Attenuation

在真實世界中,光線的強度會隨距離的增大而遞減。這是因為受到了空氣中微粒的衍射影響,而在3D Studio MAX中,場景處於理想的“真空”中,理論上無這種現象出現。但這種現象與現實世界不符,因此為了達到模擬真實的效果,在燈光中加入該選項,就能人為的產生這種效果!
In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance, sunlight is attenuated by dark glasses, and X-rays are attenuated by lead.
In electrical engineering and telecommunications, attenuation affects the propagation of waves and signals in electrical circuits, in optical fibers, as well as in air (radio waves).
在物理上。attenuation(衰減)指的是某種流體通過某種物體時密度上的損失。例如。陽光通過黑色鏡子時的衰減。X射線通過鉛的時候。
電子工程、計算機網路、通訊方面,衰減影響光波和信號的繁殖。

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