I’ll let someone else correct me as it’s been a minute since I last did any texture work. I think you’re right in it not being the texture image resolution itself. And instead it might either be the brush resolution, the UV island size in comparison to the texture image’s resolution, or the placement of the island – ie the rotation at which it is layed out. I think I recall it being mentioned in the Pothead course that it’s ideal to align your islands as best as possible with the U and V axis (in the case of 2d it’s X and Y). Again, I’m reaching into the back of my memory so I might be misleading you (sorry if I am woops). But I’m going to place my money on it being the UV island scale. (edit: the placement of the offending island looks perfectly fine so ignore that part)
Could you upload a screenshot of the texture image with the UV’s unwrapped and unpacked so I can see if they ought to be scaled up?
