Real-time Simulation For The 3D-dressing Of Any Cloth And Body Based On OpenGL

With the rapid development of Internet technology, online shopping has become a trend. Although it brings many advantages, such as convenience, optional types of goods, there are still many shortcomings, particularly in the aspect of the lack of user experience that the user can not try the merchandise before buying it. This shortcoming makes the study of virtual fitting system get much earning attention of domestic and foreign research workers.Early studies mainly carried out mechanical collision simulation on simple cloth,or dressed the simple clothes to on several body models. These methods all have certain limitations, always difficult to balance flexibility, realism, real-time and integrity. In order to break through this limitation, this paper presents a goal of matching arbitrary body and arbitrary clothes, then research and implement it.In this paper, the deformable body formed by NURBS surface and the 3dmax cloth model are adopted to be the two source data of the body and cloth, in order to achieve the requirements of the proposed arbitrary body and clothes. In the specific application scenarios in the paper, a new simulation process is designed. First, the non-uniform rational B-spline(NURBS) surface is used to finish automatically deformable body modeling. Second, complete the physical modeling of any clothes by remodeling the particle for the 3dmax cloth model and adding various types spring. Then, the Verlet integration is used to complete the fitting simulation. At the same time, this paper achieves new algorithms of model simplification and determining the interior point in a triangle. Finally, through a special data structure, set some statue information, such as the direction and angle of movement of body parts, and achieve some fast dynamic effects about motive person and cloth by the simple way of rotation.In a nutshell, the program designed by this paper has the advantage of the following three aspects. First, it is easy to obtain the bodies having different forms and postures by adjusting the nurbs surface parameters. At the same time, the way of getting the cloth model ensures the diversity of fitting effect. Second, the algorithms of the cloth model simplification and the interior point judgment can increase the simulation performance about 30 percent to ensure the real-time. And third, the paper preliminary study the problem that is very close to the reality, in which how the cloth drive when a person move, with better research and application prospects.