Tom Melly wrote:
> Some crushed ice for a WIP - ignore the crappy box... any thoughts?
> 
>  #declare Ice_Mat =
>  material {
>   texture {
>    pigment {rgbf <1,1,1,0.9>}
>    normal {granite 1 scale 5}
>    finish {
>     diffuse 0.75
>     specular 0.75
>     roughness 0.01
>      reflection {fresnel}
>      //metallic
>      conserve_energy
>    }
>   }
>   interior {
>    ior 1.4
>    media{method 3 scattering{1, 0.35 extinction 1}}// density{wrinkles}}
>   }
>  }
> 
>  #declare IS1 = 2;
>  #declare F_Ice = function(x,y,z) {
>   z
>   - f_ridged_mf(x*IS1,y*IS1,0, 0, 2.5, 4, 2, 5, 2)/5
>   + f_noise3d(x,y,0)
>   -1
>  }
> 
>  height_field{
>   function 100,100 {F_Ice(x*10,y*14,0)}
>   scale<10,1/2,14>
>   material{Ice_Mat}
>   hollow
>   translate<-5,0,-7>
>  }
> 
> 
> 
Colour and texture looks dead on for all but the snowyest of crushed 
ice. In other words once it has set for a few minutes.  I guess I am 
more used to seeing varients on cubed ice for so long now that I have a 
hard time picturing true crushed ice.

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