CompuServe Messages

Actually, I'm so embarrassed I'd rather not talk about it. Using an animated opacity map on an object with lofted mapping coordinates (documented well in IR4) is the only way to go. In that case the only real trick is to make the animated map — just make a white illuminated material rectangle move across the screen the desired number of frames. Took me all of about ten minutes. For anything 3 dimensional (water, wire, etc.) just have a hemisphere follow the path as well (to cap it). (I was brain dead that night).