Page 509 - ProShow Producer Manual
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Now you’re going to use subtraction to remove 5 from the Random range.
Remember that negative rotation will rotate the image to the left. These
two actions combined together will cause it to rotate both directions. The
addition action will go right and the subtraction action will go left.
13. Set the Type of Action to Subtract from Modifier.
14. Select Constant Amount and set the value to 5.
15. Play the slide back and you should see it shake to both the left and
right.
16. Click on Ok now that the modifier is set.
The shaking is finished. Remember that you set up the entire motion
without using a single keyframe. This is far easier than creating 20 or more
keyframes for each little twitch you want the layer to make. With the
motion in place, we can set up the blur that will trigger when the layer is in
motion.
17. In the Adjustment pane under the Effects tab, add a modifier to
the Blur value.
18. In the Modifier Target pane, set the Apply To drop box to
Keyframe 2.
