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Light Painting With iPads

08/17/11  |  Posted by Niki Smith  |  Posted in Digital Creativity

Making Future Magic: iPad light painting from Dentsu London on Vimeo. An amazing technique using an iPad to combine long exposure photography, 3D modeling, and stop motion animation. Check out the results in the video above! First we create software models of three-dimensional typography, objects and animations. We render cross sections of these models, like a virtual CAT scan, making a series of outlines of slices of each form. We play these back on the surface of the iPad as movies, and drag the iPad through the air to extrude shapes captured in long exposure photographs. Each 3D form is itself a single frame of a 3D animation, so each long exposure still is only a single image in a composite stop frame animation. - BERG and Dentsu London Other artists have explored the possibilities too. Source Data for Photography/12:31 from Croix Gagnon on Vimeo. The above video of a cadaver was played while the screen was lifted through the air. The resulting long-exposure photographs are eerie. In 1993, a convicted murderer was executed. His body was given to science, segmented, and photographed for medical research. In 2011, we used photography to put it back together. This animation represents the entire data set (1,871 slices) of the male cadaver from the Visible Human Project. The animation was played fullscreen on a computer, which was moved around by an assistant while being photographed in a dark environment. The resulting images are long-exposure "light paintings" of the entire cadaver. Variations in the movement of the computer during each exposure created differences in the shape of the body throughout the series. - Project 12:31

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