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Tracker Technical Directors should demonstrate a solid understanding of basic
principles of 3D graphics, especially linear perspective and
other properties of 3D space, the properties of camera parameters
such as focus and focal length, 3D modeling and deformation
tools, local coordinate versus world coordinate space, 3D
hierarchies, matrices, rotations, translations, scale, and
gimbal lock. Past successful candidates have demonstrated
this understanding by match move experience, or a combination
of photography, computer animation, and programming experience.
A Tracker TD also needs the ability and willingness to perform
repetitive, highly detailed and tedious tasks and the ability
to perform visual and analytical problem solving in 3 dimensional
virtual space.
The Tracker TD's major responsibility is to meticulously
and accurately animate virtual camera motion and parameters
to match to live-action camera movement. A good Tracker Technical Director
will be able to distinguish between a pan vs a dolly, a zoom
vs a truck-in from the live-action plates alone. Besides cameras,
Trackers will also track moving objects within a shot.
Sometimes these objects are rigid bodies, other times they
are dynamically changing, such as animals.
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