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Desc:Warning: may cause seasickness
Category:Arts, Science & Technology
Tags:Psychedelic, video manipulation, slit scan, video tricks
Submitted:Spike Jonez
Date:07/29/12
Views:2204
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Comment count is 19
Old_Zircon
It's been way to many years since I've taken any LSD.
Old_Zircon
One of the sample scripts that comes with Processing (processing.org) does this.

misterbuns
processing is awesome.

Old_Zircon
Yeah, it's gotten WAY deeper since I looked at it a couple of years ago.

Old_Zircon
This really makes me want to project live slit-scan video of the audience behind the band next time I play out.

Old_Zircon
Ok, the sample code that comes with Processing is pretty weak, but a much better one is here:

https://docs.google.com/document/d/1L3NrdtltUWl9xfP2zv85w_xq_W TyXipOJGpIqMlo06M/edit?pli=1

I jsut tried it and it works really well. If you're running Windows, you'll need to install v1.0.1 (NOT the earlier or later versions!) of WinVDIG from here: http://www.eden.net.nz/7/20071008/

Old_Zircon
Don't expect it to look this good in real time, though - you need to shoot at pretty high speeds to get it to look like this.

misterbuns
Alas I am but a tourist in that world. I've been wanting to incorporate Processing into a workflow for a project but I havent had a timetable that could accommodate the learning curve.

I have some friends who use it, and I am blown away by it.

Old_Zircon
Matbe try PD/GEM? It's comparably powerful but since it's a Miller Puckett project it has a graphical "flowchart" type interface familiar from Max/MSP. I've got more experience with CSound than with Max/MSP, so Processing makes more sense to me personally (not that I'm very good at any of it), but they're both fantastic.

The Townleybomb
I got all the way through this without puking!
theSnake
Is this a scanline camera or something different
Old_Zircon
It's a post-processing simulation of traditional slit-scan motion photography (i.e. the ending of 2001).

The source material is just standard video, if you follow my link above to the Processing website there's sample code to do it in real time from your webcam, and the Youtube description for this video has an Apple app store link for a basic, offline slit-scan program that costs . I think there's an iPhone app, too. Bein able to do this in real time is fantastic.

Old_Zircon
It's how they did the Dr. Who time tunnel, too.

Spike Jonez
I thought that was just video feedback of a monitor for the camera. It was slit scan, too?

Old_Zircon
There were a bunch of variants, the old ones used video feedback but in '73 they did the slit-scan version, which is the one I used to see most often when I watched reruns as a kid, and also corresponds to the Tom Baker period, which was always my favorite.


http://www.h2g2.com/approved_entry/A907544

baleen
Fantastic... I would love to use this effect in a film.
Old_Zircon
I wonder, if you had a machine capable of processing at 200-300 fps in real time, if you could get results this smooth with live video.

Spaceman Africa
The unsettling Basinski-like music goes well with this
MrBuddy
This wouldn't be psychedelic without it.

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