Lesson 3

Question 1

Name three of the Basic Motion behaviors.

Answer 1

Grow/ Shrink, Fade In/Fade Out, Throw, Spin, Motion Path, and Snap Alignment to Motion are all Basic Motion behaviors.

Question 2

You applied a Motion Path behavior and added control points to create a curved path. How can you make the layer turn as it moves along the path?

Answer 2

Add the “Snap Alignment to Motion” behavior from the Basic Motion category.

Question 3

If you copy a behavior from one layer to another, will it always match the duration of the target layer?

Answer 3

No, the copied behavior will match the In point of the target layer but its duration won’t change from the original. So, if the target layer is longer or shorter than the source layer, the Out point of the behavior must be trimmed to match it.

Question 4

How do you trim the Out point of a behavior to match the layer to which it’s applied?

Answer 4

Select a layer in the Timeline and press Shift-O to move the playhead to the layer’s Out point. Then press O to trim the Out point of the behavior to the playhead. Or drag the right edge of the behavior, holding down the Shift key to snap to other layers.

Question 5

What type of behaviors mimic physical phenomena such as gravity, inertia, and random movement?

Answer 5

Simulation behaviors

Question 6

You added a Grow/Shrink behavior to a layer and would like to adjust it using the onscreen controls. What happens if you drag one of the blue edge handles?

Answer 6

Dragging an edge handle will scale the layer up or down

non-proportionally over time.

Question 7

Why would you change a group from a 2D group to a 3D group?

Answer 7

You want to composite the layers in the group based on their positions in z-space rather than the stacking order in the Layers list. Also, certain behaviors will work in 3D only if the group containing them is a 3D group. Finally, the lights do not affect 2D groups.

Question 8

Describe two ways to apply a Parameter behavior.

Answer 8

Drag a Parameter behavior from the Library to a layer, and then select the target parameter in the HUD or Behaviors Inspector. Alternatively, first choose the target parameter you want to animate and then in the Inspector, click the Animation menu for that parameter and choose Add Parameter Behavior.

Question 9

What’s one difference between duplicating a layer and

cloning a layer?

Answer 9

A duplicated layer is independent of the original; a clone will change when you change certain aspects of the original—for example, changing the animation of the original.

Question 10

1. D
2. Shift-D
3. Shift-V

Answer 10

• Cycle HUD forward
• Cycle HUD backward
• Turn the full view area on and off

Question 11

1. Command-Option-i
2. Command-Option-O
3. Command-Arrow
4. Shift-Command- Arrow

Answer 11

• Set a play range In point-
• Set a play range Out point
• Nudge the selected layer in the direction of the arrow
• Nudge in a larger increment in the direction of the arrow