Page 46 - CC2017_WD_Look_Inside

11. Click OK to accept your refined selection.
A layer mask is a map of areas that will be visible in the masked layer. The mask you
just created is a raster-based pixel mask, based on the active selection when you created
the mask. This is a non-destructive way to hide certain elements of a layer without
permanently deleting pixels; you can edit or disable the layer mask at any time.

The resulting layer
mask hides areas that
were not selected.

The layer mask thumbnail
shows the masked
(hidden) areas in black.

As long as 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.

12. Click the mask thumbnail in the Layers panel to select only the mask, and
then open the Properties panel (Window>Properties).
Like the Options bar, the Properties panel is contextual. Different options are available
in the panel depending on what is selected in the Layers panel. When a layer mask is
selected, you can manipulate a variety of properties related to the selected mask.

13. In the Properties panel, click the Invert button.
This button reverses the mask, so now only the background pixels are visible.

The layer mask
must be selected in
the Layers panel.

The Properties panel
can be used to edit
the selected mask.

Clicking the Invert
button reverses the
selected layer mask.

14. Click the Invert button again to restore the parchment area of the layer.
Remember, layer masks are non-destructive. You can edit the mask to show or hide
different areas of a layer; the actual layer pixels are not affected.

56 Project 1: Composite Movie Ad