Jerky rotation problem

Hi, I've tried a bunch of things but for some reason my code jerks my car when I move the mouse to fast. Here is my code:

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class dfsag : MonoBehaviour {
5.     private float mouse