PanaMotion on film production: What is CGI?

If you were an aged director who attempts to catch up with modern times filmmaking. These are the facts that a young director or even just a movie-goer can enlighten you:

'You can shoot faster because if the grip truck is in the shot at the bottom of the street, it's pretty easy to erase it rather than spend 15 minutes moving it,'' 

''A blemish on an actor's face can be changed. You can add buildings, change the season …

''And, at the high end, there's being able to make fantasy films and make them feel more real.'' (Sydney Morning Herald)

How is that possible? The secret of modern filmmaking is CGI which stands for computer-generated imagery.  The magic cranks up fantasy, creates an illusion of fantasy with imaginative creatures and fantasy world.

 

 (Source: Avatar)

Jurassic Park revives dinosaurs and Toy Story reenergizes talking creatures. In James Cameron’s Avatar, movie-goers surge through a reimagined nature of thick forests and alpine chasms and foaming-mouthed creatures. CGI transport us into another world.

Thanks to CGI, actors are immortal on screen. The time when movies were called off as the result of a lead actor passing away like Marilyn Monroe in Something’s Got to Give has long gone. In Fast and Furious 7, despite Paul Walker’s fatal accident in a November car crash before completing shooting, a complete computer-generated imagery of Paul Walker was able to pull off as a digitalized version of his face imposed on a body (The Guardian). 

What is CGI? According to Science Daily, CGI (Computer-generated imagery) is the application of computer graphics to create or contribute to images in films, television shows, commercials, videos, and other media venues (The University of North Carolina at Chapel Hill).). In addition, CGI is also used to produce images for anatomical modeling, architectural design, engineering, augmented reality (AR) and virtual reality (VR) applications. Technically, CGI is carried out through different methods such as using algorithms to generated fractals, painting in a 2D pixel-based image editor or creating shapes in a vector-based image editor. 3D graphics can create CGI through ray tracing or by rasterized 3D graphics (Techtarget).

According to Computer Stories, the origin of computer-generated imagery traced back to 1968, when a group of Russian mathematicians and physicists led by N.Konstantinov devised a mathematical model to move a cat across a screen. The scientists developed a mathematical model into a program providing a special mainframe computer named BESM-4. The BESM-4 computer was capable of producing hundreds of frames before being processed and converted to film material.

                                                  In addition, CGI is also used to produce images for anatomical modeling, architectural design, engineering, augmented realty (AR) and virtual reality (VR) applications. Technically, CGI is carried out through different methods such as using algorithms to generated fractals, painting in a 2D pixel-based image editor or creating shapes in a vector-based image editor. 3D graphics can create CGI through ray tracing or by rasterized 3D graphics (Techtarget).CGI (Computer-generated imagery) is closely related to VFX (Visual Effects). VFX (Visual effects) is executed in post-production and implemented through CGI (Computer-generated imagery).

(by PanaMotion)