Key source button group – Grass Valley Zodiak v.6.0 Mar 15 2006 User Manual
Page 118
118
Zodiak — User Manual
Section 3 — Control Surface Description
Note
Linear Key mode produces a proper key if the source has been set up and
defined properly. If not setup properly, you can compensate by selecting
Adjustable Linear mode.
Adjustable Linear Key
An adjustable Linear Key can be selected by pressing the
Lin Key
and
Lum
Key
buttons simultaneously. The
Gain/Clip Hi
and
Clip/Clip Lo
knobs provide a
limited range of control of Clip Hi and Clip Lo.
Luminance Key
The
Lum
button selects a Luminance key. The
Gain/Clip Hi
and
Clip/Clip Lo
knobs provide a full range control of clip and gain.
Chroma Key
The
Chroma Key
button selects a Chroma Key. The
Gain/Clip Hi
and
Clip/Clip Lo
knobs provide control of Clip Hi and Clip Lo. Additional menu controls
are available via DPOP.
Preset Pattern
The
Pst Ptn
button selects Preset Pattern, which cuts the hole in the back-
ground using an internal wipe pattern generator (or Utility Bus video),
rather than a source’s key cut signal.
Wipe pattern selection and other preset pattern adjustment such as soft-
ness of the preset pattern edge and size of the preset pattern shape can be
adjusted in the Wipe menu
(see
.
The
Joystick
in
the Joystick subpanel, when properly delegated, controls the location of the
preset pattern on the screen.
Note
The Preset Pattern and Masking features share common keyer hardware.
When a Preset Pattern is being used by a keyer, masking will be disabled for
that keyer.
Separate key memory settings are retained for each key type (Linear, Lumi-
nance, Chroma key, and Preset Pattern). Note that the state of the
Video Key
button that determines what signal is used for key cut (see below) is
included as part of each of these source memory settings. With source
memory on, selecting a key type automatically selects the correct key cut
signal.
Key Source Button Group
The two buttons in the Keyers subpanel determine the source of the key cut
and key fill for each key as explained below.