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webgl_loader_draco.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - loaders - Draco loader</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>
<body>
<div id="container"></div>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> -
<a href="https://github.com/google/draco" target="_blank" rel="noopener">DRACO</a> loader
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { DRACOLoader } from 'three/addons/loaders/DRACOLoader.js';
let camera, scene, renderer;
const container = document.querySelector( '#container' );
// Configure and create Draco decoder.
const dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath( 'js/libs/draco/' );
dracoLoader.setDecoderConfig( { type: 'js' } );
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 0.1, 15 );
camera.position.set( 3, 0.25, 3 );
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x443333 );
scene.fog = new THREE.Fog( 0x443333, 1, 4 );
// Ground
const plane = new THREE.Mesh(
new THREE.PlaneGeometry( 8, 8 ),
new THREE.MeshPhongMaterial( { color: 0x999999, specular: 0x101010 } )
);
plane.rotation.x = - Math.PI / 2;
plane.position.y = 0.03;
plane.receiveShadow = true;
scene.add( plane );
// Lights
const hemiLight = new THREE.HemisphereLight( 0x443333, 0x111122 );
scene.add( hemiLight );
const spotLight = new THREE.SpotLight();
spotLight.angle = Math.PI / 16;
spotLight.penumbra = 0.5;
spotLight.castShadow = true;
spotLight.position.set( - 1, 1, 1 );
scene.add( spotLight );
dracoLoader.load( 'models/draco/bunny.drc', function ( geometry ) {
geometry.computeVertexNormals();
const material = new THREE.MeshStandardMaterial( { color: 0x606060 } );
const mesh = new THREE.Mesh( geometry, material );
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh );
// Release decoder resources.
dracoLoader.dispose();
} );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.shadowMap.enabled = true;
container.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
render();
requestAnimationFrame( animate );
}
function render() {
const timer = Date.now() * 0.0003;
camera.position.x = Math.sin( timer ) * 0.5;
camera.position.z = Math.cos( timer ) * 0.5;
camera.lookAt( 0, 0.1, 0 );
renderer.render( scene, camera );
}
</script>
</body>
</html>