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Proceedings Paper

Retro-rendering with vector-valued light: producing local illumination from the transport equation
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Paper Abstract

Many rendering algorithms can be understood as numerical solvers for the light-transport equation. Local illumination is probably the most widely implemented rendering algorithm: it is simple, fast, and encoded in 3D graphics hardware. It is not, however, derived as a solution to the light-transport equation. We show that the light-transport equation can be re-interpreted to produce local illumination by using vector-valued light and matrix-valued reflectance. This result fills an important gap in the theory of rendering. Using this framework, local and global illumination result from merely changing the values of parameters in the governing equation, permitting the equation and its algorithmic implementation to remain fixed.

Paper Details

Date Published: 16 January 2006
PDF: 7 pages
Proc. SPIE 6060, Visualization and Data Analysis 2006, 60600C (16 January 2006); doi: 10.1117/12.650855
Show Author Affiliations
David C. Banks, Florida State Univ. (United States)
Kevin M. Beason, Florida State Univ. (United States)


Published in SPIE Proceedings Vol. 6060:
Visualization and Data Analysis 2006
Robert F. Erbacher; Jonathan C. Roberts; Matti T. Gröhn; Katy Börner, Editor(s)

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