Discovered that I was completly wrong!

Despite the fact that Amapi can work separately in Polygonal mode or Nurbs mode

The Old Amapi 7.52 can convert a polygonal model in Nurbs!!!
with 2 methods!
Without smooth
With Catmull-Clark subdivision

Reloaded here in Moi in 3dm format ;)
Works fine! :)
right bottom corner is the Amapi polygonal model

I don't see models.. :-)

Peace,
Rich_Art. ;-)

I recall it supported only about 100 polygons before crashing. Unlike Tsplines which I've converted up to 80,000 polys to Nurbs...

Must be visible now first post ;)

Must work without problem till 1000 - 2000 polygons
Some parameters and level of subdivision must be entered!

"""""""""I recall it supported only about 100 polygons before crashing. """"""""""

Yes. I was disappointed when development stopped. A few apps got dropped in the dust.

It wont work well for a polymodel made somewhere else, that is already chopped up (Like dice up your moi model and bring it in to work, then re-convert) But it could be a good tool to get a smaller shape modeled with box modeling, then bring it into MoI to incorporate...

Certainly not a solution to go out and buy today, but if you had it laying around?

I was referring to imported meshes, built as native sub-d cages in other modelers. Perhaps a system issue but I wouldnt think so... I suppose if I did not have access to Tsplines, then yeah I probably would have held some hope for Amapi to improve in this area.. I do also remember Amapi's surfacing was maximum C1, so not sure how useful the output would be anyway if nurbs conversion shared this same limitation...