Layered Environment-Map Impostors for Arbitrary Scenes

Stefan Jeschke, Michael Wimmer, Heidrun Schumann
Layered Environment-Map Impostors for Arbitrary Scenes
TR-186-2-02-12, May 2002 [ paper]
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Replaced by Jeschke-2002-LEMA.

Abstract

This paper presents a new impostor-based approach to accelerate the rendering of very complex static scenes. The scene is partitioned into viewing regions, and a layered impostor representation is precalculated for each of them. An optimal placement of impostor layers guarantees that our representation is indistinguishable from the original geometry. Furthermore the algorithm exploits common graphics hardware both during preprocessing and rendering. Moreover the impostor representation is compressed using several strategies to cut down on storage space.

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@techreport{Jeschke-2002-LEM,
  title =      "Layered Environment-Map Impostors for Arbitrary Scenes",
  author =     "Stefan Jeschke and Michael Wimmer and Heidrun Schumann",
  year =       "2002",
  abstract =   "This paper presents a new impostor-based approach to
               accelerate the rendering of very complex static scenes. The
               scene is partitioned into viewing regions, and a layered
               impostor representation is precalculated for each of them.
               An optimal placement of impostor layers guarantees that our
               representation is indistinguishable from the original
               geometry. Furthermore the algorithm exploits common graphics
               hardware both during preprocessing and rendering. Moreover
               the impostor representation is compressed using several
               strategies to cut down on storage                  space.",
  address =    "Favoritenstrasse 9-11/186, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  month =      may,
  number =     "TR-186-2-02-12",
  keywords =   "environment maps, impostors, image-based rendering,
               walkthroughs, virtual environments",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/2002/Jeschke-2002-LEM/",
}