- o -

• ObjectCache : osgDB::Registry
• ObjectList : osgDB::DatabasePager
• ObjectSet : osgUtil::Optimizer::StateVisitor
• ObjectsToDeleteList : osg::DeleteHandler
• ObjectTimeStampPair : osgDB::Registry
• ObserverNodePath : osgViewer::View , osg::NodeTrackerCallback , osgGA::NodeTrackerManipulator
• OccluderList : osg::CullingSet , osg::CullStack
• offset : osg::BufferObject::Extensions , osg::Drawable::Extensions , osg::BufferObject::Extensions , osg::Drawable::Extensions
• OperationQueue : osg::GraphicsContext
• Operations : osg::OperationQueue
• OperationThreads : osgViewer::ViewerBase , osg::OperationQueue
• OverrideValue : osg::StateAttribute

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