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Automating 2 Masks on one image

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Brent GriffinAutomating 2 Masks on one image
by on Aug 25, 2010 at 2:26:29 am


I've got to do someone playing a 'fake' guitar, the girl is standing there pretending to strum, and I need to put a 'felt' guitar in her hands.

Now there were tracking marks on her, so the movement of the guitar I could automate from trackers. Good. But there were none on her hands. I got her 'fret' hand tracked ok, but her strumming hand I can't, so i'm going to manually do it.

Problem being, i've done the mask on her 'fret' hand to let her fingers show through the frets by having the tracking info go to a null, then automating a solid layer with a mask on it and applying a 'trackmatte' to the guitar, but now I can't apply another trackmatte to another solid for the same guitar layer, can I? If so, I can't figure out how.

If that makes any sense, then any help would be appreciated.

Here's a pic that might help

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Dave LaRondeRe: Automating 2 Masks on one image
by on Aug 25, 2010 at 3:03:34 pm

You can do one of two things:

• Place a duplicate layer of the subject's right hand and roto the arm and fingers.
• Forget the duplicated layer, use a second mask on the same layer as the subject's left hand, and play with the mask modes, which should probably both be set to "Add".

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

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