javascript
/
three.js
zrcadlo https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js canvas - combo camera - orthographic + perspective</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;
				color: purple;
			}

			a {
				color: red;
			}
		</style>
	</head>
	<body>

		<script src="../build/three.js"></script>

		<script src="js/cameras/CombinedCamera.js"></script>

		<script src="js/renderers/Projector.js"></script>
		<script src="js/renderers/CanvasRenderer.js"></script>

		<script src="js/libs/stats.min.js"></script>

		<div style="position: absolute; top: 10px; width: 100%; text-align: center; ">
			<a href="http://threejs.org" target="_blank">three.js</a> - Combo Camera<br>
			View: <a href="#" onclick="setOrthographic();return false;"> Orthographic</a> |
				<a href="#" onclick="setPerspective();return false;">Perspective</a><br>
			Lens: <a href="#" onclick="setLens(12);return false;">12mm</a> |
				<a href="#" onclick="setLens(16);return false;">16mm</a> |
				<a href="#" onclick="setLens(24);return false;">24mm</a> |
				<a href="#" onclick="setLens(35);return false;">35mm</a> |
				<a href="#" onclick="setLens(50);return false;">50mm</a> |
				<a href="#" onclick="setLens(60);return false;">60mm</a> |
				<a href="#" onclick="setLens(85);return false;">85mm</a> |
				<a href="#" onclick="setLens(105);return false;">105mm</a><br>
			Fov: <a href="#" onclick="setFov(30);return false;">30°</a> |
				<a href="#" onclick="setFov(50);return false;">50°</a> |
				<a href="#" onclick="setFov(70);return false;">70°</a> |
				<a href="#" onclick="setFov(100);return false;">100°</a><br>
			Zoom: <a href="#" onclick="camera.setZoom(0.5);return false;">0.5x</a> |
					<a href="#" onclick="camera.setZoom(1);return false;">1x</a> |
					<a href="#" onclick="camera.setZoom(2);return false;">2x</a> |

				<br/>
			Views: <a href="#" onclick="camera.toTopView();lookAtScene=false;return false;">Top view</a> |
				<a href="#" onclick="camera.toBottomView();lookAtScene=false;return false;">Bottom view</a> |
				<a href="#" onclick="camera.toLeftView();lookAtScene=false;return false;">Left view</a> |
				<a href="#" onclick="camera.toRightView();lookAtScene=false;return false;">Right view</a> |
				<a href="#" onclick="camera.toFrontView();lookAtScene=false;return false;">Front view</a> |
				<a href="#" onclick="camera.toBackView();lookAtScene=false;return false;">Back view</a> |
				<a href="#" onclick="lookAtScene=true;return false;">Look at Scene</a>
				<br/>
			<div id="fov"></div>
		</div>


		<script>

			var container, stats;
			var camera, scene, renderer;
			var lookAtScene = true;

			init();
			animate();

			function setFov( fov ) {

				camera.setFov( fov );

				document.getElementById('fov').innerHTML = 'FOV '+ fov.toFixed(2) +'&deg;' ;

			}

			function setLens( lens ) {

				// try adding a tween effect while changing focal length, and it'd be even cooler!

				var fov = camera.setLens( lens );

				document.getElementById('fov').innerHTML = 'Converted ' + lens + 'mm lens to FOV '+ fov.toFixed(2) +'&deg;' ;

			}

			function setOrthographic() {

				camera.toOrthographic();

				document.getElementById('fov').innerHTML = 'Orthographic mode' ;

			}

			function setPerspective() {

				camera.toPerspective();

				document.getElementById('fov').innerHTML = 'Perspective mode' ;

			}

			function init() {

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

				camera = new THREE.CombinedCamera( window.innerWidth / 2, window.innerHeight / 2, 70, 1, 1000, - 500, 1000 );

				camera.position.x = 200;
				camera.position.y = 100;
				camera.position.z = 200;

				scene = new THREE.Scene();

				// Grid

				var size = 500, step = 50;

				var geometry = new THREE.Geometry();

				for ( var i = - size; i <= size; i += step ) {

					geometry.vertices.push( new THREE.Vector3( - size, 0, i ) );
					geometry.vertices.push( new THREE.Vector3(   size, 0, i ) );

					geometry.vertices.push( new THREE.Vector3( i, 0, - size ) );
					geometry.vertices.push( new THREE.Vector3( i, 0,   size ) );

				}

				var material = new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } );

				var line = new THREE.LineSegments( geometry, material );
				scene.add( line );

				// Cubes

				var geometry = new THREE.BoxGeometry( 50, 50, 50 );
				var material = new THREE.MeshLambertMaterial( { color: 0xffffff, overdraw: 0.5 } );

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

					var cube = new THREE.Mesh( geometry, material );

					cube.scale.y = Math.floor( Math.random() * 2 + 1 );

					cube.position.x = Math.floor( ( Math.random() * 1000 - 500 ) / 50 ) * 50 + 25;
					cube.position.y = ( cube.scale.y * 50 ) / 2;
					cube.position.z = Math.floor( ( Math.random() * 1000 - 500 ) / 50 ) * 50 + 25;

					scene.add(cube);

				}

				// Lights

				var ambientLight = new THREE.AmbientLight( Math.random() * 0x10 );
				scene.add( ambientLight );

				var directionalLight = new THREE.DirectionalLight( Math.random() * 0xffffff );
				directionalLight.position.x = Math.random() - 0.5;
				directionalLight.position.y = Math.random() - 0.5;
				directionalLight.position.z = Math.random() - 0.5;
				directionalLight.position.normalize();
				scene.add( directionalLight );

				var directionalLight = new THREE.DirectionalLight( Math.random() * 0xffffff );
				directionalLight.position.x = Math.random() - 0.5;
				directionalLight.position.y = Math.random() - 0.5;
				directionalLight.position.z = Math.random() - 0.5;
				directionalLight.position.normalize();
				scene.add( directionalLight );

				renderer = new THREE.CanvasRenderer();
				renderer.setClearColor( 0xf0f0f0 );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				stats = new Stats();
				container.appendChild( stats.dom );

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

				function onWindowResize(){

					camera.setSize( window.innerWidth, window.innerHeight );
					camera.updateProjectionMatrix();

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

				}

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				stats.begin();
				render();
				stats.end();

			}

			function render() {

				var timer = Date.now() * 0.0001;

				camera.position.x = Math.cos( timer ) * 200;
				camera.position.z = Math.sin( timer ) * 200;
				if ( lookAtScene ) camera.lookAt( scene.position );

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>