gitadmin
/
three.js
mirror of https://github.com/mrdoob/three.js.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - basis texture loader</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
	</head>
	<body>

		<div id="info">
			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - webgl - basis texture loader<br />
			<a href="https://github.com/binomialLLC/basis_universal" target="_blank">Basis Universal GPU Texture Codec</a>
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import { BasisTextureLoader } from './jsm/loaders/BasisTextureLoader.js';
			import { OrbitControls } from './jsm/controls/OrbitControls.js';

			let camera, scene, renderer;
			let mesh;

			init();
			render();

			function init() {

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.outputEncoding = THREE.sRGBEncoding;
				document.body.appendChild( renderer.domElement );

				scene = new THREE.Scene();

				camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
				camera.position.set( 0, 0, 1 );
				camera.lookAt( scene.position );

				const controls = new OrbitControls( camera, renderer.domElement );
				controls.addEventListener( 'change', render );

				const geometry = flipY( new THREE.PlaneBufferGeometry() );
				const material = new THREE.MeshBasicMaterial( { side: THREE.DoubleSide } );

				mesh = new THREE.Mesh( geometry, material );

				scene.add( mesh );

				const loader = new BasisTextureLoader();
				loader.setTranscoderPath( 'js/libs/basis/' );
				loader.detectSupport( renderer );
				loader.load( 'textures/compressed/canestra_di_frutta_caravaggio.basis', function ( texture ) {

					texture.encoding = THREE.sRGBEncoding;
					material.map = texture;
					material.needsUpdate = true;

					render();

				}, undefined, function ( error ) {

					console.error( error );

				} );

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

				render();

			}

			function render() {

				renderer.render( scene, camera );

			}

			/** Correct UVs to be compatible with `flipY=false` textures. */
			function flipY( geometry ) {

				const uv = geometry.attributes.uv;

				for ( let i = 0; i < uv.count; i ++ ) {

					uv.setY( i, 1 - uv.getY( i ) );

				}

				return geometry;

			}

		</script>

	</body>
</html>