Learn how to dynamically change particle color after collision in Unreal Engine 5 Niagara! In this tutorial, we cover two different methods based on an Unreal Engine forum request: instant color switching upon collision and a smooth, gradual transition over time (creating cool effects like cooling lava/magma).
https://dev.epicgames.com/community/learning/tutorials/KJxv1/dynamic-vfx-color-change-on-collision-in-unreal-engine-5