The zonal method for calculating light intensities in the presence of a participating medium
- 1 August 1987
- journal article
- Published by Association for Computing Machinery (ACM) in ACM SIGGRAPH Computer Graphics
- Vol. 21 (4), 293-302
- https://doi.org/10.1145/37402.37436
Abstract
The zonal method for calculating radiative transfer in the presence of a participating medium is applied to the generation of realistic synthetic images. The method generalizes the radiosity method and allows for emission, scattering, and absorption by a participating medium. The zonal method accounts for volume/surface interactions which have not been previously included, as well as volume/volume and surface/surface interactions. In addition, new algorithms, based on the hemi-cube formulation, are introduced for calculating the geometric factors required by the zonal method.Keywords
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