Lifetime by Emitter Speed module

该模块根据粒子生成时发射器的速度控制每个粒子的初始生命周期。它将粒子的初始生命周期乘以一个值，该值取决于产生它们的对象的速度。对于大多数粒子系统，此为游戏对象速度，但对于子发射器，速度来自子发射器粒子所源自的父粒子。

Using the Lifetime by Emitter Speed module

This module is part of the Particle System component. When you create a new Particle System GameObject, or add a Particle System component to an exiting GameObject, Unity adds the Lifetime by Emitter Speed module to the Particle System. By default, Unity disables this module. To create a new Particle System and enable this module:

1. Click GameObject > Effects > Particle System.
2. In the Inspector, find the Particle System component.
3. In the Particle System component, find the Lifetime by Emitter Speed module fold-out.
4. To the left of the fold-out header, enable the checkbox.

API

Since this module is part of the Particle System component, you access it through the ParticleSystem class. For information on how to access it and change values at runtime, see the Lifetime by Emitter Speed module API documentation.

属性

For some properties in this section, you can use different modes to set their value. For information on the modes you can use, see Varying properties over time.