摘要
为了提高虚拟现实场景中三维模型的渲染速度,通过对三维模型的结构特征的研究,在分析了三维模型各个子结构对模型整体的真实性的影响权重大小不同,提出了基于结构权重的三维模型结构的动态约简方法。该方法可以通过计算三维模型每个子结构的权重系数,针对不同硬件水平的计算机,根据视点与三维模型结构的距离,动态调节模型子结构的渲染效果,实现模型的快速渲染。通过对该方法进行的测试实验,表明该方法显著提高了三维模型的渲染效率,减少了模型三角面片的渲染数量,降低了系统的内存占有率,保证了模型的真实性。同时经过对比实验,相同距离下,该方法显著提高了虚拟现实场景渲染时的FPS(画面每秒传输帧数)。
In order to improve the rendering speed of 3D models in virtual reality scenes,through the study of the structural characteristics of the three-dimensional model,this paper analyzes the different weights of the substructures of the three-dimensional model on the overall authenticity of the model.Dynamic reduction method for structural weight of 3D model.This method can calculate the weight coefficient of each sub-structure of the three-dimensional model,for computers of different hardware levels,dynamically adjust the rendering effect of the model sub-structure according to the distance between the viewpoint and the three-dimensional model structure,and realize the rapid rendering of the model.The test experiments on this method show that this method significantly improves the rendering efficiency of the 3D model,reduces the number of triangle triangles rendered by the model,reduces the memory occupancy of the system,and ensures the authenticity of the model.At the same time,through comparative experiments,at the same distance,this method significantly improves the FPS when rendering virtual reality scenes.
作者
欧阳会东
吴文江
胡毅
OUYANG Hui-dong;WU Wen-jiang;HU Yi(University of Chinese Academy of Sciences,Beijing 100049,China;Shenyang Institute of Computing Technology,Chinese Academy of Sciences,Shenyang 110168,China;不详)
出处
《组合机床与自动化加工技术》
北大核心
2021年第2期18-21,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
2017年国家智能制造综合标准化项目:数控装备故障信息数据字典标准研制及试验验证(20172150299)。
关键词
三维模型
约简
模型简化
权重
3d model
simplification
model reduction
weight
