> Quote - > Quote - Poser's Smooth Polygon box in the render settings is SubD. > > > > Are you sure about that? My experiments point to smoothing surface normals rather than modifying mesh density and smoothing. A true subD surface allows one to introduce increasing level of detail on a per vertex / per face basis.

Well both and neither. My understanding is that true subD (i.e. Catmull-Clark (spelling?)) is not what Poser does.

However, it does do micro-polygon displacements. Meaning it further subdivides (somehow) to make flat things round.

Examine these three lo-res spheres. The first has normal interpolation and smoothing disabled. (You disable normal interpolation by setting the "Crease angle" to 0.)

The second has normal interpolation, but no smoothing.

The third has both.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)