023194092003

A New Method of Virtual Reality Based on Unity3D
Sa Wang1,2*, Zhengli Mao2, Changhai Zeng2, Huili Gong1, Shanshan Li1, Beibei Chen1
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The Key Lab of Resource Environment and GIS, Capital Normal University, Beijing, China Department of Surveying and Urban Spatial Information, Henan University of Urban Construction, Pingdingshan, China * Corresponding author: [e-mail] which support databases, regular expressions, XML, file access and networking. Scripting is frequently thought of as limited and slow, but in Unity3D scripts are compiled to native code and run nearly as fast as C++. It is easy to get the fast iteration times and ease of use for someone who likes scripting languages. These three languages in game development projects can also be mixed-use.Unity3d also supports the Windows platform, C#, VB.net, VB6, Delphi and other programming languages. The Unity3D game engine and the Unity3D development environment are tight integrated, so it provides a very powerful visual editor and language levels of the network. In this research, we use Unity3D as the development platform for virtual reality. The study area is the campus of Henan Institute of Urban Construction, Pingdingshan, China, with an area of 1,066,667m 2, ranging from 33°46′11″N to 33°46′42″N, 113°10′52″E to 113°11′36″E. II. FRAMEWORK AND IMPLEMENTATION

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Abstract—In the area of geographic information system, there are always two methods to get 3D virtual reality, one is to use a 2D professional platform such as ArcGIS software to get the virtual reality by secondary development, the other is to use a 3D or 2.5D software as a platform for development, such as the Skyline software. In this paper, we will use a different platform, Unity3D, which is usually treated as game development software, as a virtual reality development platform. Firstly, the hierarchical approach of geographic information system is adopted in the study area, and the area is divided into four layers: Terrain Layer,