I am trying to light an indoor architectural scene but am having great difficulties so far. I originally decided to go with mental ray because it seemed so much easier than Radiosity and I am using a significant number of mental ray textures. In the early stages of development I noticed a bit of artifacting in the form of coloured spots:
I originally thought, ok fine, I'll just photoshop things like that out, however recently when I tried to render the finished piece with the same settings I got this horrible render:
This took 7 hours to render an 800 x 600 with default final gather and gi settings, one mr area omni. How can I stop mental ray being retarded? Also, is it possible to render the lighting and shadow information to texture like you can with radiosity or not? I have to do a flythrough and it would take a lot less time if I didn't have to calculate lighting every frame.
Thanks in advance.