: 'uv3',
|
|
|
+ COLOR_0: 'color',
|
|
|
+ WEIGHTS_0: 'skinWeight',
|
|
|
+ JOINTS_0: 'skinIndex',
|
|
|
+};
|
|
|
+
|
|
|
+const PATH_PROPERTIES = {
|
|
|
+ scale: 'scale',
|
|
|
+ translation: 'position',
|
|
|
+ rotation: 'quaternion',
|
|
|
+ weights: 'morphTargetInfluences'
|
|
|
+};
|
|
|
+
|
|
|
+const 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
|
|
|
+};
|
|
|
+
|
|
|
+const ALPHA_MODES = {
|
|
|
+ OPAQUE: 'OPAQUE',
|
|
|
+ MASK: 'MASK',
|
|
|
+ BLEND: 'BLEND'
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * 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 ( const 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 ) {
|
|
|
+
|
|
|
+ let hasMorphPosition = false;
|
|
|
+ let hasMorphNormal = false;
|
|
|
+ let hasMorphColor = false;
|
|
|
+
|
|
|
+ for ( let i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const target = targets[ i ];
|
|
|
+
|
|
|
+ if ( target.POSITION !== undefined ) hasMorphPosition = true;
|
|
|
+ if ( target.NORMAL !== undefined ) hasMorphNormal = true;
|
|
|
+ if ( target.COLOR_0 !== undefined ) hasMorphColor = true;
|
|
|
+
|
|
|
+ if ( hasMorphPosition && hasMorphNormal && hasMorphColor ) break;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! hasMorphPosition && ! hasMorphNormal && ! hasMorphColor ) return Promise.resolve( geometry );
|
|
|
+
|
|
|
+ const pendingPositionAccessors = [];
|
|
|
+ const pendingNormalAccessors = [];
|
|
|
+ const pendingColorAccessors = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const target = targets[ i ];
|
|
|
+
|
|
|
+ if ( hasMorphPosition ) {
|
|
|
+
|
|
|
+ const pendingAccessor = target.POSITION !== undefined
|
|
|
+ ? parser.getDependency( 'accessor', target.POSITION )
|
|
|
+ : geometry.attributes.position;
|
|
|
+
|
|
|
+ pendingPositionAccessors.push( pendingAccessor );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( hasMorphNormal ) {
|
|
|
+
|
|
|
+ const pendingAccessor = target.NORMAL !== undefined
|
|
|
+ ? parser.getDependency( 'accessor', target.NORMAL )
|
|
|
+ : geometry.attributes.normal;
|
|
|
+
|
|
|
+ pendingNormalAccessors.push( pendingAccessor );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( hasMorphColor ) {
|
|
|
+
|
|
|
+ const pendingAccessor = target.COLOR_0 !== undefined
|
|
|
+ ? parser.getDependency( 'accessor', target.COLOR_0 )
|
|
|
+ : geometry.attributes.color;
|
|
|
+
|
|
|
+ pendingColorAccessors.push( pendingAccessor );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( [
|
|
|
+ Promise.all( pendingPositionAccessors ),
|
|
|
+ Promise.all( pendingNormalAccessors ),
|
|
|
+ Promise.all( pendingColorAccessors )
|
|
|
+ ] ).then( function ( accessors ) {
|
|
|
+
|
|
|
+ const morphPositions = accessors[ 0 ];
|
|
|
+ const morphNormals = accessors[ 1 ];
|
|
|
+ const morphColors = accessors[ 2 ];
|
|
|
+
|
|
|
+ if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
|
|
|
+ if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;
|
|
|
+ if ( hasMorphColor ) geometry.morphAttributes.color = morphColors;
|
|
|
+ geometry.morphTargetsRelative = true;
|
|
|
+
|
|
|
+ return geometry;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @param {Mesh} mesh
|
|
|
+ * @param {GLTF.Mesh} meshDef
|
|
|
+ */
|
|
|
+function updateMorphTargets( mesh, meshDef ) {
|
|
|
+
|
|
|
+ mesh.updateMorphTargets();
|
|
|
+
|
|
|
+ if ( meshDef.weights !== undefined ) {
|
|
|
+
|
|
|
+ for ( let 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 ) ) {
|
|
|
+
|
|
|
+ const targetNames = meshDef.extras.targetNames;
|
|
|
+
|
|
|
+ if ( mesh.morphTargetInfluences.length === targetNames.length ) {
|
|
|
+
|
|
|
+ mesh.morphTargetDictionary = {};
|
|
|
+
|
|
|
+ for ( let i = 0, il = targetNames.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ mesh.morphTargetDictionary[ targetNames[ i ] ] = i;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+function createPrimitiveKey( primitiveDef ) {
|
|
|
+
|
|
|
+ let geometryKey;
|
|
|
+
|
|
|
+ const dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ];
|
|
|
+
|
|
|
+ if ( dracoExtension ) {
|
|
|
+
|
|
|
+ geometryKey = 'draco:' + dracoExtension.bufferView
|
|
|
+ + ':' + dracoExtension.indices
|
|
|
+ + ':' + createAttributesKey( dracoExtension.attributes );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( primitiveDef.targets !== undefined ) {
|
|
|
+
|
|
|
+ for ( let i = 0, il = primitiveDef.targets.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ geometryKey += ':' + createAttributesKey( primitiveDef.targets[ i ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return geometryKey;
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+function createAttributesKey( attributes ) {
|
|
|
+
|
|
|
+ let attributesKey = '';
|
|
|
+
|
|
|
+ const keys = Object.keys( attributes ).sort();
|
|
|
+
|
|
|
+ for ( let i = 0, il = keys.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';';
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return attributesKey;
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+function getNormalizedComponentScale( constructor ) {
|
|
|
+
|
|
|
+ // Reference:
|
|
|
+ // https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_mesh_quantization#encoding-quantized-data
|
|
|
+
|
|
|
+ switch ( constructor ) {
|
|
|
+
|
|
|
+ case Int8Array:
|
|
|
+ return 1 / 127;
|
|
|
+
|
|
|
+ case Uint8Array:
|
|
|
+ return 1 / 255;
|
|
|
+
|
|
|
+ case Int16Array:
|
|
|
+ return 1 / 32767;
|
|
|
+
|
|
|
+ case Uint16Array:
|
|
|
+ return 1 / 65535;
|
|
|
+
|
|
|
+ default:
|
|
|
+ throw new Error( 'THREE.GLTFLoader: Unsupported normalized accessor component type.' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+function getImageURIMimeType( uri ) {
|
|
|
+
|
|
|
+ if ( uri.search( /\.jpe?g($|\?)/i ) > 0 || uri.search( /^data\:image\/jpeg/ ) === 0 ) return 'image/jpeg';
|
|
|
+ if ( uri.search( /\.webp($|\?)/i ) > 0 || uri.search( /^data\:image\/webp/ ) === 0 ) return 'image/webp';
|
|
|
+
|
|
|
+ return 'image/png';
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+const _identityMatrix = new Matrix4();
|
|
|
+
|
|
|
+/* GLTF PARSER */
|
|
|
+
|
|
|
+class GLTFParser {
|
|
|
+
|
|
|
+ constructor( 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 = {};
|
|
|
+
|
|
|
+ // Node cache
|
|
|
+ this.nodeCache = {};
|
|
|
+
|
|
|
+ // Object3D instance caches
|
|
|
+ this.meshCache = { refs: {}, uses: {} };
|
|
|
+ this.cameraCache = { refs: {}, uses: {} };
|
|
|
+ this.lightCache = { refs: {}, uses: {} };
|
|
|
+
|
|
|
+ this.sourceCache = {};
|
|
|
+ this.textureCache = {};
|
|
|
+
|
|
|
+ // 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.
