What's the difference between 3D game screen and 2.5D game screen? How to tell?

2.5D game refers to an electronic game whose game content is limited to a two-dimensional plane scene by using a 3D engine. This kind of game only has a fixed game perspective (game camera) and cannot be switched freely. It is worth noting that the content of 2.5D games is made by 3D engine, but the game scenes are all 2D plane scene spaces, that is, the game scenes are not 3D modeling, so they are called 2.5D games.

From the game concept of 2.5D, in terms of game content, the game materials such as characters and monsters of 2.5D games need to be modeled by 3D engine, so as to truly make the game characters have shapes, bones and independent skin materials (3D game content); Instead of making a character image through 3D software, then making every action of the character into a plane material picture such as JPG and GIF, and then directly applying it to the game (2D games are mapped with 3D plane materials).

By comparison, it is not difficult to give examples: miracle MU is a typical 2.5D picture game, and Legend of Mir is a 2D picture game.

3D games generally refer to 3D games made with full 3D engines. The characters, scenes and other game content materials of 3D games are all modeled by 3D engines. The game content is placed in the three-dimensional space of XYZ axis (length, width and height); The visual angle feature of 3D games is that the visual angle (camera) of the game can be scaled and rotated freely. Because 3D games have a sense of depth and depth that 2D games don't have, the complexity of game operation will be slightly improved according to different game types.

It is worth mentioning that a brand-new picture technology-cartoon rendering (also called animation rendering) has also been derived in the field of 3D pictures. Cartoon rendering refers to the rendering technology that simulates two-dimensional cartoon animation by rendering texture materials of 3D modeling, but its essence is still 3D games. For example, Street Fighter 4 is a well-known 3D fighting game, which uses cartoon rendering technology.