Create a rectangular or elliptical mask numerically
Select a layer in the Composition panel,
or display a layer in the Layer panel.
Choose Layer > Mask > New Mask.
A new mask appears in the Composition or Layer panel with its handles
at the outer edges of the frame.
Choose Layer > Mask > Mask Shape.
Select Rectangle or Ellipse, and specify the size and
location of the mask’s bounding box.
Comments
Comments are no longer accepted for After Effects CS3. After Effects CS4 is the current version. To
discuss After Effects CS3, please use the Adobe forum.
Comments
Comments are no longer accepted for After Effects CS3. After Effects CS4 is the current version. To discuss After Effects CS3, please use the Adobe forum.