sand-MPM

A taichi implementation of Drucker-Prager sand simulation using MLS-MPM. References:

• (SIGGRAPH 2016) Drucker-Prager Elastoplasticity for Sand Animation

with two volume correction methods featured in:

• (SIGGRAPH 2017) Multi-Species Simulation of Porous Sand and Water Mixtures
• (SIGGRAPH 2018) Animating Fluid Sediment Mixture in Particle-Laden Flows

Add an implementation of CPIC to handle two-way coupling with rigid body (only in 2D). Reference:

• (SIGGRAPH 2018) A Moving Least Squares Material Point Method with Displacement Discontinuity and Two-Way Rigid Body Coupling

Usage

• Directly run the python file
• Change dim in the code to change dimension
• Change write_to_disk to determine whether write to disk (for exportation)
• When in 3D, hold RMB to change perspective, then use W, A, S, D, E, Q to move
• Directly exit by Ctrl-C