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You could have seen movies with strong visual effects and heard people say, “The visual effects were amazing,” but what exactly are the visual effects and how do they work?

Whar Are VFX?

According to the VES manual:

Visual effects (commonly shortened to visual effects or VFX) is the term used to describe any image created, altered or enhanced for a movie or other moving medium that cannot be achieved during live shooting. In other words, much of the art of visual effects takes place in post-production, after the primary image capture is complete. Visual effects can be added to the live action, captured through techniques such as matte painting, projection on the back and front of the screen, thumbnail or forced perspective projection, computer graphic objects, characters and environments, and composition of images recorded in any number of ways. The recent explosion of digital tools that make flawless compositing, digital sets and computer-generated characters possible and accessible to motion picture creators at all levels has made visual effects a standard part of every toolkit for motion picture creators.

Wikipedia says:

Visual effects involve the integration of live footage and generated images to create environments that look realistic, but would be dangerous, expensive or simply impossible to capture on film. Visual effects using computer-generated images have recently been made accessible to the independent filmmaker with the introduction of accessible animation and composition software.

So basically, anything that is difficult to film then we use visual effects to get it. For example, aliens attacking the earth are impossible to film, so we use visual effects to make all alien creatures destroy the city. This is a very obvious example of visual effects. We often use visual effects in more subtle areas. For example, if there is a scene in the story that needs to be in another country, an imaginary place or a city in the future/past. It is simply inefficient to go to another country or build a set. Visual effects in this situation are really useful.

Now, to continue with all the knowledge on VFXs, I invite you to browse through the different types of VFXs and different forms of postproduction you may encounter.

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