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Advanced multi-frame rate rendering techniques

Springer, Jan P.; Lux, Christopher; Reiners, Dirk; Froehlich, Bernd

Authors

Jan P. Springer

Christopher Lux

Dirk Reiners

Bernd Froehlich



Abstract

Multi-frame rate rendering is a parallel rendering technique that renders interactive parts of the scene on one graphics card while the rest of the scene is rendered asynchronously on a second graphics card. The resulting color and depth images of both render processes are composited and displayed. This paper presents advanced multi-frame rate rendering techniques, which remove limitations of the original approach and reduce artifacts. The interactive manipulation of light sources and their parameters affects the entire scene. Our multi-GPU deferred shading splits the rendering task into a rasterization and lighting pass and distributes the passes to the appropriate graphics card to enable light manipulations at high frame rates independent of the geometry complexity of the scene. We also developed a parallel volume rendering technique, which allows the manipulation of objects inside a translucent volume at high frame rates. Due to the asynchronous nature of multi-frame rate rendering artifacts may occur during the migration of objects from the slow to the fast graphics card, and vice versa. We show how proper state management can be used to avoid these artifacts almost completely. These techniques were developed in the context of a single-system multi-GPU setup, which considerably simplifies the implementation and increases performance. © 2008 IEEE.

Publication Date Sep 1, 2008
Journal Proceedings - IEEE Virtual Reality
Peer Reviewed Peer Reviewed
Pages 177-184
ISBN 9781424419715
APA6 Citation Springer, J. P., Lux, C., Reiners, D., & Froehlich, B. (2008). Advanced multi-frame rate rendering techniques. doi:10.1109/VR.2008.4480770
DOI https://doi.org/10.1109/VR.2008.4480770
Keywords REF 2014 submission
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