javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<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>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import Stats from './jsm/libs/stats.module.js';

			import { GUI } from './jsm/libs/dat.gui.module.js';
			import { OrbitControls } from './jsm/controls/OrbitControls.js';
			import { Water } from './jsm/objects/Water.js';
			import { Sky } from './jsm/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 );
				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;

						} ),
						alpha: 1.0,
						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 = {
					inclination: 0.49,
					azimuth: 0.205
				};

				const pmremGenerator = new THREE.PMREMGenerator( renderer );

				function updateSun() {

					const theta = Math.PI * ( parameters.inclination - 0.5 );
					const phi = 2 * Math.PI * ( parameters.azimuth - 0.5 );

					sun.x = Math.cos( phi );
					sun.y = Math.sin( phi ) * Math.sin( theta );
					sun.z = Math.sin( phi ) * Math.cos( theta );

					sky.material.uniforms[ 'sunPosition' ].value.copy( sun );
					water.material.uniforms[ 'sunDirection' ].value.copy( sun ).normalize();

					scene.environment = pmremGenerator.fromScene( sky ).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, 'inclination', 0, 0.5, 0.0001 ).onChange( updateSun );
				folderSky.add( parameters, 'azimuth', 0, 1, 0.0001 ).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.add( waterUniforms.alpha, 'value', 0.9, 1, .001 ).name( 'alpha' );
				folderWater.open();

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			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>
</html>