2011

Table Of Contents
To:Use:
Set how mask points will be keyframed. Choose from Selection,
Point, or Shape. If a mask control point is moved (animated)
Keyframing
the following attributes will be keyframed based on the Key-
framing mode.
Shape (default) X, Y positions, Tangent Angles In and
Out, and Tangent Lengths In and Out for all points of the
shape.
Point X, Y position and its Tangent Angle In and Out,
and Tangent Length In and Out
Selection X and Y position.
Set how the tool behaves once a shape is closed. When a
shape is closed and Create has been selected from the list, the
Default Tool
tool will revert back to the Creation tool (Freeform, Rectangle,
or Ellipse) that created the shape. If Edit is selected, the tool
will revert to edit mode. If Current is selected, the tool will
revert back to the current setting.
Store initial mask parameters that can be reused during the
rotoscoping processsee User Settings on page 555.
Options tab User Set-
tings
Pixel Masking
Pixel Masking lets you limit the effect of an image modifier to a subset of the
input pixels (those covered by the mask). All tools that support masking have
a Mask image input.
The actual masking is implemented by blending the original input with the
tool output using the pixel values in the mask as the control weights in the
blend.
560 | Chapter 23 Masking