What is VFX?

Any imagery generated, altered, or improvised for cinema or other moving media that does not occur during live-action filming is called a visual effect (VFX). It is common in VFX to integrate actual footage with this converted images to create realistic looking landscapes for reference. These created planets are either too dangerous to shoot at or worlds that don’t exist at all. They achieve this through computer-generated imagery (CGI) and typically visual effects software (VFX). VFX producers work with directors and cinematographers to figure out which scenes to work with on the green screen.

Visual effects differ from special effects in that they use a computer and are applied after the fact. Special effects, often referred to as SFX, are created on site and include controlled explosions, simulated gunshot wounds, and more.

Dragons soaring in the sky in Game of Thrones, or a starship floating in space in Star Wars, are examples of visual effects.

Types of visual effects Used in Movies

There are many different components to the VFX process, but they can all be broken down into three categories: CGI, compositing, and motion capture. Each of them takes place after primary photography or at the same time in a specialized and regulated studio (for example, a mocap studio).

Visual effects artists use a variety of methods to help blur the boundary between “real” and “false.” An HDRI (High Dynamic Range Picture) tool is one such tool.

1. Computer generated visual effects (CGI VFX)

CGI (Computer Generated Imagery) is now a widely used visual effect. And it’s all too easy for people outside the film business to group all visual effects under the umbrella of computer-generated imagery (CGI). Granted, computers are now needed for almost all kinds of visual effects, so it’s a fair assumption. However, the difference between VFX and CGI is clear.
CGI is imagery created entirely within computers for our needs, and other types of visual effects use it to enhance or mix live action videos. The most obvious example is computer-generated animation, which Pixar has dominated for the past three decades.

2. Compositing and green screen VFX (SHOOTING FOR VFX)

Compositing is described as the process of combining multiple images into a single image. One example is the use of double exposure, as shown in True Detective’s still-amazing opening scene. Aside from double exposure, the most common and well-known compositing technique is green screen photography (or blue screen). The method is known as chroma keying, and involves replacing a solid background color with a new background picture. Let’s move on to the final form of visual effects, motion capture, which blends the power of CGI with the realism of live action.

3. Motion capture visual effects (THE FUTURE OF VFX MOVIES)

Visual effects artists can now employ live action context to produce more realistic CGI, similar to the classic rotoscoping process. Motion capture is the term for this process (or mocap). Although the technology has been around for a while, its capabilities seem to be improving every year.

VFX examples in movies (VISUAL EFFECTS IN MOVIES)

  1. Dumbo (2019)

Disney is wasting no time. In his live-action remake, he is going all out. Because most of them include talking animals, they all have equally impressive visual effects.

The photorealistic elephant in Tim Burton’s remake was created from clay models that were scanned into a computer for animation.

2. Dawn of the Planet of the Apes (2014)

Weta Digital sought to capture the most realistic performance possible, using a combination of motion-capture film and hand-drawn animation.

3. The Matrix (1999)

This picture raised the level of cinematography in many ways. Keanu Reeves’ character dodges a gunshot in a famous moment. Take a look at the scene below. How did he pull it off? VFX supervisor John Guetta used a technique called “bullet time” to create this frozen scene. Gaeta, in collaboration with filmmakers and cinematographers, placed 122 stationary cameras around Reeves, which were then switched on in sequence.
However, to ensure that the cameras were hidden, they needed to create photorealistic sets from which the cameras could be recovered. Furthermore, computer code on screen had never been done before, or at least never successfully. Gaeta, a second VFX supervisor, Kim Liebery, and the rest of the crew were able to convey the concept of “thinking in code” to the public.

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