Applying motion blur to a mask

Motion blur creates a blur based on a mask's movement in the composition. You can apply motion blur to any one of the individual masks on a layer. (See Applying motion blur to layers.)

Note: The mask must contain Mask Shape keyframes that create enough movement to result in a realistic motion blur.

To apply motion blur to a mask:

1. Select one or more masks.
2. Choose Layer > Masks > Motion Blur and choose one of the following options:
• Same as Layer, to control the mask's blur using the Motion Blur button.
• On, to render the mask blur even if the Motion Blur button is not selected. (The Enable Motion Blur button must be selected for this option to work.)
• Off, to apply no motion blur to the mask.
3. Click the Enable Motion Blur button in the Timeline window to view the blur.

Motion Blur settings for a layer and a composition A. Motion Blur switch B. Enable Motion Blur button