Phoronix: Unigine Engine Is Back To Slamming GPUs, Drivers

While Unigine Valley is finally being released this week as a beautiful OpenGL (and Direct3D for Windows users) tech demo, it's very demanding on the system's graphics card and drivers. The open-source Mesa/Gallium3D drivers are out of the question and even the proprietary graphics drivers drop to their knees...

http://www.phoronix.com/vr.php?view=MTI5OTY