After, apply a Drop Shadow effect to add a little blur around the wrinkle.

之后，加上投影效果，使皱纹周围产生一点模糊。

youdao

Soften the shadow by adding Gaussian Blur filter.

柔化阴影，加入高斯模糊滤镜。

youdao

The structure for box shadow is same as the text-shadow property: x-offset, y-offset, blur, and color.

盒阴影的结构和text - shadow相同，x轴偏移，y轴偏移，模糊，颜色。

youdao

Easier said than done, since it might not be immediately obvious if a blur on the screen is a burglar--or simply a shadow from a moving car.

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