Hopefully this is the right forum to put my question. The problem is, I think a known one, but although I surched a good time, I still don't got a real solution:
In cinema4d I build a prop to use in poser. I export the obj file, I used diverent settings (weld identical vertices on and off) but I cant get ride of some shaded polygons. I realy hope someone can point me out a way to solve this for once and for all> :-))
Thanks

Can you post a couple of screenshots: a rendered output from Poser, and a wireframe view? That might help to see what's going on.

It sounds like a normal problem, try either using the "Make polygon normals consistent" option on import, or aligning the normals in C4D (this may make the "Flip normals" option necessary on import).

Another thought: have you split your vertices? Poser will try to smooth sharp edges, and the answer is to split vertices. UVMapper can do this for you - the Pro version makes a better job of it. The alternative (and a better bet for conforming items) is to run a narrow bevel along sharp edges.

Thanks for your reply, maybe the following image illustrate the problem I need to solve.
Splitting vertices is the first thing I tried, but without the result. I'll try again

It's hard to see the exact make up of that big polygon from your second picture, but am I right in thinking it has more than 4 sides? Poser may not like that. Could you post a flat lined view, so we can see what's joined on to that big poly?

You may need to use a combination of these, keep us posted on how you get on.

nruddock, englishbob,
I found a solution by rebuilding the base of the stairs but with less splines and vertices. The shady parts didn't  show up anymore. The fact is that I'm a novice to modeling and the first sate of the obj was in some way the result of trail and error. Maybe that caused some bad parts. I don't know if that makes sense to you, but it worked. Thanks anyway for your support!
Regards Herbert

You're very welcome, and glad to hear you sorted it out yourself, which is probably a better learning experience in the end. The fact is, modelling for Poser does require some experience of the sort of facet structures that work best; so there's no need to blame your modelling skills. (By the way: I absolutely love your V3 Natural Eyes - one of my essential Poser purchases. I use them on nearly every V3 character, mainly the ones without reflections. If only every merchant would do that.)

:-)))

If you are exporting from C4D to obj format, you really need to get Spanki's Riptide plugin. It is free at MAXON's site.... It makes exporting to Poser much easier. 

C4D's obj export is at best "the sh*ts". It reverses the normals and doesn't export all the materials. It will only export the first material. Before he released this plugin the only way to get your object exported with materials was to split the model into groups for each material and when importing into Poser you need to reverse the normals. Riptide takes care of all of these problems.

Ed

O thanks for the tip! I'll get the plugin.
:-)
Mask

I just ussed the plugin. It realy works great thanks for this reply it safes a whole lot of frustrations! Have a nice weekend! Mask

Glad it helped... It is one of my most used plugins

Ed