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215 lines
5.2 KiB
215 lines
5.2 KiB
3 years ago
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<!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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<link type="text/css" rel="stylesheet" href="main.css">
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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="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl ocean
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import Stats from 'three/addons/libs/stats.module.js';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { Water } from 'three/addons/objects/Water.js';
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import { Sky } from 'three/addons/objects/Sky.js';
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let container, stats;
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let camera, scene, renderer;
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let controls, water, sun, mesh;
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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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renderer.toneMapping = THREE.ACESFilmicToneMapping;
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container.appendChild( renderer.domElement );
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//
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scene = new THREE.Scene();
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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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sun = new THREE.Vector3();
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// Water
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const waterGeometry = new THREE.PlaneGeometry( 10000, 10000 );
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water = new 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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sunDirection: new THREE.Vector3(),
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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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const sky = new Sky();
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sky.scale.setScalar( 10000 );
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scene.add( sky );
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const skyUniforms = sky.material.uniforms;
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skyUniforms[ 'turbidity' ].value = 10;
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skyUniforms[ 'rayleigh' ].value = 2;
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skyUniforms[ 'mieCoefficient' ].value = 0.005;
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skyUniforms[ 'mieDirectionalG' ].value = 0.8;
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const parameters = {
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elevation: 2,
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azimuth: 180
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};
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const pmremGenerator = new THREE.PMREMGenerator( renderer );
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let renderTarget;
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function updateSun() {
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const phi = THREE.MathUtils.degToRad( 90 - parameters.elevation );
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const theta = THREE.MathUtils.degToRad( parameters.azimuth );
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sun.setFromSphericalCoords( 1, phi, theta );
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sky.material.uniforms[ 'sunPosition' ].value.copy( sun );
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water.material.uniforms[ 'sunDirection' ].value.copy( sun ).normalize();
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if ( renderTarget !== undefined ) renderTarget.dispose();
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renderTarget = pmremGenerator.fromScene( sky );
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scene.environment = renderTarget.texture;
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}
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updateSun();
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//
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const geometry = new THREE.BoxGeometry( 30, 30, 30 );
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const material = new THREE.MeshStandardMaterial( { roughness: 0 } );
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mesh = new THREE.Mesh( geometry, material );
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scene.add( mesh );
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//
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controls = new 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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const gui = new GUI();
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const folderSky = gui.addFolder( 'Sky' );
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folderSky.add( parameters, 'elevation', 0, 90, 0.1 ).onChange( updateSun );
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folderSky.add( parameters, 'azimuth', - 180, 180, 0.1 ).onChange( updateSun );
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folderSky.open();
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const waterUniforms = water.material.uniforms;
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const folderWater = gui.addFolder( 'Water' );
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folderWater.add( waterUniforms.distortionScale, 'value', 0, 8, 0.1 ).name( 'distortionScale' );
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folderWater.add( waterUniforms.size, 'value', 0.1, 10, 0.1 ).name( 'size' );
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folderWater.open();
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//
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window.addEventListener( 'resize', onWindowResize );
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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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const time = performance.now() * 0.001;
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mesh.position.y = Math.sin( time ) * 20 + 5;
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mesh.rotation.x = time * 0.5;
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mesh.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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