Hi Renzil,

I don't really understand what you mean.  The database built by osgdem
doesn't contain any DEMs, it's either just polygonal based or using
osgTerrain::TerrainTile if you use the --terrain option.  osgdem
builds the geometry data based on the DEMs it loads, but once the
geometry is created the DEM data is just deallocated as there is no
further use for it.

Robert.

On Wed, May 21, 2008 at 11:13 PM, renzil d'souza <[EMAIL PROTECTED]> wrote:
>
> Hi
>
> Currently osgdem (vpb-0.9.7) in paged-LOD mode generates various subtiles for 
> textures which can be output as dds files. I need to subtile my DEM data in 
> the same way as dds files, so I tried passing the DEM as a texture with "-t 
> ". But the sub-tiles generated when viewed in OSG viewer are totally white. I 
> have confirmed this through code that it is generating all the values as 
> white. My DEM file format is tif and so are my textures, but my textures 
> subtile correctly so why can't my DEMs ?
>
> I'm using SUSE Linux 10.3, OSG-2.4, gdal-1.5.1, and vpb-0.9.7. Thanks for 
> your time.
>
> Renzil
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