...
By default, particles are created inside the volume of the attached object and then released. With this parameter it is possible to switch on a continuous particle stream, similar to RealFlow’s standard emitters. To make the emitter create particles with “Stream” turned on, “Initial speed” can even be 0.0. In such a case, the particles’ velocity is a result of the scene’s daemon forces.
Initial speed
--->>
@ speed
This parameter indicates the magnitude of the initial velocity of the fluid and is measured in metres per second [m/s]. The direction of the initial velocity can be controlled by simply rotating the emitter node in the viewport. An arrow in the centre of the emitter’s symbol indicates the direction.
@ angle variation
--->>
@ speed variation
--->>
Surface particle sampling
...