everything. unity's had it for ages, as for the future it looks like unity 4 is going to be a big deal. have a read of this for some nice visual stuff: http://developer.download.nvidia.com/assets/gamedev/files/gdc12/GDC2012_Mastering_DirectX11_with_Unity.pdf not that I am at all trying to take away from UE4, i CANNOT WAIT…