Add ktx
This commit is contained in:
@@ -0,0 +1,518 @@
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/**
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* @author Don McCurdy / https://www.donmccurdy.com
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* @author Austin Eng / https://github.com/austinEng
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* @author Shrek Shao / https://github.com/shrekshao
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*/
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/**
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* Loader for Basis Universal GPU Texture Codec.
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*
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* Basis Universal is a "supercompressed" GPU texture and texture video
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* compression system that outputs a highly compressed intermediate file format
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* (.basis) that can be quickly transcoded to a wide variety of GPU texture
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* compression formats.
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*
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* This loader parallelizes the transcoding process across a configurable number
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* of web workers, before transferring the transcoded compressed texture back
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* to the main thread.
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*/
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THREE.BasisTextureLoader = function ( manager ) {
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THREE.Loader.call( this, manager );
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this.transcoderPath = '';
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this.transcoderBinary = null;
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this.transcoderPending = null;
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this.workerLimit = 4;
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this.workerPool = [];
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this.workerNextTaskID = 1;
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this.workerSourceURL = '';
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this.workerConfig = {
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format: null,
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astcSupported: false,
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etcSupported: false,
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dxtSupported: false,
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pvrtcSupported: false,
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};
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};
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THREE.BasisTextureLoader.prototype = Object.assign( Object.create( THREE.Loader.prototype ), {
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constructor: THREE.BasisTextureLoader,
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setTranscoderPath: function ( path ) {
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this.transcoderPath = path;
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return this;
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},
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setWorkerLimit: function ( workerLimit ) {
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this.workerLimit = workerLimit;
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return this;
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},
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detectSupport: function ( renderer ) {
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var config = this.workerConfig;
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config.bc7Supported = !! renderer.extensions.get( 'EXT_texture_compression_bptc' );
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config.astcSupported = !! renderer.extensions.get( 'WEBGL_compressed_texture_astc' );
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config.etcSupported = !! renderer.extensions.get( 'WEBGL_compressed_texture_etc1' );
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config.dxtSupported = !! renderer.extensions.get( 'WEBGL_compressed_texture_s3tc' );
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config.pvrtcSupported = !! renderer.extensions.get( 'WEBGL_compressed_texture_pvrtc' )
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|| !! renderer.extensions.get( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
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if ( config.astcSupported ) {
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config.format = THREE.BasisTextureLoader.BASIS_FORMAT.cTFASTC_4x4;
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} else if ( config.bc7Supported ) {
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config.format = THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC7_M6_OPAQUE_ONLY;
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} else if ( config.dxtSupported ) {
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config.format = THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC3;
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} else if ( config.etcSupported ) {
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config.format = THREE.BasisTextureLoader.BASIS_FORMAT.cTFETC1;
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} else if ( config.pvrtcSupported ) {
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config.format = this.useAlpha ? THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGBA : THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGB;
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} else {
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throw new Error( 'THREE.BasisTextureLoader: No suitable compressed texture format found.' );
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}
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return this;
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},
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load: function ( url, onLoad, onProgress, onError ) {
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var loader = new THREE.FileLoader( this.manager );
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loader.setResponseType( 'arraybuffer' );
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loader.load( url, ( buffer ) => {
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this._createTexture( buffer )
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.then( onLoad )
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.catch( onError );
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}, onProgress, onError );
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},
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/**
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* @param {ArrayBuffer} buffer
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* @return {Promise<THREE.CompressedTexture>}
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*/
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_createTexture: function ( buffer ) {
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var worker;
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var taskID;
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var taskCost = buffer.byteLength;
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var texturePending = this._allocateWorker( taskCost )
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.then( ( _worker ) => {
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worker = _worker;
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taskID = this.workerNextTaskID ++;
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return new Promise( ( resolve, reject ) => {
