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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - panorama</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
- <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 - cube panorama demo
- </div>
- <script type="module">
- import * as THREE from '../build/three.module.js';
- import { OrbitControls } from './jsm/controls/OrbitControls.js';
- var camera, controls;
- var renderer;
- var scene;
- init();
- animate();
- function init() {
- var 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( 90, window.innerWidth / window.innerHeight, 0.1, 100 );
- camera.position.z = 0.01;
- controls = new OrbitControls( camera, renderer.domElement );
- controls.enableZoom = false;
- controls.enablePan = false;
- controls.enableDamping = true;
- controls.rotateSpeed = - 0.25;
- var textures = getTexturesFromAtlasFile( "textures/cube/sun_temple_stripe.jpg", 6 );
- var materials = [];
- for ( var i = 0; i < 6; i ++ ) {
- materials.push( new THREE.MeshBasicMaterial( { map: textures[ i ] } ) );
- }
- var skyBox = new THREE.Mesh( new THREE.BoxBufferGeometry( 1, 1, 1 ), materials );
- skyBox.geometry.scale( 1, 1, - 1 );
- scene.add( skyBox );
- window.addEventListener( 'resize', onWindowResize, false );
- }
- function getTexturesFromAtlasFile( atlasImgUrl, tilesNum ) {
- var textures = [];
- for ( var i = 0; i < tilesNum; i ++ ) {
- textures[ i ] = new THREE.Texture();
- }
- var imageObj = new Image();
- imageObj.onload = function () {
- var canvas, context;
- var tileWidth = imageObj.height;
- for ( var i = 0; i < textures.length; i ++ ) {
- canvas = document.createElement( 'canvas' );
- context = canvas.getContext( '2d' );
- canvas.height = tileWidth;
- canvas.width = tileWidth;
- context.drawImage( imageObj, tileWidth * i, 0, tileWidth, tileWidth, 0, 0, tileWidth, tileWidth );
- textures[ i ].image = canvas;
- textures[ i ].needsUpdate = true;
- }
- };
- imageObj.src = atlasImgUrl;
- return textures;
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate() {
- requestAnimationFrame( animate );
- controls.update(); // required when damping is enabled
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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