多圈高簇绒地毯外观的三维仿真  

Three-dimensional simulation of multiple high-low loop tufting carpet

作　　者：韩冲[1] 孟婥[1] 陈广锋[1] 孙以泽[1] 

机构地区：[1]东华大学机械学院,上海201620

出　　处：《纺织学报》2009年第9期127-132,共6页Journal of Textile Research

基　　金：国家自然科学基金资助项目(50775033)

摘　　要：介绍了在Direct3D环境下实现多圈高簇绒地毯外观三维模拟的具体步骤。分析单个绒圈的空间结构,并在3DS MAX中采用NURBS曲线建模。在Direct3D中采用点光源和平行光相结合的光照模型以及利用纹理映射技术生成纱线的细节。对地毯绒圈间的挤压变形和高低圈的遮挡关系在Direct3D中采用近似的物理仿真。与真实的地毯图案对比,模拟图能够反映出由于高低圈变化而形成的地毯图案,模拟从不同角度观察的效果并得到了具有真实感的地毯图案。该系统可作为单独的仿真模块嵌入到地毯花型设计软件中。imulation process of tufted carpet′s appearance based on Direct3D is introduced.Analyzing the space structure,the NURBS curve modeling is applied.The lighting model combining the point light and parallel light is adopted in the environment of Direct3D and the texture mapping technology is applied in order to simulate the appearance of the yarn.The compressive deformation of loop pile and the occultation between high and low loop pile have been considered by using the semi-physics simulation.As contrasting to the tufting carpet,the 3-D image could reflect the pattern resulting from the change of high and low piles,and image with realistic sense can be observed from different points of view.The three-dimensional simulation of multiple high-low loop carpet based on Direct3D is both feasible and effective.The simulation system can be embedded as an individual simulation module in the carpet design software.

关 键 词：纺织CAD 织物仿真 三维模拟 簇绒地毯 纱线建模 DIRECT3D 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]