On Mon, 8 Apr 2002 02:25:42 -0400, "Corey Woodworth" <cdw### [at] mpinetnet> wrote:
> texture {
>   pigment {
>     fun
>     color_map {
>     [0  color White]
>     [1  color Black]
>    }
>  }

probably

texture {
  pigment {
    function{1-fun(x,y,z).gray}
  }
 }

is enough

ABX

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