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Cruisin 3 by Abyss explained

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Published on Apr 9, 2013

This is a demo by Abyss released on March 2013 at the Revision party.
I AM NOT CREATOR OF THIS DEMO.
This video was done to explain how it works, to see the demo running on real hardware, go there : http://www.youtube.com/watch?v=er8CoA...

It runs on a Playstation 2 connected to two waveform monitors.

Basically, the idea behind it is very simple : it uses a special kind/setting of oscilloscopes named "waveform monitor", which is used a lot in video production to check a video luminosity (luma) levels. For each line of the original picture, the electron beam of the oscilloscope draws a line of the pixels' luminosity. So if you want to obtain a picture on the waveform monitor, you need to pay attention at the luminosity and horizontal position of the pixels, the vertical position is irrelevant. This demo also makes a clever use of analog glitches of waveform monitors that are not correctly simulated in this video, and generate grayscales on the waveform by duplicating pixels of the same luminosity on the original video.

The second part is a bit trickier, high luma pixels are used on the video to make an animation, and low luma pixels are used to show another animation on the bottom of the waveform monitor. By modifiying the setup of the oscilloscope to zoom on the lower part of the waveform, you can create the illusion of a second screen !

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