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dragging and dropping it to your edit point from
The Alpha Transition is added to the edit
Load the Alpha Transition into the Viewer by
double clicking on it or selecting it in the timeline
and typing return. You can also right click and
FIG. 7 - NOTE THE THREE CLIP WELLS AND OTHER PARAMETERS OF
ALPHA TRANSITIONS WITHIN THE TRANSITION EDITOR
The Alpha Transition will now appear in the
Transition Editor located in the Viewer. Note the
three drop wells here for each element of the
Drag and drop the appropriate clip from the
Browser into the appropriate clip well in the
Transition Editor. Each clip and clip well is
a. “Clip” clip well: Drag and drop the main “Clip”
clip here, it’s the top most one.
b. Clip Alpha Matte clip well: Drag and drop the
Clip Alpha Matte clip here. It’s the clip well in
c. Wipe Matte clip well: Drag and drop the Wipe
Matte clip here, it’s on the bottom.
Make any adjustments, if you like, with the
following parameters. You usually won’t need to
change anything here, but check it out, if you like:
a. Scale Transition Asset Durations: By default, the
Alpha Transition will change its duration to the
length you desire in your transition. You want
this. However, this may slightly degrade your
effect as an “under the hood” speed change
must be applied to the clips. I usually leave
b. Reverse Transition Assets: You’ll have to check
transition. You see, the transition assets are
actual clips that need to play in reverse. Don’t
use the standard Reverse Transition button.
c. Opacity: This sets the opacity level of the “Clip”
clip. Rarely, if at all, would I ever adjust this.
Go ahead if you need to.
d. Mid-point Offset: You may need to adjust your
mid-point offset if the Wipe Matte does not
precisely line up with the timing of the “Clip”
clip. You can also use it in place of a Clip Alpha
Matte with Alpha Transitions that momentarily
obscure the screen, such as a Lens Flare.
See the manual for more on that.
Voilà mes amis! You’ve got your Alpha Transition in
place. Render and playback at your leisure. How do
you like Alpha Transitions now?
FIG. 8 - APPLE’S “MIST” ALPHA TRANSITION
HOW TO MAKE ALPHA TRANSITIONS
You already know that you can use the stock Alpha
Transitions that you just downloaded from Apple
forever and royalty-free. Did you know you can also
make your own? Imagine your client’s corporate
logo wiping across the screen as a transition and
you’ve got the right idea. Once you create Alpha
Transitions, you can use them over and over again
too. Corporate clients and broadcast entities love
this. Pretty cool, no?
Now there are a number of techniques you can use
to create Alpha Transitions, however, I’ll have to
keep it simple since this is only an article and not a
Alpha Transition creation.
as Apple did for you. These Alpha Transitions
Wipe Matte. This method ensures the best results