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Chapter 9. Mask Essentials > Selecting Masks and Points

Selecting Masks and Points

To alter all or part of a mask, you must first select its control points—usually accomplished via (what else?) the Selection tool. (Sorry, Illustrator users won't find a Direct Selection tool.) In After Effects, you must select all of a mask's points to move or scale the entire mask path. Select one or more control points to change the shape of a mask. As usual, selected control points appear as solid dots; deselected control points appear as hollow dots.

To select masks or points in a Layer or Comp window:

1.
In Tools, choose the Selection tool (if you haven't done so already) (Figure 9.40).

Figure 9.40. In Tools, choose the Selection tool.


2.
Make sure the Layer or Comp Window is set to show masks.

See the sections on viewing masks earlier in this chapter.

3.
To select mask points in the Comp window, select the layer containing the mask.

4.
To select mask points in either the Layer window or Comp window, do any of the following:

  • To select a control point, click the control point on a mask.

  • To add or subtract from your selection, press Shift as you click or drag a marquee around control points.

  • To select points at both ends of a segment, click the segment.

  • To select an entire mask with the mouse, Option-click (Mac) or Alt-click (Windows) a mask.

5.
To select mask points in the Layer window only, do any of the following:

  • To select any or all control points, drag a marquee around the points you want to select (Figure 9.41).

    Figure 9.41. To select several control points simultaneously, you can drag a marquee around them.


  • To select all mask points, press Command-A (Mac) or Ctrl-A (Windows).

  • To select an entire mask by name, choose the mask from the Target pull-down menu in the Layer window.


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