filename     : p_Nae03.pdf
entry        : inproceedings
pages        : 125-133
year         : 2003
title        : The blue-c Distributed Scene Graph
author       : Martin Naef, Edouard Lamboray, Oliver Staadt, Markus Gross
booktitle    : Proceedings of IPT/EGVE 2003
editor       : J. Deisinger, A. Kunz
publisher    : ACM Press
language     : english
month        : Mai
keywords     : Distributed graphics, scene graph, collaborative virtual environments, networked virtual reality
abstract     : In this paper we present a distributed scene graph architecture for use in the blue-c, a novel collaborative immersive virtual environment. We extend the widely used OpenGL Performer toolkit to provide a distributed scene graph maintaining full synchronization down to vertex and texel level. We propose a synchronization scheme including customizable, relaxed locking mechanisms. Our distributed scene graph includes both locally stored nodes for static scene data as well as nodes shared across multiple sites, thus minimizing syn­chronization overhead. We discuss the performance and demonstrate the functionality of our toolkit with two prototype applications in our high-performance virtual reality and visual simulation environment.