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webgl_geometry_hierarchy2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - geometry hierarchy 2</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;
font-weight: bold;
overflow:hidden;
}
</style>
</head>
<body>
<script src="../build/three.min.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, scene, renderer;
var geometry, root;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 15000 );
camera.position.z = 500;
scene = new THREE.Scene();
var geometry = new THREE.CubeGeometry( 100, 100, 100 );
var material = new THREE.MeshNormalMaterial();
root = new THREE.Mesh( geometry, material );
root.position.x = 1000;
scene.add( root );
var amount = 200, object, parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.x = 100;
parent.add( object );
parent = object;
}
parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.x = - 100;
parent.add( object );
parent = object;
}
parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.y = - 100;
parent.add( object );
parent = object;
}
parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.y = 100;
parent.add( object );
parent = object;
}
parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.z = - 100;
parent.add( object );
parent = object;
}
parent = root;
for ( var i = 0; i < amount; i ++ ) {
object = new THREE.Mesh( geometry, material );
object.position.z = 100;
parent.add( object );
parent = object;
}
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.sortObjects = false;
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseMove(event) {
mouseX = ( event.clientX - windowHalfX ) * 10;
mouseY = ( event.clientY - windowHalfY ) * 10;
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var time = Date.now() * 0.001;
var rx = Math.sin( time * 0.7 ) * 0.2;
var ry = Math.sin( time * 0.3 ) * 0.1;
var rz = Math.sin( time * 0.2 ) * 0.1;
camera.position.x += ( mouseX - camera.position.x ) * .05;
camera.position.y += ( - mouseY - camera.position.y ) * .05;
camera.lookAt( scene.position );
root.traverse( function ( object ) {
object.rotation.x = rx;
object.rotation.y = ry;
object.rotation.z = rz;
} );
renderer.render( scene, camera );
}
</script>
</body>
</html>