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"Andrew Cocker" <mai### [at] mariner9 net> schrieb im Newsbeitrag
news:3d5d1d89$1@news.povray.org...
> Hi,
>
> I'm trying to vary the size of each sphere in a 100x100 grid by sampling a
bozo pigment. I
> haven't used eval_pigment before and I'm finding that it is returning a
color expression, and
> I require a float, but I cannot work out how to convert between the two. I
am requiring a
> float in the range 0..1.
>
> Here's my code:
>
> #declare MyPigment =
> pigment {
> bozo
> scale 100
> color_map {
> [0 rgb 0]
> [1 rgb 1]
> }
> }
Well, the evaluated colorvector is 'grayscale', so you can use any component
of the vector you want. Perhaps use
Radi.x?
Hth,
Marc-Hendrik
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