Hi Elmar,

On Fri, Jul 9, 2010 at 6:53 AM, Elmar Alizade <[email protected]> wrote:
> I want to laod DEM file as terrain to my program. How can I do it? Generally 
> does OSG support DEM files?

There are a range of ways, from loading the DEM using the GDAL plugin
(you'll need to GDAL installed along with dev headers) or then set up
the osgTerrain::TerrainTile yourself, or use a tool like
VirtualPLanetBuilder to build a database for you, through to using the
osgEarth 3rd party NodeKit for loading your DEM's.

Which of this routes is appropriate for you I cannot say as you don't
provide enough information about what scale of data and what you are
trying to achieve.

Robert.
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