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Lock or unlock masks, Copy, cut, save, reuse, and delete masks – Adobe After Effects CS3 User Manual

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AFTER EFFECTS CS3

User Guide

259

Lock or unlock masks

Locking a mask prevents you from selecting it in the Timeline, Composition, and Layer panels or setting it as a target
in the Layer panel. Use this feature to avoid unwanted changes to the mask.

1

In the Timeline panel, expand the Masks property group.

2

In the A/V Features column, click the box underneath the Lock icon

next to the mask you want to lock or

unlock. A mask is locked and cannot be selected when its Lock switch is selected—i.e., when the Lock icon appears
in the box.

Note: To unlock multiple masks at one time, select one or more layers and choose Layer > Mask > Unlock All Masks.

Copy, cut, save, reuse, and delete masks

You can reuse masks in other layers and compositions—particularly Bezier masks you’ve spent a long time
perfecting. Mask paths are stored inside a composition in a project file. It can be useful to create a project with
compositions just for storing complex layer masks. When you want to use a mask from another project, import that
project into your current project.

Copy, cut, duplicate, or paste a mask

To copy or cut selected masks to the clipboard, choose Edit > Copy or Edit > Cut.

To duplicate selected masks, choose Edit > Duplicate.

To paste a mask onto a layer, select the layer and then choose Edit > Paste. If a mask is selected, this replaces the
selected mask.

Save a mask

1

In the Timeline panel for the composition containing the layer and mask you want to save, expand the layer and

its mask properties.

2

Do one of the following:

To save an animated mask, select the mask keyframes you want to save.

To save a nonanimated mask, select the mask.

3

Copy the mask or keyframes, and paste the mask or keyframes to a new layer. The new layer can be a simple solid.

Reuse a mask

1

Open the composition containing the mask you want to reuse. If you saved the mask in another project, import

the project and then open the mask’s composition.

2

In the Timeline panel, expand the saved mask’s layer and mask properties.

3

Select the mask or keyframes.

4

Copy the mask or keyframes, and paste the mask or keyframes to the layer to which you want to apply the mask.

Delete masks

To delete one mask, select the mask in the Timeline panel and press Delete.

To delete all masks, select the layer containing the masks you want to remove and choose Layer > Masks > Remove
All Masks.