Convert to NURBS crashes Maya

Coding
#1

Hi Devs,

I have a wired case, converting polygon geometry to NURBS with a script crashes Maya on a particular object. Printing each step and it looks like a crash is happening on the NURBS step after Poly to Subdiv conversion done.

If I run the conversion piece of code only from Script Editor there are even no errors happening:

string $subdiv_geo[] = `polyToSubdiv -maxPolyCount 100000 -name "SUBD" "polySurface52146"`;
print(">> Poly to SUBD done!\r");
string $nurbs_geo[] = `subdToNurbs  -constructionHistory off -name "NURBS" $subdiv_geo[0]`;
print(">> Subd to NURBS done!\r");

What can I do to troubleshoot?

#2

does it work interactively?

#3

No, with the same commands via UI it also crashes…
The problem was not solved, but if you skip smoothing it is working. So we just did not smooth.

#4

Poly to Subdiv is probably sensitive to topology issues that are fine for a polymesh but not reproducible in subd. You might have luck using Maya’s polygon cleanup before the conversion

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