Anyone who has gone to the movies in the last 20 years are familiar with the visual effects that are being used in the film making industry. The most simple definition of visual effects is that they are the effects that are using computer graphics on a shot that was filmed on top of a green screen. These affects are imagery or other effects that are added to increase the validity of a live action shot. There are many visual effects that can bee used, from the addition of characters to a shot to putting the characters in a different place all together. These effects create computer created environments which look realistic, and they are used because these shots would either be too dangerous to filmed on the spot, or because the facts are creations of fantasy and must be completely created using animation or computer programs.
Because of the expense of visual effects they used to be a signature of only the big name movie productions. With the advent of faster computers and better programs these visual affects have become something even the smaller production houses can use. With a good group of visual effects and artists, a person can add visual effects into anything. John Textor, the executive chairman of Pulse, has worked to add characters who have died into productions. Pulse, along with the company Digital Domain, is behind bringing back slain rapper Tupac Shakur at the Coachella music festival in 2012. He also is behind the process of bringing back the late Michael Jackson to the stage. This effect involved projecting an image on glass or plastic at a 45-degree angle, which then brings that image fuller into the viewer’s field of view which is closer to the real way our eyes see things. In this way, John Textor‘s Pulse and Digital Domain actually brought back the singer to do more than just stand there as Tupac had. Instead, this new hologram now danced, moonwalked, and even addressed the audience.