Lily Wilson

For a general mesh that is 3D, what I have learned in my homework help in Canada is that the mass can be calculated by dividing vol with density of the shape, but I have no clue how does it work when the simulation run is in play. I guess nobody here has the answer to it either since its been so long and the thread remains empty. I am curious about it though, may be I will ask this question to my professor sometime.