Another intersection-related question for the group: LineSegmentIntersector::Intersection contains a "nodePath" member. However, the osg::NodePath is a simple osg::vector<Node*> that doesn't use ref_ptr's. So I'm not convinced that by the time you are finished intersecting, that nodePath member contains valid references.
I mention this because I'm trying to use that nodePath and getting crashes that look suspiciously like the kind you get when you reference deleted objects. The problem only arises when traversing PagedLOD nodes (since those nodes aren't guaranteed to stay resident). Thanks again. -gw -- Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : 703-652-4791
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