Hi Sheik, one difficulty with doing this automatically is that a diamond is kind of a special case, in that it is supposed to be made up of planar facets.

So a conversion from mesh to NURBS where each polygon becomes one facet works fine for this case.

But often times polygon mesh files are intended to be a simulation of a smooth surface instead of one with planar facets. Trying to convert one of these types of mesh files into a NURBS object where each polygon becomes one little tiny NURBS plane will not work very well. The NURBS structure expects smooth surfaces to be made up of larger smooth surface patches instead of tons of little facets.

- Michael