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293 lines
7.5 KiB
293 lines
7.5 KiB
2 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 - fly controls - earth</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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<style>
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body {
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background:#000;
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color: #eee;
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}
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a {
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color: #0080ff;
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}
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b {
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color: orange
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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="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - earth [fly controls]<br/>
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<b>WASD</b> move, <b>R|F</b> up | down, <b>Q|E</b> roll, <b>up|down</b> pitch, <b>left|right</b> yaw
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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 { FlyControls } from 'three/addons/controls/FlyControls.js';
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import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
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import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
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import { FilmPass } from 'three/addons/postprocessing/FilmPass.js';
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const radius = 6371;
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const tilt = 0.41;
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const rotationSpeed = 0.02;
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const cloudsScale = 1.005;
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const moonScale = 0.23;
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const MARGIN = 0;
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let SCREEN_HEIGHT = window.innerHeight - MARGIN * 2;
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let SCREEN_WIDTH = window.innerWidth;
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let camera, controls, scene, renderer, stats;
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let geometry, meshPlanet, meshClouds, meshMoon;
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let dirLight;
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let composer;
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const textureLoader = new THREE.TextureLoader();
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let d, dPlanet, dMoon;
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const dMoonVec = new THREE.Vector3();
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const clock = new THREE.Clock();
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init();
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animate();
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function init() {
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camera = new THREE.PerspectiveCamera( 25, SCREEN_WIDTH / SCREEN_HEIGHT, 50, 1e7 );
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camera.position.z = radius * 5;
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scene = new THREE.Scene();
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scene.fog = new THREE.FogExp2( 0x000000, 0.00000025 );
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dirLight = new THREE.DirectionalLight( 0xffffff );
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dirLight.position.set( - 1, 0, 1 ).normalize();
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scene.add( dirLight );
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const materialNormalMap = new THREE.MeshPhongMaterial( {
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specular: 0x333333,
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shininess: 15,
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map: textureLoader.load( 'textures/planets/earth_atmos_2048.jpg' ),
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specularMap: textureLoader.load( 'textures/planets/earth_specular_2048.jpg' ),
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normalMap: textureLoader.load( 'textures/planets/earth_normal_2048.jpg' ),
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// y scale is negated to compensate for normal map handedness.
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normalScale: new THREE.Vector2( 0.85, - 0.85 )
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} );
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// planet
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geometry = new THREE.SphereGeometry( radius, 100, 50 );
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meshPlanet = new THREE.Mesh( geometry, materialNormalMap );
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meshPlanet.rotation.y = 0;
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meshPlanet.rotation.z = tilt;
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scene.add( meshPlanet );
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// clouds
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const materialClouds = new THREE.MeshLambertMaterial( {
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map: textureLoader.load( 'textures/planets/earth_clouds_1024.png' ),
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transparent: true
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} );
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meshClouds = new THREE.Mesh( geometry, materialClouds );
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meshClouds.scale.set( cloudsScale, cloudsScale, cloudsScale );
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meshClouds.rotation.z = tilt;
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scene.add( meshClouds );
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// moon
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const materialMoon = new THREE.MeshPhongMaterial( {
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map: textureLoader.load( 'textures/planets/moon_1024.jpg' )
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} );
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meshMoon = new THREE.Mesh( geometry, materialMoon );
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meshMoon.position.set( radius * 5, 0, 0 );
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meshMoon.scale.set( moonScale, moonScale, moonScale );
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scene.add( meshMoon );
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// stars
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const r = radius, starsGeometry = [ new THREE.BufferGeometry(), new THREE.BufferGeometry() ];
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const vertices1 = [];
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const vertices2 = [];
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const vertex = new THREE.Vector3();
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for ( let i = 0; i < 250; i ++ ) {
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vertex.x = Math.random() * 2 - 1;
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vertex.y = Math.random() * 2 - 1;
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vertex.z = Math.random() * 2 - 1;
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vertex.multiplyScalar( r );
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vertices1.push( vertex.x, vertex.y, vertex.z );
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}
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for ( let i = 0; i < 1500; i ++ ) {
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vertex.x = Math.random() * 2 - 1;
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vertex.y = Math.random() * 2 - 1;
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vertex.z = Math.random() * 2 - 1;
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vertex.multiplyScalar( r );
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vertices2.push( vertex.x, vertex.y, vertex.z );
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}
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starsGeometry[ 0 ].setAttribute( 'position', new THREE.Float32BufferAttribute( vertices1, 3 ) );
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starsGeometry[ 1 ].setAttribute( 'position', new THREE.Float32BufferAttribute( vertices2, 3 ) );
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const starsMaterials = [
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new THREE.PointsMaterial( { color: 0x555555, size: 2, sizeAttenuation: false } ),
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new THREE.PointsMaterial( { color: 0x555555, size: 1, sizeAttenuation: false } ),
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new THREE.PointsMaterial( { color: 0x333333, size: 2, sizeAttenuation: false } ),
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new THREE.PointsMaterial( { color: 0x3a3a3a, size: 1, sizeAttenuation: false } ),
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new THREE.PointsMaterial( { color: 0x1a1a1a, size: 2, sizeAttenuation: false } ),
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new THREE.PointsMaterial( { color: 0x1a1a1a, size: 1, sizeAttenuation: false } )
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];
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for ( let i = 10; i < 30; i ++ ) {
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const stars = new THREE.Points( starsGeometry[ i % 2 ], starsMaterials[ i % 6 ] );
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stars.rotation.x = Math.random() * 6;
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stars.rotation.y = Math.random() * 6;
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stars.rotation.z = Math.random() * 6;
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stars.scale.setScalar( i * 10 );
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stars.matrixAutoUpdate = false;
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stars.updateMatrix();
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scene.add( stars );
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}
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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document.body.appendChild( renderer.domElement );
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//
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controls = new FlyControls( camera, renderer.domElement );
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controls.movementSpeed = 1000;
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controls.domElement = renderer.domElement;
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controls.rollSpeed = Math.PI / 24;
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controls.autoForward = false;
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controls.dragToLook = false;
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//
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stats = new Stats();
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document.body.appendChild( stats.dom );
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window.addEventListener( 'resize', onWindowResize );
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// postprocessing
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const renderModel = new RenderPass( scene, camera );
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const effectFilm = new FilmPass( 0.35, 0.75, 2048, false );
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composer = new EffectComposer( renderer );
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composer.addPass( renderModel );
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composer.addPass( effectFilm );
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}
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function onWindowResize() {
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SCREEN_HEIGHT = window.innerHeight;
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SCREEN_WIDTH = window.innerWidth;
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camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
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camera.updateProjectionMatrix();
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renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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composer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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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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// rotate the planet and clouds
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const delta = clock.getDelta();
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meshPlanet.rotation.y += rotationSpeed * delta;
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meshClouds.rotation.y += 1.25 * rotationSpeed * delta;
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// slow down as we approach the surface
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dPlanet = camera.position.length();
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dMoonVec.subVectors( camera.position, meshMoon.position );
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dMoon = dMoonVec.length();
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if ( dMoon < dPlanet ) {
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d = ( dMoon - radius * moonScale * 1.01 );
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} else {
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d = ( dPlanet - radius * 1.01 );
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}
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controls.movementSpeed = 0.33 * d;
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controls.update( delta );
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composer.render( delta );
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}
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</script>
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</body>
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</html>
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