Unlike the "Doom" engine before it, the "Quake" engine offered full real-time 3D rendering and early support for 3D acceleration through OpenGL.
The "Quake" engine offered full real-time 3D rendering acceleration through OpenGL. This was unlike the "Doom" engine before it. The "Quake" engine offered full real-early support for 3D acceleration through OpenGL. This was unlike the "Doom" engine before it.