Ameliawb/Three.js

## Three.js
<!--based on code from http://threejs.org/examples/canvas_lines_sphere.html
Minor changes by Amelia Winger-Bearskin for Dan Shiffman's Creative JavaScript Class 2014
-->
<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js-Amelia's Experiment-Week2</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-color: #ffffff;
				margin: 0px;
				overflow: hidden;
			}

			a {
				color:#ffffff;
			}
		</style>
	</head>
	<body>
 <script language="javascript" type="text/javascript" src="three.js"></script>

		<script>

			var SCREEN_WIDTH = window.innerWidth,
			SCREEN_HEIGHT = window.innerHeight,

			mouseX = 0, mouseY = 0,

			windowHalfX = window.innerWidth / 2,
			windowHalfY = window.innerHeight / 2,

			SEPARATION = 500,
			AMOUNTX = 10,
			AMOUNTY = 10,

			camera, scene, renderer;

			init();
			animate();

			function init() {

				var container, separation = 100, amountX = 50, amountY = 50,
				particles, particle;

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

				camera = new THREE.PerspectiveCamera( 75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 10000 );
				camera.position.z = 1000;

				scene = new THREE.Scene();

				renderer = new THREE.CanvasRenderer();
				renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
				container.appendChild( renderer.domElement );
				//light


				//	var light = new THREE.AmbientLight( 0x404090 ); // soft white light
				//	scene.add( light );


				// particles

				var PI2 = Math.PI * 2;
				var material = new THREE.SpriteCanvasMaterial( {

					color: 0xffffff,
					program: function ( context ) {

						context.beginPath();
						context.arc( 0, 0, 0.5, 0, PI2, true );
						context.fill();

					}

				} );

				for ( var i = 0; i < 1000; i ++ ) {

					particle = new THREE.Sprite( material );
					particle.position.x = Math.random() * 2 - 1;
					particle.position.y = Math.random() * 2 - 1;
					particle.position.z = Math.random() * 2 - 1;
					particle.position.normalize();
					particle.position.multiplyScalar( Math.random() * 10 + 750 );
					particle.scale.multiplyScalar( 3 );
					scene.add( particle );
				}
				for ( var i = 0; i < 1000; i ++ ) {

					particle = new THREE.Sprite( material );
					particle.position.x = Math.random() * 2 - 1;
					particle.position.y = Math.random() * 2 - 1;
					particle.position.z = Math.random() * 2 - 1;
					particle.position.normalize();
					particle.position.multiplyScalar( Math.random() * 10 + window.innerHidth );
					particle.scale.multiplyScalar( 5 );
					scene.add( particle );
				}
				for ( var i = 0; i < 1000; i ++ ) {

					particle = new THREE.Sprite( material );
					particle.position.x = Math.random() * 2 - 1;
					particle.position.y = Math.random() * 2 - 1;
					particle.position.z = Math.random() * 2 - 1;
					particle.position.normalize();
					particle.position.multiplyScalar( Math.random() * 10 + window.innerWidth );
					particle.scale.multiplyScalar( 9 );
					scene.add( particle );
				}

				// lines

				for (var i = 0; i < 300; i++) {

					var geometry = new THREE.Geometry();

					var vertex = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
					vertex.normalize();
					vertex.multiplyScalar(760);

					geometry.vertices.push( vertex );

					var vertex2 = vertex.clone();
					vertex2.multiplyScalar( Math.random() * 0.3 + 6);

					geometry.vertices.push( vertex2 );

					var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xfff666, opacity: Math.random() } ) );
					scene.add( line );
						var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xff7f00, opacity: Math.random() } ) );
					scene.add( line );
				}

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );

				//

				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;
				mouseY = event.clientY - windowHalfY;
			}

			function onDocumentTouchStart( event ) {

				if ( event.touches.length > 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;

				}

			}

			function onDocumentTouchMove( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;

				}

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();

			}

			function render() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
				camera.lookAt( scene.position );

				renderer.render( scene, camera );

			}

		</script>
	</body>
</html>
	<!--based on code from http://threejs.org/examples/canvas_lines_sphere.html
	Minor changes by Amelia Winger-Bearskin for Dan Shiffman's Creative JavaScript Class 2014
	-->
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>three.js-Amelia's Experiment-Week2</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-color: #ffffff;
	margin: 0px;
	overflow: hidden;
	}

	a {
	color:#ffffff;
	}
	</style>
	</head>
	<body>
	<script language="javascript" type="text/javascript" src="three.js"></script>

