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<head>
<title>three.js webgl - shaders - ocean</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="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl ocean
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.8.0/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/libs/stats.module.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { Water } from 'three/addons/objects/Water.js';
import { Sky } from 'three/addons/objects/Sky.js';
let container, stats;
let camera, scene, renderer;
let controls, water, sun, mesh;
init();
animate();
function init() {
container = document.getElementById( 'container' );
//
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 0.5;
container.appendChild( renderer.domElement );
//
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 55, window.innerWidth / window.innerHeight, 1, 20000 );
camera.position.set( 30, 30, 100 );
//
sun = new THREE.Vector3();
// Water
const waterGeometry = new THREE.PlaneGeometry( 10000, 10000 );
water = new Water(
waterGeometry,
{
textureWidth: 512,
textureHeight: 512,
waterNormals: new THREE.TextureLoader().load( 'textures/waternormals.jpg', function ( texture ) {
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
} ),
sunDirection: new THREE.Vector3(),
sunColor: 0xffffff,
waterColor: 0x001e0f,
distortionScale: 3.7,
fog: scene.fog !== undefined
}
);
water.rotation.x = - Math.PI / 2;
scene.add( water );
// Skybox
const sky = new Sky();
sky.scale.setScalar( 10000 );
scene.add( sky );
const skyUniforms = sky.material.uniforms;
skyUniforms[ 'turbidity' ].value = 10;
skyUniforms[ 'rayleigh' ].value = 2;
skyUniforms[ 'mieCoefficient' ].value = 0.005;
skyUniforms[ 'mieDirectionalG' ].value = 0.8;
const parameters = {
elevation: 2,
azimuth: 180
};
const pmremGenerator = new THREE.PMREMGenerator( renderer );
const sceneEnv = new THREE.Scene();
let renderTarget;
function updateSun() {
const phi = THREE.MathUtils.degToRad( 90 - parameters.elevation );
const theta = THREE.MathUtils.degToRad( parameters.azimuth );
sun.setFromSphericalCoords( 1, phi, theta );
sky.material.uniforms[ 'sunPosition' ].value.copy( sun );
water.material.uniforms[ 'sunDirection' ].value.copy( sun ).normalize();
if ( renderTarget !== undefined ) renderTarget.dispose();
sceneEnv.add( sky );
renderTarget = pmremGenerator.fromScene( sceneEnv );
scene.add( sky );
scene.environment = renderTarget.texture;
}
updateSun();
//
const geometry = new THREE.BoxGeometry( 30, 30, 30 );
const material = new THREE.MeshStandardMaterial( { roughness: 0 } );
mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
//
controls = new OrbitControls( camera, renderer.domElement );
controls.maxPolarAngle = Math.PI * 0.495;
controls.target.set( 0, 10, 0 );
controls.minDistance = 40.0;
controls.maxDistance = 200.0;
controls.update();
//
stats = new Stats();
container.appendChild( stats.dom );
// GUI
const gui = new GUI();
const folderSky = gui.addFolder( 'Sky' );
folderSky.add( parameters, 'elevation', 0, 90, 0.1 ).onChange( updateSun );
folderSky.add( parameters, 'azimuth', - 180, 180, 0.1 ).onChange( updateSun );
folderSky.open();
const waterUniforms = water.material.uniforms;
const folderWater = gui.addFolder( 'Water' );
folderWater.add( waterUniforms.distortionScale, 'value', 0, 8, 0.1 ).name( 'distortionScale' );
folderWater.add( waterUniforms.size, 'value', 0.1, 10, 0.1 ).name( 'size' );
folderWater.open();
//
window.addEventListener( 'resize', onWindowResize );
}
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() {
const time = performance.now() * 0.001;
mesh.position.y = Math.sin( time ) * 20 + 5;
mesh.rotation.x = time * 0.5;
mesh.rotation.z = time * 0.51;
water.material.uniforms[ 'time' ].value += 1.0 / 60.0;
renderer.render( scene, camera );
}
</script>
</body>
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