ParticleSystem.Particle.startLifetime

説明

パーティクルの最初の寿命

This is the total lifetime of this particle in seconds. The Particle System sets this value when it first spawns the particle.

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;
    }
}