CHAPTER 3

Animation Mechanics

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 ...

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