Hi, YIfei.
I'm tring to add a tie in this simulator and I notice that the simulation results differ greatly as I change params k_stiff_stretching, k_stiff_bending and density in FabricConfiguration (src/code/optimization/OptimizationTaskConfigurations.cpp), which are closely related to the material of cloth.
So, generally, how can I specify the value of these three params when I try to add a new type of cloth?