Hi guys, this comes up every now and then. The default mesher isn’t dooing Nurbs justice in some situations. Take a look at this:
It’s a simple sweep2rail that just rotates around it self. Pure, clean layout:
This type of oversimplifed meshing of a double curved surface makes the shaded nurbs look really bad, and for most it appears that there is something wrong with the nurbs surface.
I think something is wrong here, maybe you can take a look:
Moebius Bug render mesh.3dm (163.5 KB)