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290 lines
7.3 KiB
290 lines
7.3 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - postprocessing backgrounds</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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margin: 0px;
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background-color: #000;
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overflow: hidden;
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font-family:Monospace;
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font-size:13px;
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margin: 0px;
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text-align:center;
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overflow: hidden;
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}
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a { color: #88f; }
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#info {
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color: #fff;
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position: absolute;
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top: 10px;
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width: 100%;
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text-align: center;
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display:block;
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}
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</style>
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</head>
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<body>
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<div id="info">
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<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - Backgrounds: ClearPass, TexturePass and CubeTexturePass by <a href="https://clara.io" target="_blank" rel="noopener">Ben Houston</a>
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</div>
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<div id="container"></div>
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<script src="../build/three.js"></script>
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<script src="js/libs/stats.min.js"></script>
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<script src="js/libs/dat.gui.min.js"></script>
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<script src="js/shaders/CopyShader.js"></script>
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<script src="js/postprocessing/EffectComposer.js"></script>
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<script src="js/postprocessing/ClearPass.js"></script>
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<script src="js/postprocessing/RenderPass.js"></script>
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<script src="js/postprocessing/TexturePass.js"></script>
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<script src="js/postprocessing/CubeTexturePass.js"></script>
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<script src="js/postprocessing/ShaderPass.js"></script>
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<script src="js/controls/OrbitControls.js"></script>
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<script>
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var scene, renderer, composer;
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var clearPass, texturePass, renderPass;
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var cameraP, cubeTexturePassP;
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//var cameraO, cubeTexturePassO;
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var gui, stats;
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var params = {
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clearPass: true,
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clearColor: 'white',
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clearAlpha: 1.0,
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texturePass: true,
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texturePassOpacity: 1.0,
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cubeTexturePass: true,
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cubeTexturePassOpacity: 1.0,
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renderPass: true
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//autoRotate: true,
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//camera: 'perspective'
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};
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init();
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animate();
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clearGui();
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function clearGui() {
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if ( gui ) gui.destroy();
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gui = new dat.GUI();
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gui.add( params, "clearPass" );
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gui.add( params, "clearColor", [ 'black', 'white', 'blue', 'green', 'red' ] );
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gui.add( params, "clearAlpha", 0, 1 );
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gui.add( params, "texturePass" );
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gui.add( params, "texturePassOpacity", 0, 1 );
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gui.add( params, "cubeTexturePass" );
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gui.add( params, "cubeTexturePassOpacity", 0, 1 );
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gui.add( params, "renderPass" );
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//gui.add( params, "autoRotate" );
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//gui.add( params, 'camera', [ 'perspective', 'orthographic' ] );
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gui.open();
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}
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function init() {
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var container = document.getElementById( "container" );
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var width = window.innerWidth || 1;
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var height = window.innerHeight || 1;
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var aspect = width / height;
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var devicePixelRatio = window.devicePixelRatio || 1;
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( devicePixelRatio );
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renderer.setSize( width, height );
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document.body.appendChild( renderer.domElement );
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stats = new Stats();
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container.appendChild( stats.dom );
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//
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cameraP = new THREE.PerspectiveCamera( 65, aspect, 1, 10 );
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cameraP.position.z = 7;
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// cameraO = new THREE.OrthographicCamera( width / - 2, width / 2, height / 2, height / - 2, 3, 10 );
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// cameraO.position.z = 7;
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// var fov = THREE.Math.degToRad( cameraP.fov );
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// var hyperfocus = ( cameraP.near + cameraP.far ) / 2;
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// var _height = 2 * Math.tan( fov / 2 ) * hyperfocus;
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// cameraO.zoom = height / _height;
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scene = new THREE.Scene();
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var group = new THREE.Group();
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scene.add( group );
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var light = new THREE.PointLight( 0xddffdd, 1.0 );
