So sad story that most of the game developers don’t use OpenGL.
Well, it the Microsoft fault, for giving the money for them, so they could use Direct3D and also for making OpenGL slow in Win OS.
Some OpenGL research projects scenes:
http://nvidia.fullviewmedia.com/gtc2012/0515-B-S0610.html @ 2:49
As you can see OpenGL is pretty powerful, and actually it has same features what were included into DX11 ( developers were amazed of them ), they were already in OpenGL for like 2 years.
Also, OpenGL is cross-platform, well it is harder to use than DX, but it is stronger, faster ( well, if we take GPU multithreading, then OpenGL loses by a millisecond )… but it is just one thing :eek: