9

Add External Event 341
An External event is always a child event. If you
select an event in the queue before you add the
External event, the External event becomes the
selected event’s child. C hi ld events are evaluated
before their parents.
Procedure
To add an external event:
1.
Select an event.
2. Click Add External Event.
An Add External Event dialog appears.
3. Click Browse.
Afiledialogappears.
4. Use the file dialog to choos e the external
program you want to execute, and then click
OK.
5. If the external program accepts command-line
options, enter these in the Command Line
Options field.
6. If you want the external program to read the
current Video Post image, tur n on Write Image
To C l i p b o a rd.
7. If you want Video Post to use the result of the
external program, turn on Read Image From
Clipboard.
8. Click OK.
If you selected an event, the External event
becomes its child. If no event was selected, the
External event appears at the end of the queue.
Wa rning: The image that the External event reads
from the clipboard is placed in the Video Post queue.
If the external program does not do what you want,
this can erase or overwrite the result of all Video Post
post-processing.
Inter face
The Add External Event and Edit External Event
dialogs have the same controls.
External Event group
Label—Lets you give the e vent a unique name. A
unique name can make the external event easier to
distinguish in a long list of events.
Browse—Lets you select an external progra m. For
example, you can specify Adobe Photoshop™ or
another image-processing application.
Command-Line Options group
For external programs that accept command-line
options, lets you send real-time data to the external
program. 3ds Max parses three special commands.
Whenfoundinastring,thesecommandsare
replaced with real-time data, as follows:
• %f is replaced with a 4-digit frame number (for
example, 0001)
•%wisreplacedwitha4-digitimagewidth(for
example, 0640)
• %hisreplacedwitha4-digitimageheight(for
example, 0480)
For example, if the g iven command-line option is: