samien
/
three.js
зеркало из https://github.com/mrdoob/three.js.git


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js webgl - draggable cubes</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				font-family: Monospace;
				background-color: #f0f0f0;
				margin: 0px;
				overflow: hidden;
			}
		</style>
	</head>
	<body>

		<script type="text/javascript" src="../build/Three.js"></script>

		<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
		<script type="text/javascript" src="js/Stats.js"></script>

		<script type="text/javascript">

			var container, data, stats;
			var camera, scene, projector, renderer;
			var objects = [], plane;

			var mouse = { x: 0, y: 0 }, INTERSECTED, SELECTED;

			init();
			animate();

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				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://github.com/mrdoob/three.js" target="_blank">three.js</a> webgl - draggable cubes';
				container.appendChild( info );

				camera = new THREE.Camera( 70, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.z = 1000;

				scene = new THREE.Scene();

				var light = new THREE.DirectionalLight( 0xffffff, 2 );
				light.position.x = 1;
				light.position.y = 1;
				light.position.z = 1;
				light.position.normalize();
				scene.addLight( light );

				var light = new THREE.DirectionalLight( 0xffffff );
				light.position.x = - 1;
				light.position.y = - 1;
				light.position.z = - 1;
				light.position.normalize();
				scene.addLight( light );

				var geometry = new THREE.CubeGeometry( 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() * 800 - 400;
					object.position.y = Math.random() * 600 - 300;
					object.position.z = Math.random() * 800 - 400;
					object.rotation.x = ( Math.random() * 360 ) * Math.PI / 180;
					object.rotation.y = ( Math.random() * 360 ) * Math.PI / 180;
					object.rotation.z = ( Math.random() * 360 ) * Math.PI / 180;
					object.scale.x = Math.random() * 2 + 1;
					object.scale.y = Math.random() * 2 + 1;
					object.scale.z = Math.random() * 2 + 1;
					scene.addObject( object );

					objects.push( object );

				}

				plane = new THREE.Mesh( new THREE.PlaneGeometry( 2000, 2000, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0x000000, opacity: 0.5, wireframe: true } ) );
				plane.visible = false;
				scene.addObject( plane );

				projector = new THREE.Projector();

				renderer = new THREE.WebGLRenderer();
				renderer.sortObjects = false;
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild(renderer.domElement);

				data = document.createElement( 'div' );
				data.style.position = 'absolute';
				data.style.whiteSpace = 'nowrap';
				data.style.color = '#404040';
				data.style.padding = '8px';
				data.style.backgroundColor = '#ffffff';
				container.appendChild( data );

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				container.appendChild( stats.domElement );

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'mousedown', onDocumentMouseDown, false );
				document.addEventListener( 'mouseup', onDocumentMouseUp, false );

			}

			function onDocumentMouseMove( event ) {

				event.preventDefault();

				data.style.left = ( - 20 + event.clientX) + 'px';
				data.style.top = ( 10 + event.clientY ) + 'px';

				mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
				mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;

				//

				var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
				projector.unprojectVector( vector, camera );

				var ray = new THREE.Ray( camera.position, vector.subSelf( camera.position ).normalize() );


				if ( SELECTED ) {

					var intersects = ray.intersectObject( plane );
					SELECTED.position.copy( intersects[ 0 ].point );
					return;

				}


				var intersects = ray.intersectObjects( objects );

				if ( intersects.length > 0 ) {

					if ( INTERSECTED != intersects[ 0 ].object ) {

						if ( INTERSECTED ) INTERSECTED.materials[ 0 ].color.setHex( INTERSECTED.currentHex );

						INTERSECTED = intersects[ 0 ].object;
						INTERSECTED.currentHex = INTERSECTED.materials[ 0 ].color.getHex();
						INTERSECTED.materials[ 0 ].color.setHex( 0xff0000 );

						plane.position.copy( INTERSECTED.position );

					}

				} else {

					if ( INTERSECTED ) INTERSECTED.materials[ 0 ].color.setHex( INTERSECTED.currentHex );

					INTERSECTED = null;

				}

			}

			function onDocumentMouseDown( event ) {

				event.preventDefault();

				var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
				projector.unprojectVector( vector, camera );

				var ray = new THREE.Ray( camera.position, vector.subSelf( camera.position ).normalize() );

				var intersects = ray.intersectObjects( objects );

				if ( intersects.length > 0 ) {

					SELECTED = intersects[ 0 ].object;

				}

			}

			function onDocumentMouseUp( event ) {

				event.preventDefault();

				SELECTED = null;

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			var radius = 100;
			var theta = 0;

			function render() {

				theta += 0.2;

				renderer.render( scene, camera );

				if ( INTERSECTED ) {

					data.style.visibility = 'visible';
					data.innerHTML = 'x: ' + INTERSECTED.position.x + '<br>y: ' + INTERSECTED.position.y + '<br>z: ' + INTERSECTED.position.z;

				} else {

					data.style.visibility = 'hidden';

				}

			}

		</script>

	</body>
</html>