Implicit-Explicit Schemes for Fast Animation with Particle Systems

Particle systems have been widely employed to animate deformable objects. In order to achieve real time capable systems often simplifications have been made to reduce the computational costs for solving the ODE at the expense of numerical and physical correctness. Implicit-Explicit (IMEX) methods provide a way to solve partly stiff systems efficiently, if the system meets some requirements. These methods allow the solution of the differential equation for particle systems to be computed both correctly and very quickly. Here we use an IMEX method to simulate draping textiles. In particular, our approach does not require any postcorrection and works for very stiff materials.