Export 3d plot to vector graphics?

Hi

I have some 3d plots with colors that I would like to export to a vector format such as eps or ps. At the end I will use it as a eps picture in a latex document so if it is possible to export directly to vectorized eps.

I have tried to used to export feature but this simply export it to something that look like a very hard compressed jpeg picture.

Does anyone know how to do this?

Thanks in advance

Regards Brian