Limit Velocity over Lifetime module

此模块控制粒子的速度在其生命周期内如何降低。

Using the Limit 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 Limit 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 Limit 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 Limit 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

该模块非常适合用于模拟会减慢粒子速度的空气阻力，特别是在使用下降曲线随时间推移而降低速度限制的情况下。例如，爆炸或烟花最初以极快的速度爆发，但是发射的粒子在穿过空气的过程中会迅速减速。

Drag 选项通过提供基于粒子大小和速度施加不同阻力的选项，提供在物理上更加精确的空气阻力模拟。

• 2017–09–05 页面已修订

• 在 Unity 2017.2 中添加了 Drag、Multiply by Size 和 Multiply by Velocity NewIn20172