Valve: OpenGL is faster than DirectX -- even on WindowsIn a scary twist that reinforces Valve's distaste of Windows 8, it turns out that the Source engine -- the 3D engine that powers Half Life 2, Left 4 Dead, and Dota 2 -- runs faster on Ubuntu 12.04 and OpenGL than Windows 7 and DirectX/Direct3D. In a scary twist that reinforces Valve's distaste for Windows 8, it turns out that the Source engine -- the 3D engine that powers Half Life 2, Left 4 Dead,
