How to create Custom Velocity Modlue using Mesh Vertex Normal Tangents?

[nymeria035]

Would anyone happen to know how to calculate a directional force pointing one vertex normal to another vertex? I’ve created this type of point velocity in Houdini but I’m not sure how I could create that using Niagara’s node system. I’d appreciate any advice on how to tackle this problem.

[Cghow (Ashif Ali)]

use sampled bit tangent in velocity or multiply it with velocity. same you can use mesh normals