Version: 2020.3
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ParticleSystem.externalForces

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public ParticleSystem.ExternalForcesModule externalForces;

Description

Script interface for the ExternalForcesModule of a Particle System.

This module enables ParticleSystemForceField and WindZone components to affect the Particle System.

Particle System modules do not need to be reassigned back to the system; they are interfaces and not independent objects.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { ParticleSystem ps = GetComponent<ParticleSystem>(); var ex = ps.externalForces; ex.enabled = true; ex.multiplier = 0.1f; } }