A simple editing trick stopped the camera so that a prop man could replaced an unlit saber (which is just a handle) with a lit saber (one with a blade attached).

简单的剪辑技巧能使摄影机停顿，从而让一名道具管理员把没有发光的剑(只是一把剑柄)替换为发光的剑(插上了剑刃的剑柄)。

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To simplify the explanation, just think of a situation when all your objects have a simple white color and your scene is lit equally from all directions by a white light.

简单的来解释，那就想象一下这样的一个情形：当场景中所有的物体都是单一白色并且是由一个白色灯光来产生均匀的直接照明，那么基本上，结果就是得到一个苍白的图像。

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About three hours by boat from Iquitos is Muyuna Amazon Lodge, where simple, comfortable cabins are lit by kerosene lamps in lieu of electricity.

BBC: Into Peru��s Amazonian heart of darkness

And Poulton's "Hard Disk" is simple yet chic--a polished black rectangle complete with a bottom-lit LED that gives off an ambient blue glow.

FORBES: Design