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worker._callbacks[ taskID ] = { resolve, reject };
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worker.postMessage( { type: 'transcode', id: taskID, buffer }, [ buffer ] );
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} );
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} )
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.then( ( message ) => {
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var config = this.workerConfig;
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var { width, height, mipmaps, format } = message;
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var texture;
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switch ( format ) {
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFASTC_4x4:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.RGBA_ASTC_4x4_Format );
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break;
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC7_M6_OPAQUE_ONLY:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.BasisTextureLoader.COMPRESSED_RGBA_BPTC_UNORM );
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break;
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC1:
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC3:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.BasisTextureLoader.DXT_FORMAT_MAP[ config.format ], THREE.UnsignedByteType );
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break;
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFETC1:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.RGB_ETC1_Format );
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break;
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGB:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.RGB_PVRTC_4BPPV1_Format );
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break;
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case THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGBA:
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texture = new THREE.CompressedTexture( mipmaps, width, height, THREE.RGBA_PVRTC_4BPPV1_Format );
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break;
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default:
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throw new Error( 'THREE.BasisTextureLoader: No supported format available.' );
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}
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texture.minFilter = mipmaps.length === 1 ? THREE.LinearFilter : THREE.LinearMipmapLinearFilter;
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texture.magFilter = THREE.LinearFilter;
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texture.generateMipmaps = false;
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texture.needsUpdate = true;
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return texture;
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} );
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texturePending
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.finally( () => {
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if ( worker && taskID ) {
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worker._taskLoad -= taskCost;
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delete worker._callbacks[ taskID ];
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}
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} );
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return texturePending;
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},
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_initTranscoder: function () {
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if ( ! this.transcoderPending ) {
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// Load transcoder wrapper.
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var jsLoader = new THREE.FileLoader( this.manager );
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jsLoader.setPath( this.transcoderPath );
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var jsContent = new Promise( ( resolve, reject ) => {
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jsLoader.load( 'basis_transcoder.js', resolve, undefined, reject );
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} );
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// Load transcoder WASM binary.
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var binaryLoader = new THREE.FileLoader( this.manager );
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binaryLoader.setPath( this.transcoderPath );
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binaryLoader.setResponseType( 'arraybuffer' );
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var binaryContent = new Promise( ( resolve, reject ) => {
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binaryLoader.load( 'basis_transcoder.wasm', resolve, undefined, reject );
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} );
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this.transcoderPending = Promise.all( [ jsContent, binaryContent ] )
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.then( ( [ jsContent, binaryContent ] ) => {
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var fn = THREE.BasisTextureLoader.BasisWorker.toString();
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var body = [
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'/* basis_transcoder.js */',
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jsContent,
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'/* worker */',
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fn.substring( fn.indexOf( '{' ) + 1, fn.lastIndexOf( '}' ) )
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].join( '\n' );
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this.workerSourceURL = URL.createObjectURL( new Blob( [ body ] ) );
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this.transcoderBinary = binaryContent;
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} );
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}
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return this.transcoderPending;
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},
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_allocateWorker: function ( taskCost ) {
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return this._initTranscoder().then( () => {
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if ( this.workerPool.length < this.workerLimit ) {
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var worker = new Worker( this.workerSourceURL );
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worker._callbacks = {};
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worker._taskLoad = 0;
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worker.postMessage( {
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type: 'init',
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config: this.workerConfig,
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transcoderBinary: this.transcoderBinary,
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} );
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worker.onmessage = function ( e ) {
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var message = e.data;
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switch ( message.type ) {
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case 'transcode':
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worker._callbacks[ message.id ].resolve( message );
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break;
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case 'error':
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worker._callbacks[ message.id ].reject( message );
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break;
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default:
