Language
Country/Area
No result found
Exploring the boundary between 2.5D and true 3D: Do you know the difference between them?
In today's digital games and virtual reality environments, players are often lost in the visual stimulation of 2D and 3D. Among these visual effects, the difference between 2.5D and true 3D is often not understood. People delve into it.
2.5D VS True 3D: Definition and Characteristics
The term 2.5D (two and a half dimensions) mainly refers to the fact that in games, although the environment is simulated and rendered with three-dimensional data, it is still limited to two-dimensional planes for play or movement. In contrast, true 3D is free and unrestricted exploration in a three-dimensional environment.
In short, 2.5D games have a three-dimensional effect in performance, but they are still essentially two-dimensional games.
Projection technology in computer graphics
In 2.5D graphics, Axonometric projection and Oblique projection are often used to obtain three-dimensional effects. These techniques allow players to see more details of the environment than traditional top or side views by slightly rotating the viewpoint.
Application of Bill Porter Technology
In a three-dimensional scene, Billboarding is a technology that presents objects as two-dimensional images and makes them always face the player. This allows players to still enjoy unique visual effects even in an era when hardware performance does not support fully 3D objects.
Environment expansion: skybox and sky hemisphere
Skybox and Skydome are common background technologies in games to make the scene look larger. These techniques use cube faces or spheres to map distant environments, creating the illusion of a three-dimensional space.
Visualization of Z-axis scale model
Many games simulate movement on the Z-axis (depth axis) by scaling the size of sprites, such as Sega's "Out Run". Through such technology, players will experience a more realistic driving experience when playing.
Application of parallel rolling effect
Parallax scrolling refers to the independent movement between a number of 2D sprite layers to create an additional sense of depth. It was first used in "Moon Patrol" in 1982, and has since been widely used in many classic games.
The evolution of simulation technology
With the evolution of technology, many large-scale games have begun to simulate light and shadow effects, such as bump mapping and normal mapping, to make three-dimensional objects more realistic.
Finally, these technologies have gradually expanded the boundaries of gaming from early arcade games to today's high-end games. Whether it is 2.5D or true 3D, players enjoy not only the game itself, but also the deeper technical strategies and design concepts behind it. However, when you play these games, have you ever thought about how much technology and ideas are behind their performance?
