A special effects supervisor, also referred to as a special effects director, special effects coordinator or SFX supervisor, is an individual who works on a commercial, theater, television or film set creating special effects. They are generally the department head who defers to the film's director and/or producers, and who is in charge of the entire special effects team. Special effects include anything that is manually or mechanically manipulated (also called "practical effects" or in camera effects).[1][2] This may include the use of mechanized props, special effects makeup, props, scenery, scale models, pyrotechnics and atmospheric effects: creating physical wind, rain, fog, snow, clouds etc.
Special effects (SFX) or (SPFX) are produced on the set, as opposed to those created in post-production which are generally called "visual effects" (VFX). In recent years, physical special effects have been increasingly overshadowed by computer-generated imagery (CGI) effects created in post-production."[1]
Examples of special effects are explosions, car crashes and chases, gunshots, earthquake effects, special makeup, prosthetics, special set construction, snow and rain.
A special effects technician is a person working in the special effects department, under the special effects supervisor, who is responsible for creating and assisting special effects. Movies with many special effects may require many special effects technicians.