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238 lines
6.3 KiB
238 lines
6.3 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 - VSM Shadows example </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">three.js</a> - VSM Shadows example by <a href="https://github.com/supereggbert">Paul Brunt</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 { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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let camera, scene, renderer, clock, stats;
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let dirLight, spotLight;
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let torusKnot, dirGroup;
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init();
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animate();
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function init() {
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initScene();
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initMisc();
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// Init gui
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const gui = new GUI();
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const config = {
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spotlightRadius: 4,
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spotlightSamples: 8,
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dirlightRadius: 4,
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dirlightSamples: 8
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};
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const spotlightFolder = gui.addFolder( 'Spotlight' );
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spotlightFolder.add( config, 'spotlightRadius' ).name( 'radius' ).min( 0 ).max( 25 ).onChange( function ( value ) {
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spotLight.shadow.radius = value;
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} );
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spotlightFolder.add( config, 'spotlightSamples', 1, 25, 1 ).name( 'samples' ).onChange( function ( value ) {
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spotLight.shadow.blurSamples = value;
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} );
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spotlightFolder.open();
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const dirlightFolder = gui.addFolder( 'Directional Light' );
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dirlightFolder.add( config, 'dirlightRadius' ).name( 'radius' ).min( 0 ).max( 25 ).onChange( function ( value ) {
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dirLight.shadow.radius = value;
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} );
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dirlightFolder.add( config, 'dirlightSamples', 1, 25, 1 ).name( 'samples' ).onChange( function ( value ) {
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dirLight.shadow.blurSamples = value;
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} );
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dirlightFolder.open();
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document.body.appendChild( renderer.domElement );
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window.addEventListener( 'resize', onWindowResize );
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}
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function initScene() {
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.set( 0, 10, 30 );
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scene = new THREE.Scene();
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scene.background = new THREE.Color( 0x222244 );
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scene.fog = new THREE.Fog( 0x222244, 50, 100 );
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// Lights
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scene.add( new THREE.AmbientLight( 0x444444 ) );
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spotLight = new THREE.SpotLight( 0xff8888 );
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spotLight.angle = Math.PI / 5;
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spotLight.penumbra = 0.3;
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spotLight.position.set( 8, 10, 5 );
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spotLight.castShadow = true;
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spotLight.shadow.camera.near = 8;
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spotLight.shadow.camera.far = 200;
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spotLight.shadow.mapSize.width = 256;
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spotLight.shadow.mapSize.height = 256;
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spotLight.shadow.bias = - 0.002;
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spotLight.shadow.radius = 4;
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scene.add( spotLight );
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dirLight = new THREE.DirectionalLight( 0x8888ff );
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dirLight.position.set( 3, 12, 17 );
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dirLight.castShadow = true;
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dirLight.shadow.camera.near = 0.1;
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dirLight.shadow.camera.far = 500;
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dirLight.shadow.camera.right = 17;
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dirLight.shadow.camera.left = - 17;
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dirLight.shadow.camera.top = 17;
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dirLight.shadow.camera.bottom = - 17;
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dirLight.shadow.mapSize.width = 512;
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dirLight.shadow.mapSize.height = 512;
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dirLight.shadow.radius = 4;
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dirLight.shadow.bias = - 0.0005;
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dirGroup = new THREE.Group();
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dirGroup.add( dirLight );
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scene.add( dirGroup );
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// Geometry
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const geometry = new THREE.TorusKnotGeometry( 25, 8, 75, 20 );
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const material = new THREE.MeshPhongMaterial( {
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color: 0x999999,
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shininess: 0,
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specular: 0x222222
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} );
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torusKnot = new THREE.Mesh( geometry, material );
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torusKnot.scale.multiplyScalar( 1 / 18 );
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torusKnot.position.y = 3;
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torusKnot.castShadow = true;
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torusKnot.receiveShadow = true;
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scene.add( torusKnot );
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const cylinderGeometry = new THREE.CylinderGeometry( 0.75, 0.75, 7, 32 );
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const pillar1 = new THREE.Mesh( cylinderGeometry, material );
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pillar1.position.set( 8, 3.5, 8 );
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pillar1.castShadow = true;
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pillar1.receiveShadow = true;
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const pillar2 = pillar1.clone();
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pillar2.position.set( 8, 3.5, - 8 );
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const pillar3 = pillar1.clone();
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pillar3.position.set( - 8, 3.5, 8 );
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const pillar4 = pillar1.clone();
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pillar4.position.set( - 8, 3.5, - 8 );
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scene.add( pillar1 );
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scene.add( pillar2 );
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scene.add( pillar3 );
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scene.add( pillar4 );
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const planeGeometry = new THREE.PlaneGeometry( 200, 200 );
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const planeMaterial = new THREE.MeshPhongMaterial( {
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color: 0x999999,
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shininess: 0,
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specular: 0x111111
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} );
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const ground = new THREE.Mesh( planeGeometry, planeMaterial );
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ground.rotation.x = - Math.PI / 2;
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ground.scale.multiplyScalar( 3 );
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ground.castShadow = true;
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ground.receiveShadow = true;
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scene.add( ground );
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}
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function initMisc() {
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.shadowMap.enabled = true;
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renderer.shadowMap.type = THREE.VSMShadowMap;
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// Mouse control
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.target.set( 0, 2, 0 );
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controls.update();
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clock = new THREE.Clock();
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stats = new Stats();
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document.body.appendChild( stats.dom );
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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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}
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function animate( time ) {
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requestAnimationFrame( animate );
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const delta = clock.getDelta();
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torusKnot.rotation.x += 0.25 * delta;
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torusKnot.rotation.y += 0.5 * delta;
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torusKnot.rotation.z += 1 * delta;
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dirGroup.rotation.y += 0.7 * delta;
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dirLight.position.z = 17 + Math.sin( time * 0.001 ) * 5;
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renderer.render( scene, camera );
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stats.update();
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}
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</script>
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</body>
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</html>
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