Game Development Reference
In-Depth Information
Figure 1.15 An effect control
point, seen here in the Effect
Controls panel for the Twirl
Center property.
Effect control points can be adjusted in three ways. You can
simply adjust the X-and Y-dimension hot text values in the Effect
Controls panel, as you would any other values. You could also
click the effect control point icon in the Effect Controls panel,
then click the desired location of the effect control point in the
Composition panel. Finally, you can also manually adjust the
effect control point in the Composition panel by using the effect
control point icon. This icon looks like a circle with a plus sign in
the middle. Note that effect control points can also be targeted by
the motion tracking system in After Effects (Fig. 1.16).
Figure 1.16 An effect control
point in the Composition panel is
shown. It is the red circle with a
plus sign in its center, in the upper
left-hand corner of the screen. In
this instance, it is controlling the
center of the twirl.
Random Seed
The Random Seed parameter creates randomization using the
same settings that you already have. At fi rst, this may seem con-
fusing. How can it match your exact settings and also be random
at the same time?
Think of it this way. Let's say that you and some friends were
going to get dinner together. After a few hours of arguing, you
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