I made a little time domain iir-filter example for images using proce55ing (link below). though I know nothing about GEM, if it can operate on individual pixels then it shouldn't be too hard to store previous values in a buffer?? in this example there are 3-taps (so 3 buffers). sorry if this is no help at all.
Matt
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----- Original Message ----- From: "Ian Smith-Heisters" heisters@0x09.com To: type_non@yahoo.com Cc: pd-list@iem.at Sent: Tuesday, April 06, 2004 1:19 PM Subject: RE: Video Feedback (was [PD] feedback in gem, any tips)
I've only seen video feedback done in analog. Take a camera, hook it to a
TV, so the TV shows what you're
filming, and then film the TV screen. I would guess that the delays on
processing digital data on a computer
would make it impossible to do on a computer, but I may be very, very
wrong. Try hooking any object's output to
its input and you've essentially got a feedback loop. I don't think you
can do this in GEM though.
-Ian
-------- Original Message -------- Subject: Re: [PD] feedback in gem, any tips From: "=?iso-8859-1?q?type=5Fnon?=" type_non@yahoo.com Date: Tue, April 06, 2004 3:56 am To: PD-list@iem.at
I didn't saw that graphic... but i'm very interested in this kind of "visual feedback" patches too. So if someone has more info about this, it would be cool to know how to do that.
Nicholas Ward niward@cs.tcd.ie wrote: Hi, Im new to this gem and pd stuff and loving it! I saw a graphic that someone had made using gem that used "visual feedback". Just wondering
if anyone had a patch that could show what this technique means. Its kinda like a shadow of an object remains as it moves through the space. Thanks nicky