What is an optical illusion and how does it relate to film?

What is an optical illusion and how does it relate to film?

Animation works by using an optical illusion. By presenting a sequence of still images in quick enough succession, the viewer interprets them as a continuous moving image. This is the same principle that enables live action film making and projection to work.

What is the main purpose of an optical illusion?

An optical illusion is something that plays tricks on your vision. Optical illusions teach us how our eyes and brain work together to see. You live in a three-dimensional world, so your brain gets clues about depth, shading, lighting, and position to help you interpret what you see.

What are optical effects in film?

Optical effects (also called photographic effects) are techniques in which images or film frames are created photographically, either “in-camera” using multiple exposure, mattes or the Schüfftan process or in post-production using an optical printer.

How do films create the illusion of movement?

On television, as in the movies, the illusion of motion is created by a rapid succession of still images. But instead of being projected from a film, they are produced by a varying-intensity electronic beam that scans the inner surface of the television’s cathode-ray screen at high speed.

What does optical effect mean?

special visual effects, as the wipe or dissolve, created in the camera or especially in a film laboratory by technicians using complex optical and electronic equipment.

What does optical mean in computers?

Optical or optical technology refers to anything relating to light or vision, whether it be visible light or infrared light, that performs a specific function. A computer mouse is an example of an optical device that uses optical technology.

What are mechanical special effects?

Mechanical Effects (also called Practical or Physical Effects), are usually accomplished during the live-action shooting. This includes the use of mechanized props, scenery and scale models, and pyrotechnics. Making a car appear to drive by itself, or blowing up a building are examples of Mechanical Effects.