Light painting is a rite of passage in photography these days, like landscapes, macro, or starting a shoot with your lens cap on. In fact, it has become such a trend in the photography world that it has already become jaded and stale to a large extent. That's not to say there aren't still fantastic light painted images, but rather that it has become so easy to do that there's an abundance of very similar results. A natural consequence of this is people trying to forge a derivation that's fresh and unique, which is exactly what FilmSpektakel has done.
The description of holopainting is best taken from the pioneers themselves:
Holopainting is a combination of the light painting, stop motion, and hyperlapse technique to create three-dimensional light paintings. We didn't want to use computer-generated images, so we built a giant 3D scanner out of 24 Raspberry Pis with their webcams. These cameras took photos from 24 different perspectives of the person in the middle with a delay of 83 milliseconds, so the movement of the person also was recorded.
Once this very simple task of setting up is complete, it only take a few days to edit the images to be used -- bonus! If you're not starting to see why this technique isn't commonplace already, I'm not sure how to make it any clearer, but I'll try. The rig is similar to the Matrix's famous "bullet-time" scene, but with delay added to create stop-motion style movement; rather than a still scene in which you can rotate around, you are rotating around a timelapse of a light-painted subject. Before you grab your camera, tripod, and a torch to scuttle off in to the garden, here's the equipment used list:
- 3D Scanner made from 24 Raspberry Pi and 24 webcams
- 48-port swtch
- 375 meters of LAN cable
- Canon 6D
- Sachtler Ace M
...and don't forget to throw in some coding for good measure.
I'd be interested to see where this project can go next and whether better cameras can be used and higher quality holograms created. It feels as if this is the first step toward some classic sci-fi "technology" we've all seen on TV, and I for one can't wait to be arguing with people on the internet via hologram.