Adobe Flash Professional CS6 Adobe Flash Professional CS6 Classroom In A Book | Page 211

Adding damping effects
Damping refers to how much the spring effect decreases with time. It wouldn’t
be realistic if the rocking of the buoy or the swaying of the flag and the flag pole
continues indefinitely. Over time, the swaying should lessen and eventually stop.
You can set a damping value from 0 (no damping) to 100 (maximum damping) to
control how rapidly these effects diminish.
1 Select the first bone of the buoy (in the floating part), and in the Properties
inspector, in the Spring section, enter 100 for the Damping.
The maximum damping value will decrease the rocking of the buoy over time.
2 Continue to select each of the bones of the armature and enter the maximum
value (100) for Damping.
3 Choose Control > Test Movie > in Flash Professional to see the effects that the
damping values have on the motion of your floating buoy.
The buoy and the flag and flag pole still sway, but their motion quickly subsides
after the initial starting motion and after the last keyframe. The damping values
help add a sense of weight to the armature. Experiment with both the strength
and damping values in the Spring section of your armature to get the most
realistic motion.
review Questions
1 What are the two ways of using the Bone tool?
2 What is the Bind tool used for?
3 Define and differentiate these terms: a bone, a node, a joint, and an armature.
4 What is a shape tween, and how do you apply it?
5 What are shape hints, and how do you use them?
6 What does strength and damping refer to in the Spring feature?
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Lesson 5
Articulated Motion and Morphing