Page 60 - CC 2019 WD Look Inside

16. In the Layers panel, click the Add Layer Mask button. Note:
A layer mask is a map of areas that will be visible in the selected layer. The mask you
just created is a raster-based pixel mask, based on the active selection when you created A layer mask is basically
the mask. This is a nondestructive way to hide certain elements of a layer, without an Alpha channel con-
permanently deleting pixels. You can edit or disable the layer mask at any time. nected to a specific layer.

The Layer Mask thumbnail
shows the masked
(hidden) areas in black.

When the mask is linked to
the layer, the mask will move
along with the layer. You can
click this icon to unlink the
layer from its mask.

On the masked layer, pixels outside Add Layer Mask
the original selection are hidden. button

17. Control/right-click the mask thumbnail and choose Disable Layer Mask Note:
from the contextual menu.
In the Layers panel, the
Add Layer Mask option
is not available if the
Background layer is
You have to click the selected. You can’t apply
mask thumbnail to
open the contextual a layer mask to the
menu for the mask. Background layer of a
file, so you first have to
convert the Background
When you disable the mask, the background pixels are again visible. This is one of the layer to a regular layer.
advantages of using masks — the background pixels are not permanently removed,
they are simply hidden.

When the mask is
disabled, the masked
pixels are visible.

A red X indicates that
the mask is disabled.

72 Project 1: Composite Movie Ad