Tektronix Camcorder 2200 Manuale Utente

2-24

In the signal path through the Model 2200 switcher, keys, 
including preset patterns, occur before the effect send crosspoints. 
This allows any key, including a preset pattern, to be sent to an 
external digital video effects device via an effects send. Transition 
wipes, however, occur after the effects send crosspoints.

After pressing the 

 function the 

 indicator 

is turned off.

Pressing the

 (Secondary Preset Pattern) 

button selects the optional secondary wipe generator as the key 
source. Operation of the keyer while

 is 

selected is similar to that when

 is selected.

The secondary wipe generator option provides wipe pattern 
selection independent of the primary wipe generator. When the 
secondary wipe option is not installed, only the secondary preset 
pattern edge attributes are independent (preset size, softness, soft 
symmetry, border width, border matte, border opacity, and 
normal/reverse).

All pattern controls are present on the wipe subpanel and wipe 
menus. Refer to the wipe subpanel description, later in this 
section, for a discussion of these controls.

Primary and Secondary Preset Patterns can be used with all 
keyers in layered mode.

The

 and

 buttons determine whether the 

key is filled with key bus video or a locally generated matte. These 
buttons are mutually exclusive, one of the two buttons is always 
active and illuminated.

 and

 operate independently from the key 

source buttons. All keyer modes except the A and B keyers 
operate with either video or matte fill.