ext.restoreContext

The WEBGL_lose_context.restoreContext() method is part of the WebGL API and allows you to simulate restoring the context of a WebGLRenderingContext object.

Syntax

gl.getExtension('WEBGL_lose_context').restoreContext();

Errors thrown

• INVALID_OPERATION if the context was not lost.

Examples

With this method, you can simulate the webglcontextrestored event:

var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');

canvas.addEventListener('webglcontextrestored', function(e) {
  console.log(e); 
}, false);

gl.getExtension('WEBGL_lose_context').restoreContext();

Specifications

Specification	Status	Comment
WEBGL_lose_context The definition of 'WEBGL_lose_context.loseContext' in that specification.	Recommendation	Initial definition.

Browser compatibility

See also

• WebGLRenderingContext.isContextLost()
• Events: webglcontextlost, webglcontextrestored, webglcontextcreationerror