123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321 |
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - cascaded shadow maps</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="container"></div>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - cascaded shadow maps<br>
- by <a href="https://github.com/strandedkitty/" target="_blank" rel="noopener">StrandedKitty</a> (<a href="https://github.com/strandedkitty/three-csm" target="_blank" rel="noopener">original repository</a>)
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- import { CSM } from 'three/addons/csm/CSM.js';
- import { CSMHelper } from 'three/addons/csm/CSMHelper.js';
- let renderer, scene, camera, orthoCamera, controls, csm, csmHelper;
- const params = {
- orthographic: false,
- fade: false,
- shadows: true,
- far: 1000,
- mode: 'practical',
- lightX: - 1,
- lightY: - 1,
- lightZ: - 1,
- margin: 100,
- lightFar: 5000,
- lightNear: 1,
- autoUpdateHelper: true,
- updateHelper: function () {
- csmHelper.update();
- }
- };
- init();
- function updateOrthoCamera() {
- const size = controls.target.distanceTo( camera.position );
- const aspect = camera.aspect;
- orthoCamera.left = size * aspect / - 2;
- orthoCamera.right = size * aspect / 2;
- orthoCamera.top = size / 2;
- orthoCamera.bottom = size / - 2;
- orthoCamera.position.copy( camera.position );
- orthoCamera.rotation.copy( camera.rotation );
- orthoCamera.updateProjectionMatrix();
- }
- function init() {
- scene = new THREE.Scene();
- scene.background = new THREE.Color( '#454e61' );
- camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 5000 );
- orthoCamera = new THREE.OrthographicCamera();
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- document.body.appendChild( renderer.domElement );
- renderer.shadowMap.enabled = params.shadows;
- renderer.shadowMap.type = THREE.PCFSoftShadowMap;
- controls = new OrbitControls( camera, renderer.domElement );
- controls.maxPolarAngle = Math.PI / 2;
- camera.position.set( 60, 60, 0 );
- controls.target = new THREE.Vector3( - 100, 10, 0 );
- controls.update();
- const ambientLight = new THREE.AmbientLight( 0xffffff, 1.5 );
- scene.add( ambientLight );
- const additionalDirectionalLight = new THREE.DirectionalLight( 0x000020, 1.5 );
- additionalDirectionalLight.position.set( params.lightX, params.lightY, params.lightZ ).normalize().multiplyScalar( - 200 );
- scene.add( additionalDirectionalLight );
- csm = new CSM( {
- maxFar: params.far,
- cascades: 4,
- mode: params.mode,
- parent: scene,
- shadowMapSize: 1024,
- lightDirection: new THREE.Vector3( params.lightX, params.lightY, params.lightZ ).normalize(),
- camera: camera
- } );
- csmHelper = new CSMHelper( csm );
- csmHelper.visible = false;
- scene.add( csmHelper );
- const floorMaterial = new THREE.MeshPhongMaterial( { color: '#252a34' } );
- csm.setupMaterial( floorMaterial );
- const floor = new THREE.Mesh( new THREE.PlaneGeometry( 10000, 10000, 8, 8 ), floorMaterial );
- floor.rotation.x = - Math.PI / 2;
- floor.castShadow = true;
- floor.receiveShadow = true;
- scene.add( floor );
- const material1 = new THREE.MeshPhongMaterial( { color: '#08d9d6' } );
- csm.setupMaterial( material1 );
- const material2 = new THREE.MeshPhongMaterial( { color: '#ff2e63' } );
- csm.setupMaterial( material2 );
- const geometry = new THREE.BoxGeometry( 10, 10, 10 );
- for ( let i = 0; i < 40; i ++ ) {
- const cube1 = new THREE.Mesh( geometry, i % 2 === 0 ? material1 : material2 );
- cube1.castShadow = true;
