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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - postprocessing - digital glitch</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="overlay">
- <h2>WARNING</h2>
- <p style="text-align: center; max-width:450px; margin-bottom:40px;">
- This example may potentially trigger seizures for people with <strong>photosensitive epilepsy</strong>.
- </p>
- <button id="startButton">Okay</button>
- </div>
- <div id="info">
- <label for="dotScreen">Glitch me wild:</label><input id="wildGlitch" type="checkbox"/><br />
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
- import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
- import { GlitchPass } from 'three/addons/postprocessing/GlitchPass.js';
- import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';
- let camera, scene, renderer, composer;
- let object, light;
- let glitchPass;
- const button = document.querySelector( '#startButton' );
- button.addEventListener( 'click', function () {
- const overlay = document.getElementById( 'overlay' );
- overlay.remove();
- init();
- } );
- function updateOptions() {
- const wildGlitch = document.getElementById( 'wildGlitch' );
- glitchPass.goWild = wildGlitch.checked;
- }
- function init() {
- renderer = new THREE.WebGLRenderer();
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- document.body.appendChild( renderer.domElement );
- //
- camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
- camera.position.z = 400;
- scene = new THREE.Scene();
- scene.fog = new THREE.Fog( 0x000000, 1, 1000 );
- object = new THREE.Object3D();
- scene.add( object );
- const geometry = new THREE.SphereGeometry( 1, 4, 4 );
- for ( let i = 0; i < 100; i ++ ) {
- const material = new THREE.MeshPhongMaterial( { color: 0xffffff * Math.random(), flatShading: true } );
- const mesh = new THREE.Mesh( geometry, material );
- mesh.position.set( Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5 ).normalize();
- mesh.position.multiplyScalar( Math.random() * 400 );
- mesh.rotation.set( Math.random() * 2, Math.random() * 2, Math.random() * 2 );
- mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50;
- object.add( mesh );
- }
- scene.add( new THREE.AmbientLight( 0xcccccc ) );
- light = new THREE.DirectionalLight( 0xffffff, 3 );
- light.position.set( 1, 1, 1 );
- scene.add( light );
- // postprocessing
- composer = new EffectComposer( renderer );
- composer.addPass( new RenderPass( scene, camera ) );
- glitchPass = new GlitchPass();
- composer.addPass( glitchPass );
- const outputPass = new OutputPass();
- composer.addPass( outputPass );
- //
- window.addEventListener( 'resize', onWindowResize );
- const wildGlitchOption = document.getElementById( 'wildGlitch' );
- wildGlitchOption.addEventListener( 'change', updateOptions );
- updateOptions();
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- composer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate() {
- object.rotation.x += 0.005;
- object.rotation.y += 0.01;
- composer.render();
- }
- </script>
- </body>
- </html>
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