Under Speed, you can configure animations for which speed is made to vary versus the initial velocity a time of particle emission.
This page describes Speed settings and features.
To read about the common features Enable and Copy Resource, see here.
A | Add initial velocity. | Use the pull-down menu to add and configure the initial velocity when a particle is emitted and the emission method. For the emission method, choose either Spread out from y-axis, Spread out from origin, Random direction, Specified direction or Specified random direction. |
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B | Randomize results | Randomly change the particle emission speed (initial velocity). |
C | Add animation | From the pull-down menu you can add and configure animations that will change relative to the particle speed after particles have been emitted. For the animation, select either Accelerate/decelerate, Gravity (accelerate in specific direction), or Random (speed). |
Use this to add a setting for initial velocity.
You can add any of the four following particle emission methods.
Item | Description |
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Spread Out from Y Axis | Causes particles to spread out horizontally outwardly from the central (Y) axis of the particle emitter. |
Spread Out from Origin | Causes particles to spread out from the emitter origin. |
Random Direction | Varies the direction and initial speed of a particle at the time of emission. |
Specified Direction | Specifies the initial direction and speed of a particle at the time of emission. |
Specified Random Direction | Specifies the initial direction and speed of a particle at the time of emission and also spreads the particles out in an elliptical shape. |
Causes particles to spread out horizontally outwardly from the central (Y) axis of the particle emitter.
Deletes diffuse settings from the Y axis.
Specifies the speed at which particles spread out from the Y axis.
To read about the Enable checkbox and resource copying, see here.
You can make particles spread out from the emitter origin.
Deletes diffuse settings from the origin.
Specifies the speed at which particles spread out from the origin.
To read about the Enable checkbox and resource copying, see here.
You can change the direction and initial speed of a particle at the time of emission.
Deletes the random direction setting.
Specifies the random direction initial speed setting.
To read about the Enable checkbox and resource copying, see here.
Specifies the initial direction and speed of a particle at the time of emission.
Deletes the specified direction setting.
Specifies the direction of motion at time of particle emission for each of the X, Y and Z axes.
Specifies the speed for the specified direction.
To read about the Enable checkbox and resource copying, see here.
Use this to specify the initial direction and speed of a particle at the time of emission and to randomize the angle at which the particle emits.
Deletes the setting for Specified Random Direction.
Specifies the direction of motion at time of particle emission for each of the X, Y and Z axes.
Specifies the speed for the specified direction.
Use this to set any value between 0 and 360 for the angle of the particle when it emits.
The emission angle is randomized within the range of this set angle.
To read about the Enable checkbox and resource copying, see here.
Under Speed, you can configure animations for which speed is made to vary versus the initial velocity a time of particle emission.
You can add any of the following three items for animations:
Item | Description |
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Acceleration/Deceleration | Allows you to accelerate or decelerate particles by multiplying a specified value times the particle speed. |
Gravity (accelerate in specified direction) | Allows you to apply gravity by adding to the speed in a specified direction for a particle. |
Randomness (velocity) | Allows you to apply a random force in the specified direction to the particle speed. |
You can cause particles to speed up or slow down.
Deletes the Accelerate/decelerate setting.
Specifies the value by which particle speeds are multiplied every frame. Practical values range from 0.9 to 1.1, but you can also use values beyond this range.
To read about the Enable checkbox and resource copying, see here.
You can cause a particle to move in the specified direction with inertia in a realistic manner.
Deletes the Gravity (accelerate in specified direction) setting.
Specifies the direction in which the particle moves in terms of X, Y, and Z values. Valid values range between -1 and 1.
Specifies the value to increase particle speed each frame.
To read about the Enable checkbox and resource copying, see here.
You can make each particle gradually speed up.
Deletes the Random (speed) setting.
Specifies the value added to the particle's speed.
Specifies the interval for adding values to the particle's speed, as a number of frames.
To read about the Enable checkbox and resource copying, see here.
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