WebGL-based Visualization Method for Large-scale 3D Scene

Abstract

For the requirements of transmission and real-time visualization of large-scale threedimensional scenes in the Web environment, this paper adopts the three-dimensional model data structure 3DTiles which is suitable for data sharing and network switching, and analyzes the advantages of building three-dimensional scenes based on 3D Tiles. Meanwhile, through the skipping loading of the hierarchical detail model, the model loading time, network requests and memory consumption are reduced, while the scene data drawing efficiency is improved. Based on these theories and technologies, this paper designs and builds a three-dimensional digital earth platform based on WebGL. Experimental results show that this platform can smoothly implement the drawing of large-scale 3D scenes, and achieve the visualization effects and good visual experience.