一种柔软柱状模型的弯曲变形方法

doi:10.16182/j.cnki.joss.2015.06.015

系统仿真学报 ›› 2015, Vol. 27 ›› Issue (6): 1255-1261.doi: 10.16182/j.cnki.joss.2015.06.015

一种柔软柱状模型的弯曲变形方法

陈红倩¹, 方艺¹, 杨倩玉¹, 李凤霞², 陈谊¹

1.北京工商大学计算机与信息工程学院,北京 10048;
2.北京理工大学智能信息技术北京市重点实验室,北京 10081

收稿日期:2014-05-31 修回日期:2014-07-11 出版日期:2015-06-08 发布日期:2021-01-15
作者简介:陈红情(1982-),男,山东人,博士,副教授,研究方向为虚拟现实与可视分析; 李风霞(1953-),女,山西人。教授。研究方向为虚拟现实与视景仿真。
基金资助:
十二五国家科技支撑计划项目(2012BAD29801-2); 北京市自然基金(4154060); 北京市教委科技计划面上项目(PXM2014_014213_000004)

Local Deformation Method for Soft Cylindrical Model

Chen Hongqian¹, Fang Yi¹, Yang Qianyu¹, Li Fengxia², Chen Yi¹

1. Bejing Technology and Business University, Beijing 00048, China;
2. Beijing Laboratory of Inelligant Infomation Technology, Beijing Institute of Technology, Bejing 100081, China

Received:2014-05-31 Revised:2014-07-11 Online:2015-06-08 Published:2021-01-15

摘要/Abstract

摘要： 针对柔软柱状物体模型的弯曲变形,提出了一种能够实现细节保持与表面积保持的弯曲变形方法。该方法将柱状模型以及近似柱状模型提取其底面积、高度、弯曲形状等形状属性;建立柱体规则网格作为基础模型,通过径向计算获取细节模型,通过细节模型分离降低模型变形计算复杂度; 使用阻尼曲线模拟柔软柱状物体弯曲内侧表面皱褶并实现表面积保持;最终通过细节模型合并,实现细节保持的弯曲变形。实验证明,本方法能够有效仿真柔软柱状物体模型的弯曲变形,并仿真物体表面皱褶特征,对于10,000顶点内的3D模型,可达到30FPS的变形渲染帧速率。

关键词: 模型变形, 弯曲皱褶, 细节保持, 表面积保持

Abstract: To simulate the bending effect for the soft cylindrical objects in realtime, a deformation method was proposed that could achieve the detiail-preservation and surface area-preservation. The method obtained the shape properties such as the bottom and the height from the original cylindrical model. The base model consisted of the regular mesh was built according to the shape properties. The detail model could be obtained by the raidus function of separating from the base model. The uniform deformation algorithm for the base model was adopted to decrease the complexity of the processing. The damping oscillation curve was employed t0 simulate the gofferes indwelling in the inner warping side of the soft cylindrical model. The surface area-preservation could be achieved due to the gofferes. The method has been proved feasible and valid to simulate the bending deformation for 3D soft object by the experiments. It can deform the model containing thousands of vertices in 30 FPS.

Key words: model deformation, bending goffer, detail-preservation, surface area-preservation

中图分类号:

TP391.9

陈红倩, 方艺, 杨倩玉, 李凤霞, 陈谊. 一种柔软柱状模型的弯曲变形方法[J]. 系统仿真学报, 2015, 27(6): 1255-1261.

Chen Hongqian, Fang Yi, Yang Qianyu, Li Fengxia, Chen Yi. Local Deformation Method for Soft Cylindrical Model[J]. Journal of System Simulation, 2015, 27(6): 1255-1261.

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一种柔软柱状模型的弯曲变形方法

Local Deformation Method for Soft Cylindrical Model

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