User Manual

Table Of Contents
Inspector
Matte Tab
The Matte tab combines and modifies Alpha or color channels from an image in the foreground
input with the background image.
Combine
Use this menu to select which operation is applied. The default is set to None for no operation.
None: This causes the foreground image to be ignored.
Combine Red: This combines the foreground red channel to the
background Alpha channel.
Combine Green: This combines the foreground green channel to the
background Alpha channel.
Combine Blue: This combines the foreground blue channel with the
background Alpha channel.
Combine Alpha: This combines the foreground Alpha channel with the
background Alpha channel.
Solid: This causes the background Alpha channel to become completely opaque.
Clear: This causes the background Alpha channel to become completely transparent.
Combine Operation
Use this menu to select the method used to combine the foreground channel with the
background.
Copy: This copies the foreground source over the background Alpha, overwriting any
existing Alpha in the background.
Add: This adds the foreground source to the background Alpha.
Subtract: This subtracts the foreground source from the background Alpha.
Inverse Subtract: This subtracts the background Alpha from the foreground source.
Chapter – 98 Matte Nodes 2167