For the most convincing look, assume the light source to be at the top left of the page - the shadow should simply be a thick grey line along the bottom and up the right edge of your shape.

为了更好看，在页面的左上方加上光源-阴影应该是沿着你形状的右边缘的上部和底部勾勒出粗的灰线条。

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On the left you can easily see the huge shadow of the mountain's conical shape.

你能轻易看出左边是山峰的巨大圆锥形倒影。

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Next I will create a shadow at the bottom of the navigation. To create the shadow you will need to select Ellipse Tool, than create a similar shape.

接下来，在导航栏的底部添加阴影。为了创建阴影，选择椭圆工具，添加类似的形状。

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You can see the shadow of its perfect conic shape projected on the valley below at the break of dawn.

BBC: Scaling the Ecuadorean Andes

In other photos, a wreath in the shape of a Christmas tree dangles above highway construction, and a "Happy Holidays" banner casts its shadow on a highway empty except for a single truck.

WSJ: rom Lee Friedlander at Janet Borden Gallery