POV-Ray : Newsgroups : povray.binaries.images : Volume fraction of noise3d vs threshold vs. mega version 39kbbu) : Re: Volume fraction of noise3d vs threshold vs. mega version 39kbbu) Server Time
2 Oct 2024 08:19:44 EDT (-0400)
  Re: Volume fraction of noise3d vs threshold vs. mega version 39kbbu)  
From: Nathan Kopp
Date: 18 May 2000 23:24:19
Message: <3924b3e3@news.povray.org>
David Fontaine <dav### [at] faricynet> wrote...
> Nathan Kopp wrote:
>
> > This is very interesting info, although I think that your graphs might
be
> > mis-labeled (maybe the red line should be 0.4 and the black line 0.5).
>
> "The nonzero volume fraction at a threshold of zero explains the plateaus
we
> saw in the Mega 0.0-0.4 noise3d function."
>

Yes, I read that, but I still stick with my original opinion.  I think that
the flat, clipped, sections of the red line are what explain the plateaus
from the original noise3d.  The non-zero volume fraction at a zero thershold
for the black line would demonstrate that the range of noise3d is not yet
perfect, but it is missing in the other direction.

-Nathan


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