头戴设备VR环境下光滑加权等距面交互建模

doi:10.16182/j.issn1004731x.joss.201807004

系统仿真学报 ›› 2018, Vol. 30 ›› Issue (7): 2459-2464.doi: 10.16182/j.issn1004731x.joss.201807004

头戴设备VR环境下光滑加权等距面交互建模

朱晓强^1,2, 潘虹艺^1,2, 徐浩^1,2, 宋磊^1,2, 朱梦尧^1,2, 王向阳^1,2

1. 上海大学通信与信息工程学院,上海 200444;
2. 上海大学智慧城市研究院,上海 200444

收稿日期:2017-07-30 出版日期:2018-07-10 发布日期:2019-01-08
作者简介:朱晓强(1984-),男,安徽阜阳,博士,讲师,研究方向为计算机图形学、虚拟现实。
基金资助:
国家自然科学基金(61402277,61373084),上海市教委科研创新项目(15ZZ044),浙江大学 CAD&CG国家重点实验室开放课题(A1507)

Interactive Modelling on Smooth Weighted Distance Surface in HMD VR Environment

Zhu Xiaoqiang^1,2, Pan Hongyi^1,2, Xu Hao^1,2, Song Lei^1,2, Zhu Mengyao^1,2, Wang Xiangyang^1,2

1. School of Communication and Information, Shanghai University, Shanghai 200444, China;
2. Institute of Smart City, Shanghai University, Shanghai 200444, China

Received:2017-07-30 Online:2018-07-10 Published:2019-01-08

摘要/Abstract

摘要： 给出一种在头戴设备VR环境中交互式建模机制,通过头戴式VR设备手柄可输入点、线、面基本骨架,对于给定的可变半径信息,在GPU上采用CUDA(Compute Unified Device Architecture)并行计算带权重的距离场,并进一步采用并行Marching Cubes方法提取等距面。为避免多骨架等距面交接处的不光滑性,本建模系统采用加权滤波核函数根据骨架半径对距离场自适应光顺处理,从而生成基于骨架的多组件光滑混合模型。系统所提供交互方式自然,适合非专业人员的快速建模需求,并且所生成模型具有二维流形表面特征,可直接用于三维打印。

关键词: 等距面, 隐式曲面, 虚拟现实, 头戴设备, 人机交互

Abstract: An interactive modelling scheme in immersive VR environment is proposed, in which the point, line and polygon skeletons are inputted by handles of HMD (Head-Mounted Device). Weighted distance field is calculated in parallel with CUDA on GPU according to the varying radii, and then the iso-surface is extracted using paralleled marching cubes. In order to avoid the non-smoothness at interactions between different distance surface components, weighted filtering kernels are utilized to smooth the skeleton-based distance field with various radii in our modelling system, so that smooth blending model is produced from multi-component distance fields. In our system, natural interactions suitable for non-professionals are provided to create smooth models with manifold surface which can be directly 3D printed without further post-process.

Key words: distance surface, implicit surface, virtual reality, head-mounted device, human-computer interaction

中图分类号:

TP391.41

朱晓强, 潘虹艺, 徐浩, 宋磊, 朱梦尧, 王向阳. 头戴设备VR环境下光滑加权等距面交互建模[J]. 系统仿真学报, 2018, 30(7): 2459-2464.

Zhu Xiaoqiang, Pan Hongyi, Xu Hao, Song Lei, Zhu Mengyao, Wang Xiangyang. Interactive Modelling on Smooth Weighted Distance Surface in HMD VR Environment[J]. Journal of System Simulation, 2018, 30(7): 2459-2464.

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头戴设备VR环境下光滑加权等距面交互建模

Interactive Modelling on Smooth Weighted Distance Surface in HMD VR Environment

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