The WEBGL_lose_context extension is part of the WebGL API and exposes functions to simulate losing and restoring a WebGLRenderingContext
.
WebGL extensions are available using the WebGLRenderingContext.getExtension()
method. For more information, see also Using Extensions in the WebGL tutorial.
Methods
WEBGL_lose_context.loseContext()
- Simulates losing the context.
WEBGL_lose_context.restoreContext()
- Simulates restoring the context.
Examples
With this extension, you can simulate the webglcontextlost
and webglcontextrestored
events:
var canvas = document.getElementById('canvas'); var gl = canvas.getContext('webgl'); canvas.addEventListener('webglcontextlost', function(e) { console.log(e); }, false); gl.getExtension('WEBGL_lose_context').loseContext(); // WebGLContextEvent event with type "webglcontextlost" is logged.
Specifications
Specification | Status | Comment |
---|---|---|
WEBGL_lose_context The definition of 'WEBGL_lose_context' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | ? | No | 22 19 — 58 MOZ_ | ? | ? | ? |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | ? | ? | No | ? | ? | ? | ? |