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CHAPTER 8
238
Using Layers
Using a mask to hide or show a layer
You can obscure an entire layer or layer set,
or just a selected part of it, using a mask or a layer
clipping path.
To add a mask that shows or hides the entire layer:
Choose Select > Deselect to clear any selection
1
borders in the image.
2
In the Layers palette, select the layer or layer set
to which to add a mask.
3
Do one of the following:
•
To create a mask that reveals the entire layer,
click the New Layer Mask ( ) button at the
bottom of the Layers palette.
•
To create a mask that hides the entire layer,
Alt click (Windows) or Option-click (Mac OS)
the New Layer Mask button.
You can also use the Layer menu to hide or reveal
an entire layer.
To add a mask that shows or hides a selection:
1
In the Layers palette, select the layer or layer set
to which to add a mask.
2
To create a mask that reveals or hides the
selected area of a layer, select the desired area in the
image, using the selection tools, then click the
New Layer Mask button ( ), and the selected area
is revealed.
You can also use the Layer menu to hide or show
a selection.
After creating a layer mask, you can use the
painting tools to paint black over the area of the
mask you want to hide or paint white over the area
you want to reveal. (See "Editing a layer mask" on
page 239.)
For information on viewing the contents of the
layer mask channel, see "Viewing layer masks" on
page 240.
To add a layer clipping path that shows or hides the
entire layer (Photoshop):
In the Layers palette, select the layer to which
1
you want to add a layer clipping path.
Do one of the following:
2
To create a layer clipping path that reveals the
•
entire layer, choose Layer > Add Layer Clipping
Path > Reveal All.
To create a layer clipping path that hides the
•
entire layer, choose Layer > Add Layer Clipping
Path > Hide All.
To add a layer clipping path that shows the contents of
a shape (Photoshop):
In the Layers palette, select the layer to which to
1
add a layer clipping path.
Select a path or use one of the shape or pen tools
2
to draw a work path. (See "Editing paths
(Photoshop)" on page 172.)
Choose Layer > Add Layer Clipping Path >
3
Current Path.
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