One method would be to use the hue and intensity values of the color to
form the grey scale value of that color, and then render the grey scale
colors.  Perhaps applying a greyscale equation to your pigments?

Steve


Nieminen Mika wrote:
> 
> Ken <tyl### [at] pacbellnet> wrote:
> : Anyway My solutions was of course to use shades of gray for all objects
> : in the scene.
> 
>   How do you model this:
> 
>   Three objects: One is yellow, one is cyan and one is white.
>   Two light sources: One is red and the other is blue.
>   Of course the red light source only illuminates the yellow and the white
> object while the blue light source only illuminates the cyan and also
> the white object.
>   I want this image in b/w.
> 
> --
> main(i,_){for(_?main(i+1,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[--i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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