• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

Chapter 10. Making Selections and Creati... > Layer Masks, Vector Masks, and Clipp...

Layer Masks, Vector Masks, and Clipping Groups

Alpha channels are used to store masks (and, in some cases, to store transparency information), but masks can also be used to show and hide certain areas of a layer. Layer masks are pixel-based masks, much like alpha channels. They support variable transparency and can be edited with painting tools. Vector masks, on the other hand, use paths to define the visible areas of a layer. They use paths and support only hard-edged transparency. (The term “hard-edged” is used in contrast to variable transparency—a pixel is either completely opaque or completely transparent with vector path transparency.)

Creating a Layer Mask

You can hide areas of a layer easily with a layer mask. At its simplest, you need only make a selection and click the Add Layer Mask button at the bottom of the Layers palette (see Figure 10.28).


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint