Tektronix Grass Valley 3000 - Manual (Page 132)

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Section 3 — Switcher Concepts
Effects Editing Definitions
Keyframe — A set of switcher parameters, as set up on the control
panel and in the menus, stored in an E-MEM register at some
point along a timeline. Keyframes define the switcher parameters
at a series of points in time during an effect, and the system does
keyframe interpolation to smooth the motion between keyframes.
The Current Working Buffer tracks the interpolated values
between keyframes.
Timeline — A graphical representation (in the Timeline Menu) of
the keyframes and keyframe durations present on a given enabled
level in the selected E-MEM register. Each enabled level has its
own timeline.
Master Timeline — The top timeline in the Timeline Menu, which
is a composite of the timelines of all enabled levels. All time
positions of the effect are referenced to the Master Timeline and
all editing rules are based on the Master Timeline.
Current Time —The time position of the Time Cursor on the
Master Timeline of the effect.