粒子系统 (Particle System) 主模块

The Particle System module contains global properties that affect the whole system. Most of these properties control the initial state of newly created particles. The main module is expanded by clicking the white icon button to the right of the inspector window.

The name of the module appears in the inspector as the name of the GameObject that the Particle System component is attached to.

属性

属性详细信息

系统会在特定时间内发射粒子，并可使用 Looped 属性将其设置为连续发射。此设置可让您设置间歇或连续发射粒子；例如，一个对象可能以短暂间隔或以稳定流的形式发射烟雾。

The Start properties (lifetime, speed, size, rotation and color) specify the state of a particle on emission. You can specify a particle’s width, height and depth independently, using the 3D Start Size property (see *Non-uniform particle scalin*g, below).

所有粒子系统都使用 Physics 设置中指定的相同重力矢量。Gravity Multiplier 值可用于缩放重力，或者如果设置为零则将其关闭。

The Simulation Space property determines whether the particles move with the Particle System parent object, a custom object, or independently in the game world. For example, systems like clouds, hoses and flamethrowers will need to be set independently of their parent object, as they tend to leave trails that persist in the world space even if the object producing them moves around. On the other hand, if particles are used to create a spark between two electrodes, the particles should move along with the parent object. For more advanced control over how particles follow their Transform, see documentation on the Inherit Velocity module.

非均匀粒子缩放

3D Start Size 属性允许您独立指定粒子的宽度、高度和深度。在粒子系统__主__模块中，选中 3D Start Size 复选框，然后输入粒子的初始 x（宽度）、y（高度）和 z（深度）的值。请注意，z（深度）仅适用于 3D 网格粒子。此外，还可在两个常量或曲线之间的范围内为这些属性设置随机值。

您可以在粒子系统__主__模块中设置粒子的初始大小，并使用 Size over Lifetime 模块中的 Separate Axes 选项设置粒子在其生命周期内的大小。此外，还可使用 Size by Speed 模块中的 Separate Axes 选项设置粒子的大小与其速度的关系。