Over
Function
This is the main compositing node of Shake. This function places one image
over another, according to the matte of the foreground image. Images are
assumed to be pre-multiplied. You can use a MMult
on an input node if it is not pre-multiplied, or you can toggle the preMultiply
parameter to 1.
Parameters
|
Type
|
Defaults
|
Function
|
clipMode |
int
|
1 |
Toggles between foreground (0) and background
resolution (1) |
preMultiply |
int
|
0 |
When this is on (1), the foreground image
is multiplied by its alpha mask. If it is off (0), it is assumed the
foreground image is pre-multiplied. |
addMattes |
int
|
0 |
When this is toggled on (1), the mattes
are added together for the composite. |
Synopsis
image Over(
image Foreground,
image Background,
int clipMode,
int preMultiply,
int addMattes
);
Script
image = Over(
Foreground,
Background,
clipMode,
preMultiply,
addMattes
);
Command Line
shake -over image clipMode preMult
See Also
Under, Screen,
Inside, Atop
|