Apple Motion 4 - Manual (Page 1112)

• Start Cap: Pop-up menu that lets you choose the shape of an open outline’s start cap
(the shape of the edge of an outline). This option is only available when Solid is the
selected Brush Type.
There are five options:
• None: The stroke ends at the control point.
• Square: The cap is squared off.
• Round: The cap is rounded.
• Bevel: The cap is cut at an angle.
• Arrow: The cap is a customizable arrow. When Arrow is selected from the Start Cap
or End Cap pop-up menus, the Arrow Length and Arrow Width sliders appear.
• End Cap: Pop-up menus that let you choose the shape of an outline’s end cap. This
option is only available when Solid is the selected Brush Type.
There are five options:
• None: The stroke ends at the control point.
• Square: The cap is squared off.
• Round: The cap is rounded.
• Bevel: The cap is cut at an angle.
• Arrow: The cap is a customizable arrow. When Arrow is selected from the Start Cap
or End Cap pop-up menus, the Arrow Length and Arrow Width sliders appear.
• Spacing: Available for the Airbrush and Image brush types, this parameter defines the
space in between dabs. A lower number creates a more solid line, and a higher number
creates a greater distance in between dabs.
• Additive Blend: By default, dabs are composited together using the Normal blend mode.
Select this checkbox to composite all overlapping dabs together using the Additive
blend mode. This blend mode occurs in addition to whichever compositing method
is already being used on the paint stroke. This checkbox is only available when Brush
Type is set to Airbrush or Image.
• Reverse Stacking: Available when Brush Type is set to Airbrush or Image, this parameter
inverts the order in which the dabs are stacked. To see the effect of this parameter,
dabs must be overlapping.
• First Point Offset: This parameter allows you to offset and animate the start point of the
outline. This is very useful for effects such as drawing a line across a map over time.
You can also use the Shape Write On behaviors to draw a stroke or outline over time.
For more information, see
Write On .
• Last Point Offset: This parameter allows you to offset and animate the end point of the
outline.
1112 Chapter 17 Using Shapes, Masks, and Paint Strokes