Game Development Reference
In-Depth Information
Figure 10.14 The fi nal results of
the Difference Matte effect.
The Extract Effect
Before tackling the Extract effect, you might want to brush
up on the Levels effect, covered in Chapter 6. The Extract effect
works best (works only?) with footage that has extreme light val-
ues or extreme dark values to key out. If the luminance of your
subject is similar to the luminance of your background, you'll
have a diffi cult time getting the Extract effect to work well. If
you'd like to follow along, you can open the Extract.aep project in
the Chapter 10 folder.
So, we have here a photo of some fi reworks, courtesy of Angela
McInroe (Fig. 10.15).
Figure 10.15 The fi reworks comp
in the Extract.aep project.
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