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A Luma Matte is based on the dark and light pixels which used to create a transparency mask for the original.
So all purely black pixels will be 100% transparent and
Pure White pixels 100% opaque you can invert this matte for the opposite effect.
( ,
Fri 23 Sep 2011, 14:48,
archived)
So all purely black pixels will be 100% transparent and
Pure White pixels 100% opaque you can invert this matte for the opposite effect.
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While that sounds like a fantastic idea, I'd rather do it with a chisel than on a computer.
( ,
Fri 23 Sep 2011, 14:50,
archived)