|
|
|
+
|
|
|
+ let isSafari = false;
|
|
|
+ let isFirefox = false;
|
|
|
+ let firefoxVersion = - 1;
|
|
|
+
|
|
|
+ if ( typeof navigator !== 'undefined' ) {
|
|
|
+
|
|
|
+ isSafari = /^((?!chrome|android).)*safari/i.test( navigator.userAgent ) === true;
|
|
|
+ isFirefox = navigator.userAgent.indexOf( 'Firefox' ) > - 1;
|
|
|
+ firefoxVersion = isFirefox ? navigator.userAgent.match( /Firefox\/([0-9]+)\./ )[ 1 ] : - 1;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( typeof createImageBitmap === 'undefined' || isSafari || ( isFirefox && firefoxVersion < 98 ) ) {
|
|
|
+
|
|
|
+ this.textureLoader = new TextureLoader( this.options.manager );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ this.textureLoader = new ImageBitmapLoader( this.options.manager );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ this.textureLoader.setCrossOrigin( this.options.crossOrigin );
|
|
|
+ this.textureLoader.setRequestHeader( this.options.requestHeader );
|
|
|
+
|
|
|
+ this.fileLoader = new FileLoader( this.options.manager );
|
|
|
+ this.fileLoader.setResponseType( 'arraybuffer' );
|
|
|
+
|
|
|
+ if ( this.options.crossOrigin === 'use-credentials' ) {
|
|
|
+
|
|
|
+ this.fileLoader.setWithCredentials( true );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ setExtensions( extensions ) {
|
|
|
+
|
|
|
+ this.extensions = extensions;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ setPlugins( plugins ) {
|
|
|
+
|
|
|
+ this.plugins = plugins;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ parse( onLoad, onError ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+ const extensions = this.extensions;
|
|
|
+
|
|
|
+ // Clear the loader cache
|
|
|
+ this.cache.removeAll();
|
|
|
+ this.nodeCache = {};
|
|
|
+
|
|
|
+ // Mark the special nodes/meshes in json for efficient parse
|
|
|
+ this._invokeAll( function ( ext ) {
|
|
|
+
|
|
|
+ return ext._markDefs && ext._markDefs();
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ Promise.all( this._invokeAll( function ( ext ) {
|
|
|
+
|
|
|
+ return ext.beforeRoot && ext.beforeRoot();
|
|
|
+
|
|
|
+ } ) ).then( function () {
|
|
|
+
|
|
|
+ return Promise.all( [
|
|
|
+
|
|
|
+ parser.getDependencies( 'scene' ),
|
|
|
+ parser.getDependencies( 'animation' ),
|
|
|
+ parser.getDependencies( 'camera' ),
|
|
|
+
|
|
|
+ ] );
|
|
|
+
|
|
|
+ } ).then( function ( dependencies ) {
|
|
|
+
|
|
|
+ const 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 );
|
|
|
+
|
|
|
+ return Promise.all( parser._invokeAll( function ( ext ) {
|
|
|
+
|
|
|
+ return ext.afterRoot && ext.afterRoot( result );
|
|
|
+
|
|
|
+ } ) ).then( function () {
|
|
|
+
|
|
|
+ onLoad( result );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } ).catch( onError );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Marks the special nodes/meshes in json for efficient parse.
|
|
|
+ */
|
|
|
+ _markDefs() {
|
|
|
+
|
|
|
+ const nodeDefs = this.json.nodes || [];
|
|
|
+ const skinDefs = this.json.skins || [];
|
|
|
+ const 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 ( let skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {
|
|
|
+
|
|
|
+ const joints = skinDefs[ skinIndex ].joints;
|
|
|
+
|
|
|
+ for ( let 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 ( let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
|
|
|
+
|
|
|
+ const 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.
|
|
|
+ */
|
|
|
+ _addNodeRef( 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. */
|
|
|
+ _getNodeRef( cache, index, object ) {
|
|
|
+
|
|
|
+ if ( cache.refs[ index ] <= 1 ) return object;
|
|
|
+
|
|
|
+ const ref = object.clone();
|
|
|
+
|
|
|
+ // Propagates mappings to the cloned object, prevents mappings on the
|
|
|
+ // original object from being lost.