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console.error( 'THREE.BasisTextureLoader: Unexpected message, "' + message.type + '"' );
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}
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};
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this.workerPool.push( worker );
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} else {
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this.workerPool.sort( function ( a, b ) {
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return a._taskLoad > b._taskLoad ? - 1 : 1;
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} );
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}
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var worker = this.workerPool[ this.workerPool.length - 1 ];
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worker._taskLoad += taskCost;
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return worker;
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} );
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},
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dispose: function () {
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for ( var i = 0; i < this.workerPool.length; i ++ ) {
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this.workerPool[ i ].terminate();
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}
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this.workerPool.length = 0;
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return this;
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}
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} );
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/* CONSTANTS */
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THREE.BasisTextureLoader.BASIS_FORMAT = {
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cTFETC1: 0,
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cTFETC2: 1,
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cTFBC1: 2,
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cTFBC3: 3,
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cTFBC4: 4,
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cTFBC5: 5,
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cTFBC7_M6_OPAQUE_ONLY: 6,
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cTFBC7_M5: 7,
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cTFPVRTC1_4_RGB: 8,
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cTFPVRTC1_4_RGBA: 9,
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cTFASTC_4x4: 10,
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cTFATC_RGB: 11,
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cTFATC_RGBA_INTERPOLATED_ALPHA: 12,
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cTFRGBA32: 13,
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cTFRGB565: 14,
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cTFBGR565: 15,
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cTFRGBA4444: 16,
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};
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// DXT formats, from:
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// http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_s3tc/
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THREE.BasisTextureLoader.DXT_FORMAT = {
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COMPRESSED_RGB_S3TC_DXT1_EXT: 0x83F0,
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COMPRESSED_RGBA_S3TC_DXT1_EXT: 0x83F1,
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COMPRESSED_RGBA_S3TC_DXT3_EXT: 0x83F2,
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COMPRESSED_RGBA_S3TC_DXT5_EXT: 0x83F3,
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};
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THREE.BasisTextureLoader.DXT_FORMAT_MAP = {};
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THREE.BasisTextureLoader.DXT_FORMAT_MAP[ THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC1 ] =
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THREE.BasisTextureLoader.DXT_FORMAT.COMPRESSED_RGB_S3TC_DXT1_EXT;
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THREE.BasisTextureLoader.DXT_FORMAT_MAP[ THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC3 ] =
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THREE.BasisTextureLoader.DXT_FORMAT.COMPRESSED_RGBA_S3TC_DXT5_EXT;
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// ASTC formats, from:
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// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/
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THREE.BasisTextureLoader.COMPRESSED_RGBA_ASTC_4x4_KHR = 0x93B0;
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// BC7/BPTC format, from:
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// https://www.khronos.org/registry/webgl/extensions/EXT_texture_compression_bptc/
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THREE.BasisTextureLoader.COMPRESSED_RGBA_BPTC_UNORM = 0x8E8C;
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/* WEB WORKER */
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THREE.BasisTextureLoader.BasisWorker = function () {
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var config;
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var transcoderPending;
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var _BasisFile;
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onmessage = function ( e ) {
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var message = e.data;
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switch ( message.type ) {
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case 'init':
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config = message.config;
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init( message.transcoderBinary );
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break;
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case 'transcode':
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transcoderPending.then( () => {
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try {
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var { width, height, hasAlpha, mipmaps, format } = transcode( message.buffer );
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var buffers = [];
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for ( var i = 0; i < mipmaps.length; ++ i ) {
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buffers.push( mipmaps[ i ].data.buffer );
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}
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self.postMessage( { type: 'transcode', id: message.id, width, height, hasAlpha, mipmaps, format }, buffers );
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} catch ( error ) {
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console.error( error );
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self.postMessage( { type: 'error', id: message.id, error: error.message } );
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}
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} );
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break;
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}
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};
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function init( wasmBinary ) {
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var BasisModule;
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transcoderPending = new Promise( ( resolve ) => {
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BasisModule = { wasmBinary, onRuntimeInitialized: resolve };
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BASIS( BasisModule );
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} ).then( () => {
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var { BasisFile, initializeBasis } = BasisModule;
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_BasisFile = BasisFile;
