| osg | The core osg library provides the basic scene graph classes such as Nodes, State and Drawables, and maths and general helper classes |
| osgDB | The osgDB library provides support for reading and writing scene graphs, providing a plugin framework and file utility classes |
| osgFX | The osgFX is a NodeKit library that extends the core scene graph to provide a special effects framework |
| osgGA | The 'GA' in osgGA stands for 'GUI Abstraction'; the osgGA namespace provides facilities to help developers write the glue to allow the osg to work with varying window systems |
| osgIntrospection | The osgIntrospection library provides the an introspection/reflection framework for non intrusive run-time querying and calling of class properties and methods |
| osgParticle | The osgParticle is a NodeKit library that extends the core scene graph to support particle effects |
| osgProducer | The osgProducer is a utility library integrates OpenProducer to provide a general purpose viewer classes |
| osgSim | The osgSim is a NodeKit library that extends the core scene graph to support nodes and drawables that specific to the visual simulation, such a navigational light point support and OpenFlight style degrees of freedom transform |
| osgTerrain | The osgTerrain is a utility library that provides geospecifc terrain database generation support |
| osgText | The osgText is a NodeKit library that extends the core scene graph to support high quality text |
| osgUtil | The osgUtil library provides general purpose utility classes such as update, cull and draw traverses, scene graph operators such a scene graph optimisation, tri stripping, and tessellation |
| osgUtx | The osgUtx is a unit test framework |