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151 lines
3.9 KiB
151 lines
3.9 KiB
2 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 - postprocessing - digital glitch</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="overlay">
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<h2>WARNING</h2>
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<p style="text-align: center; max-width:450px; margin-bottom:40px;">
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This example may potentially trigger seizures for people with <strong>photosensitive epilepsy</strong>.
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</p>
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<button id="startButton">Okay</button>
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</div>
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<div id="info">
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<label for="dotScreen">Glitch me wild:</label><input id="wildGlitch" type="checkbox"/><br />
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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 { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
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import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
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import { GlitchPass } from 'three/addons/postprocessing/GlitchPass.js';
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let camera, scene, renderer, composer;
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let object, light;
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let glitchPass;
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const button = document.querySelector( '#startButton' );
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button.addEventListener( 'click', function () {
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const overlay = document.getElementById( 'overlay' );
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overlay.remove();
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init();
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animate();
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} );
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function updateOptions() {
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const wildGlitch = document.getElementById( 'wildGlitch' );
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glitchPass.goWild = wildGlitch.checked;
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}
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function init() {
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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//
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.z = 400;
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scene = new THREE.Scene();
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scene.fog = new THREE.Fog( 0x000000, 1, 1000 );
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object = new THREE.Object3D();
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scene.add( object );
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const geometry = new THREE.SphereGeometry( 1, 4, 4 );
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for ( let i = 0; i < 100; i ++ ) {
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const material = new THREE.MeshPhongMaterial( { color: 0xffffff * Math.random(), flatShading: true } );
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.set( Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5 ).normalize();
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mesh.position.multiplyScalar( Math.random() * 400 );
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mesh.rotation.set( Math.random() * 2, Math.random() * 2, Math.random() * 2 );
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mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50;
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object.add( mesh );
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}
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scene.add( new THREE.AmbientLight( 0x222222 ) );
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light = new THREE.DirectionalLight( 0xffffff );
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light.position.set( 1, 1, 1 );
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scene.add( light );
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// postprocessing
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composer = new EffectComposer( renderer );
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composer.addPass( new RenderPass( scene, camera ) );
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glitchPass = new GlitchPass();
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composer.addPass( glitchPass );
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//
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window.addEventListener( 'resize', onWindowResize );
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const wildGlitchOption = document.getElementById( 'wildGlitch' );
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wildGlitchOption.addEventListener( 'change', updateOptions );
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updateOptions();
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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composer.setSize( window.innerWidth, window.innerHeight );
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}
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function animate() {
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requestAnimationFrame( animate );
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object.rotation.x += 0.005;
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object.rotation.y += 0.01;
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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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