NewTek TriCaster 8000 - Manual (Page 179)

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8.2.7 HOTSPOTS
FIGURE 138
The lower portion of the LiveMatte tab in the Input Configuration panel is devoted to
Hotspots – TriCaster’s powerful interactive automation feature.
A Hotspot is a square, user-defined region of the screen that (when active) detects
opacity changes inside its boundaries. This is why the feature is paired with
LiveMatte in the TriCaster interface (Hotspots do not work without LiveMatte being
enabled).
With LiveMatte properly configured, the Hotspot feature can trigger a macro when
opaque pixels are newly detected in an active Hotspot (as, for example, when talent
in a greenscreen set walks into that location in the frame), and a second macro when
all opaque pixels move out of the region.
All manner of creative implementations are possible. Hotspot setup, options and use
is discussed in depth in Chapter 17, Macros, Automation and Remote Control.
8.2.8 TRACKER
(TriCaster 8000 only) The Tracker tab provides control over TriCaster’s realtime
motion tracking features.
This feature allows you to choose a colored region of the video frame using tools
similar to those found in the LiveMatte tab (Section 8.2.6).