I am just starting to use Photoworks in SW2006. The model is a plant with building and skylights in the roof. Inside the building are equipment. What light should I use for the skylight so that it lights through them and into the inside of the building. I used directional but all is black inside. Also, what lights to use inside and how to set them so that they don't cast sharp edges shadows of everything around? I need to have a realistic lighting inside from indoor lights and from the skylight, I guess as diffuse as possible. I know this is basic stuff and I did try a few things, but as I am tight on time, any help is greatly appreciated.