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When solving a stereo shot, you can use either of three different setups: the Stereo solving mode, Automatic/Indirectly, or the Tripod/Indirectly setup. The Stereo mode works for stationary tripod-like shots or even stills when there are nearby features, while the Automatic/Indirectly approach requires a moving camera in order to produce (generally more reliable) startup results. The Tripod/Indirectly setup is required when all trackable features are distant from the camera pair.
You will need to pay more attention to the solving setup for stereo shots than for normal monocular shots, so please read on in the following subsections.
If you hit the big green Auto button, or the Run Auto-tracker button, SynthEyes will prompt you to determine the desired mode of these three. If you are working manually or later need to change the modes, you can do so individually for each camera. Be sure to keep Indirectly, if present, on the secondary camera.
Note that “far” trackers can be an issue with stereo shots that are on a tripod: once a tracker is many times the interocular distance from the cameras, its distance can
no longer be determined, and the stereo solve goes from a nice stereo tripod situation to a combination of two tripod shots, see the section on Stereo Tripod Shots.
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