Access the particle system force over lifetime module.
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 fo = ps.forceOverLifetime; fo.enabled = true;
AnimationCurve curve = new AnimationCurve(); curve.AddKey(0.0f, 0.1f); curve.AddKey(0.75f, 1.0f); fo.x = new ParticleSystem.MinMaxCurve(1.5f, curve); } }
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