Projective Dynamics

Building

mkdir build
cd build
cmake ..
make all

./pd_mesh

Setting up the simulation

The simulation parameters are set in src/main.cpp. The fields of the params struct should be mostly self-explanatory. sim_objs should be a vector of

struct sim_obj {
    int type; // 0: cube, 1: icosahedron
    Eigen::Vector3d pos;
    double scale;
    double edge_weight;
    double nodal_mass;
    Eigen::Vector3d color; // R G B (0 to 1)
};

If params.make_taut is true, the mesh positions are scaled by taut_constant to simulate the mesh being stretched. pos_constraint_mode defines where positional constraints are applied to the mesh and can take the following values:

0: one edge
1: two (opposite) edges
2: all four edges
3: every vertex