EFFICIENT ANALYTICAL INTEGRATION OF SINGLE SCATTERING FUNCTION

Umashankar Pradhan, Subodh Kumar

2011

Abstract

Light scattering through a participative medium has a significant impact on display. However, accurate and efficient simulation of scattering remains challenging. Monte Carlo or numerical integration techniques are commonly employed to solve the scattering equation. Single scattering is a common approximation that provides satisfactory results in many cases. Analytical integration of scattering under certain assumptions have been achieved by pre-computing a table of values. We present a new approximation to the single scattering equation that is easily integrable in real time. We analyze the error of this approximation and show that the numerical error is insignificant. The images are virtually indistinguishable from those obtained by the more accurate integration.

Paper Citation

in Harvard Style

Pradhan U. and Kumar S. (2011). EFFICIENT ANALYTICAL INTEGRATION OF SINGLE SCATTERING FUNCTION . In Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011) ISBN 978-989-8425-45-4, pages 193-199. DOI: 10.5220/0003373901930199

in Bibtex Style

@conference{grapp11,
author={Umashankar Pradhan and Subodh Kumar},
title={EFFICIENT ANALYTICAL INTEGRATION OF SINGLE SCATTERING FUNCTION},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011)},
year={2011},
pages={193-199},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003373901930199},
isbn={978-989-8425-45-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011)
TI - EFFICIENT ANALYTICAL INTEGRATION OF SINGLE SCATTERING FUNCTION
SN - 978-989-8425-45-4
AU - Pradhan U.
AU - Kumar S.
PY - 2011
SP - 193
EP - 199
DO - 10.5220/0003373901930199