Fast Precomputed Ambient Occlusion for Proximity Shadows

Mattias Malmer and Fredrik Malmer
Syndicate

Ulf Assarsson
Chalmers University of Technology

Nicolas Holzschuch
ARTIS/GRAVIR IMAG INRIA

This paper appears in issue Volume 12, Number 2.
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Abstract

Ambient occlusion is used widely for improving the realism of real-time lighting simulations. We present a new method for precomputed ambient occlusion where we store and retrieve unprocessed ambient-occlusion values in a three-dimensional grid. Our method is very easy to implement, has a reasonable memory cost, and has a rendering time independent of the complexity of the occluder or the receiving scene. This makes the algorithm highly suitable for games and other real-time applications.

Author Information

Mattias Malmer, Grevgatan 53, 114 58 Stockholm, Sweden mattias@syndicate.se

Fredrik Malmer, Grevgatan 53, 114 58 Stockholm, Sweden fredrik@syndicate.se

Ulf Assarsson, Department of Computer Science and Engineering, S-412 96 Gothenburg, Sweden uffe@ce.chalmers.se

Nicolas Holzschuch, INRIA Rhône-Alpes, 655 avenue l’Europe, 38334 St-Ismier CEDEX, France Nicolas.Holzschuch@inria.fr

BibTeX Entry

@article{MalmerEtAl07,
  author = "Mattias Malmer and Fredrik Malmer and Ulf Assarsson and Nicolas Holzschuch",
  title = "Fast Precomputed Ambient Occlusion for Proximity Shadows",
  journal = "journal of graphics tools",
  volume = "12",
  number = "2",
  pages = "59-71",
  year = "2007",
}