Gilles Tran wrote:
> 
> But does displacement mapping solves the problem of having a good displacement map
> in the first place ?

If i see it right your sample is similar to the heightfield solution.  The
obvious starting point would be to take the image map used for the texture and
try to get a reasonable corresponding heightfield/isosurface map using filter
functions.  

[...]
> The second problem is that it's not
> fast. Otherwise it's not that complicated.
> 

heightfields should be a lot faster than isosurfaces in many cases, but of
course they are not that flexible.

Christoph

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

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