I’m wondering if there’s any example OF project or interest about “faked” longtime exposure images/video effects.
I mean the kind of effect that the Lichtfaktor crew uses at their events: http://www.lichtfaktor.eu/
At ars electronica 08, they had a setup with a digital video camera, laptop and a digital video projector in the night. You could literally write with light sources like LEDs in front of the camera while the projector illuminated a wall with all the movements and showed a very nice light effect, as if there had been many long time exposures after one another. But in fact, they used just the video stream of a SDTV camera and processed it live inside the laptop which then fed the projector.
It’s a little difficult to describe, but you can see the setup shortly around 1:00 in this video:
Back then, I talked to the programmer of lichtfaktor in Linz, but he refuses to make his light writing software open source. But I guess it probably wouldn’t take long to build similar and maybe even superior (because it could be open software with OF. Right? Anyone interested or already begun?
p.s. to be a little more clear: the many still images you see at the lichtfaktor webpages don’t need the software I’m talking about (there are also many stop motion videos, made from still images). I only mean the live video imitation of this longtime exposure effect of moving light sources.