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This chapter is from the book
Lesson Review
- How does Motion let you know that recording is enabled?
- Which parameters of a layer or group are keyframed when recording is turned on and their values are changed?
- How many keyframes do you need to create animation?
- The position of a video is keyframed at 1:00 and 5:00, but it does not move. Why?
- How do you open the Keyframe Editor?
- How do you change the interpolation for a keyframe curve?
- How can you set the interpolation for a keyframe to Logarithmic?
- You want to set a keyframe at 3:15 for the scale of three layers that are each in different groups. How can you set it for all of them at once?
- When you set a keyframe with recording enabled at a frame that is not at the beginning of a layer, what does Motion do automatically?
- When setting keyframes manually, which do you do first—set the keyframe or change the value—and why?
- What parameters can be keyframed?
Answers
- The Record button turns red, and all keyframeable value fields in the Inspector turn red.
- All keyframeable parameters will be keyframed by default if you change their values with recording enabled. You can change the recording options by double-clicking the Record button and selecting the checkbox to record keyframes on animated parameters only.
- To animate with keyframes, you need to have at least two keyframes with different values.
- Because the keyframes have the same value.
- Choose Window > Keyframe Editor or press Command-8.
- In the Keyframe Editor, from the Animation pop-up menu, choose Interpolation. The submenu includes four interpolation options: Constant, Linear, Bezier, and Continuous. You can also Control-click a keyframe or a curve in the Keyframe Editor.
- In the Keyframe Editor, you can change the interpolation of individual keyframes along a curve by Control-clicking a keyframe and choosing an interpolation type. This technique provides access to five additional interpolation options: Ease In, Ease Out, Ease Both, Exponential, and Bezier.
- Command-click each of the layers to select them. Then click the Animation pop-up menu in the Properties Inspector for Scale and choose Add Keyframe, or click the keyframe icon.
- Motion automatically sets a keyframe at the beginning of a layer if recording is enabled when you change the value of a parameter at any other point in time.
- Always set the keyframe first and then change the value when setting keyframes manually; otherwise, the value will change for the entire duration of the layer, not just at the keyframe.
- Any parameter of any layer, group, or effect that has an Animation pop-up menu in the Inspector.
Keyboard Shortcuts
A |
Toggle recording on and off |
Control-K |
Add a keyframe for the last animated property |
Command-8 |
Open the Keyframe Editor |
Shift-K |
Move to the next keyframe |
Option-K |
Move to the previous keyframe |
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