A CAVE system for interactive modeling of global illumination in car interior
Proceedings of the ACM symposium on Virtual reality software and technology
Image synthesis using adjoint photons
GI '06 Proceedings of Graphics Interface 2006
High quality rendering using ray tracing and photon mapping
ACM SIGGRAPH 2007 courses
A framework for precomputed and captured light transport
ACM Transactions on Graphics (TOG)
Advanced global illumination using photon mapping
ACM SIGGRAPH 2008 classes
Importance Driven Automatic Color Design for Direct Volume Rendering
Computer Graphics Forum
Metropolis photon sampling with optional user guidance
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
Bidirectional instant radiosity
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
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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.