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Review answers




Review Questions

Previewing the entire composition

Zooming in for a final close-up

Everything is looking good, but zooming in for a final close-up of the slide show will really focus the viewer’s attention on the artwork.

1 In the Project panel, drag the CarRide composition onto the Create A New Composition button () at the bottom of the panel. After Effects creates a new composition, named CarRide 2, and opens it in the Timeline and Compositionpanels. You’ll rename the composition to avoid confusion.

2 Select the CarRide 2 composition in the Project panel, press Enter or Return, and type Lesson05. Then press Enter or Return again to accept the new name.

3 In the Lesson05 Timeline panel, go to 10:24, the first frame where the car clears the right side of the composition.

4 Select the CarRide layer in the Lesson05 Timeline panel, and press S to reveal its Scale property.

5 Click the stopwatch icon () to set a Scale keyframe at the default values, 100, 100%.

6 Go to 11:00, and change the Scale values to 110, 110%. After Effects adds a keyframe, and for the rest of the composition, the slide show will be prominent and eye-catching.

7 Select the CarRide layer, and press S to hide its Scale property.

It’s time to see how the whole thing comes together.

1 In the Preview panel, deselect From Current Time, and then click the RAM Preview button () to watch a RAM preview of the entire composition.

2 Press the spacebar to stop playback when you’re done.

3 Choose File > Save.

Congratulations. You’ve just created a complex animation, practicing all kinds of After Effects techniques and capabilities along the way, from parenting to audio looping. Although you’re not going to render it for final output right now, this project is used for Lesson 14, “Rendering and Outputting.” You can skip to that lesson now if you’d like to learn how to output this project for a few different media, or you can proceed sequentially through the book and render it later.

 

1 How does After Effects display an animation of the Position property?

2 What is a solid-color layer, and what can you do with it?

3 What types of audio can you import into an After Effects project?

1 When you animate the Position property, After Effects displays the movement as a motion path. You can create a motion path for the position of the layer or for the anchor point of a layer. A position motion path appears in the Composition panel; an anchor-point motion path appears in the Layer panel. The motion path appears as a sequence of dots, where each dot marks the position of the layer at each frame. A box in the path marks the position of a keyframe.

2 You can create solid images of any color or size (up to 30,000 x 30,000 pixels) in After Effects. After Effects treats solids as it does any other footage item: You can modify the mask, transform properties, and apply effects to the solid layer. If you change settings for a solid that is used by more than one layer, you can apply the changes to all layers that use the solid or to only the single occurrence of the solid. Use solid layers to color a background or create simple graphic images.

3 You can import any of the following types of audio files into After Effects: Adobe Sound Document (ASND; multitrack files import as merged single track), Advanced Audio Coding (AAC, M4A), Audio Interchange File Format (AIF, AIFF), MP3 (MP3, MPEG, MPG, MPA, MPE), Video for Windows (AVI, WAV; requires QuickTime on Mac OS), and Waveform (WAV).

 

 





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