Ulead MEDIASTUDIO PRO 7, Руководство пользователя

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CG INFINITY: CHAPTER TWO 337
6.
Move the Preview slider to the start or click on the Start Key frame
button to return the object back to its beginning position.
7.
Click the Play button to see how the object moves and changes over
time. (To see changes in an object’s style, you need to play the moving
path in Preview mode, not Wireframe.)
Changing the size of objects over time
Changing the speed of an object
In CG Infinity, changing an object’s position on a moving path at a par-
ticular key frame controls the speed at which the object travels. For
example, if you place a key frame at frame 15 of the moving path, and
then move the object further along the path, you create a fast motion
effect as the object has to cover more ground within the same time period.
Likewise, by moving the object back, you create a slow motion effect as
the object has less distance to travel within the same time period.
To change the speed of an object:
1.
Select the object you want to change with the Moving Path tool. The
moving path of the object appears.
2.
Click a key frame in the Time Control Panel. The object moves to
that position on the moving path.
3.
Drag on the bounding box of the object and move it to where you want
it to appear at that point in the path. (Moving forward creates a fast
motion effect: back a slow motion effect.)
4.
Move the Preview slider to the start or click on the Start Key frame
button to return the object back to its beginning position.
5.
Click the Play button to see how the object changes its speed as it
moves over time.