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Offset: A slider that offsets the steps. For example, when Quantize is applied to a Position
parameter and Step Size is set to 100, an object “steps” in increments restricted to 100
pixels; thus, the step offset is 100, 200, 300, and so on. If Offset is set to 50, the step offset
is restricted to 50, 150, 250, and so on.
Apply To: The Apply To pop-up menu shows the parameter affected, and can be used
to reassign the behavior to another parameter.
HUD Controls
The HUD lets you define the step size, offset, and parameter assignment.
Ramp
The Ramp behavior lets you create a gradual transition in any parameter that can be
animated, from the Start Value to the End Value. The speed of the transition is defined
by the length of the Ramp behavior in the Timeline, and by the behavior’s end value.
Additional parameters allow you to define how the transition occurs, whether it’s at a
single continuous speed, or whether it accelerates over time.
Ramp is a versatile behavior. If you apply it to the Scale property, it works like the
Grow/Shrink behavior. If you apply it to the Opacity property, you can fade an object in
or out in different ways. Although you can use the Ramp behavior to mimic other Motion
behaviors, it can be applied to any parameter.
Note: This behavior is additive, meaning that the value it generates is added to the original
value of the parameter to which it’s applied.
For example, to animate different segments of a bar graph so each segment grows to a
specific length, apply the Ramp behavior to the each bar’s Crop parameter.
After you arrange the different bars with their starting Crop values, the Ramp behaviors
move the Top Crop parameter up, giving the illusion that each bar is growing. Set the
End Value parameter of each Ramp behavior to the length you want each bar to reach,
and you’re done!
Before
After using Ramp to animate
Top Crop parameters
440 Chapter 9 Using Behaviors