Help Custom Force to Match Object

[josemendez]

Now externalForces appears to be acting in local space rather than world space. I must make the vector adjustments manually to convert to world space forces. No big deal

You're welcome!

Yes, all particle data is expressed in the solver's local space, since simulation is also performed in local space. See:
http://obi.virtualmethodstudio.com/manua...icles.html

Each ObiSolver has an array for each one of these properties, that stores the current data for all particles in use by any actor managed by the solver. All spatial properties (positions, orientations, velocities, vorticities, etc) are expressed in the solver's local space.