Unsolved QT3D as simple as possible WITH textures

[Xyrer]

Hi, I'm just trying to render a simple object, but with a texture, I'm still just trying and see what file type is the one I need for this, I tried FBX but it doesn't work as expected, it's just not ready. I tried obj but then the textures in mtl are not supported, I tried png textures but since I'm not a 3d designer I don't know what textures go where and how the designer can export them and from where so they work. I haven't found a single tutorial or example that shows loading a 3d object with textures that can actually be useful on a complex 3d scene, I'm trying to load a map made on autodesk, but loading the map shows me only the mesh, no way to load the textures. Any insights?