|
|
|
+ const updateMappings = ( original, clone ) => {
|
|
|
+
|
|
|
+ const mappings = this.associations.get( original );
|
|
|
+ if ( mappings != null ) {
|
|
|
+
|
|
|
+ this.associations.set( clone, mappings );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ for ( const [ i, child ] of original.children.entries() ) {
|
|
|
+
|
|
|
+ updateMappings( child, clone.children[ i ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ updateMappings( object, ref );
|
|
|
+
|
|
|
+ ref.name += '_instance_' + ( cache.uses[ index ] ++ );
|
|
|
+
|
|
|
+ return ref;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _invokeOne( func ) {
|
|
|
+
|
|
|
+ const extensions = Object.values( this.plugins );
|
|
|
+ extensions.push( this );
|
|
|
+
|
|
|
+ for ( let i = 0; i < extensions.length; i ++ ) {
|
|
|
+
|
|
|
+ const result = func( extensions[ i ] );
|
|
|
+
|
|
|
+ if ( result ) return result;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _invokeAll( func ) {
|
|
|
+
|
|
|
+ const extensions = Object.values( this.plugins );
|
|
|
+ extensions.unshift( this );
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ for ( let i = 0; i < extensions.length; i ++ ) {
|
|
|
+
|
|
|
+ const 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>}
|
|
|
+ */
|
|
|
+ getDependency( type, index ) {
|
|
|
+
|
|
|
+ const cacheKey = type + ':' + index;
|
|
|
+ let dependency = this.cache.get( cacheKey );
|
|
|
+
|
|
|
+ if ( ! dependency ) {
|
|
|
+
|
|
|
+ switch ( type ) {
|
|
|
+
|
|
|
+ case 'scene':
|
|
|
+ dependency = this.loadScene( index );
|
|
|
+ break;
|
|
|
+
|
|
|
+ case 'node':
|
|
|
+ dependency = this._invokeOne( function ( ext ) {
|
|
|
+
|
|
|
+ return ext.loadNode && ext.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._invokeOne( function ( ext ) {
|
|
|
+
|
|
|
+ return ext.loadAnimation && ext.loadAnimation( index );
|
|
|
+
|
|
|
+ } );
|
|
|
+ break;
|
|
|
+
|
|
|
+ case 'camera':
|
|
|
+ dependency = this.loadCamera( index );
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ dependency = this._invokeOne( function ( ext ) {
|
|
|
+
|
|
|
+ return ext != this && ext.getDependency && ext.getDependency( type, index );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ if ( ! dependency ) {
|
|
|
+
|
|
|
+ throw new Error( 'Unknown type: ' + type );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ break;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ this.cache.add( cacheKey, dependency );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return dependency;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Requests all dependencies of the specified type asynchronously, with caching.
|
|
|
+ * @param {string} type
|
|
|
+ * @return {Promise<Array<Object>>}
|
|
|
+ */
|
|
|
+ getDependencies( type ) {
|
|
|
+
|
|
|
+ let dependencies = this.cache.get( type );
|
|
|
+
|
|
|
+ if ( ! dependencies ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const 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>}
|
|
|
+ */
|
|
|
+ loadBuffer( bufferIndex ) {
|
|
|
+
|
|
|
+ const bufferDef = this.json.buffers[ bufferIndex ];
|
|
|
+ const 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 );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const options = this.options;
|
|
|
+
|
|
|
+ return new Promise( function ( resolve, reject ) {
|
|
|
+
|
|
|
+ loader.load( LoaderUtils.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>}
|
|
|
+ */
|
|
|
+ loadBufferView( bufferViewIndex ) {
|
|
|
+
|
|
|
+ const bufferViewDef = this.json.bufferViews[ bufferViewIndex ];
|
|
|
+
|
|
|
+ return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {
|
|
|
+
|
|
|
+ const byteLength = bufferViewDef.byteLength || 0;
|
|
|
+ const 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>}
|
|
|
+ */
|
|
|
+ loadAccessor( accessorIndex ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+
|
|
|
+ const accessorDef = this.json.accessors[ accessorIndex ];
|
|
|
+
|
|
|
+ if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {
|
|
|
+
|
|
|
+ const itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
|
|
|
+ const TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
|
|
|
+ const normalized = accessorDef.normalized === true;
|
|
|
+
|
|
|
+ const array = new TypedArray( accessorDef.count * itemSize );
|
|
|
+ return Promise.resolve( new BufferAttribute( array, itemSize, normalized ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ const bufferView = bufferViews[ 0 ];
|
|
|
+
|
|
|
+ const itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
|
|
|
+ const TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
|
|
|
+
|
|
|
+ // For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
|
|
|
+ const elementBytes = TypedArray.BYTES_PER_ELEMENT;
|
|
|
+ const itemBytes = elementBytes * itemSize;
|
|
|
+ const byteOffset = accessorDef.byteOffset || 0;
|
|
|
+ const byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined;
|
|
|
+ const normalized = accessorDef.normalized === true;
|
|
|
+ let 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
|
|
|
+ const ibSlice = Math.floor( byteOffset / byteStride );
|
|
|
+ const ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType + ':' + ibSlice + ':' + accessorDef.count;
|
|
|
+ let ib = parser.cache.get( ibCacheKey );
|
|
|
+
|
|
|
+ if ( ! ib ) {
|
|
|
+
|
|
|
+ array = new TypedArray( bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes );
|
|
|
+
|
|
|
+ // Integer parameters to IB/IBA are in array elements, not bytes.
|
|
|
+ ib = new 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 ) {
|
|
|
+
|
|
|
+ const itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
|
|
|
+ const TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];
|
|
|
+
|
|
|
+ const byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
|
|
|
+ const byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
|
|
|
+
|
|
|
+ const sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
|
|
|
+ const 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 ( let i = 0, il = sparseIndices.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const 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|null>}
|
|
|
+ */
|
|
|
+ loadTexture( textureIndex ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const options = this.options;
|
|
|
+ const textureDef = json.textures[ textureIndex ];
|
|
|
+ const sourceIndex = textureDef.source;
|
|
|
+ const sourceDef = json.images[ sourceIndex ];
|
|
|
+
|
|
|
+ let loader = this.textureLoader;
|
|
|
+
|
|
|
+ if ( sourceDef.uri ) {
|
|
|
+
|
|
|
+ const handler = options.manager.getHandler( sourceDef.uri );
|
|
|
+ if ( handler !== null ) loader = handler;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return this.loadTextureImage( textureIndex, sourceIndex, loader );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadTextureImage( textureIndex, sourceIndex, loader ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+
|
|
|
+ const textureDef = json.textures[ textureIndex ];
|
|
|
+ const sourceDef = json.images[ sourceIndex ];
|
|
|
+
|
|
|
+ const cacheKey = ( sourceDef.uri || sourceDef.bufferView ) + ':' + textureDef.sampler;
|
|
|
+
|
|
|
+ if ( this.textureCache[ cacheKey ] ) {
|
|
|
+
|
|
|
+ // See https://github.com/mrdoob/three.js/issues/21559.
