The on-duty lighting is suitable for making use of part of normal lighting with independent control or part of or whole emergency lighting.

值班照明宜利用正常照明中能单独控制的一部分或利用应急照明的一部分或全部；

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In some special cases, when the normal lighting is extinguished because of the fault, the accident lighting can provide convenience for the staff to deal with the faults and the equipment transfer.

在某些特殊情况下当正常照明因故障熄灭后，事故照明能够为工作人员及时处理故障、设备转移提供了便利。

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Then they came out a second time in normal lighting and that was when the magic happened.

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Richard Mall received perhaps the greatest applause of the night, for his invention of the Matthews Max Menace Arm, a portable device which allows studio lights to be moved and positioned all over a set, often where normal lighting cannot be used because of on-site restrictions or other difficult conditions.

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So, this approach requires one more layer of effort: converting the height map (or at least its visible tiles) into a "normal map" which is smooth and natural enough to be subjected to lighting effects and then displayed on screen.

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