但是电视影像需要有细微的光影变化。

But TV images require subtle gradations of light and shade.

《柯林斯英汉双解大词典》

当你在游戏的同时，你的车和眼睛都可以感受到光影变化。

That changes the light on the car and change the light in your eyes as you're racing.

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重叠设置盒子和内部混凝土的目的是在内部产生复杂的光影变化。

The purpose of these overlays is to allow light and shade to move around the inside.

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