What Is VFX? A Complete Guide to Visual Effects in Film & Entertainment

Look closely at a modern film and you will often see things that were never captured exactly as they appear on camera.

A city may be extended beyond the physical set. A background may be replaced. An unwanted object may disappear. A digital creature may interact with a live-action actor. A storm, fire, crowd or environment may be created or enhanced digitally.

This is where VFX, or visual effects, comes in.

Despite the way VFX is often portrayed, it is not limited to explosions, superheroes, monsters or fantasy worlds. Visual effects can be spectacular, but much of the work is designed to be invisible. A successful VFX shot often works precisely because the audience does not notice what was changed.

Understanding what is VFX therefore means looking beyond computer-generated imagery. VFX is a broader filmmaking discipline involving the creation, modification, combination and enhancement of images to achieve something that could not be captured, or could not be captured practically, in the desired form during production.

What Is VFX?

VFX stands for visual effects.

In filmmaking, visual effects are techniques used to create, alter, remove or combine visual elements so that the final image tells the story the filmmaker intends.

Some VFX shots may contain completely computer-generated elements. Others may combine live-action footage with digital environments, matte paintings, simulations or other visual elements. Some may simply involve removing an unwanted object from a shot.

This is why VFX is better understood as a process and discipline than as a single type of effect.

A filmmaker might use VFX to:

• Create a location that does not exist
• Extend a physical set
• Add a digital character or creature
• Replace a background
• Create fire, smoke, water or destruction
• Remove wires, equipment or unwanted objects
• Modify an actor’s appearance
• Combine separately filmed elements
• Make a location appear larger or different
• Add subtle environmental or atmospheric details

The goal is not necessarily to make the image look artificial or spectacular. The goal is to create the intended image convincingly.

What Does VFX Stand For?

VFX stands for Visual Effects.

The term generally refers to visual imagery that is created or manipulated as part of filmmaking and post-production workflows. However, the modern VFX process can begin well before post-production, with planning, previs, asset development and on-set supervision.

This distinction matters because VFX is not simply something that is “added after filming.” Decisions made before and during production can have a major effect on how efficiently a visual effect can ultimately be created.

How Does VFX Work?

There is no single VFX workflow that applies to every production. A simple object removal shot may require only a few techniques, while a large creature sequence may involve modeling, rigging, animation, simulation, lighting, rendering and compositing.

A typical workflow can include several stages.

1. Planning

The process begins by determining what needs to be achieved.

The director, cinematographer, VFX supervisor and other departments may discuss the shot, identify what will be practical and what needs to be digital, and determine how the camera and actors should be captured.

2. Previsualization

For complicated sequences, filmmakers may use previsualization, or previs, to plan shots before full production.

Previs can help establish camera positions, movement, timing, environments and action. It gives the production a clearer idea of what needs to be captured on set and what will later be created digitally.

3. Capturing the Footage

During production, the crew captures the live-action material, often referred to as the plate.

Depending on the shot, VFX teams may also need camera information, reference photography, measurements, lighting information and other production data.

On-set VFX supervision can help ensure that the footage contains the information required for later work.

4. Asset Creation

If the shot requires digital objects, environments, creatures or characters, those elements may be developed as digital assets.

This can involve modeling, texturing, rigging, look development and other preparation before animation or rendering.

5. Tracking and Matchmoving

The VFX team needs digital elements to behave as though they belong inside the original shot.

Tracking analyzes movement within footage. Matchmoving can recreate camera or object movement in a 3D environment so that CG elements follow the perspective and motion of the live-action footage.

This is one reason accurate production data matters.

6. Rotoscopy

Rotoscopy, commonly called roto, involves creating masks or mattes around objects or subjects in footage.

It can be used to separate a person from a background, isolate part of an image or allow specific elements to be altered independently.

Modern software increasingly includes AI-assisted roto tools, but these tools are designed to accelerate artist workflows rather than eliminate the need for visual judgment and refinement. Foundry and Adobe, for example, have introduced machine-learning and AI-assisted approaches to rotoscoping in their professional tools.

7. CG, Simulation and Rendering

When a shot requires digital elements, artists may create CG models, animation, environments or simulations.

Simulations can reproduce phenomena such as smoke, fire, water, dust or destruction. The resulting elements then need to be rendered into images that can be integrated with the original footage.

8. Compositing

Compositing is where many of the different visual elements are brought together.

