Where is the calculation of the convex hull needed?

Question

Algorithms

Give real examples of problems in which there is a need to calculate the convex hull.

Answer 1

In games for example. You have a very complex figure, and instead of sweaty processing of the entire figure, you process only its convex hull to handle the collision and save resources.
Usually, that's how they do it. First, they check collisions with the cube in which your figure lies, then the convex hull, and only then the smallest details. This saves a LOT of money.