films in 3D involves using two cameras mounted so that their lenses are about as far apart from each other as the average pair of human eyes, recording two separate images for both the left eye and the right eye. In principle, two normal 2D cameras could be put side-to-side but this is problematic in many ways. The only real option is to invest in new stereoscopic cameras. Moreover, some cinematographic tricks that are simple with a 2D camera become impossible when filming in 3D. This means those otherwise cheap tricks need to be replaced by expensive CGI. for example Oz the Great and Powerful. In 2008, Journey to the Center of the Earth became the first live-action feature film to be shot with the earliest Fusion Camera System released in Digital 3D. This film was later followed with several other films shot in Live-action. The 2009 release of Avatar was shot in a 3D process that is based on how the human eye looks at an image. It was an improvement to a currently existing 3D camera system. Many 3D camera rigs still in use simply pair two cameras side by side, while newer rigs are paired with a beam splitter or both camera lens built into one unit. Digital Cinema cameras are not really required for 3D but are the predominant medium 99% of what is photographed. Film options include IMAX 3D and Cine 160. Animation CGI animated films can be rendered as stereoscopic 3D version by using two virtual cameras. Because the entire movie is basically a 3D model, it only takes twice the rendering time and a little effort to properly set up stereoscopic views. In 2004 The Polar Express was the first stereoscopic 3D computer animated feature film. In November 2005, Walt Disney Studio Entertainment released Chicken Little in digital 3D format. The first 3D feature by DreamWorks Animation Monsters vs Aliens followed in 2009 and used a new digital rendering process called InTru3D which is a process developed by Intel to create more realistic 3D images despite the fact that they are animated. InTru3D is not a way that films are exhibited in theaters in 3D, the films created in this process are seen in either RealD 3D or IMAX 3D. Video games In June 1986, Sega released the Sega Master System, part of the third generation of gaming consoles. The system had a