obi shape

[josemendez]

There is also a problem: how to make the rope softer, my rope looks hard, like wire
the first is which I used 4.1 before, the other one is 6.4

Can't know for sure without comparing your settings in both versions. My guess would be you should reduce the amount of substeps/iterations, you will find the substeps parameter in the ObiFixedUpdater component, and iterations in the ObiSolver component. These control overall simulation quality and maximum stiffness/hardness reachable by the solver.

See the manual for a very in-depth explanation of how the engine works internally and how substeps and iterations affect the results:
http://obi.virtualmethodstudio.com/manua...gence.html

kind regards,