I'm working on a model for Cities: Skyline. It is my very first model for a game, as a mod or as an asset for my own game.
My question is about the texture usage on meshes. As this wiki says, the limit of map sizes is 2048x2048 though it is set for very special structures such as stadiums.
I'm modeling Brazilian National Congress. So far I have this model, not finished and, as you can see, partially textured.
Then I faced a problem with texture size used at the access ramp. I've set a texture and used the UV map to set the correct position of it and size. By this way, I could set a way bigger size making the tiles to repeat themselves as shown in this image:
But I need to use another texture for windows at the taller buildings for example and if I map the the texture as I've done with the ramp, it wont repeat that small portion of texture but the blank space as well, as shown here:
My question is, how can I get a texture to repeat itself selecting just a portion of it from a bigger map? Is what I'm doing right?