人民长江2024，Vol.55Issue(4)：178-183,6.DOI:10.16232/j.cnki.1001-4179.2024.04.023
面向Web的地下洞室群模型加载与渲染优化设计
Optimization design on model loading and rendering of underground cavern group based on Web
摘要
Abstract
In order to reduce the rendering pressure caused by large-scale 3D scenes to WebGL pipeline,the dynamic loading strategy of the 3D scene was adjusted and optimized according to the structure and distribution characteristics of the underground cavern group.By comparing and analyzing the LOD process in BIM and GIS fields,a dual LOD process mechanism considering both the level of detail and the level of development of the model was designed.In addition,by studying the structural characteris-tics and spatial division of the traditional pyramid index,a spatial index structure which can automatically adjust the boundary was designed by integrating various tree structures.A dynamic scheduling algorithm based on progressive loading was proposed.The test results show that this method can improve the rendering efficiency and stability of large-scale BIM models in WebGL.关键词
地下洞室群/模型加载/模型渲染/BIM/LOD/WebGL/CesiumKey words
underground cavern group/model loading/model rendering/BIM/LOD/WebGL/Cesium分类
建筑与水利引用本文复制引用
张澍,张歆..面向Web的地下洞室群模型加载与渲染优化设计[J].人民长江,2024,55(4):178-183,6.基金项目
长江设计集团自主研发项目(CX2021S006) （CX2021S006）
