Tektronix Grass Valley 3000 - Manual (Page 196)

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Section 4— Switcher Operations
4. Setup a new keyframe - chose a new wipe pattern and move
it around.
5. Press INSRT AFTER . Note that new keyframe #2 is added at
the current (0:15f) Time Cursor position. Previous keyframe
#2 becomes keyframe #3. Note that the overall effect time of
2:00 (2 seconds) has not changed. The durations of ‘previously
numbered’ keyframes 1 and 2 are changed to accommodate
the newly inserted keyframe.
Version 5.2 and later software changes
Whether keyframes are inserted “on a keyframe” or “on the path”
is now determined by the presence or lack of keyframes on the
delegated individual level timelines, rather than on the Master
Timeline.
With previous software versions
■ If the Master Timeline cursor was on a keyframe, an Insert
operation (
Insert Before or Insert After ) used the “on a
keyframe” rule; that is, a new keyframe was added before or
after the current keyframe on each delegated level, and that
added keyframe lengthened the overall duration of those
timelines.
■ If the Master Timeline cursor was not on a keyframe, the
Insert operation used the “on the path” rule; that is, a new
keyframe was added at that point-in-time on each delegated
level, subtracting the added keyframe’s duration from the
current keyframe’s duration. Therefore, the added keyframe
did not add to the overall duration of that timeline.
With software version 5.2, the system makes decisions as to
whether to use the “on a keyframe” or “on the path” rules based
on whether keyframes are present on the delegated levels, not
whether they are present on the Master Timeline.