	<script>

	var SCREEN_WIDTH = window.innerWidth,
	SCREEN_HEIGHT = window.innerHeight,

	mouseX = 0, mouseY = 0,

	windowHalfX = window.innerWidth / 2,
	windowHalfY = window.innerHeight / 2,

	SEPARATION = 500,
	AMOUNTX = 10,
	AMOUNTY = 10,

	camera, scene, renderer;

	init();
	animate();

	function init() {

	var container, separation = 100, amountX = 50, amountY = 50,
	particles, particle;

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

	camera = new THREE.PerspectiveCamera( 75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 10000 );
	camera.position.z = 1000;

	scene = new THREE.Scene();

	renderer = new THREE.CanvasRenderer();
	renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
	container.appendChild( renderer.domElement );
	//light


	// var light = new THREE.AmbientLight( 0x404090 ); // soft white light
	// scene.add( light );


	// particles

	var PI2 = Math.PI * 2;
	var material = new THREE.SpriteCanvasMaterial( {

	color: 0xffffff,
	program: function ( context ) {

	context.beginPath();
	context.arc( 0, 0, 0.5, 0, PI2, true );
	context.fill();

	}

	} );

	for ( var i = 0; i < 1000; i ++ ) {

	particle = new THREE.Sprite( material );
	particle.position.x = Math.random() * 2 - 1;
	particle.position.y = Math.random() * 2 - 1;
	particle.position.z = Math.random() * 2 - 1;
	particle.position.normalize();
	particle.position.multiplyScalar( Math.random() * 10 + 750 );
	particle.scale.multiplyScalar( 3 );
	scene.add( particle );
	}
	for ( var i = 0; i < 1000; i ++ ) {

	particle = new THREE.Sprite( material );
	particle.position.x = Math.random() * 2 - 1;
	particle.position.y = Math.random() * 2 - 1;
	particle.position.z = Math.random() * 2 - 1;
	particle.position.normalize();
	particle.position.multiplyScalar( Math.random() * 10 + window.innerHidth );
	particle.scale.multiplyScalar( 5 );
	scene.add( particle );
	}
	for ( var i = 0; i < 1000; i ++ ) {

	particle = new THREE.Sprite( material );
	particle.position.x = Math.random() * 2 - 1;
	particle.position.y = Math.random() * 2 - 1;
	particle.position.z = Math.random() * 2 - 1;
	particle.position.normalize();
	particle.position.multiplyScalar( Math.random() * 10 + window.innerWidth );
	particle.scale.multiplyScalar( 9 );
	scene.add( particle );
	}

	// lines

	for (var i = 0; i < 300; i++) {

	var geometry = new THREE.Geometry();

	var vertex = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
	vertex.normalize();
	vertex.multiplyScalar(760);

	geometry.vertices.push( vertex );

	var vertex2 = vertex.clone();
	vertex2.multiplyScalar( Math.random() * 0.3 + 6);

	geometry.vertices.push( vertex2 );

	var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xfff666, opacity: Math.random() } ) );
	scene.add( line );
	var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0xff7f00, opacity: Math.random() } ) );
	scene.add( line );
	}

	document.addEventListener( 'mousemove', onDocumentMouseMove, false );
	document.addEventListener( 'touchstart', onDocumentTouchStart, false );
	document.addEventListener( 'touchmove', onDocumentTouchMove, false );

	//

	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;
	mouseY = event.clientY - windowHalfY;
	}

	function onDocumentTouchStart( event ) {

	if ( event.touches.length > 1 ) {

	event.preventDefault();

	mouseX = event.touches[ 0 ].pageX - windowHalfX;
	mouseY = event.touches[ 0 ].pageY - windowHalfY;

	}

	}

	function onDocumentTouchMove( event ) {

	if ( event.touches.length == 1 ) {

	event.preventDefault();

	mouseX = event.touches[ 0 ].pageX - windowHalfX;
	mouseY = event.touches[ 0 ].pageY - windowHalfY;

	}

	}

	//

	function animate() {

	requestAnimationFrame( animate );

	render();

	}

	function render() {

	camera.position.x += ( mouseX - camera.position.x ) * .05;
	camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
	camera.lookAt( scene.position );

	renderer.render( scene, camera );

	}

	</script>
	</body>
	</html>