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• Triangle: Similar to the sine wave, a triangle wave creates a smooth animation between
values but with sharper changes at the transitions. For example, when Oscillate is
applied to an object’s Opacity parameter, and the Wave Shape is set to Triangle, the
object fades in and out more acutely than the sine wave.
Phase: A slider that lets you adjust the point of the specified oscillation where the behavior
starts. This parameter allows you to put multiple objects with identical Oscillate behaviors
out of phase with one another so they don’t all look the same.
Amplitude: A slider that lets you adjust the maximum values that the parameter oscillates
between. The parameter swings between the amplitude value and the negative of the
amplitude value. Higher values result in more extreme swings from the beginning to the
ending of each oscillation.
Speed: A slider that lets you adjust the speed at which the oscillation occurs, in oscillations
per minute. Higher values result in faster oscillations.
Half Range: When this checkbox is selected, the sine wave (or other wave shape) is
essentially cut in half and does not cross the value of 0. For example, when Amplitude is
set to 100, the parameter oscillates between 100 and –100. When Half Range is selected,
however, the parameter oscillates between 100 and 0. When Amplitude is set to –100,
the parameter oscillates between –100 and 0.
Tip: When you are oscillating position parameters, set Wave Shape to Sine and enable
Half Range to create a bouncing effect.
Start Offset: A slider that lets you delay the beginning of the behavior’s effect relative
to the first frame of its position in the Timeline. Adjust this parameter to make the behavior
start later. The units of this parameter are in frames.
437Chapter 9 Using Behaviors