Adobe PHOTOSHOP 5.0 User Manual page 286

278 CHAPTER 11
Using Layers
For information on viewing the contents of the
layer mask channel, see "Viewing layer masks" on
page 279.
To edit a layer mask:
1 Click the layer mask thumbnail in the Layers
palette to make it active (the mask icon appears to
the left of the layer thumbnail).
2 Select any of the editing or painting tools.
Because the layer mask is a grayscale alpha
channel, the foreground and background colors
default to grayscale values when the mask is active.
As you edit, the mask thumbnail displays the
changes.
Do one of the following:
3
To hide the layer and add to the mask, paint the
•
mask with black.
Head and background painted with black
To reveal the layer and subtract from the mask,
•
paint the mask with white.
Head painted with white
To make the layer partially visible, paint the
•
mask with gray.
Neck painted with gray
To edit the layer instead of the layer mask, make
the layer active by clicking its thumbnail in the
Layers palette. The paintbrush icon appears to
the left of the thumbnail to indicate that you are
editing the layer.