[Mriss]

[StR_MaRy]

a bigger picture or a explication and i will help you , what i see is a big text you can do this with MTA or map editor

[Gammix]

Thats called texturing your map.
Pretty simple; Useful links:
- http://textures.xyin.ws/?page=textures (textures lib)
- https://sampforum.blast.hk/showthread.php?tid=471474 (see the video)