title =      "Optimized Subdivisions for Preprocessed Visibility",
  author =     "Oliver Mattausch and Ji{\v r}{\' i} Bittner and Peter
               Wonka and Michael Wimmer",
  year =       "2007",
  abstract =   "This paper describes a new tool for preprocessed visibility.
               It puts together view space and object space partitioning in
               order to control the render cost and memory cost of the
               visibility description generated by a visibility solver. The
               presented method progressively refines view space and object
               space subdivisions while minimizing the associated render
               and memory costs. Contrary to previous techniques, both
               subdivisions are driven by actual visibility information. We
               show that treating view space and object space together
               provides a powerful method for controlling the efficiency of
               the resulting visibility data structures.",
  pages =      "335--342",
  month =      may,
  booktitle =  "Proc. of Graphics Interface",
  editor =     "Christopher G. Healey and Edward Lank",
  isbn =       "978-1-56881-337-0",
  publisher =  "Canadian Human-Computer Communications Society",
  location =   "Montreal, Canada",
  keywords =   "visibility preprocessing, potentially visible sets, view