Incremental Potential Contact (IPC) is a C++ reference implementation of the SIGGRAPH 2020 paper. It provides a robust method for simulating nonlinear elastodynamics, focusing on accuracy and stability. IPC addresses the challenges of large deformation dynamics by guaranteeing intersection- and inversion-free trajectories across varying time steps, materials, and deformations. The core of IPC is its incremental potential approach, which avoids the need for complex time-stepping schemes.
IPC distinguishes itself through its robust handling of contact, particularly in scenarios involving complex geometries and large deformations. The implementation prioritizes numerical stability and accuracy, offering detailed diagnostics and debugging tools. Its clear separation of concerns and extensibility through customizable linear solvers make it adaptable to diverse simulation needs.
- Core Functionality: Simulates nonlinear elastodynamics with guaranteed intersection- and inversion-free trajectories.
- Supported Platforms: Primarily designed for desktop and HPC environments; includes support for offline mode.
- Configuration: Highly configurable via CMake options and input data to control material properties, boundary conditions, and solver parameters.
- Performance: Optimized for performance through parallel processing and support for various linear solvers, including CHOLMOD.
- Developer Experience: Well-documented with a
quick start guide, CMake build system, and support for sub-projects (diagnostics, mesh processing).
The project is a stable reference implementation based on SIGGRAPH 2020 research, with regular updates and bug fixes. Active development focuses on improving performance and adding features. The documentation, while comprehensive, can benefit from further expansion. A supportive community is available through Github issues and discussions.
IPC benefits researchers and engineers working on simulations involving deformable materials. It is ideal for applications such as computer animation, physical simulations, and structural mechanics. IPC offers a reliable and accurate solution for large deformation dynamics, providing a valuable alternative to simpler or less robust methods.