Publication Type:Conference Paper
Source:Computer Graphics International (CGI), Springer, Cham., Volume Advances in Computer Graphics. CGI 2019. Lecture Notes in Computer Science, vol. 11542, Calgary, AB (2019)
This paper examines two approaches to improve the realism of volume scattering functions. The first uses a convex combination of multiple Henyey-Greenstein distributions to approximate a more complicated scattering distribution, while the second allows negative coefficients. The former is already supported in some renderers, the latter is not and carries a significant performance penalty. Chromatic scattering is also explored, and found to be beneficial in some circumstances. Source code is publicly available under an open-source license.