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254 lines
6.0 KiB
254 lines
6.0 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - shaders - ocean</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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color: #000;
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font-family:Monospace;
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font-size:13px;
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margin: 0px;
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overflow: hidden;
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}
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#info {
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position: absolute;
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top: 0px; width: 100%;
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text-align:center;
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padding: 5px;
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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="container"></div>
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<div id="info">
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<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl ocean
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</div>
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<script src="../build/three.js"></script>
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<script src="js/controls/OrbitControls.js"></script>
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<script src="js/objects/Water.js"></script>
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<script src="js/objects/Sky.js"></script>
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<script src="js/WebGL.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>
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if ( WEBGL.isWebGLAvailable() === false ) {
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document.body.appendChild( WEBGL.getWebGLErrorMessage() );
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}
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var container, stats;
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var camera, scene, renderer, light;
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var controls, water, sphere;
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init();
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animate();
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function init() {
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container = document.getElementById( 'container' );
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//
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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//
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scene = new THREE.Scene();
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//
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camera = new THREE.PerspectiveCamera( 55, window.innerWidth / window.innerHeight, 1, 20000 );
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camera.position.set( 30, 30, 100 );
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//
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light = new THREE.DirectionalLight( 0xffffff, 0.8 );
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scene.add( light );
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// Water
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var waterGeometry = new THREE.PlaneBufferGeometry( 10000, 10000 );
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water = new THREE.Water(
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waterGeometry,
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{
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textureWidth: 512,
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textureHeight: 512,
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waterNormals: new THREE.TextureLoader().load( 'textures/waternormals.jpg', function ( texture ) {
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texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
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} ),
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alpha: 1.0,
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sunDirection: light.position.clone().normalize(),
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sunColor: 0xffffff,
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waterColor: 0x001e0f,
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distortionScale: 3.7,
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fog: scene.fog !== undefined
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}
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);
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water.rotation.x = - Math.PI / 2;
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scene.add( water );
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// Skybox
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var sky = new THREE.Sky();
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var uniforms = sky.material.uniforms;
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uniforms[ 'turbidity' ].value = 10;
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uniforms[ 'rayleigh' ].value = 2;
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uniforms[ 'luminance' ].value = 1;
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uniforms[ 'mieCoefficient' ].value = 0.005;
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uniforms[ 'mieDirectionalG' ].value = 0.8;
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var parameters = {
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distance: 400,
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inclination: 0.49,
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azimuth: 0.205
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};
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var cubeCamera = new THREE.CubeCamera( 0.1, 1, 512 );
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cubeCamera.renderTarget.texture.generateMipmaps = true;
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cubeCamera.renderTarget.texture.minFilter = THREE.LinearMipMapLinearFilter;
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scene.background = cubeCamera.renderTarget;
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function updateSun() {
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var theta = Math.PI * ( parameters.inclination - 0.5 );
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var phi = 2 * Math.PI * ( parameters.azimuth - 0.5 );
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light.position.x = parameters.distance * Math.cos( phi );
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light.position.y = parameters.distance * Math.sin( phi ) * Math.sin( theta );
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light.position.z = parameters.distance * Math.sin( phi ) * Math.cos( theta );
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sky.material.uniforms[ 'sunPosition' ].value = light.position.copy( light.position );
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water.material.uniforms[ 'sunDirection' ].value.copy( light.position ).normalize();
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cubeCamera.update( renderer, sky );
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}
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updateSun();
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//
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var geometry = new THREE.IcosahedronBufferGeometry( 20, 1 );
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var count = geometry.attributes.position.count;
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var colors = [];
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var color = new THREE.Color();
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for ( var i = 0; i < count; i += 3 ) {
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color.setHex( Math.random() * 0xffffff );
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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colors.push( color.r, color.g, color.b );
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}
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geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( colors, 3 ) );
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var material = new THREE.MeshStandardMaterial( {
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vertexColors: THREE.VertexColors,
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roughness: 0.0,
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flatShading: true,
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envMap: cubeCamera.renderTarget.texture,
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side: THREE.DoubleSide
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} );
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sphere = new THREE.Mesh( geometry, material );
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scene.add( sphere );
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//
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controls = new THREE.OrbitControls( camera, renderer.domElement );
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controls.maxPolarAngle = Math.PI * 0.495;
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controls.target.set( 0, 10, 0 );
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controls.minDistance = 40.0;
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controls.maxDistance = 200.0;
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controls.update();
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//
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stats = new Stats();
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container.appendChild( stats.dom );
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// GUI
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var gui = new dat.GUI();
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var folder = gui.addFolder( 'Sky' );
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folder.add( parameters, 'inclination', 0, 0.5, 0.0001 ).onChange( updateSun );
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folder.add( parameters, 'azimuth', 0, 1, 0.0001 ).onChange( updateSun );
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folder.open();
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var uniforms = water.material.uniforms;
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var folder = gui.addFolder( 'Water' );
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folder.add( uniforms.distortionScale, 'value', 0, 8, 0.1 ).name( 'distortionScale' );
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folder.add( uniforms.size, 'value', 0.1, 10, 0.1 ).name( 'size' );
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folder.add( uniforms.alpha, 'value', 0.9, 1, .001 ).name( 'alpha' );
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folder.open();
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//
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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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var time = performance.now() * 0.001;
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sphere.position.y = Math.sin( time ) * 20 + 5;
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sphere.rotation.x = time * 0.5;
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sphere.rotation.z = time * 0.51;
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water.material.uniforms[ 'time' ].value += 1.0 / 60.0;
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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