The Program And Preview Rows; The Fx Row; Transitions; Video Layers - NewTek TriCaster 40 User Manual

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FX, Program, Preview Selectors
Figure 33

3.3.1 THE PROGRAM AND PREVIEW ROWS

From top to bottom, the three Switcher rows are labeled FX, Program and Preview. Clicking a button in the
Program or Preview row selects the active video source for that video layer.
The Program row selection determines the dominant video stream of the Background (BKGD) video
layer – the bottom layer of the composition on Program output.
Normally, the Preview row selection determines what is queued up for display in the Background layer
by the next (BKGD) Take or Transition operation.
Note: The Program and Preview rows are extended with buttons labeled V1 to either V4. These control display of
output from TriCaster's Virtual Inputs (Section 3.8)

3.3.2 THE FX ROW

The FX row selection supplies an auxiliary internal video channel
which can serve in a variety of ways. For example, it can supply the
background scene for a Virtual Input, or be assigned to an Overlay or
DSK channel (see Section 3.4).
3.4

TRANSITIONS

3.4.1 VIDEO LAYERS

The concept of video layers is central to understanding how
TriCaster's Switcher and Transition controls work together to supply
the video seen on Program Out.
TriCaster's Background layer (often shortened to simply 'BKGD') is
always the base for the video composition displayed on Program out. In
addition to BKGD, three additional 'primary layers' can contribute to TriCaster's final
Program output:
Switcher
Main Transition
Controls
The
supplies the 'bottom-most' video
layer, seen behind any other layers
shown on Program Output.
At any given moment, BKGD may
consist of a mix of video streams
from Program and Preview rows, or
even a more complex composition
formed from the numerous sources
of one or even more Virtual Inputs.
Transitions
Local Layer Controls
Background
(BKGD)
layer
26

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