What Comes Under Visual Effects?

Rocky Shi

July 7, 2022

Rocky Shi

There are several disciplines involved in filmmaking. These disciplines can range from motion capture to CGI, and from mechanical effects to animation and R&D. This article will cover the various types of visual effects, and what they are used for. Here are some examples of how these techniques use in the real world. After you finish reading this article, you will have a much better understanding of the various branches of filmmaking.


Computer generated imagery is a term that refers to the work of professionals who use computer-generated images (CGI). These images are made from 3D models of buildings, people, monsters, cars, explosions, and more. The computer-generated images are then blend with live-action footage using a process known as compositing. This process is also called the green screen. It’s one of the most common uses of CGI.

Science-fiction blockbusters are often 90% CGI, but there are exceptions. A short overview of some of the most famous examples follows. If you’re looking for an explanation of how CGI works in film, take a look at these examples.

Motion capture

Motion capture, or mo-cap, is a technique for filming actors in real time and transferring the recorded data to a computer. This method is most commonly uses in movies and television shows, where actors’ facial expressions and general movement can capture for photorealism. Other uses of motion capture include robotics and sports. The video and audio data collected during motion capture can use to create virtual humans that can move around the screen.

One advantage of this technology is that it only records a single continuous direction; additional sensors required for different directions. This is why the motion capture is so valuable for movies.


In filmmaking, compositing is a technique that involves mixing images from two or more different sources. This technique is popular in video games, design, and photography, as well as in film. Probably its most common application is in car scenes. The practice of compositing dates back to the late 1800s, when French filmmaker George Melies was experimenting with multiple exposures. Using different images, the animator created different characters with different motions.

In video production, compositing involves the combination of two or more images to create the illusion of a single scene. Often, this process takes place in post-production One common example is a weatherman standing in front of a green screen. While modern compositing usually involves digital image manipulation, the technique can trace back to the trick films of George Melies, one of the most famous directors in history.

Mechanical effects

Special effects make movies look realistic. There are two types of special effects – practical and optical. Practical effects involve manipulating the camera position and light angle to create the desired effect. Optical effects use special equipment to produce the image. Mechanical effects involve adding objects to make the desired effect. In the modern digital age, visual effects can take many forms.

One type of visual effect involves the use of a mechanical device to make a special effect. This uses in film or television. The most common application of mechanical effects is in sci-fi films. The same principle applies to other visual effects.


Before using pyrotechnics for special effects, key production personnel should consult with a safety professional or consult with the child’s parent. For those who want to become pyrotechnic performers, you must complete a training program and acquire appropriate certifications.

Students can study pyrotechnics by taking a course through the Institute of Explosives Engineers (IEE). BECTU members can view full details of courses. Career progression in the special effects industry includes working as a trainee technician, senior technician, and supervisor.