Occluder Shadows for Fast Walkthroughs of Urban Environments

Information

• Replaced by: Wonka-1999-Occ
• Publication Type: Technical Report
• Workgroup(s)/Project(s): not specified
• Date: January 1999
• Number: TR-186-2-99-03
• Keywords: occlusion culling, realtime rendering, urban environments

Abstract

This paper describes a new algorithm that employs image based rendering for fast occlusion culling in complex urban environments. It exploits graphics hardware to render and automatically combine a relatively large set of occluders. The algorithm is fast to calculate and therefore also useful for scenes of moderate complexity and walkthroughs with over 20 frames per second. Occlusion is calculated dynamically and does not rely on any visibility precalculation or occluder preselection. Speed-ups of one order of magnitude can be obtained.

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BibTeX

@techreport{Wonka-1998-O2,
  title =      "Occluder Shadows for Fast Walkthroughs of Urban Environments",
  author =     "Peter Wonka and Dieter Schmalstieg",
  year =       "1999",
  abstract =   "This paper describes a new algorithm that employs image
               based rendering for fast occlusion culling in complex urban
               environments. It exploits graphics hardware to render and
               automatically combine a relatively large set of occluders.
               The algorithm is fast to calculate and therefore also useful
               for scenes of moderate complexity and walkthroughs with over
               20 frames per second. Occlusion is calculated dynamically
               and does not rely on any visibility precalculation or
               occluder preselection. Speed-ups of one order of magnitude
               can be obtained.  ",
  month =      jan,
  number =     "TR-186-2-99-03",
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology ",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  keywords =   "occlusion culling, realtime rendering, urban environments",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/1999/Wonka-1998-O2/",
}