struct Texture {
  Texture(string const& path) { cout << "Texture loaded from " << path << endl; }
  ~Texture() { cout<< "Texture destroyed" << endl; }

  static shared_ptr<Texture> load(string const& path) {
    return make_shared<Texture>(path)
  }
};

// this functions will take a copy and increment the counter
// using const& would not increment the ref-counter
int doSomethingWithTexture(shared_ptr<Texture> const tex);
int doSomethingElseWithTexture(shared_ptr<Texture> const tex);

void foo() {
  shared_ptr<Texture> tex = Texture::load("textures/my_texture.png");

  thread(doSthWithTexture, tex).detach();
  thread(doSthMoreWithTexture, tex).detach();
}