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An interactive video installation prototype developed in Processing (www.processing.org) programming environment and based on light painting photographic technique.

The spectator uses a flashlight to illuminate parts of a dark screen and these parts are then illuminated by a video projection in that area. If the area is no longer illuminated, the projection gradually fades away.

For more about marginalia project and this prototype, visit marginalia-project.blogspot.com.

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  • MrBeaver 1 year ago
    Why didnt you simply painted the background with phosphoric paint and used high-density led flashlights.
  • André Mintz 1 year ago
    of course we didn't actually think of that, but I can already think of a problem, which is that, this way, there would be no video shown at the flashlight's trail. Besides, the digital control of the interaction allows different responses from the work, such as different ways to render the trail's vanishing behavior, etc. which wouldn't be possible in your alternative solution.
    thanks for your insight!
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  • MrBeaver 1 year ago
    oh, I didnt notice there was a video in the trail =)
    the only thing that bothers me is the speed of your software. Can it handle high speed movements of the flashlight, or did you simply moved slow in this video only.
  • André Mintz 1 year ago
    that's really a software issue. one of the factors was the blur effect that we use to make the image smoother. we've recently presented this same project without the blur effect, just turning the projector slightly out of focus (a lot smarter). eventhough, we still want it to be faster. we're working on transposing the project to another platform.
    thanks again!
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  • luca caridà 6 months ago
    really impressive. I visited your blog and saw your works. Nice jobs guys! I would be curious to learn something from you studying the code!
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