In the ancient world, two-dimensional usually referred to a cultural phenomenon. It referred to a fictional two-dimensional world that was usually constructed by comics, animation, games, and other media. The three-dimensional world refers to the real world that we often come into contact with. It should be noted that the ancient style world is not the same as the two-dimensional cultural circle. The ancient style culture is a cultural field with unique meanings and styles. It covers a variety of art forms such as music, literature, painting, etc. The 2D culture was a cultural phenomenon that was introduced from Japan. It mainly covered media forms such as animation and games. The difference between 2D and 3D was that 2D was a fictional two-dimensional world while 3D was the real world. There was a huge difference between the two.