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147 lines
4.0 KiB
147 lines
4.0 KiB
<!-- Licensed under a BSD license. See license.html for license -->
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<!DOCTYPE html>
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<html>
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<head>
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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=yes">
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<title>Three.js - Textured Cube - 6 Textures</title>
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<style>
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html, body {
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height: 100%;
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margin: 0;
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}
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#c {
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width: 100%;
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height: 100%;
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display: block;
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}
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#loading {
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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#loading .progress {
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margin: 1.5em;
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border: 1px solid white;
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width: 50vw;
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}
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#loading .progressbar {
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margin: 2px;
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background: white;
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height: 1em;
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transform-origin: top left;
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transform: scaleX(0);
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}
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</style>
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</head>
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<body>
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<canvas id="c"></canvas>
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<div id="loading">
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<div class="progress"><div class="progressbar"></div></div>
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</div>
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</body>
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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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}
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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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function main() {
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const canvas = document.querySelector('#c');
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const renderer = new THREE.WebGLRenderer({canvas});
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const fov = 75;
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const aspect = 2; // the canvas default
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const near = 0.1;
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const far = 5;
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const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
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camera.position.z = 2;
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const scene = new THREE.Scene();
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const boxWidth = 1;
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const boxHeight = 1;
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const boxDepth = 1;
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const geometry = new THREE.BoxGeometry(boxWidth, boxHeight, boxDepth);
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const cubes = []; // just an array we can use to rotate the cubes
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const loadManager = new THREE.LoadingManager();
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const loader = new THREE.TextureLoader(loadManager);
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const materials = [
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-1.jpg')}),
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-2.jpg')}),
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-3.jpg')}),
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-4.jpg')}),
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-5.jpg')}),
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new THREE.MeshBasicMaterial({map: loader.load('resources/images/flower-6.jpg')}),
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];
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const loadingElem = document.querySelector('#loading');
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const progressBarElem = loadingElem.querySelector('.progressbar');
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loadManager.onLoad = () => {
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loadingElem.style.display = 'none';
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const cube = new THREE.Mesh(geometry, materials);
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scene.add(cube);
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cubes.push(cube); // add to our list of cubes to rotate
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};
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loadManager.onProgress = (urlOfLastItemLoaded, itemsLoaded, itemsTotal) => {
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const progress = itemsLoaded / itemsTotal;
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progressBarElem.style.transform = `scaleX(${progress})`;
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};
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function resizeRendererToDisplaySize(renderer) {
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const canvas = renderer.domElement;
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const width = canvas.clientWidth;
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const height = canvas.clientHeight;
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const needResize = canvas.width !== width || canvas.height !== height;
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if (needResize) {
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renderer.setSize(width, height, false);
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}
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return needResize;
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}
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function render(time) {
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time *= 0.001;
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if (resizeRendererToDisplaySize(renderer)) {
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const canvas = renderer.domElement;
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camera.aspect = canvas.clientWidth / canvas.clientHeight;
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camera.updateProjectionMatrix();
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}
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cubes.forEach((cube, ndx) => {
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const speed = .2 + ndx * .1;
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const rot = time * speed;
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cube.rotation.x = rot;
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cube.rotation.y = rot;
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});
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renderer.render(scene, camera);
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requestAnimationFrame(render);
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}
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requestAnimationFrame(render);
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}
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main();
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</script>
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</html>
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