|
|
|
+ return this.textureCache[ cacheKey ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const promise = this.loadImageSource( sourceIndex, loader ).then( function ( texture ) {
|
|
|
+
|
|
|
+ texture.flipY = false;
|
|
|
+
|
|
|
+ texture.name = textureDef.name || sourceDef.name || '';
|
|
|
+
|
|
|
+ if ( texture.name === '' && typeof sourceDef.uri === 'string' && sourceDef.uri.startsWith( 'data:image/' ) === false ) {
|
|
|
+
|
|
|
+ texture.name = sourceDef.uri;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const samplers = json.samplers || {};
|
|
|
+ const 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, { textures: textureIndex } );
|
|
|
+
|
|
|
+ return texture;
|
|
|
+
|
|
|
+ } ).catch( function () {
|
|
|
+
|
|
|
+ return null;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ this.textureCache[ cacheKey ] = promise;
|
|
|
+
|
|
|
+ return promise;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loadImageSource( sourceIndex, loader ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+ const options = this.options;
|
|
|
+
|
|
|
+ if ( this.sourceCache[ sourceIndex ] !== undefined ) {
|
|
|
+
|
|
|
+ return this.sourceCache[ sourceIndex ].then( ( texture ) => texture.clone() );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const sourceDef = json.images[ sourceIndex ];
|
|
|
+
|
|
|
+ const URL = self.URL || self.webkitURL;
|
|
|
+
|
|
|
+ let sourceURI = sourceDef.uri || '';
|
|
|
+ let isObjectURL = false;
|
|
|
+
|
|
|
+ if ( sourceDef.bufferView !== undefined ) {
|
|
|
+
|
|
|
+ // Load binary image data from bufferView, if provided.
|
|
|
+
|
|
|
+ sourceURI = parser.getDependency( 'bufferView', sourceDef.bufferView ).then( function ( bufferView ) {
|
|
|
+
|
|
|
+ isObjectURL = true;
|
|
|
+ const blob = new Blob( [ bufferView ], { type: sourceDef.mimeType } );
|
|
|
+ sourceURI = URL.createObjectURL( blob );
|
|
|
+ return sourceURI;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } else if ( sourceDef.uri === undefined ) {
|
|
|
+
|
|
|
+ throw new Error( 'THREE.GLTFLoader: Image ' + sourceIndex + ' is missing URI and bufferView' );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const promise = Promise.resolve( sourceURI ).then( function ( sourceURI ) {
|
|
|
+
|
|
|
+ return new Promise( function ( resolve, reject ) {
|
|
|
+
|
|
|
+ let onLoad = resolve;
|
|
|
+
|
|
|
+ if ( loader.isImageBitmapLoader === true ) {
|
|
|
+
|
|
|
+ onLoad = function ( imageBitmap ) {
|
|
|
+
|
|
|
+ const texture = new Texture( imageBitmap );
|
|
|
+ texture.needsUpdate = true;
|
|
|
+
|
|
|
+ resolve( texture );
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ loader.load( LoaderUtils.resolveURL( sourceURI, options.path ), onLoad, undefined, reject );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } ).then( function ( texture ) {
|
|
|
+
|
|
|
+ // Clean up resources and configure Texture.
|
|
|
+
|
|
|
+ if ( isObjectURL === true ) {
|
|
|
+
|
|
|
+ URL.revokeObjectURL( sourceURI );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ texture.userData.mimeType = sourceDef.mimeType || getImageURIMimeType( sourceDef.uri );
|
|
|
+
|
|
|
+ return texture;
|
|
|
+
|
|
|
+ } ).catch( function ( error ) {
|
|
|
+
|
|
|
+ console.error( 'THREE.GLTFLoader: Couldn\'t load texture', sourceURI );
|
|
|
+ throw error;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ this.sourceCache[ sourceIndex ] = promise;
|
|
|
+ return promise;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Asynchronously assigns a texture to the given material parameters.
|
|
|
+ * @param {Object} materialParams
|
|
|
+ * @param {string} mapName
|
|
|
+ * @param {Object} mapDef
|
|
|
+ * @return {Promise<Texture>}
|
|
|
+ */
|
|
|
+ assignTexture( materialParams, mapName, mapDef, colorSpace ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+
|
|
|
+ return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) {
|
|
|
+
|
|
|
+ if ( ! texture ) return null;
|
|
|
+
|
|
|
+ if ( mapDef.texCoord !== undefined && mapDef.texCoord > 0 ) {
|
|
|
+
|
|
|
+ texture = texture.clone();
|
|
|
+ texture.channel = mapDef.texCoord;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) {
|
|
|
+
|
|
|
+ const transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined;
|
|
|
+
|
|
|
+ if ( transform ) {
|
|
|
+
|
|
|
+ const gltfReference = parser.associations.get( texture );
|
|
|
+ texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform );
|
|
|
+ parser.associations.set( texture, gltfReference );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( colorSpace !== undefined ) {
|
|
|
+
|
|
|
+ texture.colorSpace = colorSpace;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ materialParams[ mapName ] = texture;
|
|
|
+
|
|
|
+ return 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 accommodate 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.
|
|
|
+ */
|
|
|
+ assignFinalMaterial( mesh ) {
|
|
|
+
|
|
|
+ const geometry = mesh.geometry;
|
|
|
+ let material = mesh.material;
|
|
|
+
|
|
|
+ const useDerivativeTangents = geometry.attributes.tangent === undefined;
|
|
|
+ const useVertexColors = geometry.attributes.color !== undefined;
|
|
|
+ const useFlatShading = geometry.attributes.normal === undefined;
|
|
|
+
|
|
|
+ if ( mesh.isPoints ) {
|
|
|
+
|
|
|
+ const cacheKey = 'PointsMaterial:' + material.uuid;
|
|
|
+
|
|
|
+ let 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 ) {
|
|
|
+
|
|
|
+ const cacheKey = 'LineBasicMaterial:' + material.uuid;
|
|
|
+
|
|
|
+ let lineMaterial = this.cache.get( cacheKey );
|
|
|
+
|
|
|
+ if ( ! lineMaterial ) {
|
|
|
+
|
|
|
+ lineMaterial = new LineBasicMaterial();
|
|
|
+ Material.prototype.copy.call( lineMaterial, material );
|
|
|
+ lineMaterial.color.copy( material.color );
|
|
|
+ lineMaterial.map = material.map;
|
|
|
+
|
|
|
+ this.cache.add( cacheKey, lineMaterial );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ material = lineMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Clone the material if it will be modified
|
|
|
+ if ( useDerivativeTangents || useVertexColors || useFlatShading ) {
|
|
|
+
|
|
|
+ let cacheKey = 'ClonedMaterial:' + material.uuid + ':';
|
|
|
+
|
|
|
+ if ( useDerivativeTangents ) cacheKey += 'derivative-tangents:';
|
|
|
+ if ( useVertexColors ) cacheKey += 'vertex-colors:';
|
|
|
+ if ( useFlatShading ) cacheKey += 'flat-shading:';
|
|
|
+
|
|
|
+ let cachedMaterial = this.cache.get( cacheKey );
|
|
|
+
|
|
|
+ if ( ! cachedMaterial ) {
|
|
|
+
|
|
|
+ cachedMaterial = material.clone();
|
|
|
+
|
|
|
+ if ( useVertexColors ) cachedMaterial.vertexColors = true;
|
|
|
+ if ( useFlatShading ) cachedMaterial.flatShading = true;
|
|
|
+
|
|
|
+ if ( useDerivativeTangents ) {
|
|
|
+
|
|
|
+ // https://github.com/mrdoob/three.js/issues/11438#issuecomment-507003995
|
|
|
+ if ( cachedMaterial.normalScale ) cachedMaterial.normalScale.y *= - 1;
|
|
|
+ if ( cachedMaterial.clearcoatNormalScale ) cachedMaterial.clearcoatNormalScale.y *= - 1;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ this.cache.add( cacheKey, cachedMaterial );
|
|
|
+
|
|
|
+ this.associations.set( cachedMaterial, this.associations.get( material ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ material = cachedMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ mesh.material = material;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ getMaterialType( /* materialIndex */ ) {