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initializeBasis();
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} );
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}
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function transcode( buffer ) {
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var basisFile = new _BasisFile( new Uint8Array( buffer ) );
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var width = basisFile.getImageWidth( 0, 0 );
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var height = basisFile.getImageHeight( 0, 0 );
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var levels = basisFile.getNumLevels( 0 );
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var hasAlpha = basisFile.getHasAlpha();
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function cleanup() {
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basisFile.close();
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basisFile.delete();
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}
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if ( ! hasAlpha ) {
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switch ( config.format ) {
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case 9: // Hardcoded: THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGBA
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config.format = 8; // Hardcoded: THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGB;
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break;
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default:
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break;
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||||
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||||
}
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||||
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}
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||||
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if ( ! width || ! height || ! levels ) {
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cleanup();
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throw new Error( 'THREE.BasisTextureLoader: Invalid .basis file' );
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}
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if ( ! basisFile.startTranscoding() ) {
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cleanup();
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throw new Error( 'THREE.BasisTextureLoader: .startTranscoding failed' );
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}
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||||
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var mipmaps = [];
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for ( var mip = 0; mip < levels; mip ++ ) {
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||||
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||||
var mipWidth = basisFile.getImageWidth( 0, mip );
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var mipHeight = basisFile.getImageHeight( 0, mip );
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var dst = new Uint8Array( basisFile.getImageTranscodedSizeInBytes( 0, mip, config.format ) );
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var status = basisFile.transcodeImage(
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dst,
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0,
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mip,
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config.format,
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0,
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||||
hasAlpha
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);
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||||
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if ( ! status ) {
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||||
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cleanup();
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throw new Error( 'THREE.BasisTextureLoader: .transcodeImage failed.' );
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}
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||||
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mipmaps.push( { data: dst, width: mipWidth, height: mipHeight } );
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||||
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}
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||||
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cleanup();
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||||
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return { width, height, hasAlpha, mipmaps, format: config.format };
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||||
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||||
}
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||||
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||||
};
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||||
+3205
File diff suppressed because it is too large
Load Diff
+8
@@ -0,0 +1,8 @@
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||||
## Credits
|
||||
|
||||
* Contributors:
|
||||
* [Don McCurdy](https://www.donmccurdy.com)
|
||||
* [Austin Eng](https://github.com/austinEng)
|
||||
* [Shrek Shao](https://github.com/shrekshao)
|
||||
* Made with [three.js](https://threejs.org/).
|
||||
* Thanks to [AGI](http://agi.com/) for providing the glTF model.
|
||||
@@ -0,0 +1,254 @@
|
||||
{
|
||||
"accessors": [
|
||||
{
|
||||
"byteOffset": 0,
|
||||
"componentType": 5126,
|
||||
"type": "VEC3",
|
||||
"count": 55381,
|
||||
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],
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||||
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||||
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"images": [
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||||
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||||
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],
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]
|
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}
|
||||
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+131
@@ -0,0 +1,131 @@
|
||||
<!DOCTYPE html>
|
||||
|
||||
<head>
|
||||
<!-- <script src="https://cdn.jsdelivr.net/npm/three@v0.108.0"></script> -->
|
||||
<script src="three.min.js"></script>
|
||||
<script src="GLTFLoader.js"></script>
|
||||
<script src="BasisTextureLoader.js"></script>
|
||||
<script src="https://cdn.jsdelivr.net/npm/three@v0.104.0/examples/js/controls/OrbitControls.js"></script>
|
||||
<style>
|
||||
html, body { width:100%; height:100%; margin:0; padding:0; }
|
||||
canvas { display:block; }
|
||||
#panel { position: absolute; top: 10px; left: 10px; color: white; background-color:rgba(0.3, 0.3, 0.3, 0.3); padding: 0.5em; max-width: 400px;}
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<div id="panel">
|
||||
<strong>Basis Texture Transcoder glTF Demo</strong>
|
||||
<div id="log"></div>
|
||||
|
||||
</div>
|
||||
<script>
|
||||
const renderer = new THREE.WebGLRenderer( { antialias: true } );
|
||||
renderer.setSize( window.innerWidth, window.innerHeight );
|
||||
renderer.gammaOutput = true;
|
||||
renderer.gammaFactor = 2.2;
|
||||
|
||||
const scene = new THREE.Scene();
|
||||
scene.background = new THREE.Color( 0xf0f0f0 );
|
||||
|
||||
const light = new THREE.AmbientLight();
|
||||
scene.add( light );
|
||||
|
||||
const light2 = new THREE.PointLight();
|
||||
scene.add( light2 );
|
||||
|
||||
const camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
|
||||
camera.position.set( 8, 6, 5 );
|
||||
camera.lookAt( new THREE.Vector3( 0, -2, 0 ) );
|
||||
|
||||
const controls = new THREE.OrbitControls( camera, renderer.domElement );
|
||||
controls.autoRotate = true;
|
||||
|
||||
// Create BasisTextureLoader and detect supported target formats.
