help needed: strange black facets when rendered in Poser - this is my first ,odel, created with C4D - exported as OBJ file. when i import the obj file into poser and do a render it looks fine (left object) - after i saved the object into the poser library and load it and do a render, than i find those strange black facets. in the preview it looks fine. i checked it with UV mapper (no degenerated facets found) - remapped the whole thing in UV mapper: with same result. does anybody know what's wrong with it ...?