Bodies going airborn on spring platforms

EulalieCoevoet / AdaptiveMerging

With adaptive merging we reduce computation time in rigid body simulations.

https://eulaliecoevoet.github.io/AdaptiveMerging/

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Bodies going airborn on spring platforms #18

Closed paulkry closed 4 years ago

paulkry commented 5 years ago

mobile.png and simple7.png show examples where a stack of a few blocks lands on a springy platform. The platform bobs up and down, and perhaps it does achieve near weightlessness at the top of the trajectory, but the springs drawn suggest that the bottom block has never stopped receiving an upward force. Is the behavior correct? Might be based on the symplectic integration and the starting state given no global viscous damping! Worth a closer look.

paulkry commented 4 years ago

I can't remember what this bug was... but it was most definitely fixed! I think it was some weird spring code that had a dead zone for zero length springs?? Anyway! Not going to pollute the open issues list anymore!