BINGO! I think I've solved it.
I went into work and got the other building mesh file that was doing
the "bright faces" thing. I did the same series of mesh/file reductions as I
did on the last one. i.e.
1.) Rendered in 3DS3 (eliminated 3DS2 possibility)
2.) Rendered in Camera and User view…same problem
3.) Unified normals on the object in question (which included
3dfaces in 3 different planes…same result
4.) Selected only the faces in the flat plane of the building, made
them an object by themselves, and the Bright Faces was history!
This was what I did with the other file, but that action got lost in the
general scuffle, as I did it in another sequence.
So, Robert, I suggest you try making your "bright faces" part of a
separate, 2D plane only entity and see what happens…
Regards, Gary