OpenSG is a portable scenegraph system to create realtime graphics programs, e.g. for virtual reality applications. It is developed following Open Source (LGPL) principles and can be used freely. It runs on IRIX, Windows and Linux and is based on OpenGL^?. Read the motivation to get an overview of the special features of the system and why we decided to start a new initiative.

OpenSG is not supposed to be a complete VR system. It is the rendering basis on top of which VR systems can be built. Rendering is a rather well defined task, which we can understand and judge based on our experience in the field. VR systems, on the other hand, have not evolved far enough to converge on a widely accepted approach to solve their problems.