GRASS VALLEY zodiak, Руководство пользователя

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62 Zodiak User Manual
Section 2 — Concepts
Keyframe
A single set of processing control settings can be called a keyframe. A key-
frame defines the state of all or a portion of the switcher. Keyframes are
stored in E-MEM effect registers. Two types of information are associated
with a keyframe:
• On/off settings, including source selections, and
• Parameter settings (variable adjustments).
For example, an effect can consist of a keyframe specifying source 1 on
M/E-1’s background A bus, source 2 on its background B bus, a horizontal
wipe transition type, and a border. These are button settings, as they can be
turned on and off. The border could be thick and colored red. These are
parameter settings because a range of continuous values are available.
Note that this effect could be learned as a 30 frame effect dissolve
(described later in this section), which also has a time value.
Effect Register, Work Buffer, and Current Effect
For clarity, the following description uses single keyframe effects. Multiple
keyframe effects are discussed later (see
page 64 ).
The Zodiak system has 100 E-MEM registers (numbered 0 - 99) able to store
operational settings for immediate recall. Effect register data must be
applied to the work buffer before these settings can affect the system. When
an effect register is recalled, keyframe data is loaded into the work buffer,
and that register number becomes the current effect (
Figure 31 ). The
current effect is an important concept, as it defines a relationship between
the effect registers and the work buffer. Only a current effect can be run or
edited.
Figure 31. Work Buffer and Current Effect
0618_00_37
Effect
Registers
Work
Buffer
Effect 1
Recalled
0 1 2 99
Effect 1
Settings
Current
Effect
Effect 1
Keyframe