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日時: 2013/03/01 14:24
名前: lightbox
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拡張子:
<style type="text/css">
.bt {
border: 0;
width: 200px;
height: 30px;
text-align: center;
font-size:14px;
font-weight: bold;
cursor: pointer;
background-color: #fff;
margin: 4px 4px 4px 4px;
color: #fff;
background-image: url()
}
</style>
<input
class="bt"
type="button"
value="再構成"
onclick='new_cubes();'
/>
<input
class="bt"
type="button"
value="全て削除"
onclick='remove_all();'
/>
<div id="container"></div>
<script src="http://xxxxxx.xx/xxx/Three.js"></script>
<script>
var container;
var camera, scene, renderer;
var w = 760;
var h = 500;
var s = 1.2;
var speed = 0.0001;
var cubes = [];
init();
animate();
function init() {
container = document.getElementById("container");
camera = new THREE.OrthographicCamera(
w * -1 * s,
w * s,
h * s,
h * -1 * s,
- 3000,
1000
);
camera.position.x = 200;
camera.position.y = 100;
camera.position.z = 200;
scene = new THREE.Scene();
scene.add( camera );
// Grid
var geometry = new THREE.Geometry();
geometry.vertices.push( new THREE.Vertex( new THREE.Vector3( - 500, 0, 0 ) ) );
geometry.vertices.push( new THREE.Vertex( new THREE.Vector3( 500, 0, 0 ) ) );
for ( var i = 0; i <= 20; i ++ ) {
var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.z = ( i * 50 ) - 500;
scene.add( line );
var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.x = ( i * 50 ) - 500;
line.rotation.y = 90 * Math.PI / 180;
scene.add( line );
}
// Cubes
new_cubes();
// Lights
var ambientLight = new THREE.AmbientLight( Math.random() * 0x10 );
scene.add( ambientLight );
var directionalLight = new THREE.DirectionalLight( Math.random() * 0xffffff );
directionalLight.position.x = Math.random() - 0.5;
directionalLight.position.y = Math.random() - 0.5;
directionalLight.position.z = Math.random() - 0.5;
directionalLight.position.normalize();
scene.add( directionalLight );
var directionalLight = new THREE.DirectionalLight( Math.random() * 0xffffff );
directionalLight.position.x = Math.random() - 0.5;
directionalLight.position.y = Math.random() - 0.5;
directionalLight.position.z = Math.random() - 0.5;
directionalLight.position.normalize();
scene.add( directionalLight );
renderer = new THREE.CanvasRenderer();
renderer.setSize( w, h );
container.appendChild( renderer.domElement );
}
//
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
var timer = new Date().getTime() * speed;
camera.position.x = Math.cos( timer ) * 200;
camera.position.z = Math.sin( timer ) * 200;
camera.lookAt( scene.position );
renderer.render( scene, camera );
}
function remove_all() {
var len = cubes.length;
if ( len != 0 ) {
for( var i = 0; i < len; i++ ) {
scene.remove( cubes[i] );
}
for( var i = len - 1; i >= 0; i-- ) {
cubes.splice( i, 1 );
}
}
}
function new_cubes() {
var len = cubes.length;
if ( len == 0 ) {
var geometry = new THREE.CubeGeometry( 50, 50, 50 );
var material = new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, overdraw: true } );
for ( var i = 0; i < 100; i ++ ) {
var cube = new THREE.Mesh( geometry, material );
cube.scale.y = Math.floor( Math.random() * 2 + 1 );
cube.position.x = Math.floor( ( Math.random() * 1000 - 500 ) / 50 ) * 50 + 25;
cube.position.y = ( cube.scale.y * 50 ) / 2;
cube.position.z = Math.floor( ( Math.random() * 1000 - 500 ) / 50 ) * 50 + 25;
scene.add(cube);
cubes.push(cube);
}
}
}
</script>
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