Specifications
41
Creating and Importing a Motion Project
as an Alpha Transition
DVD Studio Pro includes an Alpha Transition feature. Alpha Transitions make it possible
for you to create customized transitions for use in your menus, tracks, and slideshows.
All transitions have a start and end frame, based on where the transition is being used.
The standard transitions are able to transform the start and end frame video, providing
the ability to have a variety of effects, such as rotating or blurring, directly applied to the
video. An Alpha Transition does not directly transform the start and end frame video—it
simply transitions from the start to the end based on QuickTime movies you create.
Creating an Alpha Transition requires from one to three QuickTime movies, depending
on the type of transition you want to create.
 Do you want any kind of video other than the start and end frames to appear during the
transition? For example, if you want a spinning DVD to fly across the screen during
the transition, you must have an asset movie providing the flying DVD image.
 Do you want to see the start and end frames on the screen at the same time during the
transition? In the example with the spinning DVD, maybe you want to see the start frame
around the outside edge of the DVD and the end frame in the DVD’s center. To see the
start and end frames at the same time, you must have a background matte movie.
 Do you want a simple wipe transition that uses a custom shape? You can use a
background matte movie to create a wipe transition with hard or soft edges in any
shape you like.
There are several components to an Alpha Transition:
 Asset folder
 Asset movie
 Asset matte movie
 Background matte movie
Each component is described in the following sections.
The DVD image is from the
asset movie, with an asset matte
movie controlling where the
background video appears.
Start frame
(red in this example)
End frame
(blue in this example)
The background matte
movie (not visible)
controls whether the
background shows the
start or end video.