javascript
/
three.js
réplica de https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl</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;
			}

			.info {
				position: absolute;
				background-color: black;
				opacity: 0.8;
				color: white;
				text-align: center;
				top: 0px;
				width: 100%;
				padding: 2px;
			}

			a { color: #00ffff; }
		</style>
	</head>
	<body>
		<script src="../build/three.js"></script>

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

		<script src="js/shaders/CopyShader.js"></script>
		<script src="js/shaders/HalftoneShader.js"></script>
		<script src="js/shaders/DepthLimitedBlurShader.js"></script>
		<script src="js/shaders/UnpackDepthRGBAShader.js"></script>

		<script src="js/controls/OrbitControls.js"></script>
		<script src="js/WebGL.js"></script>
		<script src='js/libs/stats.min.js'></script>
		<script src='js/libs/dat.gui.min.js'></script>

		<div class="info">
			<a href="http://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - RGB Halftone post-processing by
			<a href="https://github.com/meatbags" target="_blank">Xavier Burrow</a>
		</div>

		<script>

		if ( WEBGL.isWebGLAvailable() === false ) {

			document.body.appendChild( WEBGL.getWebGLErrorMessage() );

		}

		// setup
		var wrapper, renderer, clock, camera, controls, stats, rotationSpeed;

		wrapper = document.createElement( 'div' );
		renderer = new THREE.WebGLRenderer();
		renderer.setPixelRatio( window.devicePixelRatio );
		renderer.setSize( window.innerWidth, window.innerHeight );
		clock = new THREE.Clock();
		camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 1000 );
		camera.position.z = 12;
		rotationSpeed = Math.PI / 64;
		stats = new Stats();
		wrapper.appendChild( renderer.domElement );
		wrapper.appendChild( stats.dom );
		document.body.appendChild( wrapper );

		// camera controls
		controls = new THREE.OrbitControls( camera, renderer.domElement );
		controls.target.set( 0, 0, 0 );
		controls.update();

		// scene
		var scene, group, mat, floor, light;

		scene = new THREE.Scene();
		scene.background = new THREE.Color( 0x444444 );
		group = new THREE.Group();
		floor = new THREE.Mesh( new THREE.BoxBufferGeometry( 100, 1, 100 ), new THREE.MeshPhongMaterial( {} ) );
		floor.position.y = - 10;
		light = new THREE.PointLight( 0xffffff, 1.0, 50, 2 );
		light.position.y = 2;
		group.add( floor, light );
		scene.add( group );

		mat = new THREE.ShaderMaterial( {

			uniforms: {},

			vertexShader: [
				"varying vec2 vUV;",
				"varying vec3 vNormal;",

				"void main() {",

				"vUV = uv;",
				"vNormal = vec3( normal );",
				"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",

				"}"
			].join( "\n" ),

			fragmentShader: [
				"varying vec2 vUV;",
				"varying vec3 vNormal;",

				"void main() {",

				"vec4 c = vec4( abs( vNormal ) + vec3( vUV, 0.0 ), 0.0 );",
				"gl_FragColor = c;",

				"}"
			].join( "\n" )
		} );

		for ( var i = 0; i < 50; ++ i ) {

			// fill scene with coloured cubes
			var mesh = new THREE.Mesh( new THREE.BoxBufferGeometry( 2, 2, 2 ), mat );
			mesh.position.set( Math.random() * 16 - 8, Math.random() * 16 - 8, Math.random() * 16 - 8 );
			mesh.rotation.set( Math.random() * Math.PI * 2, Math.random() * Math.PI * 2, Math.random() * Math.PI * 2 );
			group.add( mesh );

		}

		// post-processing
		var composer, renderPass, halftonePass, params;

		composer = new THREE.EffectComposer( renderer );
		renderPass = new THREE.RenderPass( scene, camera );
		params = {
			shape: 1,
			radius: 4,
			rotateR: Math.PI / 12,
			rotateB: Math.PI / 12 * 2,
			rotateG: Math.PI / 12 * 3,
			scatter: 0,
			blending: 1,
			blendingMode: 1,
			greyscale: false,
			disable: false
		};
		halftonePass = new THREE.HalftonePass( window.innerWidth, window.innerHeight, params );
		halftonePass.renderToScreen = true;
		composer.addPass( renderPass );
		composer.addPass( halftonePass );

		window.onresize = function () {

			// resize composer
			renderer.setSize( window.innerWidth, window.innerHeight );
			composer.setSize( window.innerWidth, window.innerHeight );
			camera.aspect = window.innerWidth / window.innerHeight;
			camera.updateProjectionMatrix();

		};

		// GUI
		var controller, gui, onGUIChange;

		controller = {
			radius: halftonePass.uniforms.radius.value,
			rotateR: halftonePass.uniforms.rotateR.value / ( Math.PI / 180 ),
			rotateG: halftonePass.uniforms.rotateG.value / ( Math.PI / 180 ),
			rotateB: halftonePass.uniforms.rotateB.value / ( Math.PI / 180 ),
			scatter: halftonePass.uniforms.scatter.value,
			shape: halftonePass.uniforms.shape.value,
			greyscale: halftonePass.uniforms.greyscale.value,
			blending: halftonePass.uniforms.blending.value,
			blendingMode: halftonePass.uniforms.blendingMode.value,
			disable: halftonePass.uniforms.disable.value
		};

		onGUIChange = function () {

			// update uniforms
			halftonePass.uniforms.radius.value = controller.radius;
			halftonePass.uniforms.rotateR.value = controller.rotateR * ( Math.PI / 180 );
			halftonePass.uniforms.rotateG.value = controller.rotateG * ( Math.PI / 180 );
			halftonePass.uniforms.rotateB.value = controller.rotateB * ( Math.PI / 180 );
			halftonePass.uniforms.scatter.value = controller.scatter;
			halftonePass.uniforms.shape.value = controller.shape;
			halftonePass.uniforms.greyscale.value = controller.greyscale;
			halftonePass.uniforms.blending.value = controller.blending;
			halftonePass.uniforms.blendingMode.value = controller.blendingMode;
			halftonePass.uniforms.disable.value = controller.disable;

		};

		gui = new dat.GUI();
		gui.add( controller, 'shape', { 'Dot': 1, 'Ellipse': 2, 'Line': 3, 'Square': 4 } ).onChange( onGUIChange );
		gui.add( controller, 'radius', 1, 25 ).onChange( onGUIChange );
		gui.add( controller, 'rotateR', 0, 90 ).onChange( onGUIChange );
		gui.add( controller, 'rotateG', 0, 90 ).onChange( onGUIChange );
		gui.add( controller, 'rotateB', 0, 90 ).onChange( onGUIChange );
		gui.add( controller, 'scatter', 0, 1, 0.01 ).onChange( onGUIChange );
		gui.add( controller, 'greyscale' ).onChange( onGUIChange );
		gui.add( controller, 'blending', 0, 1, 0.01 ).onChange( onGUIChange );
		gui.add( controller, 'blendingMode', { 'Linear': 1, 'Multiply': 2, 'Add': 3, 'Lighter': 4, 'Darker': 5 } ).onChange( onGUIChange );
		gui.add( controller, 'disable' ).onChange( onGUIChange );

		function loop() {

			// demo loop
			var delta = clock.getDelta();
			requestAnimationFrame( loop );
			stats.update();
			group.rotation.y += delta * rotationSpeed;
			composer.render( delta );

		}

		loop();


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