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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js - WebGPU - Skinning Instancing</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="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - WebGPU - Skinning Instancing
</div>
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/",
"three/nodes": "./jsm/nodes/Nodes.js"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import * as Nodes from 'three/nodes';
import { mix, range, color, oscSine, timerLocal } from 'three/nodes';
import { FBXLoader } from 'three/addons/loaders/FBXLoader.js';
import WebGPU from 'three/addons/capabilities/WebGPU.js';
import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
let camera, scene, renderer;
let mixer, clock;
init();
function init() {
if ( WebGPU.isAvailable() === false ) {
document.body.appendChild( WebGPU.getErrorMessage() );
throw new Error( 'No WebGPU support' );
}
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.01, 100 );
camera.position.set( 1, 2, 3 );
scene = new THREE.Scene();
camera.lookAt( 0, 1, 0 );
clock = new THREE.Clock();
//lights
const centerLight = new THREE.PointLight( 0xff9900, 1, 100 );
centerLight.position.y = 4.5;
centerLight.position.z = - 2;
centerLight.power = 1700;
scene.add( centerLight );
const cameraLight = new THREE.PointLight( 0x0099ff, 1, 100 );
cameraLight.power = 1700;
camera.add( cameraLight );
scene.add( camera );
const loader = new FBXLoader();
loader.load( 'models/fbx/Samba Dancing.fbx', ( object ) => {
object.scale.setScalar( .01 );
mixer = new THREE.AnimationMixer( object );
const action = mixer.clipAction( object.animations[ 0 ] );
action.play();
const instanceCount = 30;
const dummy = new THREE.Object3D();
object.traverse( ( child ) => {
if ( child.isMesh ) {
const oscNode = oscSine( timerLocal( .1 ) );
// random colors between instances from 0x000000 to 0xFFFFFF
const randomColors = range( new THREE.Color( 0x000000 ), new THREE.Color( 0xFFFFFF ) );
// random [ 0, 1 ] values between instances
const randomMetalness = range( 0, 1 );
child.material = new Nodes.MeshStandardNodeMaterial();
child.material.roughness = .1;
child.material.metalnessNode = mix( 0.0, randomMetalness, oscNode );
child.material.colorNode = mix( color( 0xFFFFFF ), randomColors, oscNode );
child.isInstancedMesh = true;
child.instanceMatrix = new THREE.InstancedBufferAttribute( new Float32Array( instanceCount * 16 ), 16 );
child.count = instanceCount;
for ( let i = 0; i < instanceCount; i ++ ) {
dummy.position.x = - 200 + ( ( i % 5 ) * 70 );
dummy.position.z = Math.floor( i / 5 ) * - 200;
dummy.updateMatrix();
dummy.matrix.toArray( child.instanceMatrix.array, i * 16 );
}
}
} );
scene.add( object );
} );
//renderer
renderer = new WebGPURenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animate );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.toneMappingNode = new Nodes.ToneMappingNode( THREE.LinearToneMapping, .17 );
document.body.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() {
const delta = clock.getDelta();
if ( mixer ) mixer.update( delta );
renderer.render( scene, camera );
}
</script>
</body>
</html>