NewTek TriCaster Advanced Edition User Guide - Manual (Page 155)

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Continue to configure both LiveMatte and the Tracker for the video clip in DDR 1:
11. In the LiveMatte tab, click Reset to update the keyer settings to their defaults, and enable the
LiveMatte switch at upper-left.
12. Use the Scrub bar under the playlist in DDR 1 to advance through the clip until the colored card is
visible in the frame.
13. Switch to the Tracker tab, click the Color picker (eyedropper) keep the mouse button held down, and
drag the pointer over the color card and release to assign that color to the Tracker for DDR 1.
14. Boost the Tolerance setting to 34%.
15. Press Play for both DDRs.
Let’s take a moment to review our progress, before completing setup steps:
On the Program monitor, you should see the talent clip overlaid on the image from GFX 1 (LiveMatte is
turning the green pixels in the DDR 1 clip transparent). You’ll also see imagery from DDR 2 displayed
wherever the (originally) orange card appears in the frame.
What’s happening is that the Advanced Tracking effect is applying the values from the (DDR 1) Tracker
for a secondary iteration of LiveMatte. Our LiveMatte settings cut away the green, revealing the C layer
behind. Afterward, the orange color range is also keyed out, revealing the B source through the
transparent region.
Up to this point, the effect takes advantage of the Tracker color values, applying them as a secondary keyer –
but we haven’t yet done anything with the actual motion data the Tracker is supplying to TriCaster. Let’s do
so now.
16. Click the Position button for input B to open the Position Panel for that layer.
17. Select DDR 1 in the Use source Tracker menu.
FIGURE 167
18. Enable Follow Tracker (Figure 167).
The result on your Program monitor should look much like Figure 168; full motion video appears wherever
the orange card appears in the foreground clip. This is the standard setup for the Advanced Tracking effect,
though it’s possible to use it in different ways too.
Further Notes: Advanced Tracker 2 provides much improved compositing. (The original effect is provided for legacy
purposes, but might also produce a better result in rare cases where a source has embedded transparency). Among