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119 lines
2.6 KiB
119 lines
2.6 KiB
3 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 - materials - RGBM texture loader</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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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl RGBM texture loader example
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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 { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { RGBMLoader } from 'three/addons/loaders/RGBMLoader.js';
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const params = {
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exposure: 2.0
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};
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let renderer, scene, camera;
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init();
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function init() {
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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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document.body.appendChild( renderer.domElement );
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renderer.toneMapping = THREE.ReinhardToneMapping;
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renderer.toneMappingExposure = params.exposure;
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renderer.outputEncoding = THREE.sRGBEncoding;
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scene = new THREE.Scene();
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const aspect = window.innerWidth / window.innerHeight;
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camera = new THREE.OrthographicCamera( - aspect, aspect, 1, - 1, 0, 1 );
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new RGBMLoader().setMaxRange( 16 ).load( 'textures/memorial.png', function ( texture ) {
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const material = new THREE.MeshBasicMaterial( { map: texture } );
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const quad = new THREE.PlaneGeometry( 1, 1.5 );
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const mesh = new THREE.Mesh( quad, material );
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scene.add( mesh );
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render();
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} );
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//
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const gui = new GUI();
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gui.add( params, 'exposure', 0, 4, 0.01 ).onChange( render );
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gui.open();
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//
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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const aspect = window.innerWidth / window.innerHeight;
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const frustumHeight = camera.top - camera.bottom;
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camera.left = - frustumHeight * aspect / 2;
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camera.right = frustumHeight * aspect / 2;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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render();
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}
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//
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function render() {
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renderer.toneMappingExposure = params.exposure;
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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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