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


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - materials - shaders [custom]</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>

		<div id="container"></div>
		<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - shader material demo. featuring <a href="http://www.pouet.net/prod.php?which=52761" target="_blank" rel="noopener">Monjori by Mic</a></div>

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

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

		<script id="fragment_shader4" type="x-shader/x-fragment">

			uniform float time;

			varying vec2 vUv;

			void main( void ) {

				vec2 position = - 1.0 + 2.0 * vUv;

				float red = abs( sin( position.x * position.y + time / 5.0 ) );
				float green = abs( sin( position.x * position.y + time / 4.0 ) );
				float blue = abs( sin( position.x * position.y + time / 3.0 ) );
				gl_FragColor = vec4( red, green, blue, 1.0 );

			}

		</script>

		<script id="fragment_shader3" type="x-shader/x-fragment">

			uniform float time;

			varying vec2 vUv;

			void main( void ) {

				vec2 position = vUv;

				float color = 0.0;
				color += sin( position.x * cos( time / 15.0 ) * 80.0 ) + cos( position.y * cos( time / 15.0 ) * 10.0 );
				color += sin( position.y * sin( time / 10.0 ) * 40.0 ) + cos( position.x * sin( time / 25.0 ) * 40.0 );
				color += sin( position.x * sin( time / 5.0 ) * 10.0 ) + sin( position.y * sin( time / 35.0 ) * 80.0 );
				color *= sin( time / 10.0 ) * 0.5;

				gl_FragColor = vec4( vec3( color, color * 0.5, sin( color + time / 3.0 ) * 0.75 ), 1.0 );

			}

		</script>

		<script id="fragment_shader2" type="x-shader/x-fragment">

			uniform float time;

			uniform sampler2D texture;

			varying vec2 vUv;

			void main( void ) {

				vec2 position = - 1.0 + 2.0 * vUv;

				float a = atan( position.y, position.x );
				float r = sqrt( dot( position, position ) );

				vec2 uv;
				uv.x = cos( a ) / r;
				uv.y = sin( a ) / r;
				uv /= 10.0;
				uv += time * 0.05;

				vec3 color = texture2D( texture, uv ).rgb;

				gl_FragColor = vec4( color * r * 1.5, 1.0 );

			}
		</script>

		<script id="fragment_shader1" type="x-shader/x-fragment">

			uniform float time;

			varying vec2 vUv;

			void main(void) {

				vec2 p = - 1.0 + 2.0 * vUv;
				float a = time * 40.0;
				float d, e, f, g = 1.0 / 40.0 ,h ,i ,r ,q;

				e = 400.0 * ( p.x * 0.5 + 0.5 );
				f = 400.0 * ( p.y * 0.5 + 0.5 );
				i = 200.0 + sin( e * g + a / 150.0 ) * 20.0;
				d = 200.0 + cos( f * g / 2.0 ) * 18.0 + cos( e * g ) * 7.0;
				r = sqrt( pow( abs( i - e ), 2.0 ) + pow( abs( d - f ), 2.0 ) );
				q = f / r;
				e = ( r * cos( q ) ) - a / 2.0;
				f = ( r * sin( q ) ) - a / 2.0;
				d = sin( e * g ) * 176.0 + sin( e * g ) * 164.0 + r;
				h = ( ( f + d ) + a / 2.0 ) * g;
				i = cos( h + r * p.x / 1.3 ) * ( e + e + a ) + cos( q * g * 6.0 ) * ( r + h / 3.0 );
				h = sin( f * g ) * 144.0 - sin( e * g ) * 212.0 * p.x;
				h = ( h + ( f - e ) * q + sin( r - ( a + h ) / 7.0 ) * 10.0 + i / 4.0 ) * g;
				i += cos( h * 2.3 * sin( a / 350.0 - q ) ) * 184.0 * sin( q - ( r * 4.3 + a / 12.0 ) * g ) + tan( r * g + h ) * 184.0 * cos( r * g + h );
				i = mod( i / 5.6, 256.0 ) / 64.0;
				if ( i < 0.0 ) i += 4.0;
				if ( i >= 2.0 ) i = 4.0 - i;
				d = r / 350.0;
				d += sin( d * d * 8.0 ) * 0.52;
				f = ( sin( a * g ) + 1.0 ) / 2.0;
				gl_FragColor = vec4( vec3( f * i / 1.6, i / 2.0 + d / 13.0, i ) * d * p.x + vec3( i / 1.3 + d / 8.0, i / 2.0 + d / 18.0, i ) * d * ( 1.0 - p.x ), 1.0 );

			}

		</script>

		<script id="vertexShader" type="x-shader/x-vertex">

			varying vec2 vUv;

			void main()
			{
				vUv = uv;
				vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
				gl_Position = projectionMatrix * mvPosition;
			}

		</script>

		<script>

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

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

			}

			var container, stats;

			var camera, scene, renderer, clock;

			var uniforms1, uniforms2;

			init();
			animate();

			function init() {

				container = document.getElementById( 'container' );

				camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 3000 );
				camera.position.z = 4;

				scene = new THREE.Scene();

				clock = new THREE.Clock();

				var geometry = new THREE.BoxBufferGeometry( 0.75, 0.75, 0.75 );

				uniforms1 = {
					"time": { value: 1.0 }
				};

				uniforms2 = {
					"time": { value: 1.0 },
					"texture": { value: new THREE.TextureLoader().load( 'textures/disturb.jpg' ) }
				};

				uniforms2[ "texture" ].value.wrapS = uniforms2[ "texture" ].value.wrapT = THREE.RepeatWrapping;

				var params = [
					[ 'fragment_shader1', uniforms1 ],
					[ 'fragment_shader2', uniforms2 ],
					[ 'fragment_shader3', uniforms1 ],
					[ 'fragment_shader4', uniforms1 ]
				];

				for ( var i = 0; i < params.length; i ++ ) {

					var material = new THREE.ShaderMaterial( {

						uniforms: params[ i ][ 1 ],
						vertexShader: document.getElementById( 'vertexShader' ).textContent,
						fragmentShader: document.getElementById( params[ i ][ 0 ] ).textContent

					} );

					var mesh = new THREE.Mesh( geometry, material );
					mesh.position.x = i - ( params.length - 1 ) / 2;
					mesh.position.y = i % 2 - 0.5;
					scene.add( mesh );

				}

				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				container.appendChild( renderer.domElement );

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

				onWindowResize();

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

			}

			function onWindowResize() {

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

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

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				var delta = clock.getDelta();

				uniforms1[ "time" ].value += delta * 5;
				uniforms2[ "time" ].value = clock.elapsedTime;

				for ( var i = 0; i < scene.children.length; i ++ ) {

					var object = scene.children[ i ];

					object.rotation.y += delta * 0.5 * ( i % 2 ? 1 : - 1 );
					object.rotation.x += delta * 0.5 * ( i % 2 ? - 1 : 1 );

				}

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>