Filter
Top Products
4-66
Section 4— Switcher Operations
Constant Duration Mode
Constant Duration editing changes the way keyframes are
inserted and deleted. In Constant Duration mode, adding or
deleting keyframes does not change the total effect duration. It
does modify the preceding keyframe duration to keep the total
effect duration the same.
NOTE:
The total effect length can be changed by inserting keyframes
after the last keyframe, or before the first one. The first and last keyframes
cannot be deleted in this mode, as they determine the length of the effect.
When you do a Cut in Constant Duration mode, the duration of
the removed keyframe is added to the duration of the previous
keyframe. The Time Cursor remains positioned at the point of
deletion.
Using Path Types To Change An Effect
You can change the appearance of a effect, or parts of an effect by
changing the path type. Path type selection is the way you can
control parameter changes between keyframes. The path type, set
in the Keyframe Path Menu, determines the type of interpolation
that occurs between keyframes of an effect. Each functional group
of each keyframe can have its own path type.
The available path types are Hold, Linear, S-Linear, and Curve.
When LINEAR is selected with the PATH TYPE soft button in the
Keyframe Menu, linear interpolation is applied to each parameter
that changes between one keyframe and the next. This provides
constant motion with no acceleration or deceleration.
The S-LINEAR path type involves accelerating and decelerating
the parameters. The change to each parameter begins from a
complete stop at the starting keyframe, slowly leaves that
keyframe, moves faster through the midrange of the keyframe
duration, then decelerates as it approaches the destination
keyframe, and comes to a complete stop at the keyframe. (The “S”
describes the shape of the curve when graphed against time.)