- cube1.receiveShadow = true;
- scene.add( cube1 );
- cube1.position.set( - i * 25, 20, 30 );
- cube1.scale.y = Math.random() * 2 + 6;
- const cube2 = new THREE.Mesh( geometry, i % 2 === 0 ? material2 : material1 );
- cube2.castShadow = true;
- cube2.receiveShadow = true;
- scene.add( cube2 );
- cube2.position.set( - i * 25, 20, - 30 );
- cube2.scale.y = Math.random() * 2 + 6;
- }
- const gui = new GUI();
- gui.add( params, 'orthographic' ).onChange( function ( value ) {
- csm.camera = value ? orthoCamera : camera;
- csm.updateFrustums();
- } );
- gui.add( params, 'fade' ).onChange( function ( value ) {
- csm.fade = value;
- csm.updateFrustums();
- } );
- gui.add( params, 'shadows' ).onChange( function ( value ) {
- renderer.shadowMap.enabled = value;
- scene.traverse( function ( child ) {
- if ( child.material ) {
- child.material.needsUpdate = true;
- }
- } );
- } );
- gui.add( params, 'far', 1, 5000 ).step( 1 ).name( 'shadow far' ).onChange( function ( value ) {
- csm.maxFar = value;
- csm.updateFrustums();
- } );
- gui.add( params, 'mode', [ 'uniform', 'logarithmic', 'practical' ] ).name( 'frustum split mode' ).onChange( function ( value ) {
- csm.mode = value;
- csm.updateFrustums();
- } );
- gui.add( params, 'lightX', - 1, 1 ).name( 'light direction x' ).onChange( function ( value ) {
- csm.lightDirection.x = value;
- } );
- gui.add( params, 'lightY', - 1, 1 ).name( 'light direction y' ).onChange( function ( value ) {
- csm.lightDirection.y = value;
- } );
- gui.add( params, 'lightZ', - 1, 1 ).name( 'light direction z' ).onChange( function ( value ) {
- csm.lightDirection.z = value;
- } );
- gui.add( params, 'margin', 0, 200 ).name( 'light margin' ).onChange( function ( value ) {
- csm.lightMargin = value;
- } );
- gui.add( params, 'lightNear', 1, 10000 ).name( 'light near' ).onChange( function ( value ) {
- for ( let i = 0; i < csm.lights.length; i ++ ) {
- csm.lights[ i ].shadow.camera.near = value;
- csm.lights[ i ].shadow.camera.updateProjectionMatrix();
- }
- } );
- gui.add( params, 'lightFar', 1, 10000 ).name( 'light far' ).onChange( function ( value ) {
- for ( let i = 0; i < csm.lights.length; i ++ ) {
- csm.lights[ i ].shadow.camera.far = value;
- csm.lights[ i ].shadow.camera.updateProjectionMatrix();
- }
- } );
- const helperFolder = gui.addFolder( 'helper' );
- helperFolder.add( csmHelper, 'visible' );
- helperFolder.add( csmHelper, 'displayFrustum' ).onChange( function () {
- csmHelper.updateVisibility();
- } );
- helperFolder.add( csmHelper, 'displayPlanes' ).onChange( function () {
- csmHelper.updateVisibility();
- } );
- helperFolder.add( csmHelper, 'displayShadowBounds' ).onChange( function () {
- csmHelper.updateVisibility();
- } );
- helperFolder.add( params, 'autoUpdateHelper' ).name( 'auto update' );
- helperFolder.add( params, 'updateHelper' ).name( 'update' );
- helperFolder.open();
- window.addEventListener( 'resize', function () {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- updateOrthoCamera();
- csm.updateFrustums();
- renderer.setSize( window.innerWidth, window.innerHeight );
- } );
- }
- function animate() {
- camera.updateMatrixWorld();
- csm.update();
- controls.update();
- if ( params.orthographic ) {
- updateOrthoCamera();
- csm.updateFrustums();
- if ( params.autoUpdateHelper ) {
- csmHelper.update();
- }
- renderer.render( scene, orthoCamera );
- } else {
- if ( params.autoUpdateHelper ) {
- csmHelper.update();
- }
- renderer.render( scene, camera );
- }
- }
- </script>
- </body>
- </html>
|