In this tutorial, we dive deep into the Region Mask Module in UE5 Niagara! You’ll learn what region masks are and how you can use different mask shapes (Sphere, Box, Planar, Slab) to drive particle color, size, velocity, and curl noise. Finally, we’ll integrate the effect into an Unreal Engine Blueprint so the particle region tracks your player character in real time!
https://dev.epicgames.com/community/learning/tutorials/xdKl1/unreal-engine-region-mask-module-in-ue5-niagara-tutorial