Hi there! I'm importing an OBJ file, into poser5, and applied the uv-map to the object, but when i press render, the object turns totally black! Please help me! Thanks in advance, Solidus

The polygons are back facing. Reverse the normals in the groupe editor or use UV-mapper in the same maner.

It could also be a couple of other things. After reversing the normals with the grouping tool, let me know if that doesn't do the trick and I'll describe how to handle such things as co-planar surcfaces, double-sided polys, lighting problems, and UV mapping problems - all of which can cause an object to render black under the right conditions.

It may not be as simple as a reversed normal. I recently built a simple model of a picture in a frame in Ligthwave. It was exported as an obj and picked up by UVmapper.

I used UVmapper's "box" mapping to find out that the "picture" insert actually had TWO normals... and that each side of the picture had it's own texture map. Interestingly enough, Poser picks up BOTH sides of the pic and tries to render them too. Results.... interesting to say the least.

Solution. Assign each side of the pic a different material name (e.g., "front" and "back"). Make the "back" material transparent with no colors. voila!

Hope this helps... or maybe all you pros out there already knew this...

Yes, bmoritz what you are describing is commonly called a "double-sided" or "double-faced" polygon, and is among the things that will cause this type of render error in Poser. As I mentioned above, there are other possibilities as well, but when advising others I always recommend checking the normals first.