I intend to develop a fantasy 3D game focused on warships, with a look similar to oil paintings.
The reasoning behind this decision is that the art style would allow for a sense of wonder and curiosity.
Currently, the most viable technique I could think of was to make the 3D models into "onions" with multiple layers one after another with multiple types of strokes. But this seems very labor intensive to me, and would probably make the models too heavy to run efficiently (I haven't tested it yet, I'm looking for references before trying).
The main problem is that I couldn't find anything concrete and free to use that could match an oil painting.
The most pertinent example I come across is Arcane, where they use Digital Painting to texture (I think it's texturing and not a machine learning program that paints frame by frame) the characters.
I also found a PS4 game which is a game creation tool called "Dreams", however I don't own a PS4 and I wouldn't be able to extract the models created there for Blender either.
I also found some programs that use machine learning to turn videos into animated oil paintings, but it only works with videos and I don't have the knowledge to try to turn this into an engine (assuming it would be possible).
(This one program in specific is called "EbSynth")
Or, at the end of the day, am I just having too unrealistic expectations, just like anyone excited with a new project?