The sequence of choking and spreading
occurs in two stages, each with its own set of identical controls.
Typically, stage two does the opposite of stage one. After a specified
number of back-and-forth adjustments (which are handled automatically
by Matte Choker), the hole is filled and the matte shape is preserved.
Select the layer, and choose Effect >
Matte > Matte Choker.
Set stage-one controls (the first three properties) to
spread the matte as far as possible without altering its shape,
as follows:
Geometric Softness
Specifies (in pixels) the largest spread or choke.
Choke
Sets the amount of choke. Negative values spread the
matte; positive values choke it.
Gray Level Softness
Specifies how soft to make the edges of the matte. At
0%, the matte edges contain only fully opaque and fully transparent
values. At 100%, the matte edges have a full range of gray values
but may appear blurred.
Set stage-two controls (the next three properties) to
choke the matte by the same amount as that by which you spread it
in stage one.
(Optional) Use the Iterations property to specify how
many times After Effects repeats the spread-and-choke sequence.
You may need to try a few different settings so that the sequence
is repeated as many times as necessary to close any unwanted holes.
Comments are no longer accepted for After Effects CS3. After Effects CS4 is the current version. To
discuss After Effects CS3, please use the Adobe forum.
Comments
Comments are no longer accepted for After Effects CS3. After Effects CS4 is the current version. To discuss After Effects CS3, please use the Adobe forum.