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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - shadow map</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 - webgpu shadow map
- </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 { mx_fractal_noise_vec3, positionWorld, vec4, Fn, color, vertexIndex, hash } from 'three/tsl';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- let camera, scene, renderer, clock;
- let dirLight, spotLight;
- let torusKnot, dirGroup;
- init();
- function init() {
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
- camera.position.set( 0, 10, 20 );
- scene = new THREE.Scene();
- scene.backgroundNode = color( 0x222244 );
- scene.fog = new THREE.Fog( 0x222244, 50, 100 );
- // lights
- scene.add( new THREE.AmbientLight( 0x444444, 2 ) );
- spotLight = new THREE.SpotLight( 0xff8888, 400 );
- spotLight.angle = Math.PI / 5;
- spotLight.penumbra = 0.3;
- spotLight.position.set( 8, 10, 5 );
- spotLight.castShadow = true;
- spotLight.shadow.camera.near = 8;
- spotLight.shadow.camera.far = 200;
- spotLight.shadow.mapSize.width = 2048;
- spotLight.shadow.mapSize.height = 2048;
- spotLight.shadow.bias = - 0.002;
- spotLight.shadow.radius = 4;
- scene.add( spotLight );
- dirLight = new THREE.DirectionalLight( 0x8888ff, 3 );
- dirLight.position.set( 3, 12, 17 );
- dirLight.castShadow = true;
- dirLight.shadow.camera.near = 0.1;
- dirLight.shadow.camera.far = 500;
- dirLight.shadow.camera.right = 17;
- dirLight.shadow.camera.left = - 17;
- dirLight.shadow.camera.top = 17;
- dirLight.shadow.camera.bottom = - 17;
- dirLight.shadow.mapSize.width = 2048;
- dirLight.shadow.mapSize.height = 2048;
- dirLight.shadow.radius = 4;
- dirLight.shadow.bias = - 0.0005;
- dirGroup = new THREE.Group();
- dirGroup.add( dirLight );
- scene.add( dirGroup );
- // geometry
- const geometry = new THREE.TorusKnotGeometry( 25, 8, 75, 80 );
- const material = new THREE.MeshPhongNodeMaterial( {
- color: 0x999999,
- shininess: 0,
- specular: 0x222222
- } );
- const materialCustomShadow = material.clone();
- materialCustomShadow.transparent = true;
- const materialColor = vec4( 1, 0, 1, .5 );
-
- const discardNode = hash( vertexIndex ).greaterThan( 0.5 );
- materialCustomShadow.colorNode = Fn( () => {
- discardNode.discard();
- return materialColor;
- } )();
- materialCustomShadow.shadowNode = Fn( () => {
- discardNode.discard();
- return materialColor;
-
- } )();
- torusKnot = new THREE.Mesh( geometry, materialCustomShadow );
- torusKnot.scale.multiplyScalar( 1 / 18 );
- torusKnot.position.y = 3;
- torusKnot.castShadow = true;
- torusKnot.receiveShadow = true;
- scene.add( torusKnot );
- const cylinderGeometry = new THREE.CylinderGeometry( 0.75, 0.75, 7, 32 );
- const pillar1 = new THREE.Mesh( cylinderGeometry, material );
- pillar1.position.set( 8, 3.5, 8 );
- pillar1.castShadow = true;
- const pillar2 = pillar1.clone();
- pillar2.position.set( 8, 3.5, - 8 );
- const pillar3 = pillar1.clone();
- pillar3.position.set( - 8, 3.5, 8 );
- const pillar4 = pillar1.clone();
- pillar4.position.set( - 8, 3.5, - 8 );
- scene.add( pillar1 );
- scene.add( pillar2 );
- scene.add( pillar3 );
- scene.add( pillar4 );
- const planeGeometry = new THREE.PlaneGeometry( 200, 200 );
- const planeMaterial = new THREE.MeshPhongMaterial( {
- color: 0x999999,
- shininess: 0,
- specular: 0x111111
- } );
- planeMaterial.shadowPositionNode = Fn( () => {
- const pos = positionWorld.toVar();
- pos.xz.addAssign( mx_fractal_noise_vec3( positionWorld.mul( 2 ) ).saturate().xz );
- return pos;
- } )();
- planeMaterial.colorNode = Fn( () => {
- const pos = positionWorld.toVar();
- pos.xz.addAssign( mx_fractal_noise_vec3( positionWorld.mul( 2 ) ).saturate().xz );
- return mx_fractal_noise_vec3( positionWorld.mul( 2 ) ).saturate().zzz.mul( 0.2 ).add( .5 );
- } )();
- const ground = new THREE.Mesh( planeGeometry, planeMaterial );
- ground.rotation.x = - Math.PI / 2;
- ground.scale.multiplyScalar( 3 );
- ground.castShadow = true;
- ground.receiveShadow = true;
- scene.add( ground );
- // renderer
- renderer = new THREE.WebGPURenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- renderer.shadowMap.enabled = true;
- renderer.toneMapping = THREE.ACESFilmicToneMapping;
- document.body.appendChild( renderer.domElement );
- // Mouse control
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.target.set( 0, 2, 0 );
- controls.minDistance = 7;
- controls.maxDistance = 40;
- controls.update();
- clock = new THREE.Clock();
- window.addEventListener( 'resize', resize );
- }
- function resize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate( time ) {
- const delta = clock.getDelta();
- torusKnot.rotation.x += 0.25 * delta;
- torusKnot.rotation.y += 0.5 * delta;
- torusKnot.rotation.z += 1 * delta;
- dirGroup.rotation.y += 0.7 * delta;
- dirLight.position.z = 17 + Math.sin( time * 0.001 ) * 5;
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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