Page 63 - Adobe Photoshop 2021
P. 63

Edit Layer Mask Properties
            The most important thing to understand in this series of exercises is that layer masks
            are non-destructive. You can change the mask to change the visible area of the layer,
            temporarily hide the mask to show the entire layer, or even delete the mask entirely if
            you decide you don’t want or need it. You can also edit a number of mask properties
            to further refine the mask and its effect on the masked layer contents.

              1.  With cd-artwork.psd open, open the Channels panel (Window>Channels).
              2.  In the Channels panel,
                 click the empty space on
                 the left side of the panel
                 to make the Sunrise Mask
                 channel visible.
                 Layer masks are not visible
                 by default; you have to turn
                 them on in the Channels                                                       Making the mask
                 panel to see them. Although                                                   channel visible allows
                 you can edit a mask without                                                   you to see the red
                 seeing it, it is easier (at least                                             overlay in the image.
                 when you’re first learning)
                 to be able to see what you’re
                 doing.

              3.  Double-click the Sunrise Mask channel icon in the Channels panel.

              4.  Change the Opacity field to 100%, then click OK.

                 Remember, this change only affects the
                 transparency of the mask, not the degree of
                 transparency applied to the layer. By setting
                 the mask opacity to 100%, you will be better
                 able to see the results of your choices in the
                 following steps.
                 Anything solid red will be hidden and anything
                 with no red will be visible; shades of red will be
                 partially transparent.


              5.  If necessary, click the click the empty space
                 on the left side of the Channels panel to
                 make the Sunrise Mask channel visible.
                 There is a minor bug in the software that might cause the mask channel to be hidden
                 when you change the mask opacity.


              6.  In the Layers panel, click the Sunrise layer mask thumbnail to select it.

                                                                   Clicking the layer mask
                   These corner icons                              thumbnail selects the
                     indicate that the                             mask so you can edit it.
                  base layer is selected.



                                                                              Project 1: Music CD Artwork  75
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