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Lesson 20. Synchronizing with Digital Vi... > Synchronizing the Animation Using th...

Synchronizing the Animation Using the Tempo Channel

The easiest way to learn how cue points work is by using Director's tempo channel to control the text animation.

1.
In the tempo channel, double-click frame 10 to display the Tempo dialog box.

The text animation begins in frame 11. Therefore, you need a way to make the playback head loop in frame 10 until the digital video reaches the first cue point, StoreOn. When the video reaches the StoreOn cue point, you want to let the playback head continue, starting the text animation in frame 11.


Figure .


2.
Select Wait for Cue Point.

The Wait for Cue Point option tells Director to keep looping the playback head in the current frame until a cue point that you specify has passed. The Channel list contains the name of every sprite that is capable of using cue points. In this case, only the digital video sprite has cue points, so this is the only item you will see in the Channel list.

3.
Click the Cue Point menu to see the choices.

This menu contains the StoreOn and StoreOff cue points that are already in the video. Director also includes two built-in cue points: Next (which tells the playback head to loop in the current frame until the next cue point passes) and End (which tells the playback head to loop in the current frame until the media finishes playing).


Figure .


4.
The numbers in front of the cue point names identify each cue point's position within the digital video's timeline. In this case, the StoreOn cue point is first, and the StoreOff cue point is second. Make a note of these numbers, because you will use them in a later task.

Choose StoreOn from the Cue Point menu. Then click OK.

This tells Director to loop the playback head at the current frame until the StoreOn cue point is reached. Once the StoreOn cue point passes, the playback head will start to move again.

5.
Rewind and play the movie.

Watch the playback head in the score. The playback head moves quickly until it reaches frame 10, where it loops to continue playing the movie. When the StoreOn cue point passes, the playback head moves forward, playing frames 11 through 31. You see the headline glide onto the screen.


Figure .


Now that you see how cue points work, you're ready to use Lingo to track them.


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