Forces the Mac RHI to use the specified rendering device which is a 0-based index into the list of GPUs provided by FMacPlatformMisc::GetGPUDescriptors or -1 to disable & use the default device. (Default: -1, off)
Usage
Mac.ExplicitRendererID [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.
