PRG MBOX EXTREME, Руководство пользователя, Страница: 82 / 136

74 MBOX EXTREME
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MEDIA SERVER USER MANUAL
All of the various properties of this transition have been expanded to show their "children." It is critical to get all of the
properties set to both correct types and appropriate values with the only real exceptions being the Thumbnail and
UserVisibleName properties. If you fail to use the correct type or an appropriate value for a property then it is likely
that the entire effect or transition will fail when used with Mbox Extreme. It is best to start by modifying values to a
small extent to examine the result of those changes.
The Quartz Composer application that is available as part of Apple’s Developer tools can be helpful in determining
how the various properties of an Image unit work. However, keep in mind that the values used in Mbox Extreme’s
effect and transition property list don’t always match the values you will see in Quartz Composer.
Properties and values used for the White Diagonal transition:
+
Filter Name : string = CISwipeTransition – This is the name of the Image Unit for this particular transition. The "CI"
portion is an acronym for CoreImage. From this, you can tell that this Image Unit is one that Apple has created.
Most PRG Image Units will begin with "ME," short for Mbox Extreme.
+
inputAngle, Value : number = -0.7854 – This is the angle of the swipe of the transition.
+ inputColor, Color : array = four values (Red, Green, Blue, Alpha) = 1, 1, 1, 1 – These four values relate to the color
of the swipe of the transition. Although this includes a value for alpha, in the case of this transition, there is a
separate control, inputOpacity, that controls the opacity of the edge.
+
inputExtent, Extent : array = two values (X, Y) = 1, 1 – These two values relate to how far across the image the
transition will move from beginning to start. To ensure a complete transition, these two values must be left at 1.0.
+
inputOpacity, Value : number = 1 – This is the opacity of the colored swipe of the transition.
+ ineptitudes, Value: number = 150 – This is the width of the colored swipe of the transition.
+
inputImage, inputTargetImage, inputTime, outputImage : You should not edit these values.
So if we’d like to change the transition around a bit, you can change the following properties:
+
inputAngle – 0.7854
+
inputColor – 0, 1, 0, 1
+ inputOpacity – 0.5
+
inputWidth – 500
+
UserVisibleName – Green Diagonal
You should always keep in mind that if you edit an existing entry in the effects or transitions plists, all instances of that
effect or transition will be changed. If you want to make a new version of the effect or transition, you should add a new
entry to the appropriate plist and give it a new, unique number. Alternately, you can save your edits to a new .txfx or
.txtx file and place it in the correct folder.