ParticleSystem.Particle.startLifetime

描述

粒子的初始生命周期。

这是该粒子在秒的总生命周期。当粒子系统第一次产生出粒子时，它设定此值。

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        ParticleSystem.Particle particle = new ParticleSystem.Particle();

        // Calculate how long the particle has been alive.
        float timeAlive = particle.startLifetime - particle.lifetime;
    }
}