Breast movement in games (Patreon)

To simulate the movement of the chest in a game when a woman character walks, developers use the Soft Body Physics method (not only this, but it's simple and understandable):

The chest is modeled as a network of nodes connected by springs. These springs represent the elastic properties of breast tissue, much like how certain underwear is engineered for support.

When the character moves, forces such as gravity and inertia act on the chest, causing it to oscillate. The springs allow the breasts to expand and contract, imitating natural movement.

To prevent endless oscillations they reduces the amplitude of oscillations over time, ensuring those bouncy bits settle down eventually, keeping things realistic and smooth.

and you also say that physics is not useful😌😌😌

Pic credit:
Wikipedia