Portals and mirrors: simple, fast evaluation of potentially visible sets

  • Authors:
  • David Luebke;Chris Georges

  • Affiliations:
  • Department of Computer Science, University of North Carolina at Chapel Hill, CB# 3175 Sitterson Hall, UNC, Chapel Hill, NC;Department of Computer Science, University of North Carolina at Chapel Hill, CB# 3175 Sitterson Hall, UNC, Chapel Hill, NC

  • Venue:
  • I3D '95 Proceedings of the 1995 symposium on Interactive 3D graphics
  • Year:
  • 1995

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Abstract

We describe an approach for determining potentially visible sets in dynamic architectural models. Our scheme divides the models into cells and portals, computing a conservative estimate of which cells are visible at render time. The technique is simple to implement and can be easily integrated into existing systems, providing increased interactive performance on large architectural models.