Quote Originally Posted by sallybode View Post
The interior light source makes the inside shell of the continents appear concave but without an exterior light source, the forward continent appears flat.

Additionally, if you used a convex lens you could increase the believabiltiy of the animation as the continent would be then warped toward you. As of now, it looks like continent shaped cookies racing from view.
Thanks All,
Sally,
Yes, I agree, those adjustments would improve the illusion. If I get ambitious, I will try implementing your suggestions; they're good ones.
ron