Velocity over Lifetime 模块

Velocity over Lifetime 模块可控制粒子在其生命周期内的速度。

Using the Velocity over Lifetime 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 Velocity over Lifetime 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 Velocity over Lifetime 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 Velocity over Lifetime 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

要创建在特定方向上漂移的粒子，请使用 Linear X、Y 和 Z 曲线。

要创建围绕中心位置旋转的粒子效果，请使用 Orbital 速度值。此外，可使用 Radial 速度值推动粒子朝向或远离中心位置。您可以使用 Offset 值为每个粒子定义自定义的旋转中心。

还可以使用此模块调整粒子系统中的粒子速度，而不影响粒子的方向，方法是将所有上述值保留为零，仅修改 Speed Modifier 值。

• 2018–03–28 页面已修订

• 在 2017.3 版中向 Velocity over Lifetime 模块添加了 Speed Modifier 属性 NewIn20173

• 在 2018.1 版中向 Velocity over Lifetime 模块添加了 Orbital XYZ、Offset XYZ 和 Radial 属性 NewIn20181