Actually, Catmull-Clark subdivision surfaces have been supported in Pixar Renderman since 1998. See the link below for the specific reference, and if you browse down the page , there is quite a bit of information on the specific advantages and instances where it can be advantageous to use.

Keep in mind, there are several variants of Renderman out in the wild. The one used by Pixar, Wetta, and several others is the Pixar variant - Pixar Renderman or "PRman"

http://graphics.stanford.edu/lab/soft/purgatory/prman/Toolkit/rnotes-3.8.html

"I also fail to see how the smoothing is not based off of the geometry. How do you think in determines the curve of the smooth?"

I didn't say smooting in Poser wasn't based on geometry, of course it's "based" on geometry. But it doesn't create geometry, it is a shader effect that gives the appearance of additional geometry. It can work well in many cases, but often this phantom geometry does not show up in shadows, and can cause undesired visual results when other objects intereract with the surface of the phantom geometry.

I find it hard to understand why people would not welcome CC subd, or a similar technology in Poser? Making morphs is actually easier with fewer polys to push and pull (note the discussion in the link above). Why do Maya, 3DS, Cinema 4D, Lightwave, Modo, Zbrush, Blender, etc., etc. all have a big investment in subd if it's not valuable? But, maybe I'm just lazy.

If you don't like cc subd, don't want cc subd in Poser, thats fine with me. I just thought I'd point out that it is an industry standard, and is a very valuable tool to have in your tool box. I'd like to have it, but maybe I'm just not as well versed in 3D as others here who don't want it in Poser.

__________________________________________________________

My Rendo Gallery ........ My DAZ3D Gallery ........... My DA Gallery ......