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"Difference" blending mode

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Eric Chard"Difference" blending mode
by on Dec 8, 2010 at 1:15:39 am

Is there a way to get:

When two layers are identical, everywhere they are identical the alpha drops to zero (100% transparency)?

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David JohnsonRe: "Difference" blending mode
by on Dec 8, 2010 at 1:37:48 am

I'm not sure if I've ever tried this and I'm not in AE at the moment, but maybe using difference mode on the top layer, which will turn everything identical black, then precomposing those layers and applying an UnMult filter to the precomp, which will turn everything black transparent. If it doesn't work, my apologies ... running on very little sleep today. ;~)


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Michael SzalapskiRe: "Difference" blending mode
by on Dec 8, 2010 at 7:10:58 pm

You might look into the Difference Matte effect.

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David JohnsonRe: "Difference" blending mode
by on Dec 11, 2010 at 5:06:58 pm

Doh! Good catch, Michael. Perhaps I shouldn't try to answer questions when my brain is all mushy. lol


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