The ImageSwitcher: a proposed system architecture designed to reduce VR lag

  • Authors:
  • David C. Banks

  • Affiliations:
  • Department of Computer Science, Mississippi State University

  • Venue:
  • EGGH'96 Proceedings of the Eleventh Eurographics conference on Graphics Hardware
  • Year:
  • 1996

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Abstract

Latency contributes to image error and to motion sickness in headtracked graphics displays. We attack the problem of latency by exploiting parallel scene generation, using multiple graphics engines to render images corresponding to a cloud of viewpoints. The real-time position of a 3D tracker is used to select among several just-generated images, rather than to generate a new image, for each frame. The system's scalable architecture is comprised of off-the-shelf components. When future PC-class machines offer inexpensive high-speed 3D graphics, the design of the system will become economically attractive.