|
|
|
+
|
|
|
+ return MeshStandardMaterial;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
|
|
|
+ * @param {number} materialIndex
|
|
|
+ * @return {Promise<Material>}
|
|
|
+ */
|
|
|
+ loadMaterial( materialIndex ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+ const extensions = this.extensions;
|
|
|
+ const materialDef = json.materials[ materialIndex ];
|
|
|
+
|
|
|
+ let materialType;
|
|
|
+ const materialParams = {};
|
|
|
+ const materialExtensions = materialDef.extensions || {};
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {
|
|
|
+
|
|
|
+ const 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
|
|
|
+
|
|
|
+ const metallicRoughness = materialDef.pbrMetallicRoughness || {};
|
|
|
+
|
|
|
+ materialParams.color = new Color( 1.0, 1.0, 1.0 );
|
|
|
+ materialParams.opacity = 1.0;
|
|
|
+
|
|
|
+ if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
|
|
|
+
|
|
|
+ const array = metallicRoughness.baseColorFactor;
|
|
|
+
|
|
|
+ materialParams.color.setRGB( array[ 0 ], array[ 1 ], array[ 2 ], LinearSRGBColorSpace );
|
|
|
+ materialParams.opacity = array[ 3 ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( metallicRoughness.baseColorTexture !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture, SRGBColorSpace ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ 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;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ const scale = materialDef.normalTexture.scale;
|
|
|
+
|
|
|
+ materialParams.normalScale.set( scale, 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 ) {
|
|
|
+
|
|
|
+ const emissiveFactor = materialDef.emissiveFactor;
|
|
|
+ materialParams.emissive = new Color().setRGB( emissiveFactor[ 0 ], emissiveFactor[ 1 ], emissiveFactor[ 2 ], LinearSRGBColorSpace );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( materialDef.emissiveTexture !== undefined && materialType !== MeshBasicMaterial ) {
|
|
|
+
|
|
|
+ pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture, SRGBColorSpace ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending ).then( function () {
|
|
|
+
|
|
|
+ const material = new materialType( materialParams );
|
|
|
+
|
|
|
+ if ( materialDef.name ) material.name = materialDef.name;
|
|
|
+
|
|
|
+ assignExtrasToUserData( material, materialDef );
|
|
|
+
|
|
|
+ parser.associations.set( material, { materials: materialIndex } );
|
|
|
+
|
|
|
+ if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );
|
|
|
+
|
|
|
+ return material;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /** When Object3D instances are targeted by animation, they need unique names. */
|
|
|
+ createUniqueName( originalName ) {
|
|
|
+
|
|
|
+ const sanitizedName = PropertyBinding.sanitizeNodeName( originalName || '' );
|
|
|
+
|
|
|
+ if ( sanitizedName in this.nodeNamesUsed ) {
|
|
|
+
|
|
|
+ return sanitizedName + '_' + ( ++ this.nodeNamesUsed[ sanitizedName ] );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ this.nodeNamesUsed[ sanitizedName ] = 0;
|
|
|
+
|
|
|
+ return sanitizedName;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 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>>}
|
|
|
+ */
|
|
|
+ loadGeometries( primitives ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const extensions = this.extensions;
|
|
|
+ const cache = this.primitiveCache;
|
|
|
+
|
|
|
+ function createDracoPrimitive( primitive ) {
|
|
|
+
|
|
|
+ return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
|
|
|
+ .decodePrimitive( primitive, parser )
|
|
|
+ .then( function ( geometry ) {
|
|
|
+
|
|
|
+ return addPrimitiveAttributes( geometry, primitive, parser );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = primitives.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const primitive = primitives[ i ];
|
|
|
+ const cacheKey = createPrimitiveKey( primitive );
|
|
|
+
|
|
|
+ // See if we've already created this geometry
|
|
|
+ const cached = cache[ cacheKey ];
|
|
|
+
|
|
|
+ if ( cached ) {
|
|
|
+
|
|
|
+ // Use the cached geometry if it exists
|
|
|
+ pending.push( cached.promise );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ let 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>}
|
|
|
+ */
|
|
|
+ loadMesh( meshIndex ) {
|
|
|
+
|
|
|
+ const parser = this;
|
|
|
+ const json = this.json;
|
|
|
+ const extensions = this.extensions;
|
|
|
+
|
|
|
+ const meshDef = json.meshes[ meshIndex ];
|
|
|
+ const primitives = meshDef.primitives;
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = primitives.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ const materials = results.slice( 0, results.length - 1 );
|
|
|
+ const geometries = results[ results.length - 1 ];
|
|
|
+
|
|
|
+ const meshes = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = geometries.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const geometry = geometries[ i ];
|
|
|
+ const primitive = primitives[ i ];
|
|
|
+
|
|
|
+ // 1. create Mesh
|
|
|
+
|
|
|
+ let mesh;
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ // normalize skin weights to fix malformed assets (see #15319)
|
|
|
+ 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 ) );
|
|
|
+
|
|
|
+ assignExtrasToUserData( mesh, meshDef );
|
|
|
+
|
|
|
+ if ( primitive.extensions ) addUnknownExtensionsToUserData( extensions, mesh, primitive );
|
|
|
+
|
|
|
+ parser.assignFinalMaterial( mesh );
|
|
|
+
|
|
|
+ meshes.push( mesh );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ for ( let i = 0, il = meshes.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ parser.associations.set( meshes[ i ], {
|
|
|
+ meshes: meshIndex,
|
|
|
+ primitives: i
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( meshes.length === 1 ) {
|
|
|
+
|
|
|
+ if ( meshDef.extensions ) addUnknownExtensionsToUserData( extensions, meshes[ 0 ], meshDef );
|
|
|
+
|
|
|
+ return meshes[ 0 ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const group = new Group();
|
|
|
+
|
|
|
+ if ( meshDef.extensions ) addUnknownExtensionsToUserData( extensions, group, meshDef );
|
|
|
+
|
|
|
+ parser.associations.set( group, { meshes: meshIndex } );
|
|
|
+
|
|
|
+ for ( let 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>}
|
|
|
+ */
|
|
|
+ loadCamera( cameraIndex ) {
|
|
|
+
|
|
|
+ let camera;
|
|
|
+ const cameraDef = this.json.cameras[ cameraIndex ];
|
|
|
+ const 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<Skeleton>}
|
|
|
+ */
|
|
|
+ loadSkin( skinIndex ) {
|
|
|
+
|
|
|
+ const skinDef = this.json.skins[ skinIndex ];
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = skinDef.joints.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ pending.push( this._loadNodeShallow( skinDef.joints[ i ] ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( skinDef.inverseBindMatrices !== undefined ) {
|
|
|
+
|
|
|
+ pending.push( this.getDependency( 'accessor', skinDef.inverseBindMatrices ) );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ pending.push( null );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending ).then( function ( results ) {
|
|
|
+
|
|
|
+ const inverseBindMatrices = results.pop();
|
|
|
+ const jointNodes = results;
|
|
|
+
|
|
|
+ // Note that bones (joint nodes) may or may not be in the
|
|
|
+ // scene graph at this time.
