"So I guess I should ask: how do you create iridescent cloth effects in Vue?" My english is not the best, as you have seen. Could you please post here a Poser sample render with such an iridescent cloth effect and tell me which Poser reflection map you used? I'm pretty sure that there is a solution in Vue:-). Maybe I have to try first... When you have again such a split-map problem... just show us. Bumps are very easy to create and to configurate. But I have to know what exactly you want. :-)Guitta