Changing a Movie’s Shape with a Video Mask
With QuickTime Pro, you can change the shape of a movie from rectangular to other
shapes using a video mask. In combination with a media skin; you can “skin” a movie so
that it plays in a non-rectangular region (for example, a movie could play from within a
ship porthole), and then use a mask to restrict the movie’s shape to the desired
Use a graphics program to create the mask and save it as a QuickTime-compatible file
(for example, BMP, GIF, JPEG, or PICT). The mask should be a black shape on a white
background. The movie appears through the black shape.
To add a video mask:
In QuickTime Player, choose Window > Show Movie Properties.
Select the video track you want to assign the mask to, then click Visual Settings.
Drag the mask file to the Mask well in the Properties window, or click Choose to select