Real-Time Global Illumination for Point Cloud Scenes

Reinhold Preiner, Michael Wimmer
Real-Time Global Illumination for Point Cloud Scenes
Computer Graphics & Geometry, 12(1):2-16, 2010.

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Abstract

In this paper we present a real-time global illumination approach for illuminating scenes containing large point clouds. Our approach is based on the distribution of Virtual Point Lights (VPLs) in the scene, which are then used for the indirect illumination of the visible surfaces, using Imperfect Shadow Maps for visibility calculation of the VPLs. We are able to render multiple indirect light bounces, where each light bounce accounts for the transport of both the diffuse and the specular fraction of the reflected light.

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BibTeX

@article{preiner_2010_GIPC,
  title =      "Real-Time Global Illumination for Point Cloud Scenes",
  author =     "Reinhold Preiner and Michael Wimmer",
  year =       "2010",
  abstract =   "In this paper we present a real-time global illumination
               approach for illuminating scenes containing large point
               clouds. Our approach is based on the distribution of Virtual
               Point Lights (VPLs) in the scene, which are then used for
               the indirect illumination of the visible surfaces, using
               Imperfect Shadow Maps for visibility calculation of the
               VPLs. We are able to render multiple indirect light bounces,
               where each light bounce accounts for the transport of both
               the diffuse and the specular fraction of the reflected
               light.",
  journal =    "Computer Graphics & Geometry",
  number =     "1",
  volume =     "12",
  pages =      "2--16",
  keywords =   "virtual point lights, imperfect shadow maps, point
               rendering, point clouds, global illumination, VPL, ISM",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2010/preiner_2010_GIPC/",
}