private void OnSceneGUI()
{
CameraView fov = (CameraView)target;
Handles.color = Color.white;
Handles.DrawWireArc(fov.transform.position, Vector3.up, Vector3.forward, 360, fov.viewRadius);
Vector3 viewAngleA = fov.DirFromAngle(-fov.viewAngle / 2, false);
Vector3 viewAngleB = fov.DirFromAngle(fov.viewAngle / 2, false);
Handles.DrawLine(fov.transform.position, fov.transform.position + viewAngleA * fov.viewRadius);
Handles.DrawLine(fov.transform.position, fov.transform.position + viewAngleB * fov.viewRadius);
}