9

312 Chapter 19: Video Post-Production
Video Post Toolbar (page 3–323):ProvidesVideo
Post commands.
V i deo Post Queue
Rendering menu > Video Post > Video Post window >
Video Post Queue
Video Post Queue provides a hierarchical list of
the images, scenes, and events to b e composited.
TheVideoPostqueueintheVideoPostdialog
is similar to other hierarchical lists in the Track
View and Material Editor. In Video Post, the list
items are images, scenes, animations (page 3–909),
or external processes that together make up the
queue. The items in the queue are called events.
The order that the events appear in the queue is
the order in which they are executed, from top to
bottom. Consequently, to correctly composite
an image, the background bitmap must appear
before,orabove,theimagethatistooverlayit.
Thereisalwaysatleastoneiteminthequeue
(a placeholder labeled Queue). It is the queue’s
parent event.
Thequeuecanbelinear,butsomekindsofevents,
such as Image Layer, combine other events and
become their parent.
Procedures
To ad d a n event to the queue:
•Clickaneventbutton.
When you add an event, a dialog displays w here
you can specify settings for that event. The
settings offered on the dialog depend on the
type of event; some events have different kinds
of subtypes.
In general, the new event appears at the end of
the queue - but some kinds of events require
that you first select one or more events in the
queue. An event button is unavailable if the
selectioninthequeue(ortheabsenceofone)is
notlegalinputtothebutton’stypeofevent.
To highlight an event already in the queue, click
its icon, label, or range-bar area.
To delete a ny event in the queue:
• Select the event and press the Delete key.
You can delete both enabled and disabled
events, w hich are unavailable.
To switch the positions of two events in the queue:
1.
Highlight both events.
2. Click Swap.