In article <web.3f82ae85bc09b08e10dd5cfd0@news.povray.org>,
 "Dave Matthews" <dma### [at] wrmnwestmnscuedu> wrote:

> >Would it be possible to change the color based on the gradient of the 
> >>function?
> 
> Probably, but I usually have to wait for someone like Mike Williams or
> "Sputnik" to come along and show me how ;-)

Well, it would be simple enough, just use the fn_Gradient() macro in 
math.inc. It will be quite a bit slower to evaluate, though. Something 
more interesting would be to use gradient in each axis for the 
respective color component: x gradient for red, y gradient for green, 
and z gradient for blue. This should actually be a bit faster...not to 
mention more colorful.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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