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Chapter 9
The frame rate describes the amount of frames the Flash Player will
play each second. The higher you set the frame rate, the smoother your
animations will play. Traditional animations play at a rate of 24 frames
per second, the same rate at which film plays, while NTSC video plays
at 29.97 frames per second. It is important to keep your audience in
mind and what the destination of the Flash movie will be. For delivery
via the Web, you should consider the processor speeds of the destina-
tion computers. If you set the frame rate too high, the computer may
not be powerful enough to play all of the frames. When this happens,
Flash will drop frames in order to stay in sync. Try to avoid this scenario
because it can make your animations play choppily. Consider where
your Flash movie is going to be played and choose accordingly. Avoid
frame rates over 30 fps, and, for slower computers, you can go as low
as 12 fps, which is the default frame rate in Flash.
Changing the Frame
Rate
Change Frame Rate
Click a blank area on the Stage.
Click in the Frame Rate field in the
Property Inspector or at the
bottom of the Timeline, and then
type in a frame rate.
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Document settings appear in the Property Inspector
when nothing is selected on the Stage or the Timeline.
The frame rate is also
available to change at the
TROUBLE?
If the tween is not
preserved when you use the
reverse frames command, you
might not have applied motion or
shape tweening to the end
keyframe in the tween. Flash only
requires you to apply tweening to
the starting keyframe in a tween. It
is implied that it tweens into the
next (or end) keyframe. To fix this,
do one of the following: (1) Before
you reverse frames, select the end
keyframe and apply Motion (for
motion tweening) or Shape (for
shape tweening) to it from the
Property Inspector. (2) After you
reverse frames, select the
beginning keyframe (which use to
be the end keyframe) and apply
Motion (for motion tweening) or
Shape (for shape tweening) to it
from the Property Inspector.
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Frames before reversing
Click and drag to select a range of frames
Frames after reversing
Did You Know?
You can select an entire layer and
Timeline, and then click Keyframe.
TIMESAVER
Press F6 to insert
a keyframe.
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Keyframe is added
Did You Know?
You can click and drag the object on
the Stage and move it to another coor-
dinate.
Flash automatically creates a
keyframe on the active frame if the
playhead is in a motion tweened
framespan.
From the Library of Wow! eBook
ptg
Chapter 9 Animating with Classic Tweening
265
Remove a Keyframe from a
Classic Tween
Click on the keyframe you want to
remove in the motion tween.
Click the Modify menu, point to
Timeline, and then click Clear
Keyframe.
The keyframe is cleared but the
duration of the tween is preserved.
The first and last keyframe are
in the Property Inspector.
Select the Scale check box in the
Property Inspector.
Change the size of the object on
either keyframe with any of Flash's
transform methods including the
Free Transform tool, the Transform
panel or the transform options in
the Modify menu.
To preview the animation, drag the
playhead in the Timeline, or click
the Control menu, point to Test
Movie, and then click Test.
Flash gradually increases or
decreases the size of the object.
TIMESAVER
Press
A
+Return
(Mac) or Ctrl+Enter (Win) to test it.
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First keyframe Last keyframe
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Scale and position changes tweened
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