I have some problems about the textures of the 3D objects.
In your samples, all your object are described in its .obj file, and its texture is in its .png file. The .obj is converted in a .h file which is placed in the project. The image of the texture is placed in the project too.
The problem is, when I use other 3D objects, some of them have their texture described in a .mtl file, and there is no .png image of thier texture. So I converted the .obj file into a .h file, and placed it into the project.
But how can I do to place the texture into the project?