
Visual Effects
Visual effects are the various processes by which imagery is created and/or manipulated outside the context of a live action shoot. Visual effects often involve the integration of live-action footage and computer generated imagery (CGI) in order to create environments which look realistic, but would be dangerous, costly, or simply impossible to capture on film. They have become increasingly common in big-budget films, and have also recently become accessible to the amateur filmmaker with the introduction of affordable animation and compositing software.
Development of the Visual Effects Industry
Ever since I was a young boy, I marvelled at how films entertained me with there visual effects. Films like Star Wars, ET and Raiders of the lost Ark were the leading films in Special effects. But these films were still based on physical equipment such as motion controlled cameras, matte painting, blue screens, models and pyrotechnics. The only use of computers was used to control the movement of film cameras.
Industrial Light & Magic (ILM) are probably the most influential, innovating and leading company responsible for the evolution of visual effects industry. It all began in 1975 when ILM founder George Lucas was about to embark on his Sci Fi epic Star Wars. He realised quickly that all special effects companies had disbanded in Hollywood and he had to establish his own effects company Industrial Light & Magic.
ILM consisted of a small team of college students who were a mix of artists and engineers. They have since go on to achieve 16 Oscars and 20 nominations. It was in 1979 when ILM established their use of computer generated imagery; they hired two computer graphics animators, Edwin Catmull and John Lasseter. They were responsible for the first fully animated CG feature; Toy Story. ILM constructed the first non linear film editing computer the Edit Droid which was later sold and named Avid Express, the leading editing software company in the world. In the Late 1980’s ILM supervisors John and Thomas Knoll created an image processing program as a summer project; today we know this summer project as Adobe Photoshop.
ILM are responsible for two major breakthroughs within the visual effects industry and in 1989 they created a fully three dimensional computer generated characters for the movies, The Abyss and Terminator 2 Judgement day. The year 1993 saw the arrival of living breathing characters with skin, muscles and textures, these were dinosaurs created for Steven Spielberg’s movie Jurassic Park. This was a breakthrough for the cinematic art of storytelling.
Second was in 2002, George Lucas shot Star Wars Episode 2 entirely on Digital Video, this was the first movie of its kind not to be filmed on celluloid. Film is a hundreds of times more expensive than digital video. In an interview with one of the Star Wars producers Rick McCallum, said they spent $16,000 on 220 hours on digital technology, and they would have spent about $1.8 million on 220 hours of film.
For the filmmaker, the most exciting element of digital technology is how easy it is to use. Most filmmakers have already switched to digital editing systems because they make it so much simpler to put a movie together. In the current process, filmmakers actually convert the film footage to a digital format for post-production and then back to film again for its theatrical release. The conversion process is costly, it ends up degrading the image quality somewhat, and it takes time.
Digital video doesn't have to go through this conversion process. As soon as they shoot digital footage, filmmakers can immediately play it back and start editing it. With film, they have to send the footage off for processing before they know what they have. A director might spend all day shooting only to discover the lighting was off and the footage is totally unusable. On the "Attack of the Clones" set, the crew could review the footage after every shot. They could shoot a scene in the morning and start editing it that afternoon.
Since these breakthroughs with digital technology it has been possible to acquire animation and modelling software at a relatively cheap cost allowing an amateur filmmaker to achieve professional techniques. By the late 90’s the arrival of companies such as Adobe, Macromedia and 3D modelling software such as 3D Studio Max and Maya offered enormous opportunities for everyone interested in film.
In 2007 the production of HD camcorders has allowed the public to film in a digital format.




