Apple Shake 4 - Manual (Page 845)

Chapter 27 Warping and Morphing Images 845
rotoTransformIncrement
This parameter allows you to adjust the sensitivity of shape transform controls. When
this parameter is set to lower values, transform handles move more slowly when
dragged, allowing more detailed control. At higher values, transform handles move
more quickly when dragged. A slider lets you choose from a range of 1-6. The default
value is 5, which matches the transform control sensitivity of previous versions of Shake.
rotoPickRadius
This parameter lets you select individual points on a shape that fall within a user-
definable region around the pointer. This allows you to easily select points that are near
the pointer that may be hard to select by clicking directly. A slider allows you to define
how far the pointer may be from a point to select it, in pixels.
rotoTangentCreationRadius
This parameter lets you define the distance you must drag the pointer when drawing a
shape point to turn it into a Bezier curve. Using this control, you can make it easier to
create curves when drawing shapes of different sizes. For example, you could increase
the distance you must drag to avoid accidentally creating Bezier curves, or you can
decrease the distance you must drag to make it easier to create Bezier curves when
drawing short shape segments.
Using the Warper Node
The Warper node is useful for creating targeted deformations to alter the shape of a
subject in an image. Examples might include making someone’s nose grow, making an
animal’s eyes widen in surprise, or causing a bump to grow on someone’s forehead. The
Warper can be used to make a static change to a subject, or it can be animated to
cause dynamic changes in the subject’s shape.