Apple Final Cut Pro 5 - Manual (Page 1037)

250 Part II Project Interchange
Many clip parameters can be keyframed:
 Opacity
 Motion settings
 Generators
 Filters
 Volume level
 Pan settings
Since you can add keyframes to filters and generators, as well as motion settings, the
information presented in this chapter can also be used to modify filters and generators
(discussed in Chapter 11, “
Video Filters ,” on page 185 and Chapter 21, “ Using Built-in
Generated Clips ,” on page 489).
How Keyframing Works
You place keyframes at specific points in a clip or sequence to change parameters at
those points. For example, if you want the last clip in your sequence to fade to black,
you set two Opacity keyframes at two different times: one with the value of 100 (fully
visible) and a second with the value of 0 (fully transparent). Final Cut Pro interpolates
the values between 100 and 0, creating a smooth fade to black.
To add keyframes to a sequence clip, you can use the Canvas or Timeline, or open the clip
in the Viewer. If you’re keyframing motion, you set keyframes in the Motion tab of the
Viewer; if you’re keyframing filter effects, you set keyframes in the Filters tab of the Viewer.
Note: You can also add keyframes to master clips that are opened into the Viewer from
the Browser, but these keyframed effects accompany the clip whenever it’s edited into
a sequence.
When you use two or more keyframes to change an effect over time, Final Cut Pro
automatically interpolates the values between the keyframes so that there’s a smooth
change in that parameter. For example, when you look at a clip with a change in
opacity using two keyframes, you can see the gradual change from one keyframe to
the other in the slope of the Opacity overlay, as shown below in the Timeline.