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134 lines
3.2 KiB
134 lines
3.2 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - panorama</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
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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 - cube panorama demo
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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 { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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let camera, controls;
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let renderer;
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let scene;
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init();
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animate();
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function init() {
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const container = document.getElementById( 'container' );
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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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container.appendChild( renderer.domElement );
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scene = new THREE.Scene();
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camera = new THREE.PerspectiveCamera( 90, window.innerWidth / window.innerHeight, 0.1, 100 );
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camera.position.z = 0.01;
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controls = new OrbitControls( camera, renderer.domElement );
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controls.enableZoom = false;
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controls.enablePan = false;
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controls.enableDamping = true;
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controls.rotateSpeed = - 0.25;
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const textures = getTexturesFromAtlasFile( 'textures/cube/sun_temple_stripe.jpg', 6 );
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const materials = [];
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for ( let i = 0; i < 6; i ++ ) {
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materials.push( new THREE.MeshBasicMaterial( { map: textures[ i ] } ) );
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}
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const skyBox = new THREE.Mesh( new THREE.BoxGeometry( 1, 1, 1 ), materials );
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skyBox.geometry.scale( 1, 1, - 1 );
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scene.add( skyBox );
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window.addEventListener( 'resize', onWindowResize );
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}
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function getTexturesFromAtlasFile( atlasImgUrl, tilesNum ) {
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const textures = [];
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for ( let i = 0; i < tilesNum; i ++ ) {
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textures[ i ] = new THREE.Texture();
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}
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new THREE.ImageLoader()
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.load( atlasImgUrl, ( image ) => {
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let canvas, context;
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const tileWidth = image.height;
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for ( let i = 0; i < textures.length; i ++ ) {
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canvas = document.createElement( 'canvas' );
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context = canvas.getContext( '2d' );
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canvas.height = tileWidth;
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canvas.width = tileWidth;
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context.drawImage( image, tileWidth * i, 0, tileWidth, tileWidth, 0, 0, tileWidth, tileWidth );
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textures[ i ].image = canvas;
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textures[ i ].needsUpdate = true;
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}
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} );
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return textures;
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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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controls.update(); // required when damping is enabled
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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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