[osg-users] some questions about Frame Scheme ON_DEMAND

[Gianni Ambrosio]

Hi All,
can anybody tell me please if there is a way to know if the OSG scene has been modified (i.e. node added or removed) so that I can check if osgViewer::ViewerBase::frame() must be called in a setRunFrameScheme(ON_DEMAND) case?

Regards
Gianni

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