Handpainting both base material and normal map
For a "painterly" style project I am currently working on, I am manually painting the normal map in order to give a sort of Brushstrokes effect.


A major difficulty with this strategy, however, is that it requires there to be only one base color with the material. This is due to the fact that if the base color and the normal map patterns do not match up, the painterly effect will no longer work properly.
Is there any way I can hand paint the normal map and base color simultaneously so that these two textures might match up?
Thank you!
