Rift: Modifying the Projection / FOV part 1

I’ve attempted to recreate the FOV used by the Rift, by calling CalculateFovFromEyePosition using defaults found in OVR_Stereo.cpp (mostly in OVR_Stereo.cpp::CreateDebugHMDInfo): info.ProductName = “Oculus Rift DK2”; info.ResolutionInPixels = Sizei ( 1920, 1080 ); info.ScreenSizeInMeters = Sizef ( 0.12576f, …