But that's just the image source—how did AV Concepts, the firm behind the display, actually project Pac on stage? It calls him a hologram, but hologram he is not: it's a fancy reflection technique called "Pepper's Ghost," named after a midth century optics researcher John Pepper.
The trick is based on the fact that glass is both transparent and reflective, meaning it's possible, with the right angles, to bounce a picture off of it that appears to be floating in air. But it's not—it's just stuck on an expensive screen. Why this n—- always give himself names that sound like venereal disease symptoms? Is it an inventive, entertaining technological display or simply another case of corpse-sploitation for the sake of empty nostalgia?
Coachella Sunday night: Dr. Dre and Snoop Dogg bring along a lot of friends…and a Tupac hologram. How was the image projected? San Diego-based AV Concepts staged the hologram's performance using a variation of an old effect called Pepper's Ghost. The technique was first used in an dramatization of Charles Dickens' The Haunted Man and the Ghost's Bargain , employing an angled piece of glass to reflect a "ghostly" image of an offstage actor.
In Tupac's case, the computer generated image was projected onto a highly reflective piece of Mylar stretched on a clear frame. The company has also used the technology to resurrect dead CEOs for corporate events. Whose idea was this? It was the brainchild of Dr. Dre, who contacted AV Concepts four months ago with the idea. Originally, recently-deceased rapper Nate Dogg was supposed to appear via hologram as well, but the idea was scrapped at the last minute. What's next? Tupac will make at least one more appearance at the festival next weekend.
Dre and Snoop Dogg reportedly in talks to go on the road with the hologram. Although the perception was of a 3D likeness of Shakur, the image was actually a 2D image. Shakur's likeness was projected onto an angled piece of glass on ground, which in turn projected the image onto a Mylar screen on stage. The Musion Eyeliner system they're talking about is a product of Dimensional Studios and "is an open system that uses a specially developed foil in reflecting images from high-definition video projectors, making it possible to show holograms of variable sizes and distinct clarity created using a proprietary software.
The entire system consists of a truss box and a stage, where the virtual picture appears. Shakur's hologram will make one more appearance on Sunday, the closing night of Coachella, but it may not be the last we see of the holographic rapper.
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