NewTek TriCaster TCXD300, Руководство пользователя, Страница: 89 / 290

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Figure 68
Please note that this setup leaves both primary Overlay channels available for other purposes –
such as add two more live PiPs, graphics or a title composition).
4.11.3 LIVESET™
We’ve saved the best for last in connection with Virtual Inputs , however. This is also where we
gain access to TriCaster’s virtual set technology called LiveSet .
Actually, if you’ve been following along, you have already used a LiveSet – a simple one, named
“
A over B ” (Figure 69), which is the default.
Figure 69
As its name implies, A over B simply produces a composite of the video source you select as
Input A displayed on top of Input B . In cases where LiveMatte is active for Input A, or if Input A
has an alpha channel (as might be the case, for example, for a 32bit image file), Input B will show
through transparent areas in the composite result. We saw how that worked in back around
Figure 67.