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]
}
}

union {

#declare LR=1;
#while (LR<=100)
   #declare IO=1;
   #while (IO<=100)
   #local Radi = eval_pigment (MyPigment,<LR,0,IO>);
   sphere {<0,0,0>,Radi translate <LR-50,0,IO-50> pigment {rgb <1,1,0>}}
   #declare IO=IO+1;
   #end
#declare LR=LR+1;
#end

}

All the best,

Andy Cocker

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