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Virtual Dictionary

Photon Mapped Caustics

Photon mapping is a version of raytraced lighting, that is neither raytraced nor raycast. Instead, it combines the two methods. Rays from the light source and rays from the camera are traced independently of one another, until they meet in the middle ? or a set length is exceeded, not meeting another beam. Those that meet and are travelling in the same direction are kept, all others are discarded. The process continues until all rays have met a partner.

Photon mapped caustics applies this process to refracted light. In the same manner as normal caustics is a completely separate lighting procedure after the main raytracing is done, the caustics may be photon mapped even if the main raytrace was not. This does create superior effects to normal raytraced caustics, even if the number of calculations required is comparatively crippling.

See Also: Photon Mapping, Caustics

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Related Dictionary Entries for Photon Mapped Caustics:

Caustic Shading


Photon Mapped Caustics

Photon Mapping


Resources in our database matching the Term Photon Mapped Caustics:

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Inexpensive Underwater Caustics Using Cg
A look at creating aesthetically pleasing, realistic water movements, using caustics - for ultra-realism for low processing power.

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Ultrasensitive Imaging: Hunting Every Photon
As the demands for precise imaging in fields such as medicine, astronomy, and real-time machine vision in hostile environments continue to increase, so the demands placed on imaging equipment become ever more stringent. An imaging method based on Single Photon Avalanche Photodiodes (SPAD) offers the potential to ease this bottleneck greatly.

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Mapping Intelligence to the Brain
Intelligence. We understand the concept, and the meaning of this word, but where in the brain, precisely, is intelligence actually located? Until recently, we did not really, have a clue. Now, using perhaps the most common sense approach possible, from neuroscientists at the California Institute of Technology have mapped the cognitive zones of the human brain.


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Theoretical physicist Filippo Miatto and colleagues from the University of Strathclyde, Glasgow, UK, have found a new method of reliably assessing the information contained in photon pairs used for applications in cryptography and quantum c...

By demonstrating that an artificial atom embedded in a transmission line can route a single photon from an input port to one of two output ports, physicists have built the first router working at the single-photon level. The single-photon r...

Today's solar cells lose much of the energy in light to heat. Now researchers at Cornell University have made a photovoltaic cell out of a single carbon nanotube that can take advantage of more of the energy in light than conventional phot...

The concepts of quantum technology promise to achieve more powerful information processing than is possible with even the best possible classical computers. To actually build efficient quantum computers remains a significant challenge in pr...

In an important step towards more practical quantum information processing, researchers from the National Institute of Standards and Technology (NIST), the University of California, San Diego; and the Politecnico di Milano in Milan, Italy, ...