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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 - spotlight</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 - spotlight<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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+ <script type="module">
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+
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+ import * as THREE from 'three';
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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 spotLight, 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 = 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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+ 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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+ const ambient = new THREE.HemisphereLight( 0xffffff, 0x8d8d8d, 0.15 );
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+ scene.add( ambient );
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+
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+ const loader = new THREE.TextureLoader().setPath( 'textures/' );
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+ const filenames = [ 'disturb.jpg', 'colors.png', 'uv_grid_opengl.jpg' ];
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+
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+ const textures = { none: null };
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+
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+ for ( let i = 0; i < filenames.length; i ++ ) {
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+
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+ const filename = filenames[ i ];
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+
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+ const texture = loader.load( filename );
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+ texture.minFilter = THREE.LinearFilter;
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+ texture.magFilter = THREE.LinearFilter;
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+ texture.generateMipmaps = false;
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+ texture.colorSpace = THREE.SRGBColorSpace;
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+
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+ textures[ filename ] = texture;
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+
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+ }
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+
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+ spotLight = new THREE.SpotLight( 0xffffff, 100 );
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+ spotLight.position.set( 2.5, 5, 2.5 );
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+ spotLight.angle = Math.PI / 6;
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+ spotLight.penumbra = 1;
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+ spotLight.decay = 2;
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+ spotLight.distance = 0;
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+ spotLight.map = textures[ 'disturb.jpg' ];
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+
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+ spotLight.castShadow = true;
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+ spotLight.shadow.mapSize.width = 1024;
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+ spotLight.shadow.mapSize.height = 1024;
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+ spotLight.shadow.camera.near = 1;
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+ spotLight.shadow.camera.far = 10;
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+ spotLight.shadow.focus = 1;
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+ spotLight.shadow.bias = - .003;
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+ scene.add( spotLight );
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+
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+ lightHelper = new THREE.SpotLightHelper( spotLight );
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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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+ //
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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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+ map: textures[ 'disturb.jpg' ],
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+ color: spotLight.color.getHex(),
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+ intensity: spotLight.intensity,
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+ distance: spotLight.distance,
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+ angle: spotLight.angle,
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+ penumbra: spotLight.penumbra,
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+ decay: spotLight.decay,
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+ focus: spotLight.shadow.focus,
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+ shadows: true
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+ };
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+
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+ gui.add( params, 'map', textures ).onChange( function ( val ) {
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+
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+ spotLight.map = val;
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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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+ spotLight.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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+ spotLight.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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+ spotLight.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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+ spotLight.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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+ spotLight.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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+ spotLight.decay = val;
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+
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+ } );
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+
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+ gui.add( params, 'focus', 0, 1 ).onChange( function ( val ) {
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+
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+ spotLight.shadow.focus = val;
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+
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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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+ spotLight.position.x = Math.cos( time ) * 2.5;
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+ spotLight.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
