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Calculating Keyframe Tracks

To calculate keyframe tracks:

1.   In the Tracker properties panel, select each track you wish to calculate in the Tracks list or click select all.
2.   For each track, select the type of movement the track is intended to output: translation, rotation, or scaling. For example, tracking a feature across the sequence and toward the camera may involve translation and scale.
3.   Scrub through the sequence a few frames and adjust the position of the tracking anchor by dragging the anchor to the location of the pattern. You can use the zoom window to fine-tune your positioning. Continue on through the sequence as required.

TIP:  You can change the magnification of zoom windows by holding Shift and dragging the magnifying glass cursor away from the center of the window.

At each frame, a new keyframe window is added to the right of the zoom window. The keyframe closest to the current playhead frame is highlighted in orange.

It’s a good idea to place more keyframes around areas of complexity or greater movement and fewer on straight forward translation. Generally speaking, a greater number of keyframes produces a better track, but at the expense of processing time.

4.   When you’re satisfied with your keyframes, make sure all your tracks are selected in the Tracks list and then click to track all keyframes.

TIP:  When calculating multiple tracks simultaneously, you may find that some tracks stick accurately to the pattern, while others require resetting and reanalysis. When you’re happy with a given track, deselect it in the Tracks list. This protects it from recalculation, and lets you experiment with better placement for the wayward tracks.

5.   You can also force the selected tracks to recalculate between the two nearest keyframes by clicking in the Viewer toolbar.

See Troubleshooting Keyframe Tracks for help with troublesome tracks.