Hi,
I’m trying to position 30 - 40 models on a large terrapage (.txp) terrain
database, approximately 300miles x 500miles.
All the models are scattered around the terrain. The terrain is obviously
not present all at one go for me to get all the HAT values I need.
What I have done is move to each model position and wait for the HAT test to
return a valid result. However my problem is that I think I am probably
picking up a low level LOD intersection, so that when I eventually go and
view the positioned model it can sometimes float above, sink below, or sit
on the terrain.
The following is the a snippet of code that I am using
isectVisitor.addLineSegment ( pTerrainIsect );
pTerrainNode->accept ( isectVisitor );
osgUtil::IntersectVisitor::HitList hitList = isectVisitor.getHitList(
pTerrainIsect ) ;
Is there someway of making sure that I pick up the highest LOD intersection,
or someway of finding out if the highest LOD has been loaded before I do my
intersection test?
Also when the terrain is loaded from .txp into the scenegraph, is it
positioned in the graph lowest LOD first, highest last, or is there no
particular order?
Any help would be much appreciated.
Cheers
Mark
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.503 / Virus Database: 269.15.26/1120 - Release Date: 09-Nov-07
9:26 AM
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
