Basically, I have made a spaceship model that I tested in a game and the time has come to texture it.
The original ships in that game use universal textures, so every mesh has its UVs set to a piece of each chosen texture. Mine is going to be the same in that regard (i.e. no custom UV-unwraps with painted textures).
So, the problem is this - when we have a cylindrical engine mesh, we want a repeating pattern on the adjacent faces, like this: https://p3d.in/sWsav
How do I unwrap my engines and "mirror" each side of that cylinder to use the same UV-coordinates on the texture map? Because, as you can see, its a repeating pattern.
This is the texture: