Exponential
The Exponential parameter behavior creates more natural animations when scaling
objects, especially when using high values. For example, when an object scales from very
small to very large, the animation appears to slow down as the object reaches its upper
scale values. The Exponential parameter behavior works like the Ramp behavior, but
applies a mathematical function to create an exponential curve (rather than linear)
between the two values. This allows the animation to progress slowly when the scale
values are small and speed up when the scale values are large.
Tip: When applied to parameters other than Scale, the Exponential parameter behavior
creates more organic animations than other interpolation modes.
You can also change the interpolation modes of keyframes to Exponential. For more
information, see
Modifying Curves
.
Parameters in the Inspector
Start Value:
The value that’s added to the parameter at the first frame of the Exponential
behavior.
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End Value:
The value the Exponential behavior reaches at the last frame of the behavior.
Over the life of the behavior, the parameter the Exponential behavior is applied to makes
a transition from the Start Value to the End Value plus the original value.
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.
End Offset:
A slider that lets you offset the end of the behavior’s effect relative to the
last frame of its position in the Timeline, in frames. Adjust this parameter to make the
behavior stop before the actual end of the behavior in the Timeline. Using this slider to
stop the effect, instead of trimming the end of the behavior in the Timeline, freezes the
end of the effect for the remaining duration of the object. Trimming the end of the
behavior resets the object to its original parameter.
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 set the start and end values and change the parameter assignment.
Related Behaviors
•
Logarithmic
•
Ramp
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