Matte workflow

[Joseph Owens]

Nope.

jPo

You mean “Old Ben”? Ben Kenobi?

[Andi Winter]

hmmm, why no? just add a node in the end and it will affect both!

[Dan Davis]

Well that’s the rub…add it to what.

Thanks.
Danny

[Marc Fisher]

add the new node between your last node that you have, and the output tab (the thing that looks like a PONG paddle on the right side).

[Christopher Adams]

Cant you bring in the source then the matte channel? then separately grade them? then merge them at the end with a node effecting both?

Bring in the material then use the same matte you use for your comp to do an inside / outside key then once recombined down stream do a final overall correction for both.

CJ

[Joseph Owens]

Okay, to clarify….

Is this approach trying to grade inside/outside a single source clip, using a matte shape to define the secondary qualification? If yes, then the answer is yes, by simply adding a node downstream of the matte qualified correction. This is elementary grading practice.

If, however, the aim is to simultaneously grade two source clips that have been “composited” by threading a matte-qualification (for example a bg/fg greenscreen combination)between video layers, then I am not aware of how to do that other than to add a serial node as before, but clone it and add it to the complementary source clip in question.

Mattes are always added to the media pool specifically as mattes and are attached to its specific “mother” source clip — and selected with a right click in the node tree.

jPo

You mean “Old Ben”? Ben Kenobi?

[Dan Davis]

The aim is to simultaneously grade two source clips that have been composited via an external matte.

Think I’m there now.

Thanks for the help.

Danny.

[Christopher Adams]

Ahh i see. Yeah might not work the way I was thinking then.. Can you do it via multiple tracks with the composite modes and mattes?
Haven’t tried tried. just a thought.
CJ