HFSS - continuous inhomogeneous dielectric

Hi, is it possible to create and object made of a continuous inhomogeneous dielectric?
For example a sphere with permittivity as a function of the radial distance to the center.
If not, is there any way, and how, to import "object definition" files made with different software? i.e. the above sphere "made" in matlab.
thanks a lot

P.S. I'm using HFSS 9.2

Hi,
Using COMSOL software you can design and analyze inhomogeneous anisotropic structures. With HFSS you can have an anisotropic medium buy I'm not sure about inhomogeneous one.

CST also can do this.