The attenuation coefficient is a luminosity texturemap that is applied, not to the objects themselves, but to the virtual world, superimposed over world cells, as a greyscale grid for use by raycasting or raytracing algorithms. Its purpose is to let the render engine know the atmospheric light absorption traits of that particular cell, to factor into other coefficients for calculating reflective and source light levels passing through.
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A coating filled with tiny lubricant capsules could come to the rescue when metal surfaces dry out and friction builds up.
A ball bearing – or a slide bearing around an axle – needs lubricating at all times. If a leak causes ...
T-Mobile may well be the first mobile phone company, to launch a service which switches seamlessly mid-call between mobile phone masts and Wi-Fi connectivity as the signal attenuation raises and lowers for each service.
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 ...
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...
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 ...