NewTek TriCaster TCXD300, User Manual

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Input Proc Amp adjustments are applied after LiveMatte is processed, which can help when
composing greenscreen shots to match a background or LiveSet . You may also notice that
changes to Proc Amp settings affect stopped (or frozen) sources, including live camera feeds.
8.2.3 LIVEMATTE
The second tab in the Input Configuration panels is where you configure TriCaster’s powerful
realtime keying system for live production, LiveMatte .
Figure 115
Keying is a popular and powerful method of combining two images — whether photos, video
clips or live camera streams. The process involves eliminating a portion of the image (effectively
cutting a digital ‘keyhole’ in it) to reveal a user-defined background scene. It also plays an
important role in the workflow of
LiveSet , TriCaster’s powerful virtual set technology.
LiveMatte’s controls are deceptively simple, making a great deal of complex digital manipulations
easy to use. Even so, much can be said about getting the best results. For that reason we’ve
devoted a whole chapter in this manual to discussing it (please see Chapter 14).
When LiveMatte is enabled for a specific source, a small green flag is displayed in the upper-right
corner above the corresponding monitor in any of the three main monitor tabs.