You can set the following preferences in the NURBS category of the Preferences window.
To return to the default factory settings, choose in this window. Note that this resets the preferences in every category in the Preferences window.
Select whether you want Edit Points, Hulls, CVs, or origins on new curves or new surfaces:
These options work only on new curves or surfaces, not existing items.
Controls the smoothness of an object in a view. It also affects the rendering of newly created surfaces. Enter a value or use the slider. The range is from 0 to 64. The higher the value, the smoother the surface.
Controls the smoothness of a curve in a view. Enter a value or use the slider. The range is from 1 to 128. The higher the value, the smoother the curve.
Controls how smooth your smooth-shaded object looks. Enter a value or use the slider. The range is from 1 to 64. The higher the value, the smoother the smooth-shaded object.
Controls how NURBS primitives are displayed. When you create or move NURBS objects far from the origin or when you scale NURBS objects to extreme sizes, you may experience jitter during animation, problems selecting objects, or problems with an object’s display. Setting Surface Precision to High can help these situations.