2017

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Create right-angled vertices of selected vertices.G
Animating Garbage Masks
You can animate a garbage mask using the Shape channel in the Channel Editor or using spline keyframing,
which animates individual Vertex channels. Vertex channels correspond to the vertices—or handles—that
appear along the perimeter of the garbage mask. The Vertex channel names are contained in the Spline
folder in the Channel Editor.
You can apply tracking data to a mask's axis to animate a garbage mask. Existing keyframes are disregarded,
after applying tracking data, you can animate individual vertices and make adjustments.
Animating Masks Using the Shape Channel
The Shape channel shows when the shape of the garbage mask changes during the animation.
To animate a garbage mask using the Shape channel:
1 In the Garbage Mask menu, click Mask Setup.
2 In the Garbage Mask Setup menu, turn on Spline Keyframing.
Each time you move a vertex, a shape key is added at the current frame.
NOTE Disable Spline Keyframing if you do not want a keyframe added to the Shape channel.
3 Click Mask Setup again.
The Garbage Mask menu appears.
(a) Shape Animation button (b) Linear Interpolation button
4 Enable Shape Animation.
If keyframes are already set for specific vertex channels, the following message appears: “Convert
explicit channels to a single shape channel?”
5 Click Confirm.
The Shape channel appears in the Channel Editor and any Vertex channel keyframes are converted.
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