AW: [Algorithms] midpoint displacement problems

[Gottfried C. <got...@ne...>]

oops, sorry, mixed this up with fault formation. actually you have to tweak
the roughness and fir filter factors. (in the image i've used a roughness of
1 and a fir filter constant of 0.1f).

> -----Ursprüngliche Nachricht-----
> Von: gda...@li...
> [mailto:gda...@li...]Im Auftrag von
> Gottfried Chen
> Gesendet: Donnerstag, 28. Februar 2002 11:02
> An: David Zaadstra; gda...@li...
> Betreff: AW: [Algorithms] midpoint displacement problems
>
>
> I've implemented the algorithm a while ago and had the exact same "error"
> you have. Actually it turned out not to be an error. Just play
> around a bit
> with the "number of iterations between smoothing filter" parameter a bit.
> Then it should look like this:
> http://www.unet.univie.ac.at/~a9104678/ChengineOrg/Images/Screensh
ots/Terrai
> nTexture.jpg
>
> gottfried
>
> > -----Ursprüngliche Nachricht-----
> > Von: gda...@li...
> > [mailto:gda...@li...]Im Auftrag von
> > David Zaadstra
> > Gesendet: Mittwoch, 27. Februar 2002 21:12
> > An: gda...@li...
> > Betreff: [Algorithms] midpoint displacement problems
> >
> >
> > Hello everybody,
> >
> > I have a problem with the midpoint displacement algorithm (from GPG1).
> > I get strange little peaks all around my landscape. I've been
> looking for
> > the bug for hours now and starting to believe that I'm a complete idiot.
> > Could it be that the peaks are normal? That would explain why an erosion
> > filter was added to the example file in GPG...
> > Please take a look at this screenshot to see what I mean:
> > www.gameprogramming.de/screen.jpg (not a very good one, i know)
> >
> > Thanks for your help,
> > David
> >
> >
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