I am not sure. In the past Carmack stated that DirectX at some point became a much better API compared to OpenGL. He also once stated (admittedly when talking a

I am not sure. In the past Carmack stated that DirectX at some point became a much better API compared to OpenGL. He also once stated (admittedly when talking about id Software, after he left the company) that he's not really a sentimental person.