Game Development Reference
In-Depth Information
Animation Mechanics
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Animation is about creating the illusion of life. And you can't create it if you don't
have one.
Brad Bird
3.1 Introduction
Animation is the underlying mechanic on which the visual aspect of computer
games is built. It is the illusion of movement created through the display of
a rapid succession of images, each slightly different from the other, creating
the impression of motion. Animation is possible because of biological
phenomena involving the human eye.
Originally, the perception of motion was explained by a theory known as
persistence of vision , which refers to the afterimage that appears on the retina
for approximately one-twenty-fifth of a second. You will notice this effect after
staring at something and then closing your eyes. A negative type of imprint
will be apparent. This effect is exaggerated if you look at a high-contrast
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