void Update()
    {
        if (Input.GetKey("1"))
        {
            part = 1;
        }
        else if (Input.GetKey("2"))
        {
            part = 2;
        }
        else if (Input.GetKey("p"))
        {
            po = 1;
        }
        else if (Input.GetKey("o"))
        {
            po = 2;
        }
        //Run the code in the class
        pixTex = new Texture2D(col, row, TextureFormat.RGB24, true);
        RayCast RayCast_M = new RayCast();

        RayCast_M.caster(part, po, sun_dir, pointPosition, sun_color, point_color, eye, pixTex, Object_list, Width, Height, row, col);
    }