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light.position.z = 70;
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light.position.y = - 70;
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light.position.x = - 70;
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scene.add( light );
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var light2 = new THREE.PointLight( 0xffdddd, 1.0 );
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light2.position.z = 70;
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light2.position.x = - 70;
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light2.position.y = 70;
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scene.add( light2 );
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var light3 = new THREE.PointLight( 0xddddff, 1.0 );
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light3.position.z = 70;
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light3.position.x = 70;
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light3.position.y = - 70;
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scene.add( light3 );
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var geometry = new THREE.SphereBufferGeometry( 1, 48, 24 );
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var material = new THREE.MeshStandardMaterial();
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material.roughness = 0.5 * Math.random() + 0.25;
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material.metalness = 0;
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material.color.setHSL( Math.random(), 1.0, 0.3 );
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var mesh = new THREE.Mesh( geometry, material );
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group.add( mesh );
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// postprocessing
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var genCubeUrls = function ( prefix, postfix ) {
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return [
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prefix + 'px' + postfix, prefix + 'nx' + postfix,
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prefix + 'py' + postfix, prefix + 'ny' + postfix,
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prefix + 'pz' + postfix, prefix + 'nz' + postfix
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];
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};
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composer = new THREE.EffectComposer( renderer );
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clearPass = new THREE.ClearPass( params.clearColor, params.clearAlpha );
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composer.addPass( clearPass );
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texturePass = new THREE.TexturePass();
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composer.addPass( texturePass );
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var textureLoader = new THREE.TextureLoader();
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textureLoader.load( "textures/hardwood2_diffuse.jpg", function ( map ) {
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texturePass.map = map;
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} );
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cubeTexturePassP = new THREE.CubeTexturePass( cameraP );
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composer.addPass( cubeTexturePassP );
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var ldrUrls = genCubeUrls( "textures/cube/pisa/", ".png" );
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new THREE.CubeTextureLoader().load( ldrUrls, function ( ldrCubeMap ) {
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cubeTexturePassP.envMap = ldrCubeMap;
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console.log( "loaded envmap" );
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} );
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renderPass = new THREE.RenderPass( scene, cameraP );
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renderPass.clear = false;
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composer.addPass( renderPass );
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var copyPass = new THREE.ShaderPass( THREE.CopyShader );
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composer.addPass( copyPass );
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var controls = new THREE.OrbitControls( cameraP, renderer.domElement );
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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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var width = window.innerWidth;
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var height = window.innerHeight;
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var aspect = width / height;
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cameraP.aspect = aspect;
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cameraP.updateProjectionMatrix();
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/*cameraO.left = - height * aspect;
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cameraO.right = height * aspect;
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cameraO.top = height;
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cameraO.bottom = - height;
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cameraO.updateProjectionMatrix();*/
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renderer.setSize( width, height );
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var pixelRatio = renderer.getPixelRatio();
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var newWidth = Math.floor( width / pixelRatio ) || 1;
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var newHeight = Math.floor( height / pixelRatio ) || 1;
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composer.setSize( newWidth, newHeight );
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}
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function animate() {
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requestAnimationFrame( animate );
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stats.begin();
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cameraP.updateMatrixWorld( true );
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var newColor = clearPass.clearColor;
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switch ( params.clearColor ) {
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case 'blue': newColor = 0x0000ff; break;
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case 'red': newColor = 0xff0000; break;
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case 'green': newColor = 0x00ff00; break;
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case 'white': newColor = 0xffffff; break;
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case 'black': newColor = 0x000000; break;
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}
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clearPass.enabled = params.clearPass;
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clearPass.clearColor = newColor;
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clearPass.clearAlpha = params.clearAlpha;
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texturePass.enabled = params.texturePass;
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texturePass.opacity = params.texturePassOpacity;
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cubeTexturePassP.enabled = params.cubeTexturePass;
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cubeTexturePassP.opacity = params.cubeTexturePassOpacity;
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renderPass.enabled = params.renderPass;
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composer.render();
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stats.end();
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}
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</script>
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</body>
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</html>
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