Glossary Entry: Jiggle Physics

Quick Definition

When an object moves, gravity and momentum affect its parts in different ways. You can see an example of this when a dancer twirls their skirt - the outer edge of the dress doesn't move in sync with the dancer's motions.

This also has an impact on how a body moves. Fat and loose skin will move slightly independently of the rest of the body. The technology used to simulate this type of movement physics has become known as "jiggle physics", as it's most often used to make sure that certain parts of the female characters' anatomy is moving in an aesthetically pleasing way.

Funnily enough, it's something of a double edged sword. Without jiggle physics, characters in 3D games look like moving action figures. Poorly done or overly exaggerated jiggle physics looks very wrong or even outright painful. Thus, when done right, it's actually not something you'd immediately notice!


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