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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 - sss</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="container"></div>
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+ <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a>
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+ <br/>Fast subsurface scattering<br/>
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+ [Thanks for the art support from <a href="https://github.com/shaochun" target="_blank" rel="noopener">Shaochun Lin</a>]
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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.module.js",
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+ "three/addons/": "./jsm/",
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+ "three/nodes": "./jsm/nodes/Nodes.js"
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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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+ import * as Nodes from 'three/nodes';
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+
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+ import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';
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+
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+ import Stats from 'three/addons/libs/stats.module.js';
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+
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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 { FBXLoader } from 'three/addons/loaders/FBXLoader.js';
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+
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+ let container, stats;
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+ let camera, scene, renderer;
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+ let model;
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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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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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+ camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 5000 );
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+ camera.position.set( 0.0, 300, 400 * 4 );
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+
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+ scene = new THREE.Scene();
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+
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+ // Lights
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+
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+ scene.add( new THREE.AmbientLight( 0xc1c1c1 ) );
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+
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+ const directionalLight = new THREE.DirectionalLight( 0xffffff, 0.03 );
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+ directionalLight.position.set( 0.0, 0.5, 0.5 ).normalize();
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+ scene.add( directionalLight );
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+
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+ const pointLight1 = new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xc1c1c1 } ) );
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+ pointLight1.add( new THREE.PointLight( 0xc1c1c1, 4.0, 300, 0 ) );
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+ scene.add( pointLight1 );
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+ pointLight1.position.x = 0;
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+ pointLight1.position.y = - 50;
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+ pointLight1.position.z = 350;
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+
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+ const pointLight2 = new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xc1c100 } ) );
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+ pointLight2.add( new THREE.PointLight( 0xc1c100, 0.75, 500, 0 ) );
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+ scene.add( pointLight2 );
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+ pointLight2.position.x = - 100;
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+ pointLight2.position.y = 20;
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+ pointLight2.position.z = - 260;
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+
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+ renderer = new 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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+ container.appendChild( renderer.domElement );
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+
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+ //
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+
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+ stats = new Stats();
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+ container.appendChild( stats.dom );
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+
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+ const controls = new OrbitControls( camera, container );
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+ controls.minDistance = 500;
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+ controls.maxDistance = 3000;
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ initMaterial();
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+
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+ }
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+
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+ function initMaterial() {
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+
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+ const loader = new THREE.TextureLoader();
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+ const imgTexture = loader.load( 'models/fbx/white.jpg' );
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+ imgTexture.colorSpace = THREE.SRGBColorSpace;
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+
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+ const thicknessTexture = loader.load( 'models/fbx/bunny_thickness.jpg' );
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+ imgTexture.wrapS = imgTexture.wrapT = THREE.RepeatWrapping;
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+
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+ const material = new Nodes.MeshSSSPhysicalNodeMaterial();
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+ material.color = new THREE.Color( 1.0, 0.2, 0.2 );
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+ material.roughness = 0.3;
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+ material.thicknessColorNode = Nodes.texture( thicknessTexture ).mul( Nodes.vec3( 0.5, 0.3, 0.0 ) );
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+ material.thicknessDistortionNode = Nodes.uniform( 0.1 );
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+ material.thicknessAmbientNode = Nodes.uniform( 0.4 );
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+ material.thicknessAttenuationNode = Nodes.uniform( 0.8 );
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+ material.thicknessPowerNode = Nodes.uniform( 2.0 );
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+ material.thicknessScaleNode = Nodes.uniform( 16.0 );
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+
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+ // LOADER
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+
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+ const loaderFBX = new FBXLoader();
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+ loaderFBX.load( 'models/fbx/stanford-bunny.fbx', function ( object ) {
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+
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+ model = object.children[ 0 ];
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+ model.position.set( 0, 0, 10 );
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+ model.scale.setScalar( 1 );
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+ model.material = material;
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+ scene.add( model );
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+
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+ } );
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+
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+ initGUI( material );
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+
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+ }
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+
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+ function initGUI( material ) {
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+
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+ const gui = new GUI( { title: 'Thickness Control' } );
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+
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+ const ThicknessControls = function () {
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+
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+ this.distortion = material.thicknessDistortionNode.value;
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+ this.ambient = material.thicknessAmbientNode.value;
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+ this.attenuation = material.thicknessAttenuationNode.value;
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+ this.power = material.thicknessPowerNode.value;
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+ this.scale = material.thicknessScaleNode.value;
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+
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+ };
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+
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+ const thicknessControls = new ThicknessControls();
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+
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+ gui.add( thicknessControls, 'distortion' ).min( 0.01 ).max( 1 ).step( 0.01 ).onChange( function () {
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+
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+ material.thicknessDistortionNode.value = thicknessControls.distortion;
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+ console.log( 'distortion' );
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+
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+ } );
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+
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+ gui.add( thicknessControls, 'ambient' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {
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+
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+ material.thicknessAmbientNode.value = thicknessControls.ambient;
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+
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+ } );
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+
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+ gui.add( thicknessControls, 'attenuation' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {
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+
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+ material.thicknessAttenuationNode.value = thicknessControls.attenuation;
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+
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+ } );
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+
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+ gui.add( thicknessControls, 'power' ).min( 0.01 ).max( 16.0 ).step( 0.1 ).onChange( function () {
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+
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+ material.thicknessPowerNode.value = thicknessControls.power;
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+
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+ } );
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+
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+ gui.add( thicknessControls, 'scale' ).min( 0.01 ).max( 50.0 ).step( 0.1 ).onChange( function () {
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+
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+ material.thicknessScaleNode.value = thicknessControls.scale;
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+
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+ } );
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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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+ //
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+
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+ function animate() {
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+
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+ render();
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+
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+ stats.update();
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+
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+ }
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+
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+ function render() {
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+
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+ if ( model ) model.rotation.y = performance.now() / 5000;
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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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+</html>
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sunag
