Tom Melly wrote:
> "fidel viegas" <fid### [at] nodomaincom> wrote in message
> news:3E1### [at] nodomaincom...
> 
>>Hello guys, I was wondering if any of you have attempted to model a
>>brain with povray.
>>How would you go about creating such a complex structure?
>>
>>Thanks in advance
>>
>>Fidel.
>>
> 
> 
> I played around with doing this (for a brain coral).
> 
> Wouldn't do if the brain was the main component of the scene, but might be a
> help if it's just a few of 'em in jars on a backshelf or something...
> 
> #include "functions.inc"
> 
> #declare F_1 = function(x,y,z){(pow(x,2)+pow(y,2)+pow(z,2)) +
> f_ridged_mf(x*10,y*10,z*10,1,1,1,1,0,3)/5 - 2}
> #declare Brain1 =
> isosurface {
>   function {F_1(x,y,z)}
>   max_gradient 20
>   contained_by {box {-5,5}}
>   pigment { rgb<0.7,0.5,0.5> }
> }
> object{Brain1}
> 

Hi Tom, thanks a lot for the source. I'll play around with it. I didn't 
know isosurfaces were so cool. I had a look at them yesterday all day 
and found a couple of tutorials on how to do volume rendering and I am 
quite amazed with it.

By the way, here is another link on df3 files: 
http://astronomy.swin.edu.au/~pbourke/povray/df3/

Thank you all

All the best

Fidel.

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