Now I will apply a layer mask (make sure that your layer is selected).
好了，添加一个图层蒙版(保证你的图层是被选中状态)。
That's why I will apply a layer mask.
因此要添加图层蒙版。
Click on the Add a layer mask button at the bottom of the Layers Panel and select the Brush Tool (b).
点击图层面板底部的添加图层蒙版按钮，并选中画笔工具(B)。
I added a layer mask to rendering 2 and began selectively erasing areas that I didn't want showing through.
我在第二个渲染图中添加了一个图层，开始有选择性地擦除我不想呈现出来的区域。
For experienced Photoshop users, I would suggest using a layer mask instead of the eraser tool to maintain more editability.
对于有经验的Ps用户，我建议使用一个图层蒙版，而不是橡皮擦工具，这样可编辑性会更强。
Now we are going to mask out the top right corner of the moon. Click on the Add a layer mask button at the bottom of the Layers Panel.
现在，我们将要遮盖月亮的右上角。点击图层面板底部的添加图层蒙版按钮。
Create a layer Mask for this layer and fill it with black. This will hide all the effect.
为该层建立一个图层蒙版并填充黑色，它将隐藏所有的效果。
Create a layer Mask for this layer and fill it with black. This will hide all the effect.
为该层建立一个图层蒙版并填充黑色，它将隐藏所有的效果。
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