|
|
|
+
|
|
|
+ const bones = [];
|
|
|
+ const boneInverses = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = jointNodes.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const jointNode = jointNodes[ i ];
|
|
|
+
|
|
|
+ if ( jointNode ) {
|
|
|
+
|
|
|
+ bones.push( jointNode );
|
|
|
+
|
|
|
+ const mat = new Matrix4();
|
|
|
+
|
|
|
+ if ( inverseBindMatrices !== null ) {
|
|
|
+
|
|
|
+ mat.fromArray( inverseBindMatrices.array, i * 16 );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ boneInverses.push( mat );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', skinDef.joints[ i ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return new Skeleton( bones, boneInverses );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
|
|
|
+ * @param {number} animationIndex
|
|
|
+ * @return {Promise<AnimationClip>}
|
|
|
+ */
|
|
|
+ loadAnimation( animationIndex ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const parser = this;
|
|
|
+
|
|
|
+ const animationDef = json.animations[ animationIndex ];
|
|
|
+ const animationName = animationDef.name ? animationDef.name : 'animation_' + animationIndex;
|
|
|
+
|
|
|
+ const pendingNodes = [];
|
|
|
+ const pendingInputAccessors = [];
|
|
|
+ const pendingOutputAccessors = [];
|
|
|
+ const pendingSamplers = [];
|
|
|
+ const pendingTargets = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = animationDef.channels.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const channel = animationDef.channels[ i ];
|
|
|
+ const sampler = animationDef.samplers[ channel.sampler ];
|
|
|
+ const target = channel.target;
|
|
|
+ const name = target.node;
|
|
|
+ const input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
|
|
|
+ const output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;
|
|
|
+
|
|
|
+ if ( target.node === undefined ) continue;
|
|
|
+
|
|
|
+ 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 ) {
|
|
|
+
|
|
|
+ const nodes = dependencies[ 0 ];
|
|
|
+ const inputAccessors = dependencies[ 1 ];
|
|
|
+ const outputAccessors = dependencies[ 2 ];
|
|
|
+ const samplers = dependencies[ 3 ];
|
|
|
+ const targets = dependencies[ 4 ];
|
|
|
+
|
|
|
+ const tracks = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = nodes.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const node = nodes[ i ];
|
|
|
+ const inputAccessor = inputAccessors[ i ];
|
|
|
+ const outputAccessor = outputAccessors[ i ];
|
|
|
+ const sampler = samplers[ i ];
|
|
|
+ const target = targets[ i ];
|
|
|
+
|
|
|
+ if ( node === undefined ) continue;
|
|
|
+
|
|
|
+ if ( node.updateMatrix ) {
|
|
|
+
|
|
|
+ node.updateMatrix();
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const createdTracks = parser._createAnimationTracks( node, inputAccessor, outputAccessor, sampler, target );
|
|
|
+
|
|
|
+ if ( createdTracks ) {
|
|
|
+
|
|
|
+ for ( let k = 0; k < createdTracks.length; k ++ ) {
|
|
|
+
|
|
|
+ tracks.push( createdTracks[ k ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return new AnimationClip( animationName, undefined, tracks );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ createNodeMesh( nodeIndex ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const parser = this;
|
|
|
+ const nodeDef = json.nodes[ nodeIndex ];
|
|
|
+
|
|
|
+ if ( nodeDef.mesh === undefined ) return null;
|
|
|
+
|
|
|
+ return parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) {
|
|
|
+
|
|
|
+ const 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 ( let i = 0, il = nodeDef.weights.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ o.morphTargetInfluences[ i ] = nodeDef.weights[ i ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return node;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
|
|
|
+ * @param {number} nodeIndex
|
|
|
+ * @return {Promise<Object3D>}
|
|
|
+ */
|
|
|
+ loadNode( nodeIndex ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const parser = this;
|
|
|
+
|
|
|
+ const nodeDef = json.nodes[ nodeIndex ];
|
|
|
+
|
|
|
+ const nodePending = parser._loadNodeShallow( nodeIndex );
|
|
|
+
|
|
|
+ const childPending = [];
|
|
|
+ const childrenDef = nodeDef.children || [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = childrenDef.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ childPending.push( parser.getDependency( 'node', childrenDef[ i ] ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const skeletonPending = nodeDef.skin === undefined
|
|
|
+ ? Promise.resolve( null )
|
|
|
+ : parser.getDependency( 'skin', nodeDef.skin );
|
|
|
+
|
|
|
+ return Promise.all( [
|
|
|
+ nodePending,
|
|
|
+ Promise.all( childPending ),
|
|
|
+ skeletonPending
|
|
|
+ ] ).then( function ( results ) {
|
|
|
+
|
|
|
+ const node = results[ 0 ];
|
|
|
+ const children = results[ 1 ];
|
|
|
+ const skeleton = results[ 2 ];
|
|
|
+
|
|
|
+ if ( skeleton !== null ) {
|
|
|
+
|
|
|
+ // This full traverse should be fine because
|
|
|
+ // child glTF nodes have not been added to this node yet.
