Apple Motion 4 - Manual (Page 953)

Adjusting Parameters in the Inspector and HUD
Each filter has its own distinct set of parameters. These parameters can be adjusted in
one of two places: the Filters tab of the Inspector or the filter’s HUD. As with all parameters
in Motion, the HUD contains the most essential parameter controls for modifying a filter,
whereas the Filters tab in the Inspector contains the filter’s entire list of editable
parameters.
Both the HUD and the Filters tab reference the same parameters—changing a parameter
in one automatically changes that parameter in the other. Frequently, the controls available
in a filter’s HUD represent all parameters except for the position parameters. For example,
compare the controls for the Fisheye filter in the Filters tab to those available in the HUD:
Filters tab HUD
Most filter parameters have only a single set of numbers that represent their value.
Parameters with a disclosure triangle, however, may have additional numbers that
represent a different way of describing the same value. In the case of the Center parameter,
the numbers indicated in the value sliders are absolute values, but the X and Y values
under the disclosure triangle represent percentages. If the defaults for X and Y are both
0.5, that represents the center of the image. Changing the percentages updates the
absolute values in the value sliders.
For more information on accessing the Inspector and HUD controls, see Inspector and
HUD .
953 Chapter 16 Using Filters