Sven Littkowski wrote:
> Hi Tek,
> 
> thanks a lot for your code! I tried out, and it is better than my own 
> attempts. Hmm, still, I am not entirely satisfied. Tek, let me show you with 
> a real photo what I have in mind: The photo shows many small parts in the 
> water. I think my scene could need some of those, as well. And the distance 
> is kinda unsharp (blurred). That would be fine, too. Finally, I wonder if I 
> should use a normal camera for the underwater scene, what do you think?
> 
> Thanks,
> 
> Sven
> 
> 
> 
> 
> 
I have also tried for something like that a while back, see attached.

this is the code, you might try playing with it:

interior {
#local S_low = 60;
#local S_high = 100;
media {                 //pea
         scattering {
                 1,
                 1
                 extinction 1.0

         }
         density {
                 granite
                 turbulence 0
                 scale .03125
                 color_map {
                   [0.00 rgb 0]
                   [0.85 rgb 0]
                   [0.90 rgb <.004,.006,.002>*1.4]
                   [1.00 rgb <.004,.006,.002>*1.4]
                 }
         }
         samples S_low, S_high
}
media {                 //large pieces
         scattering {
                 1,
                 1
                 extinction 1.0

         }
         density {
                 granite
                 turbulence .1
                 scale 5.5
                 color_map {
                   [0.000 rgb <.025,.025,.022>*3]
                   [0.030 rgb <.025,.025,.022>*3]
                   [0.035 rgb 0]
                   [1.000 rgb 0]
                 }
         }
         samples S_low, S_high
}
}

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