An API for computer graphics, usually used to render three dimensional scenes. OpenGL's specification is controlled by the OpenGL Architecture Review Board (ARB). While technically superior to Direct3D in its earlier incarnations, OpenGL only won what fanbase it has in the consumer space because of id Software and the continuous push of consumer 3D into the workstation space. In another brilliant move, SGI partnered with Microsoft to merge OpenGL into Fahrenheit, but somehow the whole venture fell apart. Some have said that OpenGL's last, best hope is its use in non-Windows environments such as Linux.