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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>three.js webgpu - projector light</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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+
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+ <div id="info">
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+ <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - projector light<br />
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+ </div>
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+
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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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+
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+ <video id="video" loop muted crossOrigin="anonymous" playsinline style="display:none">
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+ <source src="textures/sintel.ogv" type='video/ogg; codecs="theora, vorbis"'>
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+ <source src="textures/sintel.mp4" type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'>
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+ </video>
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+
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+ <script type="module">
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+
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+ import * as THREE from 'three';
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+ import { Fn, color, mx_worley_noise_float, time } from 'three/tsl';
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+
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+ import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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+
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+ import { PLYLoader } from 'three/addons/loaders/PLYLoader.js';
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+ import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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+
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+ let renderer, scene, camera;
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+
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+ let projectorLight, lightHelper;
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+
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+ init();
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+
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+ function init() {
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+
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+ // Renderer
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+
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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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+ document.body.appendChild( renderer.domElement );
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+
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+ renderer.shadowMap.enabled = true;
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+ renderer.shadowMap.type = THREE.PCFSoftShadowMap;
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+
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+ renderer.toneMapping = THREE.ACESFilmicToneMapping;
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+ renderer.toneMappingExposure = 1;
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+
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+ scene = new THREE.Scene();
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+
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+ camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 0.1, 100 );
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+ camera.position.set( 7, 4, 1 );
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+
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+ // Controls
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+
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+ const controls = new OrbitControls( camera, renderer.domElement );
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+ controls.minDistance = 2;
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+ controls.maxDistance = 10;
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+ controls.maxPolarAngle = Math.PI / 2;
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+ controls.target.set( 0, 1, 0 );
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+ controls.update();
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+
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+ // Textures
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+
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+ const loader = new THREE.TextureLoader().setPath( 'textures/' );
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+
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+ // Lights
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+
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+ const causticEffect = Fn( ( [ projectorUV ] ) => {
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+
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+ const waterLayer0 = mx_worley_noise_float( projectorUV.mul( 10 ).add( time ) );
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+
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+ const caustic = waterLayer0.mul( color( 0x5abcd8 ) ).mul( 2 );
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+
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+ return caustic;
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+
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+ } );
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+
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+
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+ const ambient = new THREE.HemisphereLight( 0xffffff, 0x8d8d8d, 0.15 );
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+ scene.add( ambient );
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+
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+ projectorLight = new THREE.ProjectorLight( 0xffffff, 100 );
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+ projectorLight.colorNode = causticEffect;
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+ projectorLight.position.set( 2.5, 5, 2.5 );
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+ projectorLight.angle = Math.PI / 6;
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+ projectorLight.penumbra = 1;
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+ projectorLight.decay = 2;
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+ projectorLight.distance = 0;
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+
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+ projectorLight.castShadow = true;
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+ projectorLight.shadow.mapSize.width = 1024;
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+ projectorLight.shadow.mapSize.height = 1024;
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+ projectorLight.shadow.camera.near = 1;
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+ projectorLight.shadow.camera.far = 10;
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+ projectorLight.shadow.focus = 1;
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+ projectorLight.shadow.bias = - .003;
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+ scene.add( projectorLight );
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+
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+ lightHelper = new THREE.SpotLightHelper( projectorLight );
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+ scene.add( lightHelper );
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+
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+ //
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+
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+ const geometry = new THREE.PlaneGeometry( 200, 200 );
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+ const material = new THREE.MeshLambertMaterial( { color: 0xbcbcbc } );
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+
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+ const mesh = new THREE.Mesh( geometry, material );
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+ mesh.position.set( 0, - 1, 0 );
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+ mesh.rotation.x = - Math.PI / 2;
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+ mesh.receiveShadow = true;
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+ scene.add( mesh );
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+
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+ // Models
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+
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+ new PLYLoader().load( 'models/ply/binary/Lucy100k.ply', function ( geometry ) {
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+
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+ geometry.scale( 0.0024, 0.0024, 0.0024 );
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+ geometry.computeVertexNormals();
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+
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+ const material = new THREE.MeshLambertMaterial();
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+
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+ const mesh = new THREE.Mesh( geometry, material );
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+ mesh.rotation.y = - Math.PI / 2;
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+ mesh.position.y = 0.8;
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+ mesh.castShadow = true;
