Any idea on how to obtain a custom Velocity direction based on referencing the normals of a geometry and obtaining tangents or perpendicular vectors?

The overall idea would be to pipe this into pops or autodop flip sim and have the particles flow around geo. Also, if there are better workflows I'm all ears.

I hope that helps.

Custom Forces [vimeo.com]

Nice,

That was awesome tutorial. Thanks for the heads up on that.