Then can you explain why hospitals pay almost millions of dollars to set up powerful computers based on openGL ?? ^^There is a reason people dont use OPENGL anymore.. its crap.. it use to be great back in the original halflife days when it was ya know better then the competition. Its open source nature of everyone wants their hands in the pie is crippling the API's progress to the point of irrelevance. Sure its good for well free and all good for niche stuff right now. But superior to DX? who are you kidding. Who cares if its open and free if it cant keep up.