摘要
针对虚拟仿真中渲染显示大规模三维模型的计算机资源消耗大、刷新率低的难题,提出基于八叉树的PagedLOD大规模三维模型可视化方法,实现了以零件为单元进行大规模模型数据的动态调度.通过以动车组检修大型模型实例作为验证,结果表明了相比于传统的直接渲染方式,此方法在大规模模型场景中能够在保留原装配树结构的前提下,实现模型数据的动态调度,有效地控制内存的占用,提高场景刷新率.
Aiming at the problem of high consumption of computer resources and low refresh rate in rendering and displaying large-scale 3D models in virtual simulation,a PagedLOD large-scale 3D model visualization method is proposed based on Octree to realizes dynamic loading of large-scale model data with parts as units.The results show that compared with the traditional direct rendering method,this method can achieve dynamic loading of model data in large-scale model scenarios while retaining the original assembly tree structure with effective control of memory occupancy and an improved scene refresh rate.
作者
周韶泽
李岩
张永辉
于建国
李向伟
兆文忠
ZHOU Shaoze;LI Yan;ZHANG Yonghui;YU Jianguo;LI Xiangwei;ZHAO Wenzhong(School of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian 116028,China;CRRC Qiqihar Railway Rolling Stock CO.,Ltd,Qiqihar 161002,China)
出处
《大连交通大学学报》
CAS
2020年第2期33-37,共5页
Journal of Dalian Jiaotong University
基金
辽宁省自然科学基金资助项目(20170540137)。
