3. Illusions or tricks of the eyes to simulate the imagined events in a story or virtual world Two traditional Categories of SFX 1.Optical Effects 2.Mechanical Effects Special Effects

4. Optical Effects Techniques in which images or film frames are created photographically or in post production processes using an optical printer. Used to place actors or sets against a different background. Movie Magic Episode 2 - Optical FX Discovery Channel ILM Star Wars Return of the Jedi http://www.youtube.com/watch?feature=player_de tailpage&v=GsSz5MZRNt0

5.  Animation  Pixilation  Blue screen  Front Projection effect  Rear projection effect  Matte painting  Glass shot Types of Optical Effects

6. Effects that use mechanized props, scenery, scale models, animatronics, pyrotechnics to accomplish a desired outcome during live action shooting. Mechanical effects are often incorporated into set design and makeup. Mechanical Effects

7. Explosions Special Mechanical Rigs Support systems Stunts Pyrotechnics Scale Models Laser lighting Types of Mechanical Effects

8. Computer generated imagery, in film terms, is the utilization of computer graphics instead of, or in addition to, mechanical and optical effects. CGI gives film-makers greater control, and allows many effects to be accomplished more safely and convincingly—and even, as technology improves, at lower costs. Computer Generated Imagery (CGI)