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Effects and Effect Parameters That Use Tracking Data
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Your Avid editing application calculates the motion of the effect by incorporating the
tracking data and displays the result. For more information, see “Playing Effects That Use
Tracking Data” on page 345.
7. If necessary, continue to adjust the tracking information or other effect parameters until you
are satisfied with the look of the effect.
Effects and Effect Parameters That Use
Tracking Data
You can enable tracking and use tracking data for most segment effects that can move over time,
including Picture-in-Picture, keys, Intraframe
™
effects, titles, and all 3D effects. In some cases,
you must promote an effect to 3D to access tracking for the effect or to access the full range of
tracking options.
Effect parameters that can use tracking data divide into two groups:
• The Position, Scaling, and Rotation parameters let you use tracking data to control the
specific kinds of motion associated with each parameter. You can work with tracking
enabled in any combination of these parameters at the same time. For example, you can
work with tracking enabled in both the Position and the Scaling parameters to control both
the position of an effect on the X and Y axes and the size of the effect.
• The Tracking parameter category provides a more flexible way to define and use tracking
data by allowing you to enable up to four trackers. The Tracking parameter is the only
parameter that lets you work with more than two trackers at one time and is therefore the
only option for controlling complex motions that involve perspective changes or tilting of
the effect.
You can also use the Tracking parameter with only one or two trackers enabled to control
simpler motions such as position and scaling. This is the only option for such control in
effects that do not have Position, Scaling, and Rotation parameters, such as Intraframe
effects. This is also an alternative method for controlling simpler motions in effects that do
have Position, Scaling, and Rotation parameters.
The two groups of parameters that use tracking data are mutually exclusive. When you enable
the Tracking parameter, tracking is automatically disabled in the Position, Scaling, and Rotation
parameters. When you enable tracking in the Position, Scaling, or Rotation parameters, the
Tracking parameter is automatically disabled.
The following table provides a complete list of the effects and effect parameters that can use
tracking data. For reference information on these effects and their parameters, see “Effects
Reference” on page 562 and “Effects Parameter Reference” on page 610.