GRASS VALLEY zodiak, User Manual

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Zodiak User Manual 57
Keying
Preset Pattern
A preset pattern uses a wipe pattern generator, rather than an incoming key
cut signal to define the hole cut in the background. Key clip and gain con-
trols are not available for a preset pattern, but controls over the location,
size, border, opacity, and edge softness are available.
Figure 23. Preset Pattern
Split Key
A split key uses an alternative key cut signal for keying. On the Zodiak
system, a key split is performed by selecting the desired key fill signal, then
selecting an alternative signal to be used as the key cut (
Figure 24 ).
Figure 24. Split Key
Pattern Key Cut
Key Fill
Background
Background with Preset Pattern Inserted
0618_00_71_r1
Key Fill Bus
2 1 3 4 5
Key Cut Bus
Split Key, Alternative Key Cut Signal Selected
1 2 3 4 5
Video Only Key Video Key Video Key Video Video Only
0618_00_36