Still playing with eval_pattern/eval_pigment, thanks to Samuel for the
inspiration, I tried some more mathematical patterns, this one uses the
following function:

function { (cos(atan2(x,y)*10)) / (((x*x + y*y))*10)  }

comments?

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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