unity3d - Unity ParticleSystem.Simulate API under world space work wrong

Question

the Particle System is set to simulated in world space, and i manually call simulate function from script, but it works still like in local space , that means the particles are like moving with emitter. i guess the simulate API don't memory the position of emitter ,so it will always simulate from current position , so it still works like local space. has anyone known a solution to make it still work like in world space when manually simulating?

void Update()
{
    ParticleSystem ps = this.particle.GetComponent<ParticleSystem>();

    ParticleSystem.MainModule mainModule = ps[j].main;
    mainModule.simulationSpace = ParticleSystemSimulationSpace.World;

    ps.Stop(false, ParticleSystemStopBehavior.StopEmittingAndClear);
    ps.Play(false);
    ps.Simulate(playbackTime, false, false, true);
}

Answer 1

等待大神答复