3D Compositing with Action > Action: Masks > Creating a Mask >
Closing the Mask

A mask can be closed gesturally or in the Mask tab.

1. Create the mask.
2. Do one of the following:
   - Create a spline to connect the last point in the mask to the first point.

     The mask is completed once it is a closed shape. The Closed button is enabled.

   - In the Mask tab, enable the Closed button.

     A spline connects the last point in the mask to the first point.