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webgl_water.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js - water</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 noreferrer">three.js</a> - water
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/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 { GUI } from 'three/addons/libs/lil-gui.module.min.js';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { Water } from 'three/addons/objects/Water2.js';
let scene, camera, clock, renderer, water;
let torusKnot;
const params = {
color: '#ffffff',
scale: 4,
flowX: 1,
flowY: 1
};
init();
animate();
function init() {
// scene
scene = new THREE.Scene();
// camera
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 200 );
camera.position.set( - 15, 7, 15 );
camera.lookAt( scene.position );
// clock
clock = new THREE.Clock();
// mesh
const torusKnotGeometry = new THREE.TorusKnotGeometry( 3, 1, 256, 32 );
const torusKnotMaterial = new THREE.MeshNormalMaterial();
torusKnot = new THREE.Mesh( torusKnotGeometry, torusKnotMaterial );
torusKnot.position.y = 4;
torusKnot.scale.set( 0.5, 0.5, 0.5 );
scene.add( torusKnot );
// ground
const groundGeometry = new THREE.PlaneGeometry( 20, 20 );
const groundMaterial = new THREE.MeshStandardMaterial( { roughness: 0.8, metalness: 0.4 } );
const ground = new THREE.Mesh( groundGeometry, groundMaterial );
ground.rotation.x = Math.PI * - 0.5;
scene.add( ground );
const textureLoader = new THREE.TextureLoader();
textureLoader.load( 'textures/hardwood2_diffuse.jpg', function ( map ) {
map.wrapS = THREE.RepeatWrapping;
map.wrapT = THREE.RepeatWrapping;
map.anisotropy = 16;
map.repeat.set( 4, 4 );
groundMaterial.map = map;
groundMaterial.needsUpdate = true;
} );
// water
const waterGeometry = new THREE.PlaneGeometry( 20, 20 );
water = new Water( waterGeometry, {
color: params.color,
scale: params.scale,
flowDirection: new THREE.Vector2( params.flowX, params.flowY ),
textureWidth: 1024,
textureHeight: 1024
} );
water.position.y = 1;
water.rotation.x = Math.PI * - 0.5;
scene.add( water );
// skybox
const cubeTextureLoader = new THREE.CubeTextureLoader();
cubeTextureLoader.setPath( 'textures/cube/Park2/' );
const cubeTexture = cubeTextureLoader.load( [
'posx.jpg', 'negx.jpg',
'posy.jpg', 'negy.jpg',
'posz.jpg', 'negz.jpg'
] );
scene.background = cubeTexture;
// light
const ambientLight = new THREE.AmbientLight( 0xcccccc, 0.4 );
scene.add( ambientLight );
const directionalLight = new THREE.DirectionalLight( 0xffffff, 0.6 );
directionalLight.position.set( - 1, 1, 1 );
scene.add( directionalLight );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setPixelRatio( window.devicePixelRatio );
document.body.appendChild( renderer.domElement );
// gui
const gui = new GUI();
gui.addColor( params, 'color' ).onChange( function ( value ) {
water.material.uniforms[ 'color' ].value.set( value );
} );
gui.add( params, 'scale', 1, 10 ).onChange( function ( value ) {
water.material.uniforms[ 'config' ].value.w = value;
} );
gui.add( params, 'flowX', - 1, 1 ).step( 0.01 ).onChange( function ( value ) {
water.material.uniforms[ 'flowDirection' ].value.x = value;
water.material.uniforms[ 'flowDirection' ].value.normalize();
} );
gui.add( params, 'flowY', - 1, 1 ).step( 0.01 ).onChange( function ( value ) {
water.material.uniforms[ 'flowDirection' ].value.y = value;
water.material.uniforms[ 'flowDirection' ].value.normalize();
} );
gui.open();
//
const controls = new OrbitControls( camera, renderer.domElement );
controls.minDistance = 5;
controls.maxDistance = 50;
//
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();
}
function render() {
const delta = clock.getDelta();
torusKnot.rotation.x += delta;
torusKnot.rotation.y += delta * 0.5;
renderer.render( scene, camera );
}
</script>
</body>
</html>