DreamlandModels opened this issue on Jul 13, 2010 · 185 posts
pjz99 posted Tue, 13 July 2010 at 8:10 PM
Quote - I didn't say the prop was OK in Catmull-Clark.
Sure looked like you did. Yes if you have a set of polygons whose points are all coplanar (that is, all have the same exact value on one axis and form a plane) then it is OK to have unwelded edges. That isn't what you demonstrated or what anybody else was talking about, even if it's good to be aware of.
edit: actually to be really hyper anally precise, yes they will end up being curved, just in two dimensions, so they won't appear to be at render time.
edit again: hmm actually I'm wrong, it will manifest in texture stretching as the UV is curved.