Apple Shake 4 - Manual (Page 592)

592 Chapter 21 Paint
opacity
A fade value applied to the R, G, B, and A channels.
constPressure
When this parameter is turned on, the digital graphics tablet’s stylus pressure is
ignored.
keyFrames
This parameter has no purpose except as a placeholder to contain keyframe markers in
the Time Bar. It is not modifiable by the user.
Edit Controls
The parameters in this tab let you modify the qualities of existing brushstrokes. Clicking
the Edit Controls tab puts the Viewer into Edit mode, which lets you pick a brushstroke
with the strokeIndex slider, then modify its properties using the parameters below.
strokeIndex
A slider that lets you pick an individual brushstroke to modify. Each brushstroke is
numbered in the order in which it was created. As you change the strokeIndex number,
the corresponding brushstroke appears with a superimposed path to indicate that it is
selected.
Tool
This parameter lets you change the effect that a brushstroke has on the image after the
fact. For example, you can change a paint stroke into a smudge, eraser, reveal, or clone
stroke at any time.
Convert Stroke
Determines what happens to a stroke after the frame in which it’s drawn. Strokes can
be set to last for only a single frame, or to persist for the duration of the QuickPaint
node, or to change their shape, interpolating from one frame to the next.