ParticleSystem.Particle.startLifetime

Description

粒子的初始生命周期。

这是此粒子的总生命周期（以秒为单位）。它由粒子系统在创建粒子时设置。

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;
    }
}