function GetProceduralVector (inputName : String) : Vector4
Description描述
Get a named Procedural vector property.
获取一个命名的程序向量属性。
Used for Procedural properties of types Vector2, Vector3, and Vector4.
用于Vector2, Vector3, 和 Vector4类型的程序属性。
参见：GetProceduralPropertyDescriptions, SetProceduralVector.
