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<!DOCTYPE html>
<html lang="en">
	<head>
	<link rel="shortcut icon" type="image/x-icon" href="favicon.ico" />
		<title>aznyj.com</title>
		<meta charset="utf-8">
		<meta name="author" content="GC - 1091409394@qq.com" />
		<style>
			body {
				background-color: #f4f4f4;
				margin: 0px;
				overflow: hidden;
			}
			.LoR {
				height:205px;
				width:164px;
				overflow:hidden;
				background: url(GC/logo.png) 0 0 no-repeat;
				position:absolute;
				top:50%;
				left:50%;
				margin:-102px auto auto -82px;
				z-index:2;
			}
		</style>
		<script src="GC/three.min.js"></script>
	</head>
	<body>

		

		<script>

			var container;
			var camera, scene, projector, renderer;

			var PI2 = Math.PI * 2;

			var programFill = function ( context ) {

				context.beginPath();
				context.arc( 0, 0, 1, 0, PI2, true );
				context.closePath();
				context.fill();

			}

			var programStroke = function ( context ) {

				context.lineWidth = 0.05;
				context.beginPath();
				context.arc( 0, 0, 1, 0, PI2, true );
				context.closePath();
				context.stroke();

			}

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

			init();
			animate();

			function init() {

				container = document.createElement( 'div' );
				container.id = 'bgc';
				container.style.position = 'relative';
				container.style.zIndex = '0';
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.set( 0, 300, 500 );

				scene = new THREE.Scene();

				for ( var i = 0; i < 100; i ++ ) {

					var particle = new THREE.Particle( new THREE.ParticleCanvasMaterial( { color: Math.random() * 0x808080 + 0x808080, program: programStroke } ) );
					particle.position.x = Math.random() * 800 - 400;
					particle.position.y = Math.random() * 800 - 400;
					particle.position.z = Math.random() * 800 - 400;
					particle.scale.x = particle.scale.y = Math.random() * 10 + 10;
					scene.add( particle );

				}

				projector = new THREE.Projector();

				renderer = new THREE.CanvasRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );

				container.appendChild( renderer.domElement );



				document.addEventListener( 'mousemove', onDocumentMouseMove, false );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function onDocumentMouseMove( event ) {

				event.preventDefault();

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

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();

			}

			var radius = 600;
			var theta = 0;

			function render() {

				// rotate camera

				theta += 0.2;

				camera.position.x = radius * Math.sin( theta * Math.PI / 360 );
				camera.position.y = radius * Math.sin( theta * Math.PI / 360 );
				camera.position.z = radius * Math.cos( theta * Math.PI / 360 );
				camera.lookAt( scene.position );

				// find intersections

				camera.updateMatrixWorld();

				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( scene.children );

				if ( intersects.length > 0 ) {

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

						if ( INTERSECTED ) INTERSECTED.material.program = programStroke;

						INTERSECTED = intersects[ 0 ].object;
						INTERSECTED.material.program = programFill;

					}

				} else {

					if ( INTERSECTED ) INTERSECTED.material.program = programStroke;

					INTERSECTED = null;

				}

				renderer.render( scene, camera );

			}

		</script>

		<div class="LoR"></div>

	</body>
</html>