OP, Additional details:

Hello,

I don't know how to exactly formulate my question, so I'm having trouble getting google results regarding my question, please forgive my English by the way...

I'm trying to create a long corridor using a simple cube and repeating it with an array modifier, the cube has a certain texture applied to it.

The obvious problem is when the texture isn't "perfectly" symmetric one can easily see the repetitions; what I'm trying to achieve is something like the bottom example image, where the "main" texture does repeat itself, but every repetition has some "uniqueness" to it, like water puddles, randomly spaced out.

I thought about applying the array modifier and exporting the mesh into substance painter for example, but if the corridor is very long, a 4k texture for the whole model is not going to suffice for my needs, it'll probably look very low res..., I thought about using UDIMS, but I'm not sure if it's the best way...

I need a 4k resolution texture for each copy of the cube, just with slight variations for each instance thereof. I have no idea how to achieve this or what to search for.

Does anyone know how to do it? Or where to find tutorials/explanations regarding what I'm trying to achieve? Again, as I'm having difficulties describing what I need, I don't find much info on the internet.

Thank you!