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2003

Dynamic Radiosity using Higher Order Functions Bases and Temporal Coherence

9 years 11 months ago
Dynamic Radiosity using Higher Order Functions Bases and Temporal Coherence
The computation of global illumination in a dynamic scene constitutes a real challenge in computer graphics. In radiosity algorithms, this problem is far from being easy, especially when light sources move in a complex scene. This subject becoming more and more widespread, many algorithms have been presented to solve the dynamic radiosity problem. Unfortunately, none uses intensive temporal coherence and few are efficient when dealing with a moving light source. This paper introduces a new algorithm that computes animations with any moving surfaces - even light sources. We take into account the temporal coherence between two frames to determine only the luminous energy differences between the previous global illumination solution and the new one. A mathematical development of the form factor for a translation or a rotation avoids unnecessary form factors computations. This new approach leads to an efficient and simple algorithm, similar to the classical progressive refinement metho...
Venceslas Biri, Sylvain Michelin, Didier Arqu&egra
Added 01 Nov 2010
Updated 01 Nov 2010
Type Conference
Year 2003
Where WSCG
Authors Venceslas Biri, Sylvain Michelin, Didier Arquès
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