How to make classical video feedback loop ?

zapała | telematic.Lab 's icon

Hi,
How to make classical video feedback loop (jitter, gen ?) ? Typical one, like in oldschool '80 video clips, like mirror in mirror, or camera watching the screen. Strange, I can not find anything in web ....

Jean-Francois Charles's icon

The best good old tutorial on this topic was made by Peter Elsea: feedback.pdf on peterelsea.com/maxtutorials.html