SubD surface from OBJ with mesh corners

greg.burgreen · December 4, 2021, 9:04pm

I am reading in a SubD control net from an OBJ mesh file. Unwelded edges in that mesh are successfully imported as SubD creases. I also need a few SubD mesh corners imported from the OBJ file. Is this possible, and if so, what is the trick?

BrianJ · December 6, 2021, 2:05pm

Hi @greg.burgreen when using the ToSubD command on the mesh enable the mesh corners option.

greg.burgreen · December 6, 2021, 4:08pm

Hi @BrianJ, I should have mentioned that the mesh corners option was enabled too. Still no mesh corners. Does the OBJ need to have isolated (unwelded) vertex values to identify corner nodes?

BrianJ · December 6, 2021, 5:30pm

Can you post a mesh that shows the mesh corners in the imported obj not converting to creased verts in the SubD? This should work as far as I know so there may be some specific geometry issue stopping it.

greg.burgreen · December 6, 2021, 7:28pm

BrianJ · December 6, 2021, 9:47pm

Thanks, I made a mesh with this condition and filed https://mcneel.myjetbrains.com/youtrack/issue/RH-66588. It’s due to the three edges at the corner.