Drawing a Mask
 
 
 

After setting the drawing options, you can draw the mask.

To draw a garbage mask:

  1. In the Keyer menu, click GMask.

    The Garbage Mask menu appears.

  2. Select the view where you want to draw the mask from the View box.

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    Which view you use depends on the context of your key and why you are drawing the mask. For example, if you want to crop the edges of a clip by drawing an opaque mask around the subject and then turning on Outside, try drawing the mask using the Matte view. Or, if you are rotoscoping a subject that has not been shot on a blue or green screen, try either the Front or Result view.

    TipIn Batch, you can use multiple viewports as you draw the garbage mask. For example, you can draw the mask in Matte view, while also displaying Result view. Using multiple viewports, you can immediately see how your mask affects the clip. For more information, see Displaying Multiple Views.
  3. Do one of the following:
  4. Do any of the following to draw the garbage mask:

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    (a) Vertex added by first click  (b) Vertex added by third click  

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    (a) Vertices are temporarily hidden while holding Shift  

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    Tangency handles extend as you drag from a vertex

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    Segments of garbage mask drawn freehand

    NoteIf you are drawing the mask with Auto Tangents turned off, freehand segments are drawn with broken tangents. See Breaking Tangents.
  5. To close the mask, do one of the following:
    TipYou can also close the mask by pressing the hot key for the edit mode you want to use next: M for Move, S for Select, or B for Break. The mask closes and you are ready to work in that mode.

    When the garbage mask is closed, its vertices and tangents can be edited and animated.

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    (a) Vertex  (b) Tangent  

    If you want to view the nodes that are added with each new garbage mask, select Schematic from the View box or press the ~ key. You can use the Schematic view to access a menu, create parent-child relationships between masks and axes, delete masks, as well as perform other organizational tasks.

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    (a) View box