The setup: I make a model (a bowl) with one sided polys, all the normals facing in. Export as an obj. Bring it into Poser Pro Pack (Mac). It all looks fantastic. I have a self contained seamless room in which to put my poser people. I render an image, it all works. The problem: I render an animation. Now the bowl renders as a solid from the outside, as if the polys were double sided or the normals got flipped. The question: Is there a place in poser where I can set or check to make sure that Poser is not adding another side to my polys? Thanks to whoever wants to share their brilliance. And sorry if this is an old question. deci6el