Unity 喷烟喷气特效：喷快消失慢

快速喷气缓慢消失同时播放3*3序列帧动画。常用在火车烟囱特效、气体释放、摔倒、等效果中，可变种应用场景较多。

下列为Particle System参数：

 Color over Lifetime参数：

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