I have a script that can be aplied to this.
private float _clampingAngle = 90f;
public bool isVisible = false;
private Camera _mainCamera;
private Transform _itSelf;
private Transform _cameraTransform;
private void Awake()
{
_mainCamera = Camera.main;
_cameraTransform = _mainCamera.transform;
_itSelf = transform;
}
private void Update()
{
if (Vector3.Angle (_itSelf.position - _cameraTransform.position, _cameraTransform.forward) > _clampingAngle)
return;
Vector2 screenPosition = _mainCamera.WorldToViewportPoint(_itSelf.position);
if(screenPosition.x >= 0 && screenPosition.x <=1 && screenPosition.y >=0 && screenPosition.y <=1)
{
isVisible = true;
}
else
{
isVisible = false;
}
}
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