VisualEffect.SendEvent

public void SendEvent (int eventNameID);

public void SendEvent (string eventName);

public void SendEvent (int eventNameID, VFX.VFXEventAttribute eventAttribute);

public void SendEvent (string eventName, VFX.VFXEventAttribute eventAttribute);

Parameters

eventName	The name of the event.
eventNameID	The ID of the event. This is the same ID that Shader.PropertyToID returns.
eventAttribute	Can be null or a VFXEventAttribute. To create a VFXEventAttribute, use VisualEffect.CreateVFXEventAttribute.

Use this method to send a custom named event.