Hi Will,

> Yes, I agree that the surfaces are actually joined but perhaps
> a coined term is they're not aligned?

It is tough to create terminology for this stuff. But this problem here:



seems to be described pretty well by an "alignment" problem - in this case the vertices that were created are shifted in position from one another, in other words not lined up or not aligned...

I guess that one is a "watertight vertex alignment", and the other one that you are talking about is a "quad to quad alignment", where you're talking about a situation where only quads are created along a shared edge and that you want matching quads between the pieces instead of n-gons.


> What I typically do as in exactly the vertices you circled is to
> move them around and merge them together, add additional
> edges where required etc.,

Can you describe a bit more the reason why you would be moving these around or adding more of them in?

The more concrete things and actual example models that you could show would help me to understand what you are trying to do better and also give me some better test cases for trying to improve it.

- Michael