Unity3d粒子系统（中文翻译）

Unity Manual > User Guide > Building Scenes > Particle Systems

Particle Systems（粒子系统）

Particles are essentially 2D images rendered in 3D space. They are primarily used for effects such as smoke,

fire, water droplets, or leaves. A Particle System is made up of three separate Components: Particle

Emitter, Particle Animator, and a Particle Renderer. You can use a Particle Emitter and Renderer together

if you want static particles. The Particle Animator will move particles in different directions and change colors.

You also have access to each individual particle in a particle system via scripting, so you can create your own

unique behaviors that way if you choose.

自己独特的（粒子）行为，如果你选择这样。

请点击这里查看粒子脚本参考。

本页剩余的文字来自于 Particle Component Reference。

Particle Components（粒子的组成）

Particle Systems（粒子系统）

Particle Systems in Unity are used to make clouds of smoke, steam, fire and other atmospheric effects.

Particle Systems work by using one or two Textures & drawing them many times, creating a chaotic effect.

粒子在 Unity 中是用来制造烟雾、蒸汽、火及其它大气的效果。粒子系统通过使用一或两个纹

理并多次绘制它们，以创造一个混沌的效果。

A Particle System included in the Standard Assets

一个粒子系统包含在标准资源包中

幕上。

如果你想让你的粒子对世界有影响，添加一个粒子碰撞器组件到游戏对象中。

Ellipsoid Particle Emitter（椭球粒子发射器）

The Ellipsoid Particle Emitter spawns particles inside a sphere. Use the Ellipsoid property below to scale &

stretch the sphere.

椭球粒子发射器在一个球形范围内产生大量粒子，使用 Ellipsoid 属性来缩放和拉伸范围。

The Ellipsoid Particle Emitter Inspector

椭球粒子发射器的检视视图

Properties（属性）

Emit 发射

If enabled, the emitter will emit particles. 如果启用，发射器将发射粒子

The maximum size each particle can be at the time when it is spawned. 在产生粒子时

每个粒子可以达到的最大尺寸。

Min Energy

最小活力

The minimum lifetime of each particle, measured in seconds. 每个粒子的最短寿命，

以秒为单位。

Max Energy

最大活力

The maximum lifetime of each particle, measured in seconds. 每个粒子的最长寿

命，以秒为单位。

The maximum number of particles that will be spawned every second. 每秒会产生的

粒子的最大数目。

World Velocity

世界速度

The starting speed of particles in world space, along X, Y, and Z. 在世界空间中粒子

的初始速度，沿 X，Y 和 Z 轴方向。

Local Velocity

相对速度

The starting speed of particles along X, Y, and Z, measured in the object's orientation.

粒子沿 X，Y 和 Z 轴方向的初始速度，以对象的定向为测量基准（意思就是

粒子以某个对象为参照的相对速度）

发射器速度比例

The amount of the emitter's speed that the particles inherit. 粒子继承的发射器速度

的总和

Tangent Velocity

切线速度

The starting speed of particles along X, Y, and Z, across the Emitter's surface. 粒子沿

X，Y 和 Z 跨越发射器表面的初始速度

Simulate In World

Space

模拟世界空间

If enabled, the particles don't move when the emitter moves. If false, when you move

流。

Ellipsoid

椭球

Scale of the sphere along X, Y, and Z that the particles are spawned inside. 沿 X，Y

和 Z 产生粒子的球形范围

MinEmitterRange

最小发射器范围

Determines an empty area in the center of the sphere - use this to make particles

Details（细节）

Ellipsoid Particle Emitters (EPEs) are the basic emitter, and are included when you choose to add a Particle

System to your scene from Components->Particles->Particle System. You can define the boundaries for

the particles to be spawned, and give the particles an initial velocity. From here, use the Particle Animator to

behave correctly. When particles are being emitted, all different velocities are added together to create the

final velocity.

速度。

Spawning Properties（属性）

Spawning properties like Size, Energy, Emission, and Velocity will give your particle system distinct

personality when trying to achieve different effects. Having a small Size could simulate fireflies or stars in the

sky. A large Size could simulate dust clouds in a musky old building.

your particles blow away.

Simulate in World Space（模拟世界空间）

If this is disabled, the position of each individual particle will always translate relative to the Position of the

emitter. When the emitter moves, the particles will move along with it. If you have Simulate in World Space

enabled, particles will not be affected by the translation of the emitter. For example, if you have a fireball that

is spurting flames that rise, the flames will be spawned and float up in space as the fireball gets further away.

If Simulate in World Space is disabled, those same flames will move across the screen along with the

fireball.

If this property is set to 1, the particles will inherit the exact translation of the emitter at the time they are

spawned. If it is set to 2, the particles will inherit double the emitter's translation when they are spawned. 3 is

triple the translation, etc.

One Shot（单次发射）

One Shot emitters will create all particles within the Emission property all at once, and cease to emit particles

over time. Here are some examples of different particle system uses with One Shot Enabled or Disabled: