Help problem of particle position

[josemendez]

Hi，it ‘s me
Is the particle's world position are calculated by   rope.gameObject.transform?
Because I use particleAttachment connect a particle group to the rope self, i move rope's position to move particles

set like this:

Code:

rope.GetComponents<ObiParticleAttachment>()[0].target = rope.gameObject.transform;
rope.GetComponents<ObiParticleAttachment>()[0].particleGroup = blueprint.groups[0];

move like this:

Code:

Vector3 to_new_position = new Vector3(0.0f, 0.0f, 1.0f);
rope.gameObject.transform.Translate(to_new_position, Space.World);

Particles are simulated in solver space. To convert to world-space, they're transformed using the solver's transform.

When you attach a particle to a target transform, the particle position at the time of setting the attachment's target/particleGroup is stored expressed in the target's local space. At runtime, this target-space position is converted to solver space and used to set the particle's position. Hope this makes sense!