Grass Valley 1200 Operation Manual - Manual (Page 173)

4-11
Luminance and Linear Keying
Key Transition
Effects keys can be cut, mixed, or wiped on air in much the same
way as backgrounds. Both the effects keys and a background can
be transitioned on or off together or separately. The Downstream
Keyer has separate controls and must be transitioned separately.
1. Set up the key.
2. Select Transition [Key 1] , [Key 2] , and/or [Bkgd] to choose
which layer(s) the transition will affect.
3. If both effects keys are on air and you want to adjust which
layer is on top, select the
[Key Over] button to toggle the
priority. You can also select the [Prior/Depth] top menu
button and use the Priority/Depth menu to adjust priority or
depth. In the menu you can set key priority to any value
between 0 and 100%. If you have the Depth option, you can
adjust relative depth of the keys and softness where they
intersect.