Please use my algorithm to compute the vol% vs. threshold for your new
function. See my algorithm at:
p.b.i
Subject: Volume fraction of noise3d vs threshold vs. mega version 39kbbu)
Date: Thu, 18 May 2000 13:51:08 -0400
Jerome wrote:
> As you all know, Nathan fixed noise3d in megapov 0.5 to get
> rid of the plateau effect. But his fix makes for radically
> different scenes (unless you modify your source to
> compensate). I'm suggesting another way to fix it that makes
> for much less difference in existing code.
>
> Pros:
> - the results are very similar to those of the old noise3d
> making for easier adaptation (in particular, any scene made
> with the original should render nearly the same unless it
> relied on the plateau effect).
>
> Cons:
> - it's slightly slower
> - the statistical distribution is heavily distorted (who
> cares?)
>
> Attached are 3 pics:
> * noise3d isosurface rendered with megapov 0.4
> * the same rendered with my modified version of megapov 0.4
> * the same rendered with megapov 0.5
>
> What do you think?
>
> Jerome
> --
> * Doctor Jekyll had something * mailto:ber### [at] iname com
> * to Hyde... * http://www.enst.fr/~jberger
> *******************************
>
> ------------------------------------------------------------------------
> [Image] [Image] [Image]
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