Control your camera to look around using mouse


MouseLookAround.cs
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using UnityEngine;
 
public class MouseLookAround : MonoBehaviour
{
    float rotationX = 0f;
    float rotationY = 0f;
 
    public float sensitivity = 15f;
 
    void Update()
    {
        rotationY += Input.GetAxis("Mouse X") * sensitivity;
        rotationX += Input.GetAxis("Mouse Y") * -1 * sensitivity;
        transform.localEulerAngles = new Vector3(rotationX,rotationY,0);
    }
}
Improved Script(Smooth Rotation & Sensitivity Axis Control)
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using UnityEngine;
 
public class MouseLookAround : MonoBehaviour
{
    float rotationX = 0f;
    float rotationY = 0f;
 
    public Vector2 sensitivity = Vector2.one * 360f;
 
    void Update()
    {
        rotationY += Input.GetAxis("Mouse X") * Time.deltaTime * sensitivity.x;
        rotationX += Input.GetAxis("Mouse Y") * Time.deltaTime * -1 * sensitivity.y;
        transform.localEulerAngles = new Vector3(rotationX, rotationY, 0);
    }
}
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