Apple DVD Studio Pro 4 - Manual (Page 494)

Start At Loop Point Checkbox
You can add a loop point to your motion menu that defines when the highlights appear
and where the menu jumps back to when it reaches the end. A jump to a motion menu
normally goes to its start point and begins playing from there. There are times, however,
when you might want the jump to go to the loop point instead, ensuring the highlights
appear immediately and avoiding forcing the viewer to sit through the first part of the
menu.
Selecting the Start At Loop Point checkbox configures the jump to play the menu from
the loop point. See
About the Motion Settings for more information. See Jumping to a
Menu’s Loop Point for an example script using this feature.
Set GPRM Command
The set GPRM command is used to determine a value that is then placed in a GPRM
location. There are four elements to set:
• The operation type: There are 11 operations you can choose from, ranging from a simple
move to a “bit-wise exclusive or.” See Operation Types for details on using these
operations.
• The source type: You choose from five possible source element types that can be used
as the source. See Source Element Types for details on the element types.
• The source value: Once you choose the source element type, you can then choose the
actual element. For example, if you choose an SPRM element type, you use this setting
to choose the specific SPRM to use as the source.
• The GPRM target: You choose a GPRM location where the value gets written. Depending
on the operation you choose, this GPRM location may also be the second value in a
math operation. For example, if you choose a subtraction operation, the source value
is subtracted from the current target value and the result is written to the target location.
Choose the operation.
Choose the source
element type.
Choose the GPRM
target.
Choose the actual
source element.
To configure a set command
1 In the Script Command Inspector, choose the operation from the Operation pop-up menu.
2 Choose the source element type from the Source Type pop-up menu.
3 Choose the actual source element from the Source Value pop-up menu. The list of
elements is determined by the source element type selection set in step 2.
494 Chapter 20 Creating Scripts