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misc_lights_test.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js misc - lights - point + directional</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:#fff;
padding:0;
margin:0;
overflow:hidden;
font-family:georgia;
text-align:center;
}
h1 { }
a { color:skyblue }
canvas { pointer-events:none; z-index:10; }
#d { text-align:center; margin:1em 0 -11.4em 0; z-index:0; position:relative; display:block }
.button { background:#000; color:#fff; padding:0.2em 0.5em; cursor:pointer }
.inactive { background:#999; color:#eee }
</style>
</head>
<body>
<div id="d">
<h1>lights test</h1>
<span id="rcanvas" class="button inactive">2d canvas renderer</span>
<span id="rwebgl" class="button">WebGL renderer</span>
<br/>
<p>Best viewed in Chrome or Firefox using WebGL renderer.
<p>Canvas renderer is very slow on anything other than Chrome.
</div>
<script src="../build/three.min.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var SCREEN_WIDTH = window.innerWidth / 2;
var SCREEN_HEIGHT = window.innerHeight;
var FLOOR = -250;
var container, stats;
var camera, scene, canvasRenderer, webglRenderer;
var mesh, zmesh, lightMesh, geometry;
var materialSpheres, materialTorus;
var directionalLight, pointLight;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var render_canvas = 1, render_gl = 1;
var has_gl = 0;
var lightAdded = false;
var clock = new THREE.Clock();
var bcanvas = document.getElementById( 'rcanvas' );
var bwebgl = document.getElementById( 'rwebgl' );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
init();
animate();
//render_canvas = !has_gl;
bwebgl.style.display = has_gl ? 'inline' : 'none';
bcanvas.className = render_canvas ? 'button' : 'button inactive';
function init() {
container = document.createElement('div');
document.body.appendChild(container);
camera = new THREE.PerspectiveCamera( 75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
camera.position.z = 500;
scene = new THREE.Scene();
// Spheres
var geometry = new THREE.SphereGeometry( 100, 16, 8 );
materialSpheres = new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, overdraw: true } );
for ( var i = 0; i < 30; i ++ ) {
mesh = new THREE.Mesh( geometry, materialSpheres );
mesh.position.x = 500 * ( Math.random() - 0.5 );
mesh.position.y = 500 * ( Math.random() - 0.5 );
mesh.position.z = 500 * ( Math.random() - 0.5 );
mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.25 * ( Math.random() + 0.5 );
scene.add( mesh );
}
// Torus
materialTorus = new THREE.MeshLambertMaterial( { color: 0xffffff, overdraw: true } );
mesh = new THREE.Mesh( new THREE.TorusGeometry( 100, 25, 15, 30 ), materialTorus );
scene.add( mesh );
// Lights
var ambient = new THREE.AmbientLight( 0x101010 );
scene.add( ambient );
directionalLight = new THREE.DirectionalLight( 0xffffff );
directionalLight.position.set( 0, -70, 100 ).normalize();
//scene.add( directionalLight );
pointLight = new THREE.PointLight( 0xffaa00 );
scene.add( pointLight );
lightMesh = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { color: 0xffaa00 } ) );
lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
lightMesh.position = pointLight.position;
scene.add( lightMesh );
if ( render_canvas ) {
canvasRenderer = new THREE.CanvasRenderer();
canvasRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
container.appendChild( canvasRenderer.domElement );
}
if ( render_gl ) {
try {
webglRenderer = new THREE.WebGLRenderer( { alpha: true } );
webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
webglRenderer.domElement.style.position = "relative";
container.appendChild( webglRenderer.domElement );
has_gl = 1;
} catch (e) {
}
}
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
bcanvas.addEventListener("click", toggleCanvas, false);
bwebgl.addEventListener("click", toggleWebGL, false);
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
SCREEN_WIDTH = window.innerWidth / 2;
SCREEN_HEIGHT = window.innerHeight;
camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
camera.updateProjectionMatrix();
if ( canvasRenderer ) canvasRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
if ( webglRenderer ) webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var delta = clock.getDelta();
var r = clock.getElapsedTime();
if ( ! lightAdded && r >= 3.0 ) {
scene.add( directionalLight );
materialTorus.needsUpdate = true;
materialSpheres.needsUpdate = true;
lightAdded = true;
}
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
camera.lookAt( scene.position );
for ( var i = 0, l = scene.children.length; i < l; i ++ ) {
var object = scene.children[ i ];
if ( object instanceof THREE.Mesh ) {
if ( i % 3 == 1 )
object.rotation.z += 1.5 * delta;
else if ( i % 3 == 2 )
object.rotation.y += 1.5 * delta;
else if ( i % 3 == 0 )
object.rotation.x += 1.5 * delta;
}
}
lightMesh.position.x = 200 * Math.cos( r );
lightMesh.position.z = 200 * Math.sin( r );
if ( render_canvas ) canvasRenderer.render( scene, camera );
if ( render_gl && has_gl ) webglRenderer.render( scene, camera );
}
function toggleCanvas() {
render_canvas = !render_canvas;
bcanvas.className = render_canvas ? "button" : "button inactive";
render_gl = !render_canvas;
bwebgl.className = render_gl ? "button" : "button inactive";
if( has_gl )
webglRenderer.domElement.style.display = render_gl ? "block" : "none";
canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
}
function toggleWebGL() {
render_gl = !render_gl;
bwebgl.className = render_gl ? "button" : "button inactive";
render_canvas = !render_gl;
bcanvas.className = render_canvas ? "button" : "button inactive";
if( has_gl )
webglRenderer.domElement.style.display = render_gl ? "block" : "none";
canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
}
</script>
</body>
</html>