Poisson Disk Point Sets by Hierarchical Dart Throwing

  • Authors:
  • Kenric B. White;David Cline;Parris K. Egbert

  • Affiliations:
  • e-mail: cavkenr@gmail.com;Brigham Young University, Arizona State University, e-mail: clinedav@gmail.com;Brigham Young University, e-mail: egbert@cs.byu.edu

  • Venue:
  • RT '07 Proceedings of the 2007 IEEE Symposium on Interactive Ray Tracing
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

Poisson disk point sets are “ideally” generated through a process of dart throwing. The naive dart throwing algorithm is extremely expensive if a maximal set is desired, however. In this paper we present a hierarchical dart throwing procedure which produces point sets that are equivalent to naive dart throwing, but is very fast. The procedure works by intelligently excluding areas known to be fully covered by existing samples. By excluding covered regions, the probability of accepting a thrown dart is greatly increased. Our algorithm is conceptually simple, performs dart throwing in O(N) time and memory, and produces a maximal point set up to the precision of the numbers being used.