javascript
/
three.js
spegling av https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgpu - sss</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="container"></div>
		<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a>
			<br/>Fast subsurface scattering<br/>
			[Thanks for the art support from <a href="https://github.com/shaochun" target="_blank" rel="noopener">Shaochun Lin</a>]
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/",
					"three/nodes": "./jsm/nodes/Nodes.js"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';
			import * as Nodes from 'three/nodes';

			import WebGPURenderer from 'three/addons/renderers/webgpu/WebGPURenderer.js';

			import Stats from 'three/addons/libs/stats.module.js';

			import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
			import { FBXLoader } from 'three/addons/loaders/FBXLoader.js';

			let container, stats;
			let camera, scene, renderer;
			let model;

			init();

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 5000 );
				camera.position.set( 0.0, 300, 400 * 4 );

				scene = new THREE.Scene();

				// Lights

				scene.add( new THREE.AmbientLight( 0xc1c1c1 ) );

				const directionalLight = new THREE.DirectionalLight( 0xffffff, 0.03 );
				directionalLight.position.set( 0.0, 0.5, 0.5 ).normalize();
				scene.add( directionalLight );

				const pointLight1 = new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xc1c1c1 } ) );
				pointLight1.add( new THREE.PointLight( 0xc1c1c1, 4.0, 300, 0 ) );
				scene.add( pointLight1 );
				pointLight1.position.x = 0;
				pointLight1.position.y = - 50;
				pointLight1.position.z = 350;

				const pointLight2 = new THREE.Mesh( new THREE.SphereGeometry( 4, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0xc1c100 } ) );
				pointLight2.add( new THREE.PointLight( 0xc1c100, 0.75, 500, 0 ) );
				scene.add( pointLight2 );
				pointLight2.position.x = - 100;
				pointLight2.position.y = 20;
				pointLight2.position.z = - 260;

				renderer = new WebGPURenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				container.appendChild( renderer.domElement );

				//

				stats = new Stats();
				container.appendChild( stats.dom );

				const controls = new OrbitControls( camera, container );
				controls.minDistance = 500;
				controls.maxDistance = 3000;

				window.addEventListener( 'resize', onWindowResize );

				initMaterial();

			}

			function initMaterial() {

				const loader = new THREE.TextureLoader();
				const imgTexture = loader.load( 'models/fbx/white.jpg' );
				imgTexture.colorSpace = THREE.SRGBColorSpace;

				const thicknessTexture = loader.load( 'models/fbx/bunny_thickness.jpg' );
				imgTexture.wrapS = imgTexture.wrapT = THREE.RepeatWrapping;

				const material = new Nodes.MeshSSSNodeMaterial();
				material.color = new THREE.Color( 1.0, 0.2, 0.2 );
				material.roughness = 0.3;
				material.thicknessColorNode = Nodes.texture( thicknessTexture ).mul( Nodes.vec3( 0.5, 0.3, 0.0 ) );
				material.thicknessDistortionNode = Nodes.uniform( 0.1 );
				material.thicknessAmbientNode = Nodes.uniform( 0.4 );
				material.thicknessAttenuationNode = Nodes.uniform( 0.8 );
				material.thicknessPowerNode = Nodes.uniform( 2.0 );
				material.thicknessScaleNode = Nodes.uniform( 16.0 );

				// LOADER

				const loaderFBX = new FBXLoader();
				loaderFBX.load( 'models/fbx/stanford-bunny.fbx', function ( object ) {

					model = object.children[ 0 ];
					model.position.set( 0, 0, 10 );
					model.scale.setScalar( 1 );
					model.material = material;
					scene.add( model );

				} );

				initGUI( material );

			}

			function initGUI( material ) {

				const gui = new GUI( { title: 'Thickness Control' } );

				const ThicknessControls = function () {

					this.distortion = material.thicknessDistortionNode.value;
					this.ambient = material.thicknessAmbientNode.value;
					this.attenuation = material.thicknessAttenuationNode.value;
					this.power = material.thicknessPowerNode.value;
					this.scale = material.thicknessScaleNode.value;

				};

				const thicknessControls = new ThicknessControls();

				gui.add( thicknessControls, 'distortion' ).min( 0.01 ).max( 1 ).step( 0.01 ).onChange( function () {

					material.thicknessDistortionNode.value = thicknessControls.distortion;
					console.log( 'distortion' );

				} );

				gui.add( thicknessControls, 'ambient' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {

					material.thicknessAmbientNode.value = thicknessControls.ambient;

				} );

				gui.add( thicknessControls, 'attenuation' ).min( 0.01 ).max( 5.0 ).step( 0.05 ).onChange( function () {

					material.thicknessAttenuationNode.value = thicknessControls.attenuation;

				} );

				gui.add( thicknessControls, 'power' ).min( 0.01 ).max( 16.0 ).step( 0.1 ).onChange( function () {

					material.thicknessPowerNode.value = thicknessControls.power;

				} );

				gui.add( thicknessControls, 'scale' ).min( 0.01 ).max( 50.0 ).step( 0.1 ).onChange( function () {

					material.thicknessScaleNode.value = thicknessControls.scale;

				} );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			//

			function animate() {

				render();

				stats.update();

			}

			function render() {

				if ( model ) model.rotation.y = performance.now() / 5000;

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>