Optimal Absorption Probabilities for Random Walk Radiosity

Sbert, Mateu

doi:10.1006/gmod.1999.0513

Cited by 1 publication

(2 citation statements)

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“…So, T o;d and T i;p are adjoint operators under this simple inner product and incident power dP i and incident power importance dJ i are adjoint functions of radiosity B and exitant diffuse importance I o . Smits et al [67], Sbert et al [61], [62], and Bekaert [5] showed a discretized version of this. It can be shown in a similar manner that…”

Section: Mixed Diffuse and Power Operators And Functionsmentioning

confidence: 99%

“…So, T o;p and T i;d are adjoint operators, and irradiance E and incident diffuse importance I i are adjoint functions of exitant power dP o and exitant power importance dJ o . This was used by Pattanaik and Mudur [51], [54], [56] and shown formally by Sbert et al [61], [62] and Bekaert [5] for the discrete case.…”

Section: Mixed Diffuse and Power Operators And Functionsmentioning

confidence: 99%

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Adjoints and importance in rendering: An overview

Christensen¹

2003

IEEE Trans. Visual. Comput. Graphics

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This survey gives an overview of the use of importance, an adjoint of light, in speeding up rendering. The importance of a light distribution indicates its contribution to the region of most interest-typically the directly visible parts of a scene. Importance can therefore be used to concentrate global illumination and ray tracing calculations where they matter most for image accuracy, while reducing computations in areas of the scene that do not significantly influence the image. In this paper, we attempt to clarify the various uses of adjoints and importance in rendering by unifying them into a single framework. While doing so, we also generalize some theoretical results-known from discrete representations-to a continuous domain.

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Section: Mixed Diffuse and Power Operators And Functionsmentioning

confidence: 99%