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Parallax Occlusion Mapping Using Distance Fields

  • Saad KhattakEmail author
  • Andrew Hogue
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11542)

Abstract

Parallax occlusion mapping (POM) is a technique to introduce 3D definition using a depth map instead of adding new geometry. The technique relies on ray tracing with higher samples resulting in a better approximation, especially at steeper angles. The distance between each sample is constant and it is possible to skip over fine detail at lower sample count.

Our technique relies on a distance field (DF) instead of a depth map. This allows us to ray march through the field and lower the sample count considerably. We can get good results even with a single sample. Comparable results are obtained by less than half the samples of the industry standard POM approach.

Keywords

Parallax occlusion mapping Video games Computer graphics 

Notes

Acknowledgements

We gratefully acknowledge the financial support of the NSERC Discovery grant program.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Tuque GamesMontrealCanada
  2. 2.Ontario Tech UniversityOshawaCanada

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