Mathematical Approximation for Real-Time Lighting Rendering Through Participating Media

Authors:
P. Lecocq;A. Kemeny;S. Michelin;D. Arquès
Affiliations:
-;-;-;-
Venue:
PG '00 Proceedings of the 8th Pacific Conference on Computer Graphics and Applications
Year:
2000

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Abstract

Many shading models are able to provide realistic rendering of lighting effects under various atmospheric conditions but computational times are often expensive. This paper proposes a method to render lighting effects within participating media in real-time on a graphics workstation. It consists of mathematical approximations based on a re-formulation of the light transport equation considering atmospheric scattering with light sources described by their luminous intensity distribution. Hardware capabilities of graphics computer boards are used to accelerate parts of the rendering process.