In this chapter, we have seen how the Unreal Engine handles crowds. In particular, we have seen two built-in systems. The first one is called Reciprocal Velocity Obstacles (RVO), which is very fast, but not very precise. The second is the Detour Crowd, which is a bit more expensive, but more precise and realistic.
In the next chapter, we will move on and learn how to implement our own Behavior Tree from scratch.