Sunday, 4 September 2011

The Mind's Eye



David Hockney “draws” with images from nine cameras. Credit: David Hockney
One of your basic contentions, I say to the British artist David Hockney, is that there is always more to be seen, everywhere, all the time. "Yes," he replies emphatically. "There's a lot more to be seen." We are sitting in his spacious house in the quiet Yorkshire seaside town of Bridlington. In front of us is a novel medium, a fresh variety of moving image—a completely new way of looking at the world—that Hockney has been working on for the last couple of years.
We are watching 18 screens showing high-definition images captured by nine cameras. Each camera was set at a different angle, and many were set at different exposures. In some cases, the images were filmed a few seconds apart, so the viewer is looking, simultaneously, at two different points in time. The result is a moving collage, a sight that has never quite been seen before. But what the cameras are pointing at is so ordinary that most of us would drive past it with scarcely a glance.
At the moment, the 18 screens are showing a slow progression along a country road. We are looking at grasses, wildflowers, and plants at very close quarters and from slightly varying points of view. The nine screens on the right show, at a time delay, the images just seen on the left. The effect is a little like a medieval tapestry, or Jan van Eyck's 15th-century painting of Paradise, but also somehow new. "A lot of people who were standing in the middle of the Garden of Eden wouldn't know they were there," Hockney says.
The multiple moving images have some properties entirely different from those of a projected film. A single screen directs your attention; you look where the camera was pointed. With multiple screens, you choose where to look. And the closer you move to each high-definition image, the more you see.
"Norman said this was a 21st-century version of ­Dürer's [Large] Piece of Turf," Hockney says. By "Norman" he means Norman ­Rosenthal, the former exhibitions secretary of the Royal Academy in London and one of the doyens of the international contemporary-­art world. The comparison is an intriguing one. Albrecht Dürer's 1503 drawing (Das große Rasenstück in German) was a work of great originality.
Dürer used the media of the time—watercolor, pen, ink—to do something unprecedented: depict with great precision a little slice of wild, chaotic nature. He revealed what was always there but had never before been seen with such clarity. Hockney, in 2011, is doing the same job, using the tools of the moment: high-definition cameras and screens, computer software. Of course Hockney, too, is a painter—indeed, his grid of 18 flat screens, run by seven Mac Pro computers, looks much like one of his multipanel oil paintings. Except, of course, that every panel moves.
Hockney's technology assistant, Jonathan Wilkinson, explains how this 21st-century medium works. "We use nine Canon 5D Mark II cameras on a rig we've made, mounted on a vehicle—either on the boot or on the side. Those are connected to nine monitors. I set it up initially, taking instructions from David, to block it in. At that point we decide the focal length and exposure of each camera. There are motorized heads with which we can pan and tilt, once we've got going, while we're moving along. There's a remote system he can operate from the car."
Hockney compares that process to drawing. For him, drawing is not merely a matter of making lines with a tool; it's fundamentally about constructing a two-dimensional image of three-dimensional space. He argues that the same is true of putting photographic images together in a collage, and also of altering a single photograph. Hockney complains that today's media are full of badly drawn (that is, Photoshopped) photographs...
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Martin Gayford @'technology review'

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