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To easily configure the trackers appropriately, SynthEyes offers the Hold Region Tracker Preparation Tool , opened from the Windows menu. This tool gives you complete control over the process if you want, but will also run automatically with default settings if you start automatic tracking from the Summary Panel after having set up one or more hold regions.
The tool operates in a variety of modes. Far trackers are not affected.
The default Clone to Far mode takes each tracker and makes a clone. It changes the clone to be a Far tracker, with a lifetime that covers the hold region, plus a selectable number of frames before and after the hold region (Far Overlap). The overlap can help maintain a stable camera pointing direction into and out of the hold region, but
you need to adjust this value based on how much the camera is moving before and after the hold region. If it is moving rapidly, keep Far Overlap at zero.
If the Combine checkbox is off, it makes a new tracker for each hold region; if Combine is on, the same Far tracker covers all hold regions. For typical situations, we recommend keeping Combine off.
The Clone to Far mode will “cover the holes” in coverage. The original trackers will continue to appear active throughout the hold region. If you find this confusing, you can run a Truncate operation from the Preparation tool: it will turn off the trackers during the hold region. However, this will make it more difficult if you later decide to change the hold region.
The Hold Preparation tool can also change trackers to Far with Make Far (all of them, though usually you should tell it to do only some selected ones). It will change them to Far, and shut them down outside the hold region (past the specified overlap).
The Clone to Far operation creates many new trackers. If you already have plenty, you may wish to use the Convert Some option. It will convert a specified percentage of the trackers to Far (tightening up their range), and leave the rest untouched. This will often give you adequate coverage at little cost, though Clone is safer.
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