Apple Final Cut Express HD - Manual (Page 689)

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Changing Motion Parameters
Every video and graphics clip in a project has a set of
parameters that can be edited in the Motion tab of the
Viewer. These parameters include scale, rotation, center point,
cropping, and corner pin distortion.
This chapter covers the following:
 Creating Motion Effects in the Viewer (p. 689)
 Creating Motion Effects in the Canvas (p. 707)
Creating Motion Effects in the Viewer
Every video, graphics, and generator clip in Final Cut Express HD has a set of
corresponding motion attributes, each of which contains one or more adjustable
parameters. When you change these parameters, you create a motion effect. By
adjusting a clip’s motion settings, you can change its geometry to move, shrink,
enlarge, rotate, and distort the clip in nearly any way you like, relative to your overall
project. You can also adjust motion settings graphically, by manipulating them directly
in the Canvas.
Using keyframes, you can dynamically adjust motion effects over time. You can keyframe
each clip’s motion parameters to animate clips in your sequence, making them move
across the screen, rotate, and grow or shrink over time. You can also change a clip’s
opacity to make it fade in and out and dynamically adjust any applied filter effects—for
example, to make a clip go from a blur to sharp focus as a sequence plays. For details on
keyframing, see “
Animating Motion Effects Using Keyframes ” on page 719.