Ever spell out words in the air with your finger? Now you can do
it with an iPad. The result is spooky 3D letters that seem to
hover in midair. Casper would love it. We've seen iPads used to
create touch-screen art, but this goes a step beyond. The folks
at communications agency Dentsu London and design consultancy
Berg teamed up to produce an series of otherworldly animations
seen in the vid below. Dentsu says it's part of its Making
Future Magic project. The photographic technique is a kind of
stop-frame animation. Hand-held iPads are imaged moving through
space with long exposure times, creating a ghostly message in
the air. 3D models of letters and objects are first rendered in
cross sections in a kind of "virtual CAT scan," as Berg's Jack
Schulze explains in the video. Then they're played back as
movies on the iPad screen while it moves through the air. These
are imaged in low-light environments as long-exposure photos of
3 to 6 seconds, and each pic is one of many frames in the
animation sequence. The t