> Hello!
>
> In short, I would like to visualize the electrostatic potential on an density
> isosurface. Thus I have two 3df files, one for potential and one for density.
>
> Similarly than in the figure in bottom of this page, except much more
> beautifully.
> http://www.cup.uni-muenchen.de/ch/compchem/pop/mep1.html
>
> I know how to do the isosurface, but I can't figure out how to set a 'volumetric
> texture' to it.
>
> Best regards,
> Mikael
>
>

A "volumetric" anything occupy a volume, not a surface.

A solution would be to make the isosurface transparent, add "hollow", 
and, finaly, add some media in the isosurface using your volumetric data 
from the dencity DF3.



Alain

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