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webgl_lights_pointlights2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - lights - point lights</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
background-color: #000;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
color: #ffffff;
padding: 5px;
font-family: Monospace;
font-size: 13px;
text-align: center;
}
a {
color: #ff0080;
text-decoration: none;
}
a:hover {
color: #0080ff;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - point lights WebGL demo
</div>
<script src="../build/three.js"></script>
<script src="js/controls/TrackballControls.js"></script>
<script src="js/WebGL.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
if ( WEBGL.isWebGLAvailable() === false ) {
document.body.appendChild( WEBGL.getWebGLErrorMessage() );
}
var camera, scene, renderer, controls;
var light1, light2, light3, light4, light5, light6;
var clock = new THREE.Clock();
var stats;
init();
animate();
function init() {
var container = document.getElementById( 'container' );
// CAMERA
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 300 );
camera.position.set( 0, 15, 150 );
camera.lookAt( 0, 0, 0 );
// SCENE
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x040306 );
scene.fog = new THREE.Fog( 0x040306, 10, 300 );
// CONTROLS
controls = new THREE.TrackballControls( camera );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = false;
controls.dynamicDampingFactor = 0.15;
controls.keys = [ 65, 83, 68 ];
// TEXTURES
var textureLoader = new THREE.TextureLoader();
var texture = textureLoader.load( "textures/disturb.jpg" );
texture.repeat.set( 20, 10 );
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.format = THREE.RGBFormat;
// MATERIALS
var groundMaterial = new THREE.MeshPhongMaterial( { color: 0xffffff, map: texture } );
var objectMaterial = new THREE.MeshStandardMaterial( { color: 0xffffff, roughness: 0.5, metalness: 1.0 } );
// GROUND
var mesh = new THREE.Mesh( new THREE.PlaneBufferGeometry( 800, 400, 2, 2 ), groundMaterial );
mesh.position.y = - 5;
mesh.rotation.x = - Math.PI / 2;
scene.add( mesh );
// OBJECTS
var objectGeometry = new THREE.TorusBufferGeometry( 1.5, 0.4, 8, 16 );
for ( var i = 0; i < 5000; i ++ ) {
var mesh = new THREE.Mesh( objectGeometry, objectMaterial );
mesh.position.x = 400 * ( 0.5 - Math.random() );
mesh.position.y = 50 * ( 0.5 - Math.random() ) + 25;
mesh.position.z = 200 * ( 0.5 - Math.random() );
mesh.rotation.y = 3.14 * ( 0.5 - Math.random() );
mesh.rotation.x = 3.14 * ( 0.5 - Math.random() );
mesh.matrixAutoUpdate = false;
mesh.updateMatrix();
scene.add( mesh );
}
// LIGHTS
var intensity = 2.5;
var distance = 100;
var decay = 2.0;
var c1 = 0xff0040, c2 = 0x0040ff, c3 = 0x80ff80, c4 = 0xffaa00, c5 = 0x00ffaa, c6 = 0xff1100;
var sphere = new THREE.SphereBufferGeometry( 0.25, 16, 8 );
light1 = new THREE.PointLight( c1, intensity, distance, decay );
light1.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c1 } ) ) );
scene.add( light1 );
light2 = new THREE.PointLight( c2, intensity, distance, decay );
light2.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c2 } ) ) );
scene.add( light2 );
light3 = new THREE.PointLight( c3, intensity, distance, decay );
light3.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c3 } ) ) );
scene.add( light3 );
light4 = new THREE.PointLight( c4, intensity, distance, decay );
light4.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c4 } ) ) );
scene.add( light4 );
light5 = new THREE.PointLight( c5, intensity, distance, decay );
light5.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c5 } ) ) );
scene.add( light5 );
light6 = new THREE.PointLight( c6, intensity, distance, decay );
light6.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: c6 } ) ) );
scene.add( light6 );
var dlight = new THREE.DirectionalLight( 0xffffff, 0.05 );
dlight.position.set( 0.5, 1, 0 ).normalize();
scene.add( dlight );
// RENDERER
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.gammaInput = true;
renderer.gammaOutput = true;
// STATS
stats = new Stats();
container.appendChild( stats.dom );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
controls.handleResize();
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var time = Date.now() * 0.00025;
var d = 150;
light1.position.x = Math.sin( time * 0.7 ) * d;
light1.position.z = Math.cos( time * 0.3 ) * d;
light2.position.x = Math.cos( time * 0.3 ) * d;
light2.position.z = Math.sin( time * 0.7 ) * d;
light3.position.x = Math.sin( time * 0.7 ) * d;
light3.position.z = Math.sin( time * 0.5 ) * d;
light4.position.x = Math.sin( time * 0.3 ) * d;
light4.position.z = Math.sin( time * 0.5 ) * d;
light5.position.x = Math.cos( time * 0.3 ) * d;
light5.position.z = Math.sin( time * 0.5 ) * d;
light6.position.x = Math.cos( time * 0.7 ) * d;
light6.position.z = Math.cos( time * 0.5 ) * d;
controls.update( clock.getDelta() );
renderer.render( scene, camera );
}
</script>
</body>
</html>