javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing manual msaa</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 {
				margin: 0px;
				background-color: #000;
				overflow: hidden;
				font-family:Monospace;
				font-size:13px;
				margin: 0px;
				text-align:center;
				overflow: hidden;
			}

			#info {
				color: #fff;
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				display:block;
			}
		</style>
	</head>
	<body>
		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a> - Manual Multi-Sample Anti-Aliasing (MSAA) pass by <a href="https://clara.io" target="_blank">Ben Houston</a>
		</div>

		<div id="container"></div>

		<script src="../build/three.min.js"></script>
		<script src="js/libs/stats.min.js"></script>
		<script src="js/libs/dat.gui.min.js"></script>

		<script src="js/postprocessing/MSAAPass.js"></script>
		<script src="js/shaders/CopyShader.js"></script>
		<script src="js/shaders/CompositeShader.js"></script>

		<script src="js/postprocessing/EffectComposer.js"></script>
		<script src="js/postprocessing/RenderPass.js"></script>
		<script src="js/postprocessing/MaskPass.js"></script>
		<script src="js/postprocessing/ShaderPass.js"></script>


		<script>

			var camera, scene, renderer, composer, copyPass, msaaPass;
			var geometry, material, gui, object, stats;

			var param = { MSAASampleLevel: 2 };

			var textureLoader = new THREE.TextureLoader();

			container = document.getElementById( "container" );

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

			textureLoader.load( "./textures/brick_diffuse.jpg", function( meshTexture ) {
				init( meshTexture );
				animate();
				clearGui();


			});


			function clearGui() {

				if ( gui ) gui.destroy();

				gui = new dat.GUI();

				var example = gui.add( param, 'MSAASampleLevel', {
					'Level 0: 1 Sample': 0,
					'Level 1: 2 Samples': 1,
					'Level 2: 4 Samples': 2,
					'Level 3: 8 Samples': 3,
					'Level 4: 16 Samples': 4,
					'Level 5: 32 Samples': 5
				} ).onFinishChange( function() {

					if( massPass ) {
						massPass.sampleLevel = param.MSAASampleLevel;
					}

				} );

				gui.open();

			}

			function init( meshTexture ) {

				renderer = new THREE.WebGLRenderer( { antialias: false } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.body.appendChild( renderer.domElement );

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.z = 400;

				scene = new THREE.Scene();

				geometry = new THREE.BoxGeometry( 200, 200, 200 );
				material = new THREE.MeshBasicMaterial( { map: meshTexture } );
				meshTexture.anisotropy = 0;

				object = new THREE.Mesh( geometry, material );

				scene.add( object );

				// postprocessing

				composer = new THREE.EffectComposer( renderer );

				massPass = new THREE.MSAAPass( scene, camera );
				massPass.sampleLevel = param.MSAASampleLevel;
				composer.addPass( massPass );

				copyPass = new THREE.ShaderPass( THREE.CopyShader );
		    copyPass.renderToScreen = true;
				composer.addPass( copyPass );

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

			}

			function onWindowResize() {

				var width = window.innerWidth;
				var height = window.innerHeight;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();

				renderer.setSize( width, height );

				var pixelRatio = renderer.getPixelRatio();
				var newWidth  = Math.floor( width / pixelRatio ) || 1;
				var newHeight = Math.floor( height / pixelRatio ) || 1;
				composer.setSize( newWidth, newHeight );
				if( msaaPass ) msaaPass.setSize( newWidth, newHeight );

			}

			function animate() {

				requestAnimationFrame( animate );

				object.rotation.x += 0.005;
				object.rotation.y += 0.01;

				composer.render();

				stats.update();

			}

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