Accelerated complex-step finite difference for expedient deformable simulation

Ran Luo, Weiwei Xu, Tianjia Shao, Hongyi Xu, Yin Yang In deformable simulation, an important computing task is to calculate the gradient and derivative of the strain energy function in order to infer the corresponding internal force and tangent stiffness matrix. The standard numerical routine is the finite difference method, which evaluates the target function […]

Video-Guided Real-to-Virtual Parameter Transfer for Viscous Fluids

Tetsuya Takahashi, Ming C. Lin In physically-based simulation, it is essential to choose appropriate material parameters to generate desirable simulation results. In many cases, however, choosing appropriate material parameters is very challenging, and often tedious trial-and-error parameter tuning steps are inevitable. In this paper, we propose a real-to-virtual parameter transfer framework that identifies material parameters […]