In this tutorial, we cover building a dynamic energy sweep material using bounding box gradients and 3D Voronoi noise—perfect for models with non-uniform UVs. Then, we jump into Niagara to spawn ambient surface sparkles and rising floating energy particles around the crystal mesh.
https://dev.epicgames.com/community/learning/tutorials/2YoE9/unreal-engine-create-a-magical-crystal-energy-vfx-in-ue5-4