Cloth Simulation Based On Multistep Numerical Method

Nearer in the last years, take computer as the 3D animation, Virtual Reality and the clothing CAD of the tool to get a substantial development along with the computer technique high speed development. But these fields all have a common research crux, which is the cloth simulation with computer. In the 3D animation and the Virtual Reality, everywhere all it is thus clear that arrive to have the thing that the cloth constitute, Take cloth as a main research object more in the clothing CAD. So cloth simulation became more and more a hotspot in the Computer Graphics field. The existing cloth simulation also can hardly attain the request of real time, so this text put forward a method that can raise the simulation efficiency in certain accuracy.For realistically simulating various physical characteristic of cloth, editor chose the spring-particle model of physical model, base on comparing several cloths modeling method. This model considered effect of draw-stretch, cut and bend force to cloth show, enhanced third dimension of simulation. Analysis the internal and external forces on this model, found dynamics formulation. The speed of solving these formulations in computer is relation to real time of simulation system directly, so it is necessary to use a quick and steady numerical method. The author put forward a implicit-explicit numerical differentiation method after compare existing numerical differentiation methods. This method is a new assemble usage according to practice of cloth simulation. Finally, for identifying the feasibility of the method, write a cloth simulation program. The system still includes use for the object that examines a collision, displaying the dynamic state result of the cloth simulation better.This physical model and the numerical differentiation method raised the efficiency of the cloth simulation system nicely, making it have the real-time and true feeling more.