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Chapter 13. Keyframe Interpolation > Adjusting Temporal Interpolation Numerical...

Adjusting Temporal Interpolation Numerically

If using the speed or velocity graph doesn't provide the precision you need, you can make speed or velocity adjustments numerically.

To change the speed or velocity numerically:

1.
Expand the layer outline to view the speed or velocity graph for an animated layer property.

2.
Select the keyframe you want to adjust (Figure 13.82).

Figure 13.82. Select the keyframe you want to adjust.


3.
Choose Layer > Keyframe Velocity (Figure 13.83).

Figure 13.83. Choose Layer > Keyframe Velocity.


A Keyframe Velocity dialog box appears, displaying the type of property you are adjusting (Figure 13.84).

Figure 13.84. A Keyframe Velocity dialog box appears.


4.
In the Keyframe Velocity dialog box, enter values for the incoming velocity and outgoing velocity.

The unit of measurement used by the velocity value depends on the property.

5.
In the Incoming Velocity section of the dialog box, enter a value for Influence.

This affects the amount of influence the value of the previous keyframe exerts over the interpolated values. In the graph, it affects the length of the ease handle.

6.
In the Outgoing Velocity section of the dialog box, enter a value for Influence.

This affects the amount of influence the value of the next keyframe exerts over the interpolated values.

To automatically maintain equal values for the Incoming and Outgoing Velocities, check Continuous.

7.
Click OK to close the Keyframe Velocity dialog box.


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