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Keyframe Operations
HOLD stops a crosspoint from changing when an effect is recalled
or a keyframe with new source information is encountered. All
parameters hold at their starting values throughout the keyframe
duration. HOLD stops the interpolation process between
keyframes, causing a “pop” between changed positions.
The CURVE pathtype function may be used with both Wipe
(WIPEXFORM) and Framestore (FSTOREXFRM) Transform
selections. CURVE includes Tension, Continuity, and Bias soft
knob controls, described in the Appendices of this guide.
When used with the CURVE path type, Wipe Transform has four
parameters: Horizontal, Vertical, Size, and Aspect. Framestore
Transform has two parameters: Horizontal and Vertical.
The Wipe or Framestore image may be either a video or key signal.
In either case it may be cropped (masked) in either Video Store
Crop Menu or Key Store Crop Menu.
Variable parameters can do all four types of interpolation;
selectors can do only Holds. For each keyframe, all parameters use
the same path type to the extent that they can.
Using Path Types — Procedures (Hold, Linear, S-Linear, Curve)
1. Access the Keyframe/Keyframe Path Menu.
2. Use GET or PUT to copy one of your effects to an empty
register.
3. Experiment with the four different Path Type selections and
see how each changes the effect.