SubD failure

Hi there,

I am attaching an example of a topology I spotted which subD are not able to create the surface. Should I post it anywhere else, or here is the right place?Rhino7_subD_limitation.3dm (42.7 KB)

Hello- if you are using meshFromLines to get there, I see that that command makes extra faces here:

If you ExtractMeshFaces and delete these, then ToSubD works on the remaining faces. I’ll add this to the list for the developer to look at.

RH-61646 MeshFromLines glitch

-Pascal