@TechReport{SCI:Wal2005b,
  author =    "I. Wald",
  title =     "DIRmaps : Discretized Incident Radiance Maps for
              High-Quality Global Illumination Walkthroughs in
              Complex Environments",
  number =    "UUSCI-2005-010",
  year =      "2005",
  institution = "University of Utah",
  type =      "{SCI} Institute Technical Report",
  keywords =  "rtrt real-time ray tracing, vr virtual reality
              haptics",
  url =       "http://www.sci.utah.edu/publications/SCITechReports/UUSCI-2005-010.pdf",
}