| Abstract |
3D landscape models as basic data have become one of the important contents of digital city construction. At present, the demand for 3D reconstruction of reality based on computer technology is becoming increasingly urgent. Establishing a single building or a group of buildings in a certain area is no longer sufficient to meet practical needs, and the construction of a 3D landscape model for the entire city has become the primary choice for various regions. Urban 3D modeling includes all elements of a city, including various buildings, urban greening, traffic road network, rivers, lakes and other water systems, bridges, sketches, etc. It can visually reproduce the appearance of this city in 3D on a computer, achieving a combination of reality and virtuality, and is an effective way to build a digital city. This article first analyzes virtual reality technology, elaborates on the relevant theories of this technology, points out the relationship between urban landscape visualization and virtual reality technology, and focuses on the technical issues in scene modeling and roaming engine implementation. Finally, simulation experiments are used to validate different algorithms, and the experimental results prove the feasibility of the rendering method proposed in this article in terms of efficiency. © 2023 CAD Solutions,. |
