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A system architecture for flexible rendering back-ends in distributed virtual reality applications

: Schwenk, Karsten; Voss, Gerrit; Behr, Johannes


Kuijper, Arjan (Ed.); Sourin, A. (Ed.); Fellner, Dieter W. (General Chairs) ; Fraunhofer-Institut für Graphische Datenverarbeitung -IGD-, Darmstadt; TU Darmstadt; European Association for Computer Graphics -EUROGRAPHICS-; Institute of Electrical and Electronics Engineers -IEEE-; International Federation for Information Processing -IFIP-, Working Group 5.10 Computer Graphics:
International Conference on Cyberworlds, CW 2012. Proceedings : 25-27 Sept. 2012, Darmstadt, Germany
Los Alamitos/Calif.: IEEE Computer Society Conference Publishing Services, 2012
ISBN: 978-0-7695-4814-2
ISBN: 978-1-4673-2736-7 (Print)
DOI: 10.1109/CW.2012.55
International Conference on Cyberworlds (CW) <11, 2012, Darmstadt>
Fraunhofer IGD ()
distributed network graphic; virtual reality (VR)

We describe an approach to integrate multiple rendering back-ends under a common application layer for distributed systems. The primary goal was to find a practical and non-intrusive way to use potentially very different rendering back-ends in heterogeneous computing environments without impairing their strengths and without burdening the backends or the application with details of the cluster environment. Our approach is based on a mediator layer that can be plugged into the OpenSG infrastructure. This design allows us to elegantly extent OpenSG's low-level multithreading and clustering capabilities to our system. It also allows us to sync incremental changes very efficiently. We demonstrate results and problems with two case studies.