Adobe 25510629 - After Effects CS3 Professional, Руководство пользователя

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Quick-start session
■
Add virtual shadows or reflections. (See “Adding shadows and reflections”
on page 111 .)
■
Correct color. (See “Correcting colors” on page 108 .)
■
Defocus the sources. (See “Defocusing a source” on page 119 .)
■
Adjust the audio volume of the clips. (See “Adjusting the volume of a video clip”
on page 107 .)
10.
Export the finished movie. (See “Saving the finished video” on page 119 .)
Tutorial
The following is a step-by-step example of a simple NTSC session that uses NTSC sample
files included with Ultra.
1.
Start Ultra.
2.
Drag a background from the Animations folder on the Backgrounds tab onto the
Background thumbnail.
3.
On the Browse tab, double-click the NTSC Sample Clips folder to open it. Drag the
Hands Apart (Wedding) clip onto the Input Clip thumbnail.
4.
Click the Set Key button on the Keyer tab. If the controls on the Keyer tab are disabled,
click Input Clip thumbnail.
5.
Drag the slider under the Output Preview Monitor to the time of 1 seconds (00:00:01.00),
or enter this timecode in the timecode text box. A video frame showing two hands appears
on the Output Preview Monitor.
6.
On the Input tab, click the Set button to the right of the In Point text box. This makes it
so that the first frame to appear in the movie is the frame at the time of 1 second in the
input clip.
7.
Move the Transparency slider on the Keyer tab to the left to 0.350, or type that value in
the adjacent text box. The two hands become opaque.
NO
TE
The first frame in this clip shows only the greenscreen background. The method
described in this tutorial only works for clips that have at least one frame that is a shot
of only the background color screen.
NO
TE
The Hands Apart clip has a well-lit, even background that can be keyed out well with
only this one adjustment. Some backgrounds require more manual fine-tuning to
achieve a clean, convincing key. For more information, see
“Fine-tuning the Keyer
settings” on page 84 .