smooth look at only on x and y

Question

i'm using the script down below to make my camera look at mouse x and y position, and it has a limitation for my camera rotation.the problem is the way my camera rotates is not smooth at all.is there any way to make it smoothly look at position on x and y?

    rotationX += Input.GetAxis("Mouse X") * sensitivityX;

    rotationX = Mathf.Clamp(rotationX, minimumX, maximumX);

    rotationY += Input.GetAxis("Mouse Y") * sensitivityY ;

    rotationY = Mathf.Clamp(rotationY, minimumY, maximumY);

    transform.localEulerAngles = new Vector3(-rotationY , rotationX, 0);

Answer 1

You are rotating it on a fixed time step. Unity's Update method (which I assume you are using) uses a variable time step. This means you have two options:

Normally you would perform your physics update in FixedUpdate, but input does not work in FixedUpdate. This means you need to multiply by your time step, AKA the duration of the previous frame. Your new code would look like such:

private void Update()
{
    rotationX += Input.GetAxis("Mouse X") * sensitivityX * Time.deltaTime;
    rotationX = Mathf.Clamp(rotationX, minimumX, maximumX);
    rotationY += Input.GetAxis("Mouse Y") * sensitivityY * Time.deltaTime;
    rotationY = Mathf.Clamp(rotationY, minimumY, maximumY);
    transform.localEulerAngles = new Vector3(-rotationY , rotationX, 0);
}

With this new code, you will also need to increase your sensitivity variables.