Description Resource Path Location Type
cannot dynamic_cast 'm_billboard' (of type 'class osg::ref_ptr<osg::Billboard>') to type 'class osg::Geode*' (source is not a pointer)
报这个错误
osg::ref_ptr<osg::Billboard> m_billboard = new osg::Billboard;
osg::Geode* billboard = dynamic_cast<osg::Geode*>(m_billboard);