Unity technical manual - particle emission and life cycle velocity sub module

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Premise

This is what Xiao Kong insisted on writing Unity Novice series , Welcome to taste .

Novice （√√√）

bosses （√）
The particle section is a series of articles , And the introduction was very detailed , Suggest Collection .

Practice process

Particle emission （Emission） Sub module

Rate over Time- The number of particles produced per unit time ： How many particles are produced per second

Rate over Distance- Number of particles per unit distance ： Move Position The number of integers per unit , The setting part is not 0 Move the entire particle system to see the effect

Bursts- Burst ： There are five values Time Time -Count Number -Cycles cycle -Interval interval -Probability probability .Time Time indicates how many seconds are delayed after the particle is started Count Number of particles .Count Quantity is the number of particles that explode at a time .Cycles The period indicates whether the explosion is once or infinite , Infinity means direct emission 【Max Particles- Maximum number of particles 】 Number of particles .Interval Intervals indicate when Cycles The period is greater than 1 When , How many seconds does it break out .Probability The probability is 0 to 1 Between the value of the , Indicates the probability of triggering an outbreak event .

All particles are affected by 【Max Particles- Maximum number of particles 】 Property restrictions , Will not exceed the maximum .

Life cycle speed （Velocity over Lifetime） Sub module

Linear X, Y, Z： The particles are in X、Y and Z Linear velocity on the shaft .

Space： Appoint Linear X, Y, Z Whether the axis refers to local space or world space .

Orbital X, Y, Z： Particle surround X、Y and Z The orbital rotation speed of the shaft .

Offset X, Y, Z： Location from track center , Suitable for orbiting particles .

Orbital and Offset The combination can achieve a tornado like effect , without Radial Is a cylindrical rotation with the same radius , If there is Radial It's a conical rotation with a big top and a small bottom , More like a tornado .

Radial： The official translation is that particles are far away from / Radial velocity towards the center , In fact, you can see by setting a value , The farther away from the launch point, the larger the radius , Like a tornado up and down .

Speed Modifier： In the current direction of travel / The velocity of the surrounding particles is multiplied by the value of the attribute .

The above attribute values basically support constant values , Curve change , Numerical range , Hyperbolic interval value .

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author ： Xiaokong and Xiaozhi Xiaokong
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