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Help  Knot in suturing simulator
(28-03-2022, 11:04 AM)manurocker95 Wrote: I would like to achieve something like this: 


The thing is what would be the best approach to know when the particles are passing through the "skin" so I can pull from it without the particles being crazy


To do this you would need to implement your own "suture" constraint, to keep the particles in place when they pass trough the skin and achieve two-way coupling between the skin and the suturing thread.

In this particular video, it would seem the skin is using tetrahedral FEM for its simulation. So constraining a list of particles to always pass trough a given generalized barycentric coordinate in a tetrahedron would be the best approach. This is something you must implement yourself, as it is far beyond Obi's intended use and scope.