Special effects are an essential part of modern filmmaking. There are effects that wow the audience — "How did they do that?!" And then there are effects that no one even notices, those subtle visual enhancements that fly under the radar. In both cases, effects are what help create "movie magic."
What are special effects in film?
Special effects are techniques and technologies that create illusions or enhance visual elements in a movie. Otherwise noted as SFX, these effects can be either practical or digital, and are used to add visual interest, realism, or fantasy to a film. Practical special effects involve physical objects and techniques that are captured on camera during filming. Examples of practical effects include makeup, prosthetics, animatronics, miniatures, pyrotechnics, and more. These techniques have been used in filmmaking since its early days to create illusions such as disappearing acts, explosions, or transforming characters.
Digital special effects (also known as visual effects or VFX) rely on computer-generated imagery (CGI), motion capture technology, green screens, and digital compositing. All to create realistic or fantastical visuals that would be difficult or impossible to achieve with practical effects alone. Digital special effects have become increasingly prevalent in modern filmmaking due to advancements in technology and the ability to seamlessly blend them with live-action footage.
What are special effects in movies used for?
Enhancing the appearance of characters and objects.
Creating realistic or fantastical environments.
Making impossible stunts possible.
Depicting otherworldly creatures and beings.
Types of Special Effects
Special effects in film can be divided into two main categories: practical and digital. Both types of special effects have their unique strengths and limitations, and filmmakers often combine them to achieve the desired effect. Let’s take a look at SFX vs VFX.
Practical Effects
Practical effects involve creating physical illusions on set using props, makeup, animatronics, prosthetics, miniatures, pyrotechnics, etc. These effects are often used to create a sense of realism or tangibility in a scene, and can be particularly effective for portraying physical objects such as explosions, creatures, or vehicles. Practical effects can also help actors get into character by providing them with tangible objects to interact with on set.
One of the biggest proponents of the use of practical effects is director Christopher Nolan. In Nolan’s best films from Inception to Dunkirk, Nolan opts for practical effects whenever possible. These range from iconic stunts, miniature models, and in the case of Inception — moving sets.
Visual Effects
Visual effects, often abbreviated as VFX, are a type of digital effect used in films and other media to create or enhance imagery that cannot be achieved through practical means. These effects can range from simple compositing of different elements to create a seamless shot, to complex simulations of physics, weather, or other natural phenomena.
Visual effects can also be used to create fantastical creatures, environments, or events that would be impossible to film in real life. Let’s take a look at another scene from Inception where Nolan actually opted to use VFX.
In this breakdown video, we analyze how and why the scene called for VFX and what it takes to recreate VFX in post-production.
While visual effects offer filmmakers a great deal of creative freedom and flexibility, they can also be time-consuming and expensive to produce.
Additionally, poorly executed visual effects can detract from the overall quality of a film if they appear unrealistic or out of place. As such, it is important for filmmakers to carefully consider their use of VFX in order to achieve the desired effect while maintaining a sense of believability.
Video References:
For further reference: https://www.nfi.edu/special-effects-in-movies/