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

None.

None (undefined).

Browsers may not report WebGL errors by default. WebGL's error reporting works by calling getError() and checking for errors. The following exceptions may be thrown:

INVALID_OPERATION

Thrown if the context was not lost.

With this method, you can simulate the webglcontextrestored event:

const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");

canvas.addEventListener(
  "webglcontextrestored",
  (e) => {
    console.log(e);
  },
  false,
);

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

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