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123 lines
3.3 KiB
123 lines
3.3 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 - postprocessing</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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<!-- 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 { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
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import { RGBShiftShader } from 'three/addons/shaders/RGBShiftShader.js';
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import { DotScreenShader } from 'three/addons/shaders/DotScreenShader.js';
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let camera, renderer, composer;
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let object;
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init();
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animate();
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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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const 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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const material = new THREE.MeshPhongMaterial( { color: 0xffffff, flatShading: true } );
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for ( let i = 0; i < 100; i ++ ) {
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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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const 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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const effect1 = new ShaderPass( DotScreenShader );
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effect1.uniforms[ 'scale' ].value = 4;
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composer.addPass( effect1 );
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const effect2 = new ShaderPass( RGBShiftShader );
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effect2.uniforms[ 'amount' ].value = 0.0015;
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composer.addPass( effect2 );
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//
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window.addEventListener( 'resize', onWindowResize );
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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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