• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

Chapter 16. Production Bundle Techniques > Using the Simple Choker

Using the Simple Choker

A typical problem with mattes is that they can be a bit too large, revealing an unpleasant edge around the keyed subject. The solution is to choke the matte, which shrinks the matte slightly. You can use the Simple Choker effect to either choke or spread a matte to make a cleaner composite.

To use the Simple Choker:

1.
Select the layer containing the matte (Figure 16.29).

Figure 16.29. Select the layer containing the matte.


2.
Choose Effect > Matte Tools > Simple Choker (Figure 16.30).

Figure 16.30. Choose Effect > Matte Tools > Simple Choker.


The Simple Choker effect appears selected in the Effect Controls window (Figure 16.31).

Figure 16.31. The Simple Choker effect appears selected in the Effect Controls window.


3.
Choose an option from the View pull-down menu (Figure 16.32):

Final Output lets you see the composited image in the Composition window.

Matte lets you see the matte in the Composition window.

Figure 16.32. Choose an option from the View pull-down menu.


4.
Set a value for Choke Matte to shrink or spread the matte (Figure 16.33).

Figure 16.33. Negative values for Choke Matte shrink the matte, positive values spread it.


Negative values spread the matte; positive values choke, or shrink, the matte.

5.
To see the final composited image in the Composition window, set the View option to Final Output.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint