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Merge pull request #21114 from zeux/gltf-compressed
Examples: Add glTF compression example
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<!DOCTYPE html> | ||
<html lang="en"> | ||
<head> | ||
<title>three.js webgl - glTF 2.0 - compressed</title> | ||
<meta charset="utf-8"> | ||
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0"> | ||
<link type="text/css" rel="stylesheet" href="main.css"> | ||
</head> | ||
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<body> | ||
<div id="info"> | ||
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - GLTFLoader + compression extensions<br /> | ||
<a href="https://sketchfab.com/3d-models/coffeemat-7fb196a40a6e4697aad9ca2f75c8b33d" target="_blank" rel="noopener">Coffeemat</a> by | ||
<a href="https://sketchfab.com/OFFcours1" target="_blank" rel="noopener">Roman Red</a><br /> | ||
<a href="https://hdrihaven.com/hdri/?h=royal_esplanade" target="_blank" rel="noopener">Royal Esplanade</a> by <a href="https://hdrihaven.com/" target="_blank" rel="noopener">HDRI Haven</a> | ||
</div> | ||
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<script src="./js/libs/basis/msc_basis_transcoder.js"></script> | ||
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<script type="module"> | ||
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import * as THREE from '../build/three.module.js'; | ||
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import { OrbitControls } from './jsm/controls/OrbitControls.js'; | ||
import { GLTFLoader } from './jsm/loaders/GLTFLoader.js'; | ||
import { RGBELoader } from './jsm/loaders/RGBELoader.js'; | ||
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import { KTX2Loader } from './jsm/loaders/KTX2Loader.js'; | ||
import { MeshoptDecoder } from './jsm/libs/meshopt_decoder.module.js'; | ||
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let camera, scene, renderer; | ||
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init(); | ||
render(); | ||
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function init() { | ||
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const container = document.createElement( 'div' ); | ||
document.body.appendChild( container ); | ||
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renderer = new THREE.WebGLRenderer( { antialias: true } ); | ||
renderer.setPixelRatio( window.devicePixelRatio ); | ||
renderer.setSize( window.innerWidth, window.innerHeight ); | ||
renderer.toneMapping = THREE.ACESFilmicToneMapping; | ||
renderer.toneMappingExposure = 1; | ||
renderer.outputEncoding = THREE.sRGBEncoding; | ||
container.appendChild( renderer.domElement ); | ||
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 ); | ||
camera.position.set( 0, 90, 0 ); | ||
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scene = new THREE.Scene(); | ||
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const ktx2Loader = new KTX2Loader().detectSupport( renderer ); | ||
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new RGBELoader() | ||
.setDataType( THREE.UnsignedByteType ) | ||
.setPath( 'textures/equirectangular/' ) | ||
.load( 'royal_esplanade_1k.hdr', function ( texture ) { | ||
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const envMap = pmremGenerator.fromEquirectangular( texture ).texture; | ||
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scene.background = envMap; | ||
scene.environment = envMap; | ||
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texture.dispose(); | ||
pmremGenerator.dispose(); | ||
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render(); | ||
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// model | ||
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const loader = new GLTFLoader().setPath( 'models/gltf/' ); | ||
loader.setKTX2Loader( ktx2Loader ); | ||
loader.setMeshoptDecoder( MeshoptDecoder ); | ||
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// coffeemat.glb was produced from the source scene using gltfpack: | ||
// gltfpack -i coffeemat/scene.gltf -o coffeemat.glb -cc -tc | ||
// The resulting model uses EXT_meshopt_compression (for geometry) and KHR_texture_basisu (for texture compression using ETC1S/BasisLZ) | ||
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loader.load( 'coffeemat.glb', function ( gltf ) { | ||
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scene.add( gltf.scene ); | ||
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render(); | ||
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} ); | ||
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} ); | ||
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const pmremGenerator = new THREE.PMREMGenerator( renderer ); | ||
pmremGenerator.compileEquirectangularShader(); | ||
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const controls = new OrbitControls( camera, renderer.domElement ); | ||
controls.addEventListener( 'change', render ); // use if there is no animation loop | ||
controls.minDistance = 500; | ||
controls.maxDistance = 1000; | ||
controls.target.set( 10, 76, -16 ); | ||
controls.update(); | ||
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window.addEventListener( 'resize', onWindowResize, false ); | ||
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} | ||
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function onWindowResize() { | ||
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camera.aspect = window.innerWidth / window.innerHeight; | ||
camera.updateProjectionMatrix(); | ||
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renderer.setSize( window.innerWidth, window.innerHeight ); | ||
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render(); | ||
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} | ||
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// | ||
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function render() { | ||
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renderer.render( scene, camera ); | ||
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} | ||
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</script> | ||
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</body> | ||
</html> |