(14-11-2022, 03:50 PM)michele_lf Wrote: Hello!

I am trying to simulate drag being applied to a moving softbody.

I am applying a force to the ObiActor using ObiActor.AddForce(force, ForceMode.Impulse) and I would like to see the same drag effect I can apply to a standard rigidbody in unity.

I tried adding an obi rigidbody component and increase the drag on the unity rigidbody but it seems to be disconnected from the ObiActor. If I apply the force to the unity rigidbody would that work with the softbody?

What is the best way of achieving this?

Many thanks!

(14-11-2022, 04:36 PM)josemendez Wrote: Hi,

Rigidbodies and softbodies are completely unrelated to each other, drag applied to one of them won't affect the other.

Obi has a built-in atmospheric drag simulation, that can be enabled per solver. To enable it increase the solver's "damping" parameter to a non-zero value:
http://obi.virtualmethodstudio.com/manual/6.3/obisolver.html

If you want to implement your own advanced damping/drag system, you can also do so by using the particles API and adding your own external forces to each particle. See:
http://obi.virtualmethodstudio.com/manual/6.3/scriptingparticles.html

kind regards,