Working with masks

Each layer in a composition can contain an unlimited number of masks. Create and view masks in either the Composition or Layer window, and set interactions between mask properties in the Timeline window or in the Layer menu. (See Creating masks.) You can also animate the shape of the mask by animating individual vertices on a mask path. (See Setting keyframes.)

To view masks in the Composition window:

Choose View Options from the Composition Window menu, select Masks in the Layer section of the View Options dialog box, and then click OK.

To view masks in the Layer window:

Choose Masks or Anchor Point Path from the View pop-up menu.

To specify a mask in the Layer window as the target for all new mask shapes:

Choose the mask name from the Target pop-up menu. (See Specifying one mask as the target for animation.)


Menu selections to specify a mask in the Layer window A. View pop-up menu B. Target pop-up menu