I believe you would need to make a small 16x16 black image. That's what I'm doing at least. I think I heard him say that somewhere in this thread or another. Can't really rmemeber. Correct me if I'm wrong Mike.

I have a question now: Obviously, we can only take screen shots of our models because games don't render. If games don't render, how can some games have reflective flooring and mirrors? Super Mario 64 had a giant mirror room and many games I know of have reflective floors. Reflections are only achievable by rendering and when you have raytracing on I believe. So we have a small paradox. My guess is that games engines can have a mini-renderer that can conjure up a few special effects, but that's all. Am I right?