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<!DOCTYPE html><html lang="en"><head>
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<meta charset="utf-8">
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<title>WebGL Compatibility Check</title>
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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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<meta name="twitter:card" content="summary_large_image">
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<meta name="twitter:site" content="@threejs">
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<meta name="twitter:title" content="Three.js – WebGL Compatibility Check">
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<meta property="og:image" content="https://threejs.org/files/share.png">
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<link rel="shortcut icon" href="../../files/favicon_white.ico" media="(prefers-color-scheme: dark)">
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<link rel="shortcut icon" href="../../files/favicon.ico" media="(prefers-color-scheme: light)">
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<link rel="stylesheet" href="../resources/lesson.css">
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<link rel="stylesheet" href="../resources/lang.css">
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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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</head>
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<body>
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<div class="container">
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<div class="lesson-title">
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<h1>WebGL Compatibility Check</h1>
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</div>
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<div class="lesson">
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<div class="lesson-main">
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<p>
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Even though this is becoming less and less of a problem, some devices or browsers may still not support WebGL 2.
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The following method allows you to check if it is supported and display a message to the user if it is not.
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Import the WebGL support detection module, and run the following before attempting to render anything.
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</p>
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<pre class="prettyprint notranslate lang-js" translate="no">
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import WebGL from 'three/addons/capabilities/WebGL.js';
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if ( WebGL.isWebGL2Available() ) {
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// Initiate function or other initializations here
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animate();
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} else {
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const warning = WebGL.getWebGL2ErrorMessage();
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document.getElementById( 'container' ).appendChild( warning );
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}
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</pre>
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</div>
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</div>
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</div>
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<script src="../resources/prettify.js"></script>
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<script src="../resources/lesson.js"></script>
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</body></html>
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