/// <summary>
/// Gets the camera right border in world position
/// </summary>
/// <returns>The left border.</returns>
/// <param name="camera">Camera.</param>
public static float GetRightBorder(UnityEngine.Camera camera = null)
{
camera = camera ?? UnityEngine.Camera.main;
var dist = (Vector3.zero - camera.transform.position).z;
return camera.ViewportToWorldPoint(new Vector3(1,0,dist)).x;
}
