"Thomas de Groot" <tDOTdegroot@interDOTnlANOTHERDOTnet> wrote:
> "Kirk Andrews" <kir### [at] tektonart com> schreef in bericht
> news:web.493969b33e06781e198b63d90@news.povray.org...
> > I've struggled for a long time to try and achieve an erosion effect in POV
> > that
> > is the least bit convincing. I'm still not there, but perhaps I've made
> > some
> > headway. I've been using proximity functions to simulation a little
> > erosion.
> > Maybe you know some better ways?
> >
>
> Not easy overall. Until now, I have mainly used the f_ridge(),
> f_ridged_mf(), and f_hetero() functions as a basis for decent erosion
> features in isosurfaces. This is done also for instance by the program
> Leveller. However, that is not always convincing. Ideally, one would like to
> take a pre-defined landscape and apply erosion functions to it to wear it
> down and apply a sediment apron around standing ridges. That is basically
> what programs like GeoControl or World Machine are doing I believe, and very
> convincingly so.
>
> Thomas
I had never used f_ridged_mf(). I have almost always used some combination of
pigment patterns. There certainly is some promise in it--thanks for
introducing it to me.
Just playing with it a bit:
Post a reply to this message
Attachments:
Download 'ridged02.jpg' (339 KB)
Preview of image 'ridged02.jpg'
|
