07-16-2022, 03:43 AM
Normals in Max aren't really a good way to store data, plus tyFlow typically calculates them on the fly (in fact currently tyFlow ignores all explicit normal values). It would make more sense to store that type of data in UVWs, which are properly interpolated and carried forward in virtually all max functions and modifiers. Eventually it might be interesting to explore the option of painting vectors and things to orient particles, or move them. For now there are other plugins available that allow you to do that (ex: VECmap tools from Kinematic Lab).