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+ mesh.receiveShadow = true;
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+ scene.add( mesh );
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+
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+ } );
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ // GUI
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+
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+ const gui = new GUI();
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+
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+ const params = {
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+ type: 'procedural',
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+ color: projectorLight.color.getHex(),
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+ intensity: projectorLight.intensity,
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+ distance: projectorLight.distance,
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+ angle: projectorLight.angle,
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+ penumbra: projectorLight.penumbra,
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+ decay: projectorLight.decay,
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+ focus: projectorLight.shadow.focus,
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+ shadows: true,
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+ };
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+
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+ let videoTexture, mapTexture;
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+
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+ gui.add( params, 'type', [ 'procedural', 'video', 'texture' ] ).onChange( function ( val ) {
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+
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+ projectorLight.colorNode = null;
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+ projectorLight.map = null;
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+
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+ if ( val === 'procedural' ) {
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+
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+ projectorLight.colorNode = causticEffect;
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+
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+ focus.setValue( 1 );
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+
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+ } else if ( val === 'video' ) {
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+
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+ if ( videoTexture === undefined ) {
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+
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+ const video = document.getElementById( 'video' );
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+ video.play();
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+
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+ videoTexture = new THREE.VideoTexture( video );
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+
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+ }
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+
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+ projectorLight.map = videoTexture;
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+
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+ focus.setValue( .46 );
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+
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+ } else if ( val === 'texture' ) {
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+
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+ mapTexture = loader.load( 'colors.png' );
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+ mapTexture.minFilter = THREE.LinearFilter;
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+ mapTexture.magFilter = THREE.LinearFilter;
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+ mapTexture.generateMipmaps = false;
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+ mapTexture.colorSpace = THREE.SRGBColorSpace;
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+
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+ projectorLight.map = mapTexture;
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+
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+ focus.setValue( 1 );
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+
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+ }
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+
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+ } );
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+
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+ gui.addColor( params, 'color' ).onChange( function ( val ) {
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+
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+ projectorLight.color.setHex( val );
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+
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+ } );
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+
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+ gui.add( params, 'intensity', 0, 500 ).onChange( function ( val ) {
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+
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+ projectorLight.intensity = val;
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+
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+ } );
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+
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+
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+ gui.add( params, 'distance', 0, 20 ).onChange( function ( val ) {
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+
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+ projectorLight.distance = val;
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+
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+ } );
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+
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+ gui.add( params, 'angle', 0, Math.PI / 3 ).onChange( function ( val ) {
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+
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+ projectorLight.angle = val;
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+
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+ } );
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+
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+ gui.add( params, 'penumbra', 0, 1 ).onChange( function ( val ) {
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+
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+ projectorLight.penumbra = val;
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+
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+ } );
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+
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+ gui.add( params, 'decay', 1, 2 ).onChange( function ( val ) {
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+
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+ projectorLight.decay = val;
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+
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+ } );
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+
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+ const focus = gui.add( params, 'focus', 0, 1 ).onChange( function ( val ) {
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+
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+ projectorLight.shadow.focus = val;
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+
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+ } );
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+
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+ gui.add( params, 'shadows' ).onChange( function ( val ) {
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+
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+ renderer.shadowMap.enabled = val;
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+
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+ scene.traverse( function ( child ) {
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+
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+ if ( child.material ) {
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+
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+ child.material.needsUpdate = true;
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+
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+ }
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+
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+ } );
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+
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+ } );
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+
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+ gui.open();
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }
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+
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+ function animate() {
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+
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+ const time = performance.now() / 3000;
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+
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+ projectorLight.position.x = Math.cos( time ) * 2.5;
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+ projectorLight.position.z = Math.sin( time ) * 2.5;
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+
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+ lightHelper.update();
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+
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+
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+</html>
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sunag
