Nice atmosphere but it would've been nicer with a story.

very nice I enjoyed watching this a lot- now can somebody explain how this was actually done?
Waving around laser-pointers in the air?

Loved it. So creative.

I think this is done by waving an LED around to trace out a shape in mid-air with the camera's exposure time set to roughly the time taken to trace out the shape once. So every time the camera captures an image it captures the entire outline that has been traced out using the bright LED. The quality of the animation created in this manner is greatly influenced by the person's ability to trace out the same shape over and over again consistently.

I found the shots where the camera is moving the down the hallway really impressive. In these shots they are able to capture the traced LED outlines (suggests the use of long exposure) and yet the background doesn't blur out when the camera moves (which would happen with a moving camera if your exposure was too long). They must have played around with the brightness of the leds, the amount of ambient light in the scene, the exposure time, and speed of movement until they had it nailed down. Or maybe I missing something. Obviously the people who made this video think the moving camera shots are impressive too since they play those shots several times back and forth.

Pro, the hallway doesn't blur because they don't move the camera while the shutter is open. They move the camera between shots.

I've been doing some "light doodle" stuff with some friends lately, and we've all been using the flash light from our cellphones. We're not as good as these guys, but we can still do some neat stuff

budzos - I considered that possibility but then thought it would take too much work to keep everyone coordinated. The animated LEDs look quite smooth if indeed everyone is being asked to hold their positions while the camera is being moved. You are probably right - that's probably how they did it.

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