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Table Of Contents
How the CBlend Node Works
The Front pipe of the CBlend node is designed to result in a colour image. This is represented visually by a
red box at the right of the Front pipe. You can place any node on the Front pipe that results in a colour
image. These include the Colour Curves, Colour Correct, RGB Blur, Degrain, and Regrain nodes.
The Matte pipe is designed to result in a matte. This is represented by a blue box at the right of the pipe.
You can add any node that results in a matte to the Matte pipe, including the MasterK, 2D Histogram,
GMask, Edge and Degrain nodes.
The Front and Matte pipes of the CBlend node constitute one layer.
(a) The two pipes constitute one layer (b) Front pipe (c) Matte pipe (d) Red box of Front pipe (e) Blue box of Matte
pipe
NOTE The Degrain node results in a colour image; however, it is often useful to place it on the Matte pipe before
the MasterK node (which uses a colour image for its input). For this purpose, it can be placed on the Matte pipe.
The two pipes together, along with a back component, constitute one layer. For the first (bottom) layer, the
CBlend node uses the source input image for the back component. For example, in the CBlend node on the
Front branch of the default pipeline, the Front clip is used for the back component.
Matte Blend Node
Use the MBlend node to set up the matte operations you want to perform on a clip.
Use the Front pipe of a layer to define the matte, and use the Matte pipe to isolate an area where you want
the matte to be applied. For example, use the Matte pipe to isolate an area of the key-in clip and apply a
different matte to that area.
NOTE When using the Matte pipe for this purpose, you would create a second layer and place the overall matte
in the bottom layer and the second, localized matte in the upper layer. This is because layers are processed from
the bottom up.
When there are no nodes on the Matte pipe, the matte is applied to the entire image.
As with the CBlend node, you can blend the front and back images for each layer and create several layers
of mattes.
How the MBlend Node Works
The Front and Matte pipes of the MBlend node are both designed to result in a matte. This is represented
visually by a blue box at the right of the Front and Matte pipes. You can place any node on the Front and
Matte pipes that results in a matte, including the MasterK, 2D Histogram, GMask, Edge and Degrain nodes.
Using Blend Nodes | 681