Classroom in a book

288
LESSON 15 Exploring Compositing Techniques
6
In the Effects panel, choose Video Effects > Stylize, and drag the Mosaic effect 
to the Video 2 clip (and not on the face matte clip you just added). Set the 
horizontal and vertical blocks’ values to 50. This makes the clip in Video 2 a 
mosaic. Now you need to use the Track Matte Key effect to make the mosaic 
appear over only the face as it moves.
7
Locate the Track Matte Key effect in Video Effects > Keying, and apply it to the 
clip in Video 2. This is the same clip to which you applied the Mosaic effect.
8
Set Matte to Video 3 and Composite Using to Matte Alpha.
9
Play the sequence.
The Mosaic effect is now on the hero’s face only.
#
 Note:
You can also 
use this technique to 
highlight, rather than 
obscure, a person or 
object in motion. To 
highlight with a track 
matte, simply change 
the effect on the matted 
clip from Mosaic to a 
tinted color, a brighter 
color, or even black 
and white.

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ptg
ADOBE PREMIERE PRO CS5 CLASSROOM IN A BOOK
289
Review questions
1
Explain how to copy all the effects from one clip to another.
2
How do you create a logo with beveled edges and a glow that grows and then shrinks?
3
What’s the preferred effect for compositing blue- or green-screen videos?
4
Why is it helpful to light a green screen evenly when shooting a scene?
5
How is using the blend modes different from just adjusting the Opacity setting’s 
percentage?
6
Describe what a track matte is.
Review answers
1
Select the clip from which you want to copy the attributes, and choose Edit > Copy. 
Then select the clip or clips to which you want to copy the attributes, and choose 
Edit > Paste Attributes.