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Lesson 6. Station Identification > Changing the influence

Changing the influence

Not only can you change the acceleration and deceleration by dragging up and down, you can also drag the ease handles left and right to change the influence of a keyframe. The influence determines how quickly the speed at the keyframe is reached.

  1. To create a sharper change at the peak of the graph, select the keyframe at 00:07, and drag the ease handles in, one at a time.

    The graph reflects the sharp change of speed at the bounce of the character.

  2. To create a more gradual change in speed, select the keyframe at 00:15, and then drag the ease handles out, smoothing the curve at the bottom of the graph, as shown below.


    Figure .


    The ease handles represent the incoming and outgoing speeds.

  3. Use ease handles to smooth out the bot-tom curve of the graph and to create a sharp peak at the top.


    Figure .


  4. Continue selecting keyframes and changing the Speed graph to reflect the increase in speed as the character bounces up, and the decrease in speed as the character descends from the peak of the bounce.

    Don't worry about getting the graph exactly the same as the illustration. The important thing is to get a feel for working with the ease handles.

    Make sure to select the keyframe to control the ease handles on both sides.

  5. Preview the motion by pressing 0 on your numeric keypad.


PREVIEW

                                                                          

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