Possible Functionality? - Dynamic Stroke Brush - Output Linked with Stroke Direction

I'm wondering if it would ever be possible to create a custom dynamic stroke brush in Designer that outputs specific colors based upon the brush stroke orientation in Painter. 

Background: I set out to make a Bend Direction map for some VrayFur splines in 3DS Max. However, the plugin that is supposed to facilitate that has not yet been updated for the 2021 or 2022 versions of Max. As a result, I'm going to attempt to paint the directional map in Painter instead.

The Bend Direction map works like a normal map where the RGB values correspond to vector directions based upon the UV layout of the model. I will have to set my brush colors manually based upon the directional information I intend to paint on the mesh. Obviously this is not an easy or efficient way to do things. So, I was wondering if it would ever be possible to make a brush for painting groom directions for this purpose. My guess would be that Painter could work off mesh maps and brush stroke direction, output the data as variables, and those numbers could be run through a designer graph which would automatically --and dynamically, output the correct color for the brush as it's being used. Ultimately, making a result that would "push" the splines in the direction of the brush stroke, but in color map format. 

I hope this makes sense --curious to see what the possibilities are here.  

I haven't painted my maps yet, but please let me know if they might be helpful to serve as an example.