|
||||
|
||||
const basisLoader = new THREE.BasisTextureLoader();
|
||||
basisLoader.setTranscoderPath( '../transcoder/build/' );
|
||||
basisLoader.useAlpha = false;
|
||||
basisLoader.detectSupport( renderer );
|
||||
|
||||
let formatName = 'Unknown format';
|
||||
switch(basisLoader.workerConfig.format)
|
||||
{
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFASTC_4x4:
|
||||
formatName = 'ASTC';
|
||||
break;
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC1:
|
||||
formatName = 'BC1';
|
||||
break;
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC3:
|
||||
formatName = 'BC3';
|
||||
break;
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFBC7_M6_OPAQUE_ONLY:
|
||||
formatName = 'BC7';
|
||||
break;
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGB:
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFPVRTC1_4_RGBA:
|
||||
formatName = 'PVRTC';
|
||||
break;
|
||||
case THREE.BasisTextureLoader.BASIS_FORMAT.cTFETC1:
|
||||
formatName = 'ETC1';
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
log(`Transcode to: <strong>${formatName}</strong>`);
|
||||
|
||||
// Register BasisTextureLoader for .basis extension.
|
||||
|
||||
let loadingManager = new THREE.LoadingManager();
|
||||
loadingManager.addHandler( /\.basis$/, basisLoader );
|
||||
|
||||
// Create GLTFLoader, load model, and render.
|
||||
|
||||
const loader = new THREE.GLTFLoader(loadingManager);
|
||||
|
||||
loader.load( 'assets/AgiHqSmall.gltf', ( gltf ) => {
|
||||
|
||||
const model = gltf.scene;
|
||||
model.scale.set( 0.01, 0.01, 0.01 );
|
||||
|
||||
scene.add( model );
|
||||
|
||||
document.body.appendChild( renderer.domElement );
|
||||
|
||||
animate();
|
||||
|
||||
}, undefined, ( e ) => console.error( e ) );
|
||||
|
||||
// Main render loop.
|
||||
|
||||
function animate() {
|
||||
|
||||
requestAnimationFrame( animate );
|
||||
controls.update();
|
||||
renderer.render( scene, camera );
|
||||
|
||||
}
|
||||
|
||||
// Support viewport resizing.
|
||||
|
||||
window.addEventListener( 'resize', () => {
|
||||
|
||||
camera.aspect = window.innerWidth / window.innerHeight;
|
||||
camera.updateProjectionMatrix();
|
||||
renderer.setSize( window.innerWidth, window.innerHeight );
|
||||
|
||||
}, false );
|
||||
|
||||
function log(s) {
|
||||
|
||||
const div = document.createElement('div');
|
||||
div.innerHTML = s;
|
||||
document.getElementById('log').appendChild(div);
|
||||
|
||||
}
|
||||
</script>
|
||||
|
||||
</body>
|
||||
|
||||
</html>
|
||||
BIN
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|
After Width: | Height: | Size: 458 KiB |
+1
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user