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235 lines
6.2 KiB
HTML
235 lines
6.2 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgpu - tiled lighting</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - Compute-based Tiled Lighting<br />
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</div>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.webgpu.js",
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"three/webgpu": "../build/three.webgpu.js",
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"three/tsl": "../build/three.tsl.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { texture, uv, pass, normalMap, uniform } from 'three/tsl';
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import { bloom } from 'three/addons/tsl/display/BloomNode.js';
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import { TiledLighting } from 'three/addons/lighting/TiledLighting.js';
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import Stats from 'three/addons/libs/stats.module.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import WebGPU from 'three/addons/capabilities/WebGPU.js';
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let camera, scene, renderer,
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lights, lightDummy,
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stats, controls,
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compose, tileInfluence,
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lighting,
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count,
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postProcessing;
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init();
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function init() {
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if ( WebGPU.isAvailable() === false ) {
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document.body.appendChild( WebGPU.getErrorMessage() );
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throw new Error( 'No WebGPU support' );
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}
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camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 600 );
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camera.position.z = 200;
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camera.position.y = 30;
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scene = new THREE.Scene();
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scene.fog = new THREE.Fog( 0x111111, 300, 500 );
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scene.background = new THREE.Color( 0x111111 );
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count = 1000;
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const material = new THREE.MeshBasicMaterial();
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lightDummy = new THREE.InstancedMesh( new THREE.SphereGeometry( 0.1, 16, 8 ), material, count );
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lightDummy.instanceMatrix.setUsage( THREE.DynamicDrawUsage );
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scene.add( lightDummy );
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// lights
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lights = new THREE.Group();
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scene.add( lights );
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const addLight = ( hexColor, power = 10, distance = 3 ) => {
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const light = new THREE.PointLight( hexColor, 1, distance );
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light.position.set( Math.random() * 300 - 150, 1, Math.random() * 300 - 150 );
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light.power = power;
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light.userData.fixedPosition = light.position.clone();
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lights.add( light );
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return light;
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};
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const color = new THREE.Color();
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for ( let i = 0; i < count; i ++ ) {
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const hex = ( Math.random() * 0xffffff ) + 0x666666;
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lightDummy.setColorAt( i, color.setHex( hex ) );
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addLight( hex );
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}
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//
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const lightAmbient = new THREE.AmbientLight( 0xffffff, .1 );
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scene.add( lightAmbient );
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// textures
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const textureLoader = new THREE.TextureLoader();
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const floorColor = textureLoader.load( 'textures/floors/FloorsCheckerboard_S_Diffuse.jpg' );
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floorColor.wrapS = THREE.RepeatWrapping;
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floorColor.wrapT = THREE.RepeatWrapping;
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floorColor.colorSpace = THREE.SRGBColorSpace;
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const floorNormal = textureLoader.load( 'textures/floors/FloorsCheckerboard_S_Normal.jpg' );
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floorNormal.wrapS = THREE.RepeatWrapping;
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floorNormal.wrapT = THREE.RepeatWrapping;
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const uvTile = uv().mul( 50 );
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const planeGeometry = new THREE.PlaneGeometry( 1000, 1000 );
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const planeMaterial = new THREE.MeshPhongNodeMaterial( {
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colorNode: texture( floorColor, uvTile ),
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normalNode: normalMap( texture( floorNormal, uvTile ) ),
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} );
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const ground = new THREE.Mesh( planeGeometry, planeMaterial );
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ground.rotation.x = - Math.PI / 2;
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ground.position.y = 0;
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ground.castShadow = true;
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ground.receiveShadow = true;
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scene.add( ground );
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// renderer
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lighting = new TiledLighting(); // ( maxLights = 1024, tileSize = 32 )
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renderer = new THREE.WebGPURenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( animate );
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renderer.lighting = lighting; // set lighting system
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renderer.toneMapping = THREE.NeutralToneMapping;
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renderer.toneMappingExposure = 5;
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document.body.appendChild( renderer.domElement );
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// controls
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controls = new OrbitControls( camera, renderer.domElement );
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controls.maxDistance = 400;
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// stats
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stats = new Stats();
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document.body.appendChild( stats.dom );
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window.addEventListener( 'resize', onWindowResize );
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// post processing
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const scenePass = pass( scene, camera );
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const bloomPass = bloom( scenePass, 3, .9, .2 );
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// compose
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compose = scenePass.add( bloomPass );
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tileInfluence = uniform( 0 );
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postProcessing = new THREE.PostProcessing( renderer );
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updatePostProcessing();
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// gui
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const gui = new GUI();
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gui.add( tileInfluence, 'value', 0, 1 ).name( 'tile indexes debug' );
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}
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function updatePostProcessing() {
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// tile indexes debug, needs to be updated every time the renderer size changes
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const debugBlockIndexes = lighting.getNode( scene, camera ).setSize( window.innerWidth * window.devicePixelRatio, window.innerHeight * window.devicePixelRatio ).getBlock().toColor().div( count * 2 );
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postProcessing.outputNode = compose.add( debugBlockIndexes.mul( tileInfluence ) );
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postProcessing.needsUpdate = true;
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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updatePostProcessing();
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}
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function animate() {
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const time = performance.now() / 1000;
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for ( let i = 0; i < lights.children.length; i ++ ) {
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const light = lights.children[ i ];
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const lightTime = ( time * 0.5 ) + light.id;
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light.position.copy( light.userData.fixedPosition );
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light.position.x += Math.sin( lightTime * 0.7 ) * 3;
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light.position.y += Math.cos( lightTime * 0.5 ) * .5;
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light.position.z += Math.cos( lightTime * 0.3 ) * 3;
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lightDummy.setMatrixAt( i, light.matrixWorld );
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}
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postProcessing.render();
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stats.update();
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}
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</script>
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</body>
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</html>
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