The WebGL2RenderingContext.waitSync() method of the WebGL 2 API returns immediately, but waits on the GL server until the given WebGLSync object is signaled.

The method is a no-op in the absence of the possibility of synchronizing between multiple GL contexts.

sync

A WebGLSync object on which to wait on.

flags

A GLbitfield specifying a bitwise combination of flags controlling the flushing behavior. Must be 0 (exists for extensions only).

timeout

A GLint64 specifying a timeout the server should wait before continuing. Must be gl.TIMEOUT_IGNORED.

None (undefined).

• WebGLSync