This version of Unity is unsupported.

VisualEffect.SetVector3

public void SetVector3(int nameID, Vector3 v);
public void SetVector3(string name, Vector3 v);

Parameters

nameID The ID of the property. This is the same ID that Shader.PropertyToID returns.
name The name of the property.
v The new Vector3 value.

Description

The new Vector3 value.

Automatically changes overridden state for this property to true.