Apple Final Cut Pro 6 - Manual (Page 1072)

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Adjusting Parameters
for Keyframed Effects
Automated audio level adjustments, opacity changes
between layers, shifting color values, and spinning video
clips are examples of what’s possible when using keyframes
to adjust clip parameters over time.
This chapter covers the following:
 Animating Motion Effects Using Keyframes (p. 287)
 Smoothing Keyframes with Bezier Handles (p. 307)
 Creating Keyframed Motion Paths in the Canvas (p. 311)
 Using the Timeline Keyframe Graph Area (p. 322)
Animating Motion Effects Using Keyframes
The word keyframe comes from the traditional workflow in the animation industry,
where only important (key) frames of an animated sequence were drawn to sketch a
character’s motion over time. Once the keyframes were determined, an in-between
artist drew all the frames between the keyframes. With Final Cut Pro, you can set
parameters to specific values at specific times and Final Cut Pro acts as an automatic,
real-time in-between artist, calculating all the values between your keyframes.
Effects, such as opacity, position, and any other of a clip’s Motion tab settings, can be
dynamically changed over the course of your sequence using keyframes. Keyframes are
available throughout Final Cut Pro for any feature with parameters that can be changed
over time, and keyframes can be used to create sophisticated motion, filter, and
transparency effects.