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.
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We gratefully acknowledge the financial support of the NSERC Discovery grant program.
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Khattak, S., Hogue, A. (2019). Parallax Occlusion Mapping Using Distance Fields. In: Gavrilova, M., Chang, J., Thalmann, N., Hitzer, E., Ishikawa, H. (eds) Advances in Computer Graphics. CGI 2019. Lecture Notes in Computer Science(), vol 11542. Springer, Cham. https://doi.org/10.1007/978-3-030-22514-8_46
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DOI: https://doi.org/10.1007/978-3-030-22514-8_46
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