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186 lines
5.2 KiB
186 lines
5.2 KiB
3 years ago
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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 webgl - post processing - Scalable Ambient Occlusion (SAO)</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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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - Scalable Ambient Occlusion (SAO)<br/>
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shader by <a href="http://clara.io">Ben Houston</a> / Post-processing pass by <a href="http://ludobaka.github.io">Ludobaka</a>
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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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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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import Stats from 'three/addons/libs/stats.module.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
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import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
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import { SAOPass } from 'three/addons/postprocessing/SAOPass.js';
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let container, stats;
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let camera, scene, renderer;
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let composer, renderPass, saoPass;
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let group;
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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const width = window.innerWidth || 1;
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const height = window.innerHeight || 1;
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const devicePixelRatio = window.devicePixelRatio || 1;
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setClearColor( 0x000000 );
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renderer.setPixelRatio( devicePixelRatio );
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renderer.setSize( width, height );
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document.body.appendChild( renderer.domElement );
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camera = new THREE.PerspectiveCamera( 65, width / height, 3, 10 );
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camera.position.z = 7;
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scene = new THREE.Scene();
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group = new THREE.Object3D();
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scene.add( group );
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const light = new THREE.PointLight( 0xddffdd, 0.8 );
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light.position.z = 70;
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light.position.y = - 70;
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light.position.x = - 70;
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scene.add( light );
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const light2 = new THREE.PointLight( 0xffdddd, 0.8 );
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light2.position.z = 70;
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light2.position.x = - 70;
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light2.position.y = 70;
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scene.add( light2 );
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const light3 = new THREE.PointLight( 0xddddff, 0.8 );
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light3.position.z = 70;
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light3.position.x = 70;
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light3.position.y = - 70;
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scene.add( light3 );
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const light4 = new THREE.AmbientLight( 0xffffff, 0.05 );
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scene.add( light4 );
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const geometry = new THREE.SphereGeometry( 3, 48, 24 );
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for ( let i = 0; i < 120; i ++ ) {
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const material = new THREE.MeshStandardMaterial();
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material.roughness = 0.5 * Math.random() + 0.25;
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material.metalness = 0;
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material.color.setHSL( Math.random(), 1.0, 0.3 );
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = Math.random() * 4 - 2;
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mesh.position.y = Math.random() * 4 - 2;
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mesh.position.z = Math.random() * 4 - 2;
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mesh.rotation.x = Math.random();
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mesh.rotation.y = Math.random();
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mesh.rotation.z = Math.random();
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mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 0.2 + 0.05;
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group.add( mesh );
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}
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stats = new Stats();
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container.appendChild( stats.dom );
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composer = new EffectComposer( renderer );
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renderPass = new RenderPass( scene, camera );
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composer.addPass( renderPass );
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saoPass = new SAOPass( scene, camera, false, true );
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composer.addPass( saoPass );
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// Init gui
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const gui = new GUI();
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gui.add( saoPass.params, 'output', {
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'Beauty': SAOPass.OUTPUT.Beauty,
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'Beauty+SAO': SAOPass.OUTPUT.Default,
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'SAO': SAOPass.OUTPUT.SAO,
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'Depth': SAOPass.OUTPUT.Depth,
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'Normal': SAOPass.OUTPUT.Normal
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} ).onChange( function ( value ) {
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saoPass.params.output = parseInt( value );
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} );
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gui.add( saoPass.params, 'saoBias', - 1, 1 );
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gui.add( saoPass.params, 'saoIntensity', 0, 1 );
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gui.add( saoPass.params, 'saoScale', 0, 10 );
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gui.add( saoPass.params, 'saoKernelRadius', 1, 100 );
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gui.add( saoPass.params, 'saoMinResolution', 0, 1 );
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gui.add( saoPass.params, 'saoBlur' );
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gui.add( saoPass.params, 'saoBlurRadius', 0, 200 );
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gui.add( saoPass.params, 'saoBlurStdDev', 0.5, 150 );
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gui.add( saoPass.params, 'saoBlurDepthCutoff', 0.0, 0.1 );
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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const width = window.innerWidth || 1;
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const height = window.innerHeight || 1;
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camera.aspect = width / height;
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camera.updateProjectionMatrix();
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renderer.setSize( width, height );
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composer.setSize( width, height );
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}
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function animate() {
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requestAnimationFrame( animate );
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stats.begin();
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render();
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stats.end();
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}
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function render() {
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const timer = performance.now();
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group.rotation.x = timer * 0.0002;
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group.rotation.y = timer * 0.0001;
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composer.render();
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}
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</script>
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</body>
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</html>
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