Apple Final Cut Pro 7 - Manual (Page 771)

Note: Lengthening or shortening the duration of the media asset may result in a possible
loss of temporal quality. You can deselect this checkbox to make sure the media assets
retain their native duration regardless of the length of the transition in the Timeline.
This may cause the media assets to be abridged if the transition in the Timeline is not
long enough.
• Reverse Transition Assets checkbox: Select this checkbox to reverse the transition.
• Opacity slider and field: Use this slider to adjust the opacity of the element clip that is
in the “Clip” clip well.
• Mid-point Offset slider and field: If there is no clip in the Wipe Matte clip well, the effect
will simply cut from the first Timeline clip to the second Timeline clip. By default, this
cut occurs at the midpoint of the transition. The Mid-point Offset parameter allows you
to roll the cut point to the left or right. This can be useful if the element clip in the
“Clip” clip well completely obscures the screen at some point other than the transition’s
center, making a background wipe unnecessary.
Creating and Modifying Alpha Transitions
You can use several different methods to create alpha transitions.
Asset Wipe Transition Using Three Clips
In this method, you drag three different elements into the three different clip wells to
create an effect in which an animated media element wipes across the screen, revealing
the next scene underneath it. This three-clip method generally ensures the best results
with alpha transitions.
To create an asset wipe transition using three clips
1 Drag the main element clip to the “Clip” clip well.
In this example image, the media element moves across the screen, essentially “wiping”
the frame from right to left.
771 Chapter 47 Adding Transitions