Nieminen Juha <war### [at] punarastascstutfi> wrote in message
news:385a1d52@news.povray.org...
>   What I would want to be able to do is to create df3 density maps
> inside povray itself, without external files. Just like it's possible to
> create a heightfield without an external file in megapov.
>   Is this already possible in megapov?

I am not sure what you mean, but with MegaPov or SuperPatch
I think you can use an isosurface function as a density, as in:

#declare densfn=function{x^3+y-z^2}

sphere{0,.5
 texture{
   pigment{rgbt 1}
 }
 interior{
     media{
       emission 1
       density{
         function{densfn}
         color_map{
            [0     rgb<1,1,1>]
            [.1    rgb<0,0,1>]
            [1     rgb<0,0,0>]
         }
       }

    }
 }
 hollow
}

(I am *not* saying that this snippet is good example!
It is just to show syntax)

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