Grass Valley DD35 Family v.3.1.5 - Manual (Page 106)

2. Panel Operation DD35 Production Switcher
2 – 72 Operating Instructions – Rev. 16 / 10.2001
Creating a box mask
The Box button serves to select a square mask for masking. The size of the mask
can be adjusted with the four controls Left, Right, Top, and Bottom.
Adjusting the mask position
You can freely position the mask in the picture with the trackball in the Positioner
panel. For further information please refer to section Positioner Panel.
Resetting the box mask
The Mask Reset button serves to create a box mask sized 1/4H, 1/4V in the middle
of the picture.
Creating a wipe mask
Using Pattn 1 or Pattn 2 one of the wipe generators can be selected for masking.
The wipe pattern can be directly selected with the wipe pattern selection keypad
in the Wipe panel or in the Wipe menu. The size of the wipe pattern can be adjusted
with the SIZE control in the Wipe menu.
You can position the wipe mask in the picture with the trackball after you have
enabled Pos in the Wipe panel.
Note: Please note that the wipe generators can be used simultaneously for
several applications which may interact with each other.
Mask store The Store button serves to select the mask store as mask source.
Mask Bus If Bus is used as a mask source, the luminance component of any input signal can
be used as a mask, with adjustable Gain and Clip. In order to select the source,
hold down the Bus key and select the input on the Aux Buses panel . For the mask
bus signal, the Clip and Gain controls operate in the same way as for Luminance
Key.
Note: A mask bus is available in M/E1, M/E2 amd M/E3 only.