Hello,
Mental ray render of an old c4d model I made. I've tried lighting this in a way other than using the usual sun and sky and final gather, by using area lights with GI photons. The ceiling of the model has a window plus there is a window at the front, both have area lights, with mental ray portals plugged in. The concrete tends to make the render look dirty, so I may try a plainer material.
Comments welcome