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Visual effects

arts Maturity 9-11 Next article →

Visual effects, often called VFX, are used to create or change images in movies and videos. This process helps filmmakers show things that would be too dangerous, expensive, or impossible to film in real life.

Green screens compare with Iman Crosson 20110524
Green screens compare with Iman Crosson 20110524

VFX can involve combining live-action footage with computer-generated imagery, also known as CGI. This makes digital characters or worlds look very realistic. Today, even independent filmmakers can use affordable animation and compositing software to make these effects. It is a way to bring amazing stories to life on a screen.

There are many different ways to make these illusions. Some effects are called special effects, or SFX, and happen during the actual filming. These are mechanical or optical tricks, like using real wind, rain, or fog on a set. Makers might also use prosthetic makeup to turn an actor into a creature.

Madame Nobel - film set at the Embassy of France in Vienna May 2014 08
Madame Nobel - film set at the Embassy of France in Vienna May 2014 08

Other effects happen later in a process called post-production. For example, a green screen allows a new background to be added to a shot later. Artists can also use matte painting to create a landscape that does not exist.

People have been using trickery in movies for a very long time. In 1857, Oscar Rejlander made the first special effects image by combining 32 different negatives. Later, in 1895, Alfred Clark created the first motion picture special effect. He used a "stop trick" to show a queen being beheaded. He stopped the camera, swapped the actor for a dummy, and then started filming again.

L'hommealatêtet
L'hommealatêtet

Georges Méliès also discovered this trick by accident when his camera jammed in Paris. He became known as the "Cinemagician" because he made over 500 short films.

Modern technology has added even more incredible tools to the filmmaker's kit. One amazing method is motion capture, or mo-cap. This records the movements of human actors to animate digital characters.

Activemarker2
Activemarker2

When it captures tiny details like faces and fingers, it is called performance capture. Another tool is 3D modeling, where artists use software to build mathematical versions of objects. They can even use rigging, which uses virtual bones to help move a character's skin. This makes the movement of a digital person or even a door look natural.

All these techniques help bridge the gap between what is real and what is imagined. Animators can use rotoscoping to trace over live footage frame by frame for realistic action.

Then & Now - Main Hall
Then & Now - Main Hall

They can also use match-moving to place computer graphics into a real scene with the right scale and motion. Whether it is through old-fashioned puppets or new 3D printing, these tools change how we see stories. From the first stop trick to modern CGI, VFX continues to grow and change the way we watch movies.

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