(02-11-2018, 07:27 PM)josemendez Wrote: Hi,
Doing exactly what you describe, works fine for me. If the force zone is not in radial mode, make sure the wind is not blowing into/away from the screen in the Z axis (as that would have no effect in 2D). You can rotate it to make sure the wind direction arrow points in the right direction.
So I think misunderstood what ObiSphericalForceZone is used for. If I'm not mistaken, both ObiAmbientForceZone and ObiSphericalForceZone are used for wind simulations, correct? If that's the case, what I should be using is this: Oni.AddParticleExternalForce(solver.OniSolver, ref force, particleIndices, particleIndices.Length) since I am not using wind.