josterD opened this issue on Aug 27, 2010 · 20 posts
Jcleaver posted Thu, 02 September 2010 at 3:35 PM
If the light is outside of the room, you will get better results faster if you use a 'Portal'. That basically tells LuxRender where to concentrate the light rays. If you are using Reality, which i am assuming you are, there is a portal prop included. Read the manual on how to get it to work.