Grass Valley Kayenne XL Package v.7.0.4 - Manual (Page 194)

192 Kayenne XL Package — User Manual
Section 3 — Control Panel
Note Please note that the supplied fill signal must be on top of a black background.
Otherwise, the addition of the signals will yield a discolored background
signal.
Lum Key
The LUM button selects the luminance key mode. The key control signal is
derived from the luminance component of the key source signal. The key
control signal controls the transition between background and foreground
(=fill) signal.
Lin Key
The LIN button sets the luminance key to a linear mode. The key control
signal corresponds to the non-amplified and unlimited luminance signal.
Preset Pattern Key
The Patt 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 softness
of the preset pattern edge and size of the preset pattern shape can be
adjusted in the Wipe menu. The Joystick in the Joystick subpanel, when
properly delegated, controls the location of the preset pattern on the screen.
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.
Key Over
The Over button changes the current key priority of the delegated keyer.
With each press of the button the priority is advanced by one. When top pri-
ority is reached, the next press of the button set the key priority to the
lowest level.
Key Invert
The Inv button reverses the sense of the key control signal. When Key Invert
is active (button lit), black areas of the key cut signal cause replacement of
the background, and the white key cut areas cause the background to be
retained.