User Manual

Table Of Contents
Tracker [TRA]
The Tracker node
Tracker Node Introduction
The Tracker is used to detect and follow one or more pixel patterns across frames in moving
video. The tracking data can then be used to control the position or values of other nodes in
the composition (for example, the center of a Light Rays node). Additionally, trackers can be
used to stabilize an image or to apply destabilization to one image based on the motion
of another.
For more information, refer to Chapter 15, “Using the Tracker Node” in the Fusion Studio
Reference Manual or Chapter 65 in the DaVinci Resolve Reference Manual.
Inputs
The Tracker has three inputs:
Background: The orange image input accepts the main 2D image to be tracked.
Foreground: The optional green foreground accepts a 2D image to be merged on
top of the background as a corner pin or match move.
Effect Mask: The blue input is for a mask shape created by polylines, basic primitive
shapes, paint strokes, or bitmaps from other tools. Connecting a mask to this input
limits the tracking to certain areas.
Basic Node Setup
Tracker nodes can be applied inline with other nodes or as a branch from the clip you want to
track. When used inline, an image can be stabilized by connecting it to the orange background
input. After the image is tracked, setting the Tracker’s Operation menu to Match Move will apply
a stabilization to the connected image.
A Tracker node connected inline to an image for stabilization
When used as an offshoot from the node tree, an image can be tracked and then that tracking
data is published for use on another node somewhere else in the node tree. The output of the
Tracker does not need to connect to another node. The tracking data is published and can be
used via the Connect To contextual menu.
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