Get Camera's Vector(1,01)

So I have a code that returns world forward, world (1,0,1) and etc. But I don't know how to get camera's (1,0,1) and etc. Vectors. Please help

 Vector3 SwipeAngleTest(float angle)
       {
         if (angle < -157.5 || angle > 157.5)
         {
             //Debug.Log("Left");
             return -Vector3.right;
         }
         else if (angle < -112.5)
         {
             //Debug.Log("Down Left");
             return new Vector3(-1, 0, -1);
         }
         else if (angle < -67.5)
         {
             //Debug.Log("Down");
             return -Vector3.forward;
         }
         else if (angle < -22.5)
         {
             //Debug.Log("Down right");
             return new Vector3(1, 0, -1);
         }
         else if (angle < 22.5)
         {
             //Debug.Log("Right");
             return Vector3.right;
         }
         else if (angle < 67.5)
         {
             //Debug.Log("UPRight");
             return new Vector3(1, 0, 1); 
         }
         else if (angle < 112.5)
         {
             //Debug.Log("Up");
             return Vector3.forward;
         }
         else
         {
             //Debug.Log("up left");
             return new Vector3(-1, 0, 1); 
         }
     }