Through a crack in the rubble, they could see the light fading.

透过瓦砾的隙缝，他们可以看到渐渐暗下去的光线。

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Another use of this effect is simulating light fading into the distance (use a gray gradient).

另外一种效果是模拟光线由近及远逐渐减弱(使用灰度渐变)。

youdao

Another use of this effect is simulating light fading into the distance (use a gray gradient).

另外一种效果是模拟光线由近及远逐渐减弱(使用灰度渐变)。

youdao