UE5 Patterns in Action – Double Buffer, Flyweight, and Spatial Partitioning

Hopefully, you will have realized by now that Unreal Engine 5 is a really big engine. Behind the scenes, it already employs a lot of the patterns that we will cover in later chapters. This chapter will break down the double buffer, flyweight, and spatial partitioning patterns. You don’t need to build these three patterns yourself as Unreal already has good implementations, but knowledge of their existence and how they have been created will help you build on top of them. This chapter will look into how Unreal implements each pattern into a system and what problems they are solving for you in the process. This should give you a roadmap to not only discover more about the engine but also some examples of good practice to reference moving forward.

In this chapter, we’re going to cover the following main topics:

• Double buffer
• Flyweight
• Spatial partitioning