A compositor may combine live-action footage, CG renders, matte paintings, effects, backgrounds and other elements into a single image. The goal is to make all of those components appear to belong to the same shot.

ScreenSkills describes compositors as responsible for creating the final image from different digital materials, including CG imagery, live-action footage and matte paintings.

9. Review and Final Delivery

VFX shots normally go through multiple rounds of review and revision.

The director, VFX supervisor, client or other stakeholders may request changes to lighting, animation, compositing, realism or storytelling.

Once approved, the completed shots are delivered as part of the final production.

VFX vs CGI vs Animation vs SFX

These terms are often used interchangeably, but they describe different things.

The important point is that CGI can be part of VFX.

CGI does not automatically mean VFX, and VFX does not automatically mean CGI. CGI is a method for creating computer-generated imagery; VFX is the broader filmmaking discipline in which that imagery may be used.

Practical effects are also not the opposite of VFX. Modern productions frequently combine practical and digital techniques.

The Academy’s educational material distinguishes visual effects from physical effects, with practical effects being performed live using real-world elements.

Types of Visual Effects

VFX covers a wide range of techniques.

CG Environments and Digital Sets

Digital environments can create locations that would be impractical or impossible to build physically.

A production may combine a real set with a digitally created environment to expand the visual scale of a scene.

Digital Characters and Creatures

Digital characters can be used when a physical performer, animatronic or costume cannot deliver the required performance or appearance.

This is particularly useful for creatures, fantastical beings and characters that need to interact closely with actors or complex environments.

Set and Environment Extensions

A production does not always need to build an entire location.

A physical set can be extended digitally to make a building taller, a city larger or an environment more expansive.

Green-Screen and Blue-Screen Compositing

Subjects can be photographed against a controlled background and later composited into another environment.

The technique is particularly useful when the desired environment cannot be physically present during filming.

Simulations

Digital simulations can create effects such as:

• Fire
• Smoke
• Water
• Dust
• Destruction
• Debris
• Weather

Rotoscopy and Object Removal

Not every VFX shot involves creating something new.

VFX teams also remove unwanted objects, wires, rigs, signs, crew members or other visual distractions from footage.

Digital Facial Work and De-Aging

Digital techniques can also be used to modify facial features, repair details or create controlled age changes where required by the story.

The work can involve detailed tracking, compositing and digital image manipulation rather than simply generating an entirely new face.

The VFX Production Pipeline

A useful way to understand VFX production is to divide it into three connected phases: pre-production, production and post-production.

Pre-Production

VFX planning can begin before the cameras roll.

The team may develop concepts, previs sequences, determine technical requirements, prepare assets and identify which parts of a scene will be practical and which will be digital.

This planning is important because a visual effect cannot always be solved efficiently after filming if the necessary information was never captured.

Production

During production, the VFX team works alongside the filmmaking crew.

A VFX supervisor may advise on camera setups, green-screen requirements, practical elements, reference material and data capture.

The objective is to collect footage and information that will support the visual effect later.

Post-Production

After filming, VFX artists begin the detailed work of tracking, roto, asset creation, animation, simulation, rendering, compositing and finishing.

The process is iterative. Shots may move back and forth between departments before they are approved.

This is why a VFX pipeline is better understood as a connected production system rather than a simple checklist.

How Is VFX Used in Movies and Entertainment?

VFX in movies is perhaps the most visible application, but visual effects are used across much more than feature films.

VFX can be found in:

• Feature films
• OTT and streaming productions
• Television
• Advertising
• Music videos
• Branded content
• CG and animated productions
• Games and interactive entertainment

Importantly, VFX does not always mean spectacle.

A filmmaker may use VFX to remove an unwanted object from a frame, extend a location, create a crowd, correct continuity or subtly improve the realism of a scene.

This invisible work can be just as important as a large digital creature or destruction sequence.

Why Do Filmmakers Use VFX?

The reason to use VFX is usually practical or creative.

A filmmaker may need to create an environment that cannot be built. A scene may involve dangerous conditions that are not safe to reproduce. A location may need to look completely different. A production may need a character or creature that cannot be achieved practically.

VFX can also give filmmakers greater control over visual continuity.

But VFX is not automatically better than practical filmmaking. The appropriate solution depends on the shot, budget, schedule, safety requirements, creative objective and production conditions.

In many cases, the best result comes from combining physical production techniques with digital work.

