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ParticleSystem.MainModule.startLifetime

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public ParticleSystem.MinMaxCurve startLifetime;

Description

The total lifetime in seconds that each new particle has.

This value is set on the particle when the Particle System creates it. Assign a value of float.PositiveInfinity to particles to prevent the Particle System from destroying them. This gives the particles an infinite lifespan. Additional resources: MinMaxCurve.

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(ParticleSystem))] public class ExampleClass : MonoBehaviour { private ParticleSystem ps; public float hSliderValue = 1.0F;

void Start() { ps = GetComponent<ParticleSystem>(); }

void Update() { var main = ps.main; main.startLifetime = hSliderValue; }

void OnGUI() { hSliderValue = GUI.HorizontalSlider(new Rect(25, 45, 100, 30), hSliderValue, 0.0F, 5.0F); } }