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


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing</title>
		<meta charset="utf-8">
		<style>
			body {
				margin: 0px;
				background-color: #ffffff;
				overflow: hidden;
			}

			div {
				position: absolute;
				z-index: 10;
				color: #fff;
				font-family: monospace;
				text-align: center;
				margin: 10px;
				width: 100%;
			}

			label, input {
				cursor: pointer;
			}
		</style>
	</head>
	<body>

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

		<script src="js/shaders/CopyShader.js"></script>
		<script src="js/shaders/SSAOShader.js"></script>
		<script src="js/shaders/DotScreenShader.js"></script>
		<script src="js/shaders/RGBShiftShader.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>

		<div>
			<label for="ssao">Ambient Occlusion:</label><input id="ssao" checked type="checkbox" onchange="updateOptions()"/><br />
			<label for="dotScreen">Dot Screen:</label><input id="dotScreen" type="checkbox" onchange="updateOptions()"/><br />
			<label for="rgbShift">RGB Shift:</label><input id="rgbShift" type="checkbox" onchange="updateOptions()" /><br />
		</div>

		<script>

			var camera, scene, renderer, composer;
			var object, light;

			var depthScale = 0.5;
			var depthPassPlugin, depthTarget;
			var ssaoEffect, dotScreenEffect, rgbShiftEffect;

			init();
			animate();

			function updateOptions() {

				ssaoEffect.enabled = document.getElementById('ssao').checked;
				dotScreenEffect.enabled = document.getElementById('dotScreen').checked;
				rgbShiftEffect.enabled = document.getElementById('rgbShift').checked;

			}

			function init() {

				renderer = new THREE.WebGLRenderer();
				renderer.setClearColor( 0xf0f0f0 );
				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();

				object = new THREE.Object3D();
				scene.add( object );

				var geometry = new THREE.BoxGeometry( 1, 1, 1 );

				for ( var i = 0; i < 100; i ++ ) {
					
					var material = new THREE.MeshPhongMaterial( { color: 0xffffff * Math.random(), shading: THREE.FlatShading } );

					var mesh = new THREE.Mesh( geometry, material );
					mesh.position.set( Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5 ).normalize();
					mesh.position.multiplyScalar( Math.random() * 400 );
					mesh.rotation.set( Math.random() * 2, Math.random() * 2, Math.random() * 2 );
					mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50;
					object.add( mesh );

				}

				light = new THREE.DirectionalLight( 0xffffff, 0.5 );
				light.position.set( - 1, - 1, - 1 );
				scene.add( light );

				light = new THREE.DirectionalLight( 0xffffff, 1.5 );
				light.position.set( 1, 1, 1 );
				scene.add( light );

				// postprocessing

				composer = new THREE.EffectComposer( renderer );
				composer.addPass( new THREE.RenderPass( scene, camera ) );

				depthTarget = new THREE.WebGLRenderTarget( window.innerWidth * depthScale, window.innerHeight * depthScale, { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter } );

				ssaoEffect = new THREE.ShaderPass( THREE.SSAOShader );
				ssaoEffect.uniforms[ 'tDepth' ].value = depthTarget;
				ssaoEffect.uniforms[ 'size' ].value.set( window.innerWidth * depthScale, window.innerHeight * depthScale );
				ssaoEffect.uniforms[ 'cameraNear' ].value = camera.near;
				ssaoEffect.uniforms[ 'cameraFar' ].value = camera.far;
				composer.addPass( ssaoEffect );

				dotScreenEffect = new THREE.ShaderPass( THREE.DotScreenShader );
				dotScreenEffect.uniforms[ 'scale' ].value = 4;
				composer.addPass( dotScreenEffect );

				rgbShiftEffect = new THREE.ShaderPass( THREE.RGBShiftShader );
				rgbShiftEffect.uniforms[ 'amount' ].value = 0.0015;
				composer.addPass( rgbShiftEffect );

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

				//

				// depth pass

				depthPassPlugin = new THREE.DepthPassPlugin();
				depthPassPlugin.renderTarget = depthTarget;

				renderer.addPrePlugin( depthPassPlugin );

				//

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

				updateOptions();

			}

			function onWindowResize() {

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

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

				depthTarget = new THREE.WebGLRenderTarget( window.innerWidth * depthScale, window.innerHeight * depthScale, { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter } );

				depthPassPlugin.renderTarget = depthTarget;

				ssaoEffect.uniforms[ 'size' ].value.set( window.innerWidth * depthScale, window.innerHeight * depthScale );
				ssaoEffect.uniforms[ 'tDepth' ].value = depthTarget;

			}

			function animate() {

				requestAnimationFrame( animate );

				var time = Date.now();

				object.rotation.x = time * 0.0002;
				object.rotation.y = time * 0.0001;

				for ( var i = 0, l = object.children.length; i < l; i ++ ) {

					var child = object.children[ i ];
					var scale = Math.sin( child.position.x + time * 0.0005 ) * 50 + 50;
					child.scale.set( scale, scale, scale );

				}

				depthPassPlugin.enabled = true;

				renderer.autoClear = false;
				renderer.render( scene, camera );

				// renderer.render( scene, camera, depthTarget, true );

				depthPassPlugin.enabled = false;

				//

				composer.render();

			}

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