Extending a distributed virtual reality system with exchangeable rendering back-ends

Authors:
Karsten Schwenk;Gerrit Voβ;Johannes Behr;Yvonne Jung;Max Limper;Pasquale Herzig;Arjan Kuijper
Affiliations:
Fraunhofer IGD, Darmstadt, Germany and TU Darmstadt, Darmstadt, Germany;Fraunhofer IDM@NTU, NTU, Singapore, Singapore;Fraunhofer IGD, Darmstadt, Germany;Fraunhofer IGD, Darmstadt, Germany;Fraunhofer IGD, Darmstadt, Germany and TU Darmstadt, Darmstadt, Germany;Fraunhofer IGD, Darmstadt, Germany;Fraunhofer IGD, Darmstadt, Germany and TU Darmstadt, Darmstadt, Germany
Venue:
The Visual Computer: International Journal of Computer Graphics
Year:
2013

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Abstract

We present 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 nonintrusive way to use potentially very different renderers in heterogeneous computing environments without impairing their strengths and without burdening the back-ends or the application with details of the cluster environment. Our approach is based on a mediator layer that handles multithreading, clustering, and the synchronization between the application's and the back-end's scene. We analyze the proposed approach with an implementation for a state-of-the-art distributed VR/AR system. In particular, we present two case studies and an example application.