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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgpu - phong lighting model</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 - phong lighting model<br />
- <b style="color:red">Left: Red lights</b> - <b>Center: All lights</b> - <b style="color:blue">Right: blue light</b>
- </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 { color, rangeFog, checker, uv, mix, texture, lights, normalMap } from 'three/tsl';
- import Stats from 'three/addons/libs/stats.module.js';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { TeapotGeometry } from 'three/addons/geometries/TeapotGeometry.js';
- let camera, scene, renderer,
- light1, light2, light3, light4,
- stats, controls;
- init();
- function init() {
- camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.01, 100 );
- camera.position.z = 7;
- scene = new THREE.Scene();
- scene.fogNode = rangeFog( color( 0xFF00FF ), 12, 30 );
- const sphereGeometry = new THREE.SphereGeometry( 0.1, 16, 8 );
- // textures
- const textureLoader = new THREE.TextureLoader();
- const normalMapTexture = textureLoader.load( './textures/water/Water_1_M_Normal.jpg' );
- normalMapTexture.wrapS = THREE.RepeatWrapping;
- normalMapTexture.wrapT = THREE.RepeatWrapping;
- const alphaTexture = textureLoader.load( './textures/roughness_map.jpg' );
- alphaTexture.wrapS = THREE.RepeatWrapping;
- alphaTexture.wrapT = THREE.RepeatWrapping;
- // lights
- const addLight = ( hexColor, power = 1700, distance = 100 ) => {
- const material = new THREE.MeshPhongNodeMaterial();
- material.colorNode = color( hexColor );
- material.lights = false;
- const mesh = new THREE.Mesh( sphereGeometry, material );
- const light = new THREE.PointLight( hexColor, 1, distance );
- light.power = power;
- light.add( mesh );
- scene.add( light );
- return light;
- };
- light1 = addLight( 0x0040ff );
- light2 = addLight( 0xffffff );
- light3 = addLight( 0x80ff80 );
- light4 = addLight( 0xffaa00 );
- // light nodes ( selective lights )
- const blueLightsNode = lights( [ light1 ] );
- const whiteLightsNode = lights( [ light2 ] );
- // models
- const geometryTeapot = new TeapotGeometry( .8, 18 );
- const leftObject = new THREE.Mesh( geometryTeapot, new THREE.MeshPhongNodeMaterial( { color: 0x555555 } ) );
- leftObject.material.lightsNode = blueLightsNode;
- leftObject.material.specularNode = texture( alphaTexture );
- leftObject.position.x = - 3;
- scene.add( leftObject );
- const centerObject = new THREE.Mesh( geometryTeapot, new THREE.MeshPhongNodeMaterial( { color: 0x555555 } ) );
- centerObject.material.normalNode = normalMap( texture( normalMapTexture ) );
- centerObject.material.shininess = 80;
- scene.add( centerObject );
- const rightObject = new THREE.Mesh( geometryTeapot, new THREE.MeshPhongNodeMaterial( { color: 0x555555 } ) );
- rightObject.material.lightsNode = whiteLightsNode;
- //rightObject.material.specular.setHex( 0xFF00FF );
- rightObject.material.specularNode = mix( color( 0x0000FF ), color( 0xFF0000 ), checker( uv().mul( 5 ) ) );
- rightObject.material.shininess = 90;
- rightObject.position.x = 3;
- scene.add( rightObject );
- leftObject.rotation.y = centerObject.rotation.y = rightObject.rotation.y = Math.PI * - 0.5;
- leftObject.position.y = centerObject.position.y = rightObject.position.y = - 1;
- // 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 );
- // controls
- controls = new OrbitControls( camera, renderer.domElement );
- controls.minDistance = 3;
- controls.maxDistance = 25;
- // stats
- stats = new Stats();
- document.body.appendChild( stats.dom );
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate() {
- const time = performance.now() / 1000;
- const lightTime = time * 0.5;
- light1.position.x = Math.sin( lightTime * 0.7 ) * 3;
- light1.position.y = Math.cos( lightTime * 0.5 ) * 4;
- light1.position.z = Math.cos( lightTime * 0.3 ) * 3;
- light2.position.x = Math.cos( lightTime * 0.3 ) * 3;
- light2.position.y = Math.sin( lightTime * 0.5 ) * 4;
- light2.position.z = Math.sin( lightTime * 0.7 ) * 3;
- light3.position.x = Math.sin( lightTime * 0.7 ) * 3;
- light3.position.y = Math.cos( lightTime * 0.3 ) * 4;
- light3.position.z = Math.sin( lightTime * 0.5 ) * 3;
- light4.position.x = Math.sin( lightTime * 0.3 ) * 3;
- light4.position.y = Math.cos( lightTime * 0.7 ) * 4;
- light4.position.z = Math.sin( lightTime * 0.5 ) * 3;
- renderer.render( scene, camera );
- stats.update();
- }
- </script>
- </body>
- </html>
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