Quote - i thought that poser doesnt use smoothing groups.

What I know is that it doesn't interpolate normals across smoothing groups. That's why I had to remove all smoothing groups from Antonia's object file for Poser rendering. They produced sharp edges in shading where there weren't supposed to be any. At least that was the case for Poser 6.

After some experimenting just now, I doubt that they help make Poser's polygon smoothing behave any better, though. It seems to me that it's more about edge angles, as bagginsbill suggested.

-- I'm not mad at you, just Westphalian.