[osg-users] CullVisitor object not getting properly deleted

[Robert Osfield]

Hi Rick,

After a preplexing day looking at how the osgUtiil::CullVisitor,
osg::Camera and RenderStageCache were all interacting via the
osg::Observer system I finally fixed the problem with the crash that
I've see with the osgoit and osgprerender examples.   As the crash
looks similar to what you saw there is reasonable chance that the
changes should work for you too.

I have checked my fix into master and OpenSceneGraph-3.4.

Robert.