|
|
|
+ node.traverse( function ( mesh ) {
|
|
|
+
|
|
|
+ if ( ! mesh.isSkinnedMesh ) return;
|
|
|
+
|
|
|
+ mesh.bind( skeleton, _identityMatrix );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ for ( let i = 0, il = children.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ node.add( children[ i ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return node;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // ._loadNodeShallow() parses a single node.
|
|
|
+ // skin and child nodes are created and added in .loadNode() (no '_' prefix).
|
|
|
+ _loadNodeShallow( nodeIndex ) {
|
|
|
+
|
|
|
+ const json = this.json;
|
|
|
+ const extensions = this.extensions;
|
|
|
+ const parser = this;
|
|
|
+
|
|
|
+ // This method is called from .loadNode() and .loadSkin().
|
|
|
+ // Cache a node to avoid duplication.
|
|
|
+
|
|
|
+ if ( this.nodeCache[ nodeIndex ] !== undefined ) {
|
|
|
+
|
|
|
+ return this.nodeCache[ nodeIndex ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const nodeDef = json.nodes[ nodeIndex ];
|
|
|
+
|
|
|
+ // reserve node's name before its dependencies, so the root has the intended name.
|
|
|
+ const nodeName = nodeDef.name ? parser.createUniqueName( nodeDef.name ) : '';
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ const meshPromise = parser._invokeOne( function ( ext ) {
|
|
|
+
|
|
|
+ return ext.createNodeMesh && ext.createNodeMesh( nodeIndex );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ if ( meshPromise ) {
|
|
|
+
|
|
|
+ pending.push( meshPromise );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ 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 );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ this.nodeCache[ nodeIndex ] = Promise.all( pending ).then( function ( objects ) {
|
|
|
+
|
|
|
+ let 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 ( let 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 ) {
|
|
|
+
|
|
|
+ const 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 );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ! parser.associations.has( node ) ) {
|
|
|
+
|
|
|
+ parser.associations.set( node, {} );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ parser.associations.get( node ).nodes = nodeIndex;
|
|
|
+
|
|
|
+ return node;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ return this.nodeCache[ nodeIndex ];
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
|
|
|
+ * @param {number} sceneIndex
|
|
|
+ * @return {Promise<Group>}
|
|
|
+ */
|
|
|
+ loadScene( sceneIndex ) {
|
|
|
+
|
|
|
+ const extensions = this.extensions;
|
|
|
+ const sceneDef = this.json.scenes[ sceneIndex ];
|
|
|
+ const parser = this;
|
|
|
+
|
|
|
+ // Loader returns Group, not Scene.
|
|
|
+ // See: https://github.com/mrdoob/three.js/issues/18342#issuecomment-578981172
|
|
|
+ const scene = new Group();
|
|
|
+ if ( sceneDef.name ) scene.name = parser.createUniqueName( sceneDef.name );
|
|
|
+
|
|
|
+ assignExtrasToUserData( scene, sceneDef );
|
|
|
+
|
|
|
+ if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );
|
|
|
+
|
|
|
+ const nodeIds = sceneDef.nodes || [];
|
|
|
+
|
|
|
+ const pending = [];
|
|
|
+
|
|
|
+ for ( let i = 0, il = nodeIds.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ pending.push( parser.getDependency( 'node', nodeIds[ i ] ) );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return Promise.all( pending ).then( function ( nodes ) {
|
|
|
+
|
|
|
+ for ( let i = 0, il = nodes.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ scene.add( nodes[ i ] );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ // Removes dangling associations, associations that reference a node that
|
|
|
+ // didn't make it into the scene.
|
|
|
+ const reduceAssociations = ( node ) => {
|
|
|
+
|
|
|
+ const reducedAssociations = new Map();
|
|
|
+
|
|
|
+ for ( const [ key, value ] of parser.associations ) {
|
|
|
+
|
|
|
+ if ( key instanceof Material || key instanceof Texture ) {
|
|
|
+
|
|
|
+ reducedAssociations.set( key, value );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ node.traverse( ( node ) => {
|
|
|
+
|
|
|
+ const mappings = parser.associations.get( node );
|
|
|
+
|
|
|
+ if ( mappings != null ) {
|
|
|
+
|
|
|
+ reducedAssociations.set( node, mappings );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ return reducedAssociations;
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ parser.associations = reduceAssociations( scene );
|
|
|
+
|
|
|
+ return scene;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _createAnimationTracks( node, inputAccessor, outputAccessor, sampler, target ) {
|
|
|
+
|
|
|
+ const tracks = [];
|
|
|
+
|
|
|
+ const targetName = node.name ? node.name : node.uuid;
|
|
|
+ const targetNames = [];
|
|
|
+
|
|
|
+ if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
|
|
|
+
|
|
|
+ node.traverse( function ( object ) {
|
|
|
+
|
|
|
+ if ( object.morphTargetInfluences ) {
|
|
|
+
|
|
|
+ targetNames.push( object.name ? object.name : object.uuid );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ targetNames.push( targetName );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ let 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:
|
|
|
+
|
|
|
+ TypedKeyframeTrack = VectorKeyframeTrack;
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+
|
|
|
+ switch ( outputAccessor.itemSize ) {
|
|
|
+
|
|
|
+ case 1:
|
|
|
+ TypedKeyframeTrack = NumberKeyframeTrack;
|
|
|
+ break;
|
|
|
+ case 2:
|
|
|
+ case 3:
|
|
|
+ default:
|
|
|
+ TypedKeyframeTrack = VectorKeyframeTrack;
|
|
|
+ break;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ break;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : InterpolateLinear;
|
|
|
+
|
|
|
+
|
|
|
+ const outputArray = this._getArrayFromAccessor( outputAccessor );
|
|
|
+
|
|
|
+ for ( let j = 0, jl = targetNames.length; j < jl; j ++ ) {
|
|
|
+
|
|
|
+ const track = new TypedKeyframeTrack(
|
|
|
+ targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
|
|
|
+ inputAccessor.array,
|
|
|
+ outputArray,
|
|
|
+ interpolation
|
|
|
+ );
|
|
|
+
|
|
|
+ // Override interpolation with custom factory method.
