Hi, I am adding trees and buildings to a terrain for a flight simulator application. When I draw the scene, culling is taking a long time, quite a bit more than the draw, and the fps drop from 60 to 9 in release. There are about 20000 trees and buildings. I am generating a group node, containing all the trees and buildings models (which I read from files), and then I use the osgUtil::Optimizer with option SPATIALIZE_GROUPS to generate a balanced scene graph. However, using the optimizer does not seem to be helping at all because I get the same frame rates if I use it or not. I would have thought that spatializing the scene graph will speed up the culling? I am using osg 2.6.0 Is there some other way that I can speedup the culling process for this type of scene? thanks a lot Juan
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