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Virtual Dictionary

Attenuation Map

An attenuation map is a type of texturemap layered onto an object or a whole scene, which contains signal strength details, for example of lighting, and how quickly the signal strength attenuates with distance and direction from source. They tend to be greyscale, with values between 0 (black) and 1 (white).

The map is used in pre rendered scenes to speed placement of lighting and other area effects by lookup rather than by calculation.

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(31/12/2008)
Princeton scientists have developed a new more energy efficient way to generate laser light. The finding should allow for building of miniature diagnostic devices that monitor light's attenuation in a liquid sample, potentially leading to ...


(03/07/2010)
Apple is hiring antenna engineers to work on its iPhone, the latest generation of which has triggered lawsuits from buyers upset because certain grips choke signal strength.

A posting online at jobs.apple.com said the company...


(07/04/2010)
Besides carrying digital data, optical fibers can also transmit radio signals for wireless communication. So-called "radio-over-fiber" technology has been used to provide access to radio dead zones, but new research is looking into using ...


(19/10/2009)
t may look like little more than fishing line, but plastic optical fibre or POF promises to revolutionise high-speed last-mile communications networks. Its evolution is being aided by groundbreaking research in Europe.

Plasti...


(17/01/2010)
Stevens Institute of Technology's Dr. Henry Du, Professor and Director of the Department of Chemical Engineering and Materials Science, together with Dr. Svetlana Sukhishvili, Professor of Chemistry and Co-Director of Stevens' Nanotechnol...