Apple Motion 5.1.1 - Manual (Page 342)

Chapter 9 Behaviors 342
Oscillate
The Oscillate behavior animates a parameter by cycling it between two values. You can
customize how wide apart the high and low values are as well as the number of oscillations per
minute. The Oscillate behavior can create all kinds of cyclical effects. For example, if you apply the
Oscillate behavior to the rotation property of an object, it will rock back and forth. This happens
because the rotation property cycles back and forth between the original rotation value plus and
minus the Amplitude value that’s set in the Oscillate behavior.
Applying the Oscillate behavior to the X value of the Scale parameter instead causes the width of
the object to cycle, and it repeatedly stretches and compresses for the duration of the behavior.
The Oscillate behavior is additive, meaning that the value generated by this behavior is added to
the original value of the parameter to which it’s applied.
Parameters in the Inspector
•
Wave Shape: A pop-up menu that sets the shape of the oscillation’s wave. There are four shapes:
•
Sine: The default wave shape, creates a smooth animation between values. For example, if
Oscillate is applied to an object’s Opacity parameter, and the Wave Shape is set to Sine, the
object gracefully fades in and out.
•
Square: Creates abrupt changes in values. For example, when Oscillate is applied to an
object’s Opacity parameter, and the Wave Shape is set to Square, the object flashes on and
off (like turning a light switch on and off).
•
Sawtooth: Ramps upward over time and then drops sharply. For example, when Oscillate is
applied to an object’s Opacity parameter, and the Wave Shape is set to Sawtooth, the object
fades in slowly and fades out abruptly (like using a light dimmer to fade up a light, and then
flicking the power switch off).
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