Adobe 65008009 - After Effects CS4 Using Manual page 246

Last updated 12/21/2009
Shorter temporal distance between keyframes increases layer speed.
• Apply the Easy Ease keyframe assistant, which automatically adjusts the speed of change as motion advances
toward and retreats from a keyframe.
About the speed graph
You can fine-tune changes over time using the speed graph in the Graph Editor. The speed graph provides information
about and control of the value and rate of change for all spatial and temporal values at any frame in a composition.
In the speed graph, changes in the graph height indicate changes in speed. Level values indicate constant speed; higher
values indicate increased speed.
To view the speed graph, choose Edit Speed Graph from the Choose Graph Type menu
A
Speed graph controls
A. Value at the current-time indicator B. Speed graph C. Direction handle (controls speed)
By adjusting the rise and fall of the speed graph, you can control how quickly or slowly a value changes from keyframe
to keyframe. You can control the values approaching and leaving a keyframe together, or you can control each value
separately. The incoming handle increases the speed or velocity when you drag it up, and decreases the speed or
velocity when you drag it down. The outgoing handle influences the next keyframe in the same way. You can also
control the influence on speed by dragging the handles left or right.
B C
USING AFTER EFFECTS CS4
Animation and keyframes
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