Five Nights at Freddy's (FNaF) is an American media franchise created by Scott Cawthon. It began with the 2014 video game of the same name and has since gained worldwide popularity. The main series consists of nine survival horror video games taking place in locations somehow connected to a fictional family pizza restaurant franchise named "Freddy Fazbear’s Pizza", after its mascot, the animatronic bear Freddy Fazbear. In most games, the player assumes the role of a night-time employee, who must utilize tools such as security cameras, lights, doors, and vents to defend themselves against hostile animatronic characters that inhabit the locations. The series' lore is gradually revealed through voice recordings, minigames, and easter eggs featured throughout the games. The franchise also includes spin-off games and other media, such as a novel trilogy and an anthology series, comprising an all-encompassing fictional universe. The franchise maintains an active fanbase, known for its production of fan art and fangames, and merchandise for the games is available internationally.
Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.