Special effects are traditionally divided into the categories of optical effects and mechanical effects. With the emergence of digital film-making tools a greater distinction between special effects and visual effects has been recognized, with "visual effects" referring to digital post-production and "special effects" referring to on-set mechanical effects and in-camera optical effects.
Optical effects (also called photographic effects), are techniques in which images or film frames are created photographically, either "in-camera" using multiple exposure, mattes, or the Schüfftan process, or in post-production processes using an optical printer.
An optical effect might be used to place actors or sets against a different background.
Mechanical effects (also called practical or physical effects), are usually accomplished during the live-action shooting. This includes the use of mechanized props, scenery, scale models, pyrotechnics and Atmospheric Effects: creating physical wind, rain, fog, snow, clouds etc. Making a car appear to drive by itself, or blowing up a building are examples of mechanical effects. Mechanical effects are often incorporated into set design and makeup. For example, a set may be built with break-away doors or walls, or prosthetic makeup can be used to make an actor look like a monster.
Since the 1990s, computer generated imagery (CGI) has come to the forefront of special effects technologies. CGI gives film-makers greater control, and allows many effects to be accomplished more safely and convincingly -- and even, as technology marches on, at lower costs. As a result, many optical and mechanical effects techniques have been superseded by CGI.
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| LM Productions http://www.lm-productions.com/ LM Productions specialises in visual multimedia communications, incorporating the most advanced technologies and award winning creativity to produce events ranging from an intimate laser show to the largest and most spectacular multimedia installations around the world. New technologies for 2008 include our new 360° Omniscan Laser projector, multi-screen video servers for flat and dome screen projection (upto 18 screens), volumetric projection screens in many different shapes and sizes as well as our new StratoSphere range, 25m, 18m, 16.5m, 15m, and our baby 10m. We have over 20 years of expertise in the entertainment industry forming award winning productions which integrate lasers, StratoSpheres and multimedia effects for events worldwide. We have an extensive portfolio of worldwide clients and have produced shows with varying levels of production from Christmas light switch-on events to stadium shows. We have worked for well known advertising agencies around the world as well as the end client, providing them with innovative ideas and concepts to help create a unique event. - (Read more) |
| I-FX Films http://www.i-fx.tv/ I-FX Films has over 14 years experience in creating Physical and Pyrotechnical Special Effects for Feature Film, Television, Commercials, and Music Videos in the UK and abroad. We believe in giving everyone the opportunity to create fantastic Special Effects for your production whatever the budget and wherever the production.
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