Comparison of Volumetric Illumination Methods by Considering the Underlying Optical Models

Neda Rostamzadeh, Daniel Jönsson, Timo Ropinski
SIGRAD - 2013
In this paper, we study and analyze six state-of-the-art volumetric illumination models, in order to determine their differences with respect to the underlying theoretical models and numerical problems potentially arising during implementation. The chosen models are half angle slicing, directional occlusion shading, multidirectional occlusion shading, shadow volume propagation, spherical harmonic lighting and dynamic ambient occlusion. We put these models into a unified mathematical framework, which allows to compare them among each other as well as to the global volume rendering equation. We will discuss the mathematical differences of the compared models and describe the numerical implications of the simplifications made by each method.

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BibTex references

@inproceedings{RJR13,
  author       = {Rostamzadeh, Neda and J{\"o}nsson, Daniel and Ropinski, Timo},
  title        = {{Comparison of Volumetric Illumination Methods by Considering the Underlying Optical Models}},
  booktitle    = {SIGRAD},
  year         = {2013}
}

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