using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public static class VectorExtend
{

    public static Vector4 ToVector4(ref this Vector3 v3, float w = 1)
    {
        Vector4 v4 = new Vector4(v3.x, v3.y, v3.z, 1);
        return v4;
    }

    public static Vector3 ToVector3(ref this Vector4 v4)
    {
        Vector3 v3 = new Vector3(v4.x, v4.y, v4.z);
        return v3;
    }

    public static Vector2 ToVector2(ref this Vector3 v3)
    {
        Vector2 v2 = new Vector2(v3.x, v3.y);
        return v2;
    }

}

public class VectorUtility
{


}