VR环境下应用于三维虚拟建模的复杂艺术场景优化技术  

Complex Art Scene Optimization Technology Applied to 3D Virtual Modeling in VR Environment

作　　者：胡博 陈锋[2] 刘敏[3] HU Bo;CHEN Feng;LIU Min(Tianhe College of Guangdong Polytechnic Normal University,Guangzhou 510540,China;Fuzhou Institute of Science and Technology Information,Fuzhou 350014,China;Department of Computer,China West Normal University,Nanchong 637009,China)

机构地区：[1]广东技术师范大学天河学院,广州510540 [2]福州市科学技术情报研究所,福州350014 [3]西华师范大学计算机学院,四川南充637009

出　　处：《重庆理工大学学报（自然科学）》2019年第10期115-120,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：广东省本科高校教学质量与教学改革工程项目(2017SJG04);2014年度广东省教育厅普通高校省级重点平台和重大科研项目(2014KQNCX250)

摘　　要：针对虚拟现实系统的复杂艺术场景绘制问题,提出了一种结合多项优化技术的环境建模及加速处理方法。首先,采用半边折叠算法对复杂三维几何模型进行简化处理,减少了计算开销,提高了模型渲染的效率。然后,在复杂场景的细节层次绘制过程中,增加了选择细节层次的预处理阶段,通过投影值计算为每帧的场景区域选择合适的细节层次视差度量系数,加快了实时计算速度。仿真实验结果表明:相比其他模型优化方法,提出的优化方法在帧速率变化和执行时间方面均表现出更好的性能。Aiming at the problem of complex art scene rendering of virtual reality system,an environment modeling and acceleration processing method combining multiple optimization techniques is proposed.Firstly,the half-edge folding algorithm is used to simplify the complex 3D geometric model,which reduces the computational overhead and improves the efficiency of model rendering.Then,in the process of drawing the level of detail in the complex scene,a preprocessing stage of selecting the level of detail is added,and the appropriate detail level disparity measure coefficient is selected for the scene area of each frame by the projection value calculation,which speeds up the real-time calculation speed.The simulation results show that compared with other model optimization methods,the proposed optimization method shows better performance in terms of frame rate variation and execution time.

关 键 词：虚拟现实 边折叠算法 三维几何模型 艺术场景渲染 细节层次绘制 实时绘制 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]