I'll offer up what little knowledge I know about this subject. Consider it a *bump* at the very least.<BR><BR>OpenGL was typically better than Direct3D for a long time, up until recently. IIRC, OpenGL ...
In our recent review of the late 2013 Mac Pro, one of our sticking points was the OpenGL performance that trailed Windows on the same hardware. A particularly damning case was the high-polygon-scene ...