midas
/
threejs-obj-space


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - VSM Shadows example </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="info">
		<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>
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import Stats from './jsm/libs/stats.module.js';
			import { GUI } from './jsm/libs/dat.gui.module.js';

			import { OrbitControls } from './jsm/controls/OrbitControls.js';

			var camera, scene, renderer, clock, stats;
			var dirLight, spotLight;
			var torusKnot, dirGroup;

			init();
			animate();

			function init() {

				initScene();
				initMisc();
				
				// Init gui
				var gui = new GUI();

				var config = {
					'Spotlight Radius': 4,
					'Directional light Radius': 4,
				};

				gui.add( config, 'Spotlight Radius' ).min( 2 ).max( 8 ).onChange( function ( value ) {

					spotLight.shadow.radius = value;

				} );

				gui.add( config, 'Directional light Radius' ).min( 2 ).max( 8 ).onChange( function ( value ) {

					dirLight.shadow.radius = value;

				} );

				document.body.appendChild( renderer.domElement );
				window.addEventListener( 'resize', onWindowResize, false );

			}

			function initScene() {

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.set( 0, 10, 30 );

				scene = new THREE.Scene();
				scene.fog = new THREE.Fog( 0xCCCCCC, 50, 100 );

				// Lights

				scene.add( new THREE.AmbientLight( 0x444444 ) );

				spotLight = new THREE.SpotLight( 0x888888 );
				spotLight.name = 'Spot Light';
				spotLight.angle = Math.PI / 5;
				spotLight.penumbra = 0.3;
				spotLight.position.set( 8, 10, 5 );
				spotLight.castShadow = true;
				spotLight.shadow.camera.near = 8;
				spotLight.shadow.camera.far = 200;
				spotLight.shadow.mapSize.width = 256;
				spotLight.shadow.mapSize.height = 256;
				spotLight.shadow.bias = -0.002;
				spotLight.shadow.radius = 4;
				scene.add( spotLight );


				dirLight = new THREE.DirectionalLight( 0xFFFFFF, 1 );
				dirLight.name = 'Dir. Light';
				dirLight.position.set( 3, 12, 17 );
				dirLight.castShadow = true;
				dirLight.shadow.camera.near = 0.1;
				dirLight.shadow.camera.far = 500;
				dirLight.shadow.camera.right = 17;
				dirLight.shadow.camera.left = - 17;
				dirLight.shadow.camera.top	= 17;
				dirLight.shadow.camera.bottom = - 17;
				dirLight.shadow.mapSize.width = 512;
				dirLight.shadow.mapSize.height = 512;
				dirLight.shadow.radius = 4;
				dirLight.shadow.bias = -0.0005;
				scene.add( dirLight );

				dirGroup = new THREE.Group();
				dirGroup.add( dirLight );
				scene.add( dirGroup );

				// Geometry

				var geometry = new THREE.TorusKnotBufferGeometry( 25, 8, 75, 20 );
				var material = new THREE.MeshPhongMaterial( {
					color: 0x999999,
					shininess: 0,
					specular: 0x222222
				} );

				torusKnot = new THREE.Mesh( geometry, material );
				torusKnot.scale.multiplyScalar( 1 / 18 );
				torusKnot.position.y = 3;
				torusKnot.castShadow = true;
				torusKnot.receiveShadow = true;
				scene.add( torusKnot );

				var geometry = new THREE.CylinderBufferGeometry( 0.75, 0.75, 7, 32 );

				var pillar1 = new THREE.Mesh( geometry, material );
				pillar1.position.set( 10, 3.5, 10 );
				pillar1.castShadow = true;
				pillar1.receiveShadow = true;

				var pillar2 = pillar1.clone();
				pillar2.position.set( 10, 3.5, -10 );
				var pillar3 = pillar1.clone();
				pillar3.position.set( -10, 3.5, 10 );
				var pillar4 = pillar1.clone();
				pillar4.position.set( -10, 3.5, -10 );

				scene.add( pillar1 );
				scene.add( pillar2 );
				scene.add( pillar3 );
				scene.add( pillar4 );

				var geometry = new THREE.PlaneBufferGeometry( 200, 200 );
				var material = new THREE.MeshPhongMaterial( {
					color: 0x999999,
					shininess: 0,
					specular: 0x111111
				} );

				var ground = new THREE.Mesh( geometry, material );
				ground.rotation.x = -Math.PI/2;
				ground.scale.multiplyScalar( 3 );
				ground.castShadow = true;
				ground.receiveShadow = true;
				scene.add( ground );

			}

			function initMisc() {

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.shadowMap.enabled = true;
				renderer.shadowMap.type = THREE.VSMShadowMap;		

				renderer.setClearColor( 0xCCCCCC, 1 );

				// Mouse control
				var controls = new OrbitControls( camera, renderer.domElement );
				controls.target.set( 0, 2, 0 );
				controls.update();

				clock = new THREE.Clock();

				stats = new Stats();
				document.body.appendChild( stats.dom );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				requestAnimationFrame( animate );
				render();

				stats.update();

			}

			function renderScene() {

				renderer.render( scene, camera );

			}

			function render() {

				var delta = clock.getDelta();
				var time = clock.elapsedTime;

				renderScene();

				torusKnot.rotation.x += 0.25 * delta;
				torusKnot.rotation.y += 2 * delta;
				torusKnot.rotation.z += 1 * delta;

				dirGroup.rotation.y += 0.7 * delta;
				dirLight.position.z = 17 + Math.sin(time*0.001)*5;

			}

		</script>
	</body>
</html>