Quote - Except, they often don't. I've never been able to figure out why. Do you know, Les?

No I can't give you a definitive answer, but consider this. A floor is just a wall rotated 90 degrees. So if a wall will show a shadow, if you parent all the lights to the wall and parent the all the objects casting shadows to the wall, than rotate the wall 90 degrees so that it becomes a floor, logic would seem to dictate that it will still have exactly the same shadows. Now I must admit that I am working entirely from logic here. I have not actually done the experiments to prove it, but I would be very surprised if such an experiment failed and Poser proved to be anisotropic in this respect.

On the other hand, it seems to me that Poser has no great respect for logic.