Special effects

3D audio effects are a group of sound effects that attempt to widen the stereo image produced by two loudspeakers or stereo headphones, or to create the illusion of sound sources placed anywhere in 3 dimensional space, including behind, above or below the listener. 3D audio effect"

Audio-Animatronics or just animatronics is a form of robotics created by Walt Disney Imagineering for several shows and attractions at Disney theme parks, and subsequently expanded on and used by other companies. The robots move and make noise, generally speech or song. An animatronic robot is different from an android in that an animatronic works off prerecorded moves and sounds, rather than processing external stimuli and responding to them. Audio-Animatronics"

Bluescreen (also known as Chroma Key) is a term for the filmmaking technique of shooting foreground action against an evenly-lit monochomatic background for the purpose of removing the background from the scene and replacing it with a different image or scene. The term also refers to the visual effect resulting from this technique as well as the colored screen itself (although it is often not blue; for example, with greenscreen). Bluescreen"

Bullet time (often hyphenated as bullet-time) is a concept introduced in recent films and computer games whereby the passage of time is displayed as extremely slow or frozen moments in order to allow a viewer to observe imperceptibly fast events (such as flying bullets). It is often used to create a dramatic effect, as in the film The Matrix. Bullet time"

CineMagic was the name of film development technique invented by 3-D movie producer Sidney W. Pink in the 1959 science-fiction movie The Angry Red Planet to cast a pinkish glow over the screen. The point of the technique was to make the actors look more like cartoons so they could fit into less realistic backgrounds, the overall effect being that the movie would look more impressive even with a smaller budget. CineMagic (film technique)"

Digital compositing is the process of assembling multiple images to make a final image, typically for print, motion pictures or screen display. Digital compositing"

The dolly zoom is an unsettling in-camera special effect that appears to undermine normal visual perception in a way that is difficult to describe. The effect was invented by Irmin Roberts, a Paramount second-unit cameraman, and was famously used by Alfred Hitchcock in his film Vertigo, although it appeared earlier at the climax to his film Spellbound. Dolly zoom"

Forced perspective is a filmmaking technique employed to make larger objects appear smaller to the viewer or vice versa, depending on their relationship to the camera and each other. Forced perspective creates an optical illusion, used primarily to make objects appear far away when set space is limited. Movies (especially B-movies) in the 50's and 60's are notorious for obvious and badly done forced perspective angles. Examples of forced perspective: Forced perspective"

A greeble is a small piece of detailing added to break up the surface of an object to add visual interest to a surface or object, particularly in movie special effects. Greebles are closely related to nurnies. Greeble"