OpenSG
- Open source portable scenegraph system to create realtime graphics programs. Runs on IRIX, Windows and Linux and based on OpenGL.
- http://www.opensg.org
GizmoSDK - Saab Training Systems AB commercial scene graph. - http://www.gizmosdk.com/
OSG OpenSceneGraph - OpenGL portable, 3D high performance graphics toolkit for applications such as flight simulators, games, virtual reality or scientific visualization. C++ object oriented framework on top of OpenGL running on Windows, OSX, Linux, IRIX, Solaris and FreeBSD - http://www.openscenegraph.com/
OpenRM - An OpenGL scene graph API used for developing high performance and portable 3D/2D/stereo graphics and visualization applications. [Open source, MPL] - http://www.openrm.org/
Espresso3D - Real-time 3D engine for the Java programming language. E3D uses OpenGL for its graphics rendering and OpenAL for audio. - http://www.espresso3d.com/
SGL - C++ cross platform 3D scene graph library on top of OpenGL - http://sgl.sourceforge.net/
RM Scene Graph - Cross-platform, OpenGL scene graph API for creating graphics and visualization applications. - http://www.r3vis.com/RM/