Velocity Overtime Module
The velocity module is used to control the velocity of the particles during their life cycle.
Properties
| Property | Description |
|---|---|
| Space | When selecting particles for speed calculation, it is based on World coordinate system (World) or Local coordinate system (Local) (Custom is currently not supported) |
| X | Velocity component in the X-axis direction |
| Y | Velocity component in the Y-axis direction |
| Z | Velocity component in the Z-axis direction |
| SpeedModifier | Speed modifier, only supports CPU particles. It does not take effect when the UseGPU property is checked in Particle Renderer |
Some properties have a 
button, you can click it to edit the curve of the property, please refer to Curve Editor.