Ah I see where I gave an implication I did not mean. Actually, two.

First, when I said "incorrect to say this is not incompatible with Catmull Clark", by "this" I meant this technique of using partially welded polygons instead of n-gons. This was in reference to your statement " I'm explaining why most modelers (i.e. people) won't do that type of thing", by which I assumed you meant partially welded polygons.

The other implication that you tested but I had no intention of implying, was that you could further subdivide the mesh arranged with holes. I meant only that if you loaded this arrangement of polygons into a renderer that implements CC, versus REYES, it would not make any difference. I expect there would be a difference if you actually load that mesh in a modeler and change it via adding levels of subdivision.

I actually expected it to shrink in 2D - but you say only the UV moves? That seems wrong.

In any case, I'm talking about if you make a prop this way, with partially welded vertices, and render it in anything, it will look the same as in Poser even if it is a renderer that supports CCSD.

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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)