关键词: 虚拟场景模型, Unity3D, 虚拟仿真, MySQL

Abstract:  In order to build a virtual scene rendering platform more scientifically and efficiently, and solve the difficulty of storing and retrieving a large number of virtual scene models, Virtual simulation technology was used to evaluate the orchard using advanced agricultural equipment and reasonable planning, extract and parameterize a large number of virtual scene model feature information, store it in the database, and build a hash index column to accelerate retrieval. Unity3D was used as the scene development platform, combined with a typical open source relational database MySQL as the storage carrier for the characteristic information parameters of the virtual scene model and a hash index column. Driven by data, a threedimensional model that met the needs was quickly constructed, and a large number of threedimensional models were quickly retrieved and called. Taking the orchard scene as an example, the weather system simulation scene data was imported consisting of various fruit tree model data, and realscene scanned terrain data was used to construct an orchard scene database and quickly create a virtual orchard scene simulation platform. The simulation results showed that the database constructed by this method better supported the virtual design and simulation of the scene platform and improved the retrieval efficiency of the 3D model. Additionally, it also shortened the development cycle of the agricultural virtual scene rendering platform, and provided the best solution for the virtual scene rendering platform.

Key words: virtual scene model, Unity3D, virtual simulation, MySQL