CGI

CGI formally known as computer generated imagery is used for computer graphics, special effects in films, television programmes, advertisements etc. (which 3D computer graphics software can be used for). Computer generated imagery effects are more controllable than a more physical based process effect. If computer generated imagery was not involved then constructing miniatures for effects shots and hiring extras for crowd scenes would be needed. If computer imagery was involved then a single graphic artist can produce all of what would be needed without the use of actors, expensive set pieces, or props, which would be a better advantage to using computer imagery.

CGI was first used in film's 1973 however CGI was used since 1973 there had not been a full length CGI film since 1995 when Toy story was created. There would have been a full length CGI film earlier that had began in 1978 called the The Works, but it was never completed. When toy story was a success many other companies such as 20th Century Fox, Paramount pictures and Warner Bros, Columbia pictures, and many more including existing animation companies, such as The Walt Disney Company all went from traditional animation to CGI. This had quite an impact between 1995 and 2005 as the average effects budget wide-release feature film went for $5 million to $40 million.

When the early 2000's arrived CGI was used alot more for special effects.The technology became more advanced as CGI could now be possible to do to virtual stunt doubles which till that point was impossible. Even the Camera tracking software was refined to allow increasing complex visual effects developments that were previously impossible. CGI has been sucessful over the years that it has started to the present where it is still used.