Creating own "entities" / Models

[Alento]

Nope, models use UV textures which is a good but somewhat confusing way of adding textures. Uv's unwrap a model into 2d and from there you make your texture according to the 2d picture

Continuing further

Go check a tutorial for UV Wrapping to learn how to texture the textures.

well actually I have created the shower and textures now, should I put the textures in to "materialEditor" to get spec files and so on?