To
make the ball look as if it is "rolling"(ball on the
right), and not "sliding"(ball on the left), across
the snow you will create a "movie within a movie."
That is the bowling ball will be a "movie clip" with
3 finger holes that move up and over the ball. This gives the
illusion of the ball rolling. The holes also get bigger towards
the middle of the ball. This gives the ball a 3D illusion. The
bigger holes suggest they are closer, so that the ball seems "fatter"
in the middle.
The "rolling ball" movie clip is then moved across
the snow.
NB. YOU WILL ONLY SEE THE COMBINED EFFECT OF THE MOVING "ROLLING
BALL" WHEN YOU "TEST THE MOVIE."
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