Apple Motion 5.1.1 - Manual (Page 883)

Chapter 20 Shapes, masks, and paint strokes 883
6 To modify the speed at which the stroke is painted, adjust the duration of the behavior in the
Timeline or mini-Timeline.
You can also modify additional parameters, such as customizing the speed at which the stroke is
drawn, drawing on only a percentage of the stroke, offsetting the stroke, or drawing the stroke in
reverse. These parameters are available in the Write On behavior, described above.
Create a write on stroke using an existing shape
You can apply the Write On behavior to an existing shape to draw its outline over time. Because
the Write On behavior only affects outlines, Outline must be enabled in the Shape parameters.
Note: When a Write On behavior is added to an existing shape, the behavior spans the duration
of the shape to which it is applied.
1 Select the shape you want to use and select its Outline checkbox in the HUD or Shape Inspector.
Note: You can leave the Fill checkbox selected, but only the outline is affected by the Write
On behavior.
2 In the toolbar, choose Shape > Write On from the Add Behavior pop-up menu.
The Write On behavior appears in the Layers list. If the playhead is located at the start of the
shape, the visual shape disappears and only the path is visible.
3 Play the project (press the Space bar).
The outline is drawn over the length of the behavior.
4 To adjust the speed at which the stroke is painted, adjust the duration of the behavior in the
Timeline or mini-Timeline.
5 To adjust the properties of the stroke, use the Shape Inspector.
For more information, see Stroke pane on page 860.
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