|
|
|
+ if ( sampler.interpolation === 'CUBICSPLINE' ) {
|
|
|
+
|
|
|
+ this._createCubicSplineTrackInterpolant( track );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ tracks.push( track );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return tracks;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _getArrayFromAccessor( accessor ) {
|
|
|
+
|
|
|
+ let outputArray = accessor.array;
|
|
|
+
|
|
|
+ if ( accessor.normalized ) {
|
|
|
+
|
|
|
+ const scale = getNormalizedComponentScale( outputArray.constructor );
|
|
|
+ const scaled = new Float32Array( outputArray.length );
|
|
|
+
|
|
|
+ for ( let j = 0, jl = outputArray.length; j < jl; j ++ ) {
|
|
|
+
|
|
|
+ scaled[ j ] = outputArray[ j ] * scale;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ outputArray = scaled;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return outputArray;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ _createCubicSplineTrackInterpolant( track ) {
|
|
|
+
|
|
|
+ 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.
|
|
|
+
|
|
|
+ const interpolantType = ( this instanceof QuaternionKeyframeTrack ) ? GLTFCubicSplineQuaternionInterpolant : GLTFCubicSplineInterpolant;
|
|
|
+
|
|
|
+ return new interpolantType( this.times, this.values, this.getValueSize() / 3, result );
|
|
|
+
|
|
|
+ };
|
|
|
+
|
|
|
+ // Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.
|
|
|
+ track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * @param {BufferGeometry} geometry
|
|
|
+ * @param {GLTF.Primitive} primitiveDef
|
|
|
+ * @param {GLTFParser} parser
|
|
|
+ */
|
|
|
+function computeBounds( geometry, primitiveDef, parser ) {
|
|
|
+
|
|
|
+ const attributes = primitiveDef.attributes;
|
|
|
+
|
|
|
+ const box = new Box3();
|
|
|
+
|
|
|
+ if ( attributes.POSITION !== undefined ) {
|
|
|
+
|
|
|
+ const accessor = parser.json.accessors[ attributes.POSITION ];
|
|
|
+
|
|
|
+ const min = accessor.min;
|
|
|
+ const 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 ] )
|
|
|
+ );
|
|
|
+
|
|
|
+ if ( accessor.normalized ) {
|
|
|
+
|
|
|
+ const boxScale = getNormalizedComponentScale( WEBGL_COMPONENT_TYPES[ accessor.componentType ] );
|
|
|
+ box.min.multiplyScalar( boxScale );
|
|
|
+ box.max.multiplyScalar( boxScale );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
|
|
|
+
|
|
|
+ return;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } else {
|
|
|
+
|
|
|
+ return;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ const targets = primitiveDef.targets;
|
|
|
+
|
|
|
+ if ( targets !== undefined ) {
|
|
|
+
|
|
|
+ const maxDisplacement = new Vector3();
|
|
|
+ const vector = new Vector3();
|
|
|
+
|
|
|
+ for ( let i = 0, il = targets.length; i < il; i ++ ) {
|
|
|
+
|
|
|
+ const target = targets[ i ];
|
|
|
+
|
|
|
+ if ( target.POSITION !== undefined ) {
|
|
|
+
|
|
|
+ const accessor = parser.json.accessors[ target.POSITION ];
|
|
|
+ const min = accessor.min;
|
|
|
+ const 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 ] ) ) );
|
|
|
+
|
|
|
+
|
|
|
+ if ( accessor.normalized ) {
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+
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+ const boxScale = getNormalizedComponentScale( WEBGL_COMPONENT_TYPES[ accessor.componentType ] );
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+ vector.multiplyScalar( boxScale );
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+
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+ }
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+
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+ // Note: this assumes that the sum of all weights is at most 1. This isn't quite correct - it's more conservative
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+ // to assume that each target can have a max weight of 1. However, for some use cases - notably, when morph targets
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+ // are used to implement key-frame animations and as such only two are active at a time - this results in very large
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+ // boxes. So for now we make a box that's sometimes a touch too small but is hopefully mostly of reasonable size.
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+ maxDisplacement.max( vector );
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+
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+ } else {
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+
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+ console.warn( 'THREE.GLTFLoader: Missing min/max properties for accessor POSITION.' );
|
|
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+
|
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+ }
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+
|
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+ }
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+
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+ }
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+
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+ // As per comment above this box isn't conservative, but has a reasonable size for a very large number of morph targets.
|
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+ box.expandByVector( maxDisplacement );
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+
|
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+ }
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+
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+ geometry.boundingBox = box;
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+
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+ const sphere = new Sphere();
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+
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+ box.getCenter( sphere.center );
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+ sphere.radius = box.min.distanceTo( box.max ) / 2;
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+
|
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+ geometry.boundingSphere = sphere;
|
|
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+
|
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+}
|
|
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+
|
|
|
+/**
|
|
|
+ * @param {BufferGeometry} geometry
|
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+ * @param {GLTF.Primitive} primitiveDef
|
|
|
+ * @param {GLTFParser} parser
|
|
|
+ * @return {Promise<BufferGeometry>}
|
|
|
+ */
|
|
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+function addPrimitiveAttributes( geometry, primitiveDef, parser ) {
|
|
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+
|
|
|
+ const attributes = primitiveDef.attributes;
|
|
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+
|
|
|
+ const pending = [];
|
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|
+
|
|
|
+ function assignAttributeAccessor( accessorIndex, attributeName ) {
|
|
|
+
|
|
|
+ return parser.getDependency( 'accessor', accessorIndex )
|
|
|
+ .then( function ( accessor ) {
|
|
|
+
|
|
|
+ geometry.setAttribute( attributeName, accessor );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ for ( const gltfAttributeName in attributes ) {
|
|
|
+
|
|
|
+ const 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 ) {
|
|
|
+
|
|
|
+ const accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) {
|
|
|
+
|
|
|
+ geometry.setIndex( accessor );
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+ pending.push( accessor );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( ColorManagement.workingColorSpace !== LinearSRGBColorSpace && 'COLOR_0' in attributes ) {
|
|
|
+
|
|
|
+ console.warn( `THREE.GLTFLoader: Converting vertex colors from "srgb-linear" to "${ColorManagement.workingColorSpace}" not supported.` );
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ assignExtrasToUserData( geometry, primitiveDef );
|
|
|
+
|
|
|
+ computeBounds( geometry, primitiveDef, parser );
|
|
|
+
|
|
|
+ return Promise.all( pending ).then( function () {
|
|
|
+
|
|
|
+ return primitiveDef.targets !== undefined
|
|
|
+ ? addMorphTargets( geometry, primitiveDef.targets, parser )
|
|
|
+ : geometry;
|
|
|
+
|
|
|
+ } );
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+export { GLTFLoader };
|
Oivo Agent
1 hete
