I'm not really sure whether this qualifies for erosion, but it produces
interesting terracing effects. 

As said in p.b.i. the algorithm is based on ingo's description of his
3d-erosion, but it is quite different when used on heightfields.  There is some
flattening effect on the bottom of the valleys, which is quite opposite to what
ingo's pictures show.

I did this without rescaling after every calculation, so the terrain really
lowers during the process.  

BTW, this is my first MPEG animation, i used avi2mpg1, not sure whether it got
right, so tell me please.  

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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