For Deformable Physical Model Of The Virtual Display Of The Object Studied

This paper is preluded by summarizing the modeling methods, key techniques in VR (Virtual Reality). Based on that, textiles are chosen as the research objects for the reason that previously, because textile distortion mechanism was not introduced, the 3D coordinates on the surface of textiles could not be formalized in accordance with their physical rule. Naturally, there was an absence of realism and generality and the movement of textile cannot be simulated under any given forces applied such as rippling in the wind in virtual textile demonstrating.To solve the problem, the textile distortion mechanism is introduced and the textile is pertinently modeled which succeeds in achieving the satisfactory effects. Specifically, first the textile is discretized and then the improved mass-spring model is introduced and the texture coordinates are specified for the critical points on the textile. After that, the 3D positions of these critical points are computed while the other points are interpolated using NURBS surface. Thus, the shape of the textile at a given time is obtained. And finally, the moving effects of the textile under any given forces applied are achieved by repeatedly showing the shapes of the textile at regular intervals, say 40 ms. The article is concluded by exemplifying the rippling effects of the curtain.Of course, there're still some works to do. For instance, if we expand the system and use it in virtual clothing demonstrating, collision detection must be introduced but it is extremely time-consuming. So how to find an effective collision detection algorithm is a major job in the ensuing years. In addition, something looks not quite real in curtain presentation, which may be solved by introducing imperfect elastic model.