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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - instance uniform</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 - instance uniform
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.webgpu.js",
- "three/tsl": "../build/three.webgpu.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { nodeObject, uniform, cubeTexture } from 'three/tsl';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { TeapotGeometry } from 'three/addons/geometries/TeapotGeometry.js';
- import Stats from 'three/addons/libs/stats.module.js';
- class InstanceUniformNode extends THREE.Node {
- constructor() {
- super( 'vec3' );
- this.updateType = THREE.NodeUpdateType.OBJECT;
- this.uniformNode = uniform( new THREE.Color() );
- }
- update( frame ) {
- const mesh = frame.object;
- const meshColor = mesh.color;
- this.uniformNode.value.copy( meshColor );
- }
- setup( /*builder*/ ) {
- return this.uniformNode;
- }
- }
- let stats;
- let camera, scene, renderer;
- let controls;
- const objects = [];
- init();
- function init() {
- const container = document.createElement( 'div' );
- document.body.appendChild( container );
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 4000 );
- camera.position.set( 0, 200, 1200 );
- scene = new THREE.Scene();
- // Grid
- const helper = new THREE.GridHelper( 1000, 40, 0x303030, 0x303030 );
- helper.position.y = - 75;
- scene.add( helper );
- // CubeMap
- const path = 'textures/cube/SwedishRoyalCastle/';
- const format = '.jpg';
- const urls = [
- path + 'px' + format, path + 'nx' + format,
- path + 'py' + format, path + 'ny' + format,
- path + 'pz' + format, path + 'nz' + format
- ];
- const cTexture = new THREE.CubeTextureLoader().load( urls );
- // Materials
- const instanceUniform = nodeObject( new InstanceUniformNode() );
- const cubeTextureNode = cubeTexture( cTexture );
- const material = new THREE.MeshBasicNodeMaterial();
- material.colorNode = instanceUniform.add( cubeTextureNode );
- material.emissiveNode = instanceUniform.mul( cubeTextureNode );
- // Geometry
- const geometry = new TeapotGeometry( 50, 18 );
- for ( let i = 0, l = 12; i < l; i ++ ) {
- addMesh( geometry, material );
- }
- //
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- container.appendChild( renderer.domElement );
- //
- controls = new OrbitControls( camera, renderer.domElement );
- controls.minDistance = 400;
- controls.maxDistance = 2000;
- //
- stats = new Stats();
- container.appendChild( stats.dom );
- //
- window.addEventListener( 'resize', onWindowResize );
- }
- function addMesh( geometry, material ) {
- const mesh = new THREE.Mesh( geometry, material );
- mesh.color = new THREE.Color( Math.random() * 0xffffff );
- mesh.position.x = ( objects.length % 4 ) * 200 - 300;
- mesh.position.z = Math.floor( objects.length / 4 ) * 200 - 200;
- mesh.rotation.x = Math.random() * 200 - 100;
- mesh.rotation.y = Math.random() * 200 - 100;
- mesh.rotation.z = Math.random() * 200 - 100;
- objects.push( mesh );
- scene.add( mesh );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- //
- function animate() {
- for ( let i = 0, l = objects.length; i < l; i ++ ) {
- const object = objects[ i ];
- object.rotation.x += 0.01;
- object.rotation.y += 0.005;
- }
- renderer.render( scene, camera );
- stats.update();
- }
- </script>
- </body>
- </html>
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