I'd like to know how to improve the smothness that maya uses to draw a nurbs surface. Sometimes maya doesn't render nurbs surface as smoth as I wanted. If I increase the surface resolution(using rebuild surface), the surface appears more smooth, but i dont wanna do this. I think maya should do this to me, it should render nurbs as smoth as nessecery.
Now, I've just found that there is an attribute called tesselation->advand tesselation->primary tesselation options where you can set (best guest based on screen size) to U and V. Doing this maya renders the low resolution surface much better.
Then I'll change my question:

Is there a way to make a surface based on a closed curve that is not plane(So planar doesn't work)?