Hi all, I am looking for a way to know when the geometry under a PagedLOD has changed. ( load / unload level ). My issue is that i have to keep updated the intersection list of an osg::PlaneIntersector called on a group which could have PagedLOD's as child but i do not want to recompute intersections every frame for performances purpose.
So the idea is to recompute the plane intersections with a node only when any PagedLOD children say "i have loaded a level" or "i have unloaded a level". Is there any way to detect those events ? I have thought about count geodes under the node in its callback and then recompute intersection when the number of geodes has changed, but i feel that's not a good suitable solution. Also i have noticed that a PlaneIntersector launched on a PagedLOD will always compute intersection with the finest level already loaded into memory, is that expected ? Thanks for your attention, Regards, Harold
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