4. Operating
Barco – TransForm A - Workstation for Windows – DOC-3266-2 – Revision 16 – August 2007
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4-7
4.2
Features of video and RGB display
4.2.1
Basic video display mode
Normally the videos and RGB data are displayed in windows. These windows may be moved and resized on their
respective display area and can overlap like other application windows.
4.2.2
Channel video
Video and RGB signals respectively can also be displayed without borders and fitted to complete projection cubes
(1 to n×n, depending on configuration). This is called channel video.
4.2.3
OmniScaler
The O
MNI
S
CALER
is used together with graphic cards in digital mode. After the graphic card generated the graphic
data stream, it is transferred to the O
MNI
S
CALER
, where the video and RGB data is integrated to it. Each input
source can be individually scaled up to full-screen and higher and color depth can be selected independently
from the color depth chosen for the Windows 2000 or Windows XP desktop. One O
MNI
S
CALER
provides the capabil-
ity to process up to 128 video and RGB inputs simultaneously.
Video and RGB data is triple buffered. Therefore only entire frames are displayed in sync with the graphical data
to avoid frame tearing.
4.2.4
Video switcher
By means of an optional video switcher multiple analog sources can be connected to one port of an input card. In
the dialog box of the video software the sources can be switched during operation.
For the operation of distributed video also a video switcher may be used. The configuration of the video switcher
is described in section
4.2.5
Genlock
T
RANS
F
ORM
A in an OmniBus configuration provides the ability for genlocking. Either a video of a Q
UAD
A
NALOG
V
IDEO
C
ARD
, a D
UAL
DVI
I
NPUT
C
ARD
, of a S
TREAMING
V
IDEO
C
ARD
or the clock of an AGX
G
RAPHIC
C
ARD
,
UGX
G
RAPHIC
C
ARD
or an
external studio signal can be used as reference signal. For the functionality of genlock, please refer to section
.
