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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - light probe</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 - light probe
- </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 { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { LightProbeGenerator } from 'three/addons/lights/LightProbeGenerator.js';
- import { LightProbeHelper } from 'three/addons/helpers/LightProbeHelperGPU.js';
- let mesh, renderer, scene, camera;
- let gui;
- let lightProbe;
- let directionalLight;
- // linear color space
- const API = {
- lightProbeIntensity: 1.0,
- directionalLightIntensity: 0.6,
- envMapIntensity: 1
- };
- init();
- function init() {
- // renderer
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- document.body.appendChild( renderer.domElement );
- // tone mapping
- renderer.toneMapping = THREE.NoToneMapping;
- // scene
- scene = new THREE.Scene();
- // camera
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 1000 );
- camera.position.set( 0, 0, 30 );
- // controls
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.minDistance = 10;
- controls.maxDistance = 50;
- controls.enablePan = false;
- // probe
- lightProbe = new THREE.LightProbe();
- scene.add( lightProbe );
- // light
- directionalLight = new THREE.DirectionalLight( 0xffffff, API.directionalLightIntensity );
- directionalLight.position.set( 10, 10, 10 );
- scene.add( directionalLight );
- // envmap
- const genCubeUrls = function ( prefix, postfix ) {
- return [
- prefix + 'px' + postfix, prefix + 'nx' + postfix,
- prefix + 'py' + postfix, prefix + 'ny' + postfix,
- prefix + 'pz' + postfix, prefix + 'nz' + postfix
- ];
- };
- const urls = genCubeUrls( 'textures/cube/pisa/', '.png' );
- new THREE.CubeTextureLoader().load( urls, function ( cubeTexture ) {
- scene.background = cubeTexture;
- lightProbe.copy( LightProbeGenerator.fromCubeTexture( cubeTexture ) );
- lightProbe.intensity = API.lightProbeIntensity;
- lightProbe.position.set( - 10, 0, 0 ); // position not used in scene lighting calculations (helper honors the position, however)
- const geometry = new THREE.SphereGeometry( 5, 64, 32 );
- //const geometry = new THREE.TorusKnotGeometry( 4, 1.5, 256, 32, 2, 3 );
- const material = new THREE.MeshStandardMaterial( {
- color: 0xffffff,
- metalness: 0,
- roughness: 0,
- envMap: cubeTexture,
- envMapIntensity: API.envMapIntensity,
- } );
- // mesh
- mesh = new THREE.Mesh( geometry, material );
- scene.add( mesh );
- // helper
- const helper = new LightProbeHelper( lightProbe, 1 );
- scene.add( helper );
- } );
- // gui
- gui = new GUI( { title: 'Intensity' } );
- gui.add( API, 'lightProbeIntensity', 0, 1, 0.02 )
- .name( 'light probe' )
- .onChange( function () {
- lightProbe.intensity = API.lightProbeIntensity;
- } );
- gui.add( API, 'directionalLightIntensity', 0, 1, 0.02 )
- .name( 'directional light' )
- .onChange( function () {
- directionalLight.intensity = API.directionalLightIntensity;
- } );
- gui.add( API, 'envMapIntensity', 0, 1, 0.02 )
- .name( 'envMap' )
- .onChange( function () {
- mesh.material.envMapIntensity = API.envMapIntensity;
- } );
- // listener
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- renderer.setSize( window.innerWidth, window.innerHeight );
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- }
- function animate() {
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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