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"Christopher James Huff" <cja### [at] earthlink net> wrote in message
news:cjameshuff-0D7CA7.14273931012005@news.povray.org...
> There are two similar problems. One is a discontinuity in the second
> derivative of the noise function at points on the lattice...this one is
> fixed, as far as I know. The second problem is more fundamental, a
> lattice of points with values near 0.5 (maybe not exact, due to the way
> POV transforms the output range of the noise function)...all POV-Ray's
> noise generators have this problem, and it is not "fixable".
I'll take your word for it - I just remain mystified why it's never been a
noticeable artifact in any iso I've made with f_noise. <goes off to play
with f_noise>
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