Using the interpolate controls – Blackmagic Design DaVinci Resolve Advanced Panel User Manual

Page 310

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VIEWER

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4.

Drag a box around the area where you’d like to add new tracking points, then click the
Insert button, or press I.

New tracking points are automatically added within the box you’ve drawn to whichever
features are appropriate for tracking. If no appropriate tracking features can be found,
no points will be added.

While in Interactive Object Tracking mode you may also choose to add tracking points one by one.

To add a single tracking point:

1.

Open the Viewer page, and click the Show Object Tracking Controls button at the
bottom righthand corner underneath the Viewer.

2.

Click the Enter Interactive button.

3.

Using your control surface, activate the cursor, move it to the area of interest, and
then press the ‘Set Point’ button within the Tracker window. This will add the tracking
point at the selected coordinate. Click the ‘Exit Interactive Mode’ button to revert to
normal operation.

Using the Interpolate Controls

Sometimes you may want to interpolate a Power Window between two points within a clip. This is
primarily important in situations where features that have obscured the feature you’re trying to track
cause gaps in the tracking information for a clip.

To interpolate a motion path to fill a gap between two tracked sections of a clip:

1.

Move the playhead to the first trackable frame of the moving feature you’re correcting,
and create a Power Window that surrounds it.

2.

Use Track Forward to track the feature as far as you can before it becomes obscured
behind something else in the frame.

3.

When the Power Window stops tracking the feature, stop the track by pressing the
stop button of your control surface.

4.

Open the Object Tracking Controls in the Viewer page.

5.

Click the Key Frame radio button to change the Adjust mode. This is an important step.

6.

Move the playhead to the frame where the feature you’re tracking reappears from
behind the occlusion, then drag the window so that it once again overlaps the feature.

7.

Use Track Forward to continue tracking the feature until the end of the clip. Alternately,
you could have started from the end of the clip and used Track Reverse to track the
feature as far as possible, if that makes it easier.

Now that you’ve identified the gap in your tracking data for this clip, it’s time to set up
the interpolation.

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