Mark Wagner wrote:
> 
[...]
> 
> Allow a user to provide a second greyscale image that specifies the
> "hardness" of parts of the map.
> 
> Mark

That's already planned (it's already possible to specify a B/W mask for total
exclusion of certain areas).  

The problem is how to generate that map, because in real world the amount of
erosion is influenced by a lot of factors like:

   -rock material
   -water amount
   -slope
   -hillside orientation
   -most often wind directions
   -existing vegetation
   -...

Some of these factors can be calculated from the heightfield, some have to be
specified by the user, but for example not every user drawn "geological map" is
possible, it is not reasonable if the material changes from granite to sand just
at the top of a mountain.

Christoph

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

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