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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>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.3.6/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 { OrbitControls } from 'three/addons/controls/OrbitControls.js';
let camera, controls;
let renderer;
let scene;
init();
animate();
function init() {
const 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;
const textures = getTexturesFromAtlasFile( 'textures/cube/sun_temple_stripe.jpg', 6 );
const materials = [];
for ( let i = 0; i < 6; i ++ ) {
materials.push( new THREE.MeshBasicMaterial( { map: textures[ i ] } ) );
}
const skyBox = new THREE.Mesh( new THREE.BoxGeometry( 1, 1, 1 ), materials );
skyBox.geometry.scale( 1, 1, - 1 );
scene.add( skyBox );
window.addEventListener( 'resize', onWindowResize );
}
function getTexturesFromAtlasFile( atlasImgUrl, tilesNum ) {
const textures = [];
for ( let i = 0; i < tilesNum; i ++ ) {
textures[ i ] = new THREE.Texture();
}
new THREE.ImageLoader()
.load( atlasImgUrl, ( image ) => {
let canvas, context;
const tileWidth = image.height;
for ( let i = 0; i < textures.length; i ++ ) {
canvas = document.createElement( 'canvas' );
context = canvas.getContext( '2d' );
canvas.height = tileWidth;
canvas.width = tileWidth;
context.drawImage( image, tileWidth * i, 0, tileWidth, tileWidth, 0, 0, tileWidth, tileWidth );
textures[ i ].image = canvas;
textures[ i ].needsUpdate = true;
}
} );
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>