Here is a very quick “example”, without taking any time to make adjustments. I can get more detailed later, if needed:
Rhino object:
Meshed in Rhino:
Imported into ZBrush:
DynaMeshed to convert into dense quads:
ZRemesher to convert into lower poly quads:
Imported quad mesh into rhino, converted to T-Splines object (toggled smooth):
T-Splines object converted to NURBS:
Rendered NURBS object in Rhino:
There are steps in ZBrush that allows for control as to how much smoothing takes place and a couple of methods to get ZBrush to better work with the triangled mesh from Rhino. The ZRemesher seems to do an amazing job at creating good quality quad meshes. Getting something smooth is easy, I’m trying to play with settings and methods to see how much detail I can capture when coming out of ZBrush and that appears to be a little harder. Still working on that portion of it.