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webgl_interactive_draggablecubes.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - draggable cubes</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 {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
</style>
</head>
<body>
<script src="../build/three.js"></script>
<script src="js/controls/DragControls.js"></script>
<script src="js/controls/TrackballControls.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
var container, stats;
var camera, controls, scene, renderer;
var objects = [];
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 5000 );
camera.position.z = 1000;
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 = true;
controls.dynamicDampingFactor = 0.3;
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xf0f0f0 );
scene.add( new THREE.AmbientLight( 0x505050 ) );
var light = new THREE.SpotLight( 0xffffff, 1.5 );
light.position.set( 0, 500, 2000 );
light.angle = Math.PI / 9;
light.castShadow = true;
light.shadow.camera.near = 1000;
light.shadow.camera.far = 4000;
light.shadow.mapSize.width = 1024;
light.shadow.mapSize.height = 1024;
scene.add( light );
var geometry = new THREE.BoxBufferGeometry( 40, 40, 40 );
for ( var i = 0; i < 200; i ++ ) {
var object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
object.position.x = Math.random() * 1000 - 500;
object.position.y = Math.random() * 600 - 300;
object.position.z = Math.random() * 800 - 400;
object.rotation.x = Math.random() * 2 * Math.PI;
object.rotation.y = Math.random() * 2 * Math.PI;
object.rotation.z = Math.random() * 2 * Math.PI;
object.scale.x = Math.random() * 2 + 1;
object.scale.y = Math.random() * 2 + 1;
object.scale.z = Math.random() * 2 + 1;
object.castShadow = true;
object.receiveShadow = true;
scene.add( object );
objects.push( object );
}
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = THREE.PCFShadowMap;
container.appendChild( renderer.domElement );
var dragControls = new THREE.DragControls( objects, camera, renderer.domElement );
dragControls.addEventListener( 'dragstart', function () {
controls.enabled = false;
} );
dragControls.addEventListener( 'dragend', function () {
controls.enabled = true;
} );
var info = document.createElement( 'div' );
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = '<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - draggable cubes';
container.appendChild( info );
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 );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
controls.update();
renderer.render( scene, camera );
}
</script>
</body>
</html>