Changes display smoothness setting for NURBS curves/surfaces to
medium quality. Specifically, the four values under the Parametric
- Steps group on the Hardware Display tab of the object's Geometry
Approximation property page comprise these 'smoothness
settings'.
Geometry approximation specifies how polygons, surfaces, and curves
should be tessellated (divided into triangles at rendering time).
The various methods of approximation let you reduce the number of
triangles in the geometry of an object and still render a very
smooth surface.