news:web.4120bd99e6dfd373e5987fa60@news.povray.org...
> The value of each dot of the DEM file is the real altitude in meters. For
> example, Annecy's lac altitude is 444m so, the value of this point in 444
> (red*256 + green).
> As the maximum value for this 16bits value is 65535, I put 65535 as Y
scale

Well, then if you're sure the conversion is correct (you can check this by
adding a vertical cylinder of known height to the scene) so it's just a
matter of finding the right camera position, angle and look_at values. It
should be quite accurate, taking into account that the map is low-def.

G.


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