A real-time shadow approach for an augmented reality application using shadow volumes

  • Authors:
  • Michael Haller;Stephan Drab;Werner Hartmann

  • Affiliations:
  • Upper Austria University of Applied Sciences, Hagenberg, Austria;Upper Austria University of Applied Sciences, Hagenberg, Austria;JK University of Linz, Linz, Austria

  • Venue:
  • Proceedings of the ACM symposium on Virtual reality software and technology
  • Year:
  • 2003

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Abstract

Shadows add a level of realism to a rendered image. Moreover, they are used as visual clues to determine spacial relationships and real-time shadows will gain importance in current real-time computer graphics applications for this reason. Twenty-five years ago, Crow published the shadow volume approach for determining shadowed regions of a scene. In this paper we present a modified real-time shadow volume algorithm that can be used in an Augmented/Mixed Reality application. Finally, the proposed concepts provide a novel sense of visual output of an AR application.