WEBGL_lose_context
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:
const canvas = document.getElementById('canvas');
const gl = canvas.getContext('webgl');
canvas.addEventListener('webglcontextlost', (event) => {
console.log(event);
});
gl.getExtension('WEBGL_lose_context').loseContext();
// WebGLContextEvent event with type "webglcontextlost" is logged.
Specifications
Specification |
---|
WebGL WEBGL_lose_context Khronos Ratified Extension Specification |
Browser compatibility
BCD tables only load in the browser