Emission 模块

The properties in this module affect the rate and timing of Particle System emissions.

Using the Emission 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 Emission module to the Particle System. By default, Unity enables 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 Emission 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 Emission 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.

详细信息

根据曲线，发射速率可以是恒定的，也可以在系统的生命周期内变化。如果激活 Rate over Distance 模式，则父对象移动的每个距离单位将释放一定数量的粒子。此模式对于模拟实际由对象运动产生的粒子非常有用（例如，泥路上车轮留下的尘土）。

如果激活 Rate over Time 模式，则无论父对象如何移动，每秒都会发射所需数量的粒子。此外，还可添加在特定时间出现的额外粒子爆发（例如，蒸汽火车烟囱产生一股股的烟雾）。

• 2018–10–19 页面已修订

• 在 Unity 2018.3 中向 Particle System Emission 模块添加了爆发概率 NewIn20183