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Lesson 2. Ballet Special Bumper > Animating the opacity

Animating the opacity

In this section, you will animate the opacity to fade the text in and out with a rippling effect. You set a few keyframes, and then copy and paste the keyframes into different layers, at different times.

  1. Move the current-time marker to 6:15.

  2. Make sure all the letter layers are selected.


    Figure .


    First, you'll set opacity keyframes at 6:15 and 6:20 in all letter layers, setting identical values for all the keyframes. This produces an unchanging opacity value between these two locations.

  3. To set an Opacity keyframe for all the selected layers at 06:15, press Alt+Shift+T (Windows) or Option+Shift+T (Mac OS). This will create a new keyframe for all selected layers. Press the T key to display the Opacity property, click any underlined Opacity value, and then enter 0 to set all selected layers to 0% Opacity.

  4. Move the current-time marker to 06:20, and then press Alt+Shift+T or Option+T again to set another Opacity keyframe with a value of 0%.

    Next, you'll set a single opacity keyframe at 100% to fade in a layer, then copy and paste it at different locations in the other layers.

  5. Set the current time to 06:25, press Ctrl+Shift+A (Windows) or Command+Shift+A (Mac OS) to deselect all the layers. Then select the B layer, and set its Opacity to 100%.

  6. Make sure the keyframe is selected, and choose Edit > Copy.

  7. Move the current-time marker to 07:00, select the A layer, and paste. An Opacity keyframe with a value of 100% is pasted at 07:00.

  8. Paste Opacity keyframes for each letter layer as follows: 7:05 (first l), 7:10 (second l), 7:15 (e), and 7:20 (t).


    Figure .


    To give the letters a little more room to dance off the screen, you will scale them down slightly.

  9. Set the current time to 02:00, select all the letter layers, press the S key to display the Scale property, and then press Alt+Shift+S (Windows) or Option+S (Mac OS) to set a Scale keyframe. Leave the value set to 100%.

    You won't see the letters in the Composition window because the Opacity value is 0% at this point.

  10. Set the current time to 07:20, make sure all the letter layers are selected in the Time Layout window, click the underlined Scale value for any layer, enter 90 for the Scale value, and then click OK. The Scale values for all the layers change to 90%.

  11. Set the current time to 08:15, and then click the underlined Scale value, and set the Scale to 50% for all the letter layers.

  12. Collapse all layers and save the project.

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