[osg-users] osgTerrain::TerrainTile question

Joseanibal Colon Ramos jcolon at email.arc.nasa.gov
Tue Sep 9 16:54:56 PDT 2008

Are you perhaps referring to paged LevelOfDetail (LOD) terrain? OSG
database pager automatically processes these types of paged LOD terrains,
and loads higher resolution tiles as you zoom in (or the opposite: lower
reslution when zooming out). request your application to load your
"master.ive" file of your pagedLOD terrain, and that is all. I hope this
might be relevant to you, however, I don't know much about osgTerrain, so
I'd advise you to wait for someone to come along with a better answer on
osgTerrain. good luck,


On Tue, September 9, 2008 1:30 pm, Coco wrote:
> Hi,
> I'm presently working on a car simulator using OSG 2.2 for the visual.
> My problem is that I would like to load big areas (such as entire cities
> or
> more) which are fragmented in several Open Flight files without loading
> all
> those files.
> I looked at the OSG documentation and found out the
> osgTerrain::TerrainTile
> class (which doesn't exist on 2.2 OSG version).
> By using OSG 2.6, would I be able to load (with the TerrainTile class)
> only
> tiles (associated to a FLT file) that I need to see (which means according
> to the location of the camera)?
> Or do I need to implement this system by myself to avoid loading all files
> at the same time?
> I hope this post is clear enough and wait for answers.
> Kind regards,
> Nicolas Duval
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> osg-users at lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

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