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Re: FEEDBACK CODE QUESTION
Ior Bock wrote:
> 1.) Do you know how the golden mean, phi comes into play with video
> feedback, especially when we see TV feedback
> displaying the spiral / nautilus shell form ?
> 2.) Is the feedback occuring within the mechanical circuity of the
> feedback system a kind of resonance, and if so what exactly is it, what
> is 'resonanting' and how?
If the feedback consists of a video camera pointed at a television (or a
webcam pointed at its own preview window on a computer screen) the whole
system of video camera, television, and light waves can be said to be
the thing that is resonating.
> 3.) I'm hoping to emulate video feedback with software and am trying to
> figure out basic algorithms that will let me do this,
> I recently posted the below detailed query to a Visual Basic programmers
> forum, but it seems like there was little 'feedback'
> on this, can you offer any insights? Are there any code snippets
> floating about that will let me do this that you may know of?
> (Please see below)
Digital video feedback usually involves getting access to the
back-buffer, processing it somehow, and then blitting the processed
image to the front-buffer. Google 'rotozoom', also check out
Note that what makes analog video feedback different to digital video
feedback is the kind of things it's very difficult to emulate digitally
- namely the specific color response characteristics and geometry of the
video camera and television.
You have actually played with a video camera and television, right? Or
even a webcam and your computer monitor?
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