You find that these functions are slow. That's normal.
From: https://www.opengl.org/wiki/Common_Mistakes#glGetFloatv_glGetBooleanv_glGetDoublev_glGetIntegerv
I am sorry, Oculus. But I’m not going to use you SDK Rendering and will invest another 30-60 hrs trying to replicate the ovr distortion myself.
Oculus SDK OpenGL Rendering saves most states of gl twice every frame. I didn’t …