Feedback effect ?

[Todd Kopriva]

One of the common terms for this recursive sort of image is ‘Droste’ (because one of the first famous examples was in an advertisement for Droste cocoa).

Here’s an After Effects Community Help search for Droste that pulls up some useful tutorials and a Pixel Bender plug-in.

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Todd Kopriva, Adobe Systems Incorporated
putting the ‘T’ back in ‘RTFM’ : After Effects Help on the Web
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[Emmanuel Gobert]

Thank you for your answer.
I knew about this drost effect, but, as in my case the images don’t need to “blend”, i wonder if I could find a simply way to achieve the effect, maybe with an expression ?