What is a NavMesh in Unity?

Question

I want to know about the NavMesh present in Unity3d. Why is it used? What features does it provide to a game developer?

Answer 1

Navmeshes are normally used in pathfinding. These are a type of data structure which are designed to finding a path between some objects over a large space. See this link for a more thorough description and its usage in Unity3d.

Answer 2

A navigation mesh or navmesh is an abstract data structure is used in artifical intelligence application aids to agent to find path in the complicated spaces is called navmesh