What Does a Visual Effects Studio Do?

A visual effects studio is a production partner that creates some or all of the visual effects required for a film, series, commercial or other project.

The exact scope varies significantly.

A studio may be responsible for a small number of specialist tasks, such as rotoscopy or cleanup, or it may handle large sequences involving environments, creatures, animation, simulations and compositing.

VFX studios work with directors, producers, production companies, cinematographers, editors, agencies and post-production teams.

For example, Digikore Studios describes its VFX operation as providing a broad range of services including matte painting, look development, set extension, crowd replication, beauty work, rig removal, natural phenomena, environments, characters, animation and compositing.

The important point is that a VFX studio is not simply a collection of artists operating software. Production management, supervision, communication, review and technical infrastructure are all part of delivering VFX at scale.

Real-World Examples of VFX

Jurassic Park

Steven Spielberg’s Jurassic Park remains an important example of how visual effects can solve a filmmaking problem that cannot be addressed through conventional photography alone.

The film’s dinosaurs combined groundbreaking digital work with practical effects. The Academy notes that the film helped mark the transition from stop-motion approaches toward computer-generated effects and won the 1994 Academy Award for Visual Effects.

The lesson is not simply that CGI created convincing dinosaurs. It is that different effects disciplines were brought together to make creatures believable within a live-action film.

Life of Pi

Life of Pi provides another useful example of practical and digital techniques working together.

The production used a large water tank and physical boats for portions of the film, while visual effects helped create the wider ocean environment and the digital tiger seen in the finished movie.

The Academy has documented the production’s combination of physical water effects, practical boat elements and visual effects work.

The result demonstrates why the practical-versus-digital debate is often misleading. Filmmakers can use both when each is appropriate.

Common Misconceptions About VFX

“VFX means CGI.”

Not exactly.

CGI is one component of the wider VFX discipline. A VFX shot may contain CGI, live-action footage, practical elements, matte paintings, simulations and other techniques.

“VFX is only for action or fantasy films.”

False.

VFX can be used in dramas, advertisements, documentaries, television, branded content and ordinary-looking scenes.

“Everything in a VFX shot is computer-generated.”

No.

Many VFX shots begin with real footage and modify only selected parts of the image.

“VFX is added only after filming.”

Not necessarily.

VFX planning can influence storyboarding, previs, camera decisions, set construction and on-set data capture long before post-production begins.

“Practical effects and VFX cannot be used together.”

They can, and frequently are.

The combination of practical and digital effects can give filmmakers more control over performance, lighting, physical interaction and final image construction.

What Does the Future of VFX Look Like?

The VFX industry is moving toward increasingly connected production and post-production workflows.

Virtual production is one established development. Technologies such as LED-based stages and real-time environments can bring digital environments into the physical filmmaking process. ILM’s StageCraft, for example, is described by the studio as an end-to-end virtual production solution supporting multiple aspects of production.

AI-assisted workflows are another significant development.

In 2026, professional tools are increasingly incorporating AI and machine learning into tasks such as rotoscoping, animation assistance and production workflows. Adobe’s Object Matte uses AI-assisted subject isolation and tracking, while Foundry has introduced SmartRoto for Nuke to assist with rotoscoping.

The more useful way to think about this development is not “AI replaces VFX artists.” Professional VFX still requires artistic judgment, technical supervision, consistency across shots and control over the final image.

Instead, AI and automation are increasingly being used to reduce repetitive work, accelerate iterations and give artists better starting points. Autodesk’s 2026 updates similarly frame AI as an assistant within professional animation and VFX workflows rather than as a replacement for creative control.

The broader direction is clear: production, virtual production, animation, VFX and post-production are becoming more interconnected.

Conclusion

So, what is VFX?

At its simplest, VFX is the craft of creating or manipulating visual imagery to achieve something that could not be captured in the desired form through ordinary photography alone.

But that definition does not capture the full discipline.

VFX involves planning, filmmaking, photography, CG, animation, simulation, tracking, rotoscopy, compositing and many other specialist skills. Sometimes the result is a spectacular digital world. Sometimes it is simply the removal of a wire that the audience never notices.

That is ultimately what makes good VFX effective.

It is not about showing the audience how much technology was used. It is about using technology, artistry and production expertise to make the story work on screen.

For filmmakers, producers, brands and audiences, understanding VFX means understanding one of the tools that has become integral to modern visual storytelling.