to create a feedback loop in jitter, there's a little trick, like in msp you need [send~] and [receive~]
I just opened my CPU version and without doubt it's way better (but way slower too)
so for the feedback loop you need [jit.xfade @in2_name x @out-name x].
the xfade message will control the feedback amount.
you connect your video input to [jit.xfade] in1 then its output to the video processing (in this situation [jit.rota @boundmode 4] and [jit.brcosa]) and the processing output back to [jit.xfade] in2.
a [jit.brcosa] on the output is useful to bring back the luminosity/contrast the feedback loop removes.
if you don't get it, don't hesitate to ask questions, if you find any nice results, show us.
Kudos on the awesome patch. I have been interested in video feedback for quite some time now, and am finally trying to create 'digital feedback' as opposed to analog using Jitter. I'm just curious - did you manipulate the parameters (zoom, position displacement, etc.) in real time, or were they set to static numbers? I'm a Jitter newbie, so any tips you can provide are most appreciated. Keep up the good work!
Thanks... I have copied the attribute buttons for the jit.rota object from the jit.rota help file, but I am unsure how to set things up so that these values can be manipulated in real time - right now I am only able to click and drag on the numbers, or enter them manually. I have a midi controller (M Audio Axiom 61) - is there a way to map knobs to control these parameters in real time? Or are there other objects in Max that are well-suited for this purpose? (I'm sure there are).