"Jim Kress" <kre### [at] kressworkscom> wrote in message
news:3b32d0ba@news.povray.org...
> Here's another result using:
>
>    method 3
>    intervals 20
>    samples 3,5
>    confidence 0.999
>    variance 1/1000
>
> What's going on with this?  Looks like the sampling algorithm is not
> behaving properly.

I hadn't seen the number of layers your df3 might be made up of but that
intervals change suggests to me there are a few.   Nathan Kopp has made the
method 3 somehow figure the intervals out on it's own (I'm guessing) and
maybe what you really need to do is increase the samples.  I often use equal
numbers.  Perhaps a samples 10,10 is okay for you?  If not there's always
method 2 and samples 5,5 could possibly do well.

Bob H.

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