Then add a Gaussian blur filter to the layer.

然后为图层添加一个高斯模糊滤镜。

youdao

Soften the shadow by adding Gaussian Blur filter.

柔化阴影，加入高斯模糊滤镜。

youdao

I also duplicated the dark paths layer and applied a Gaussian Blur filter.

我又复制黑色路径图层并使用了一个高斯模糊。

youdao

The first filter that is applied to the height map is a simple Gaussian blur, which the GPU handles with ease, but which -- if left to its own devices -- would simply smooth out all the dramatic extremes in the height map and leave us with a bunch of bland rolling hills.

ENGADGET: Primed: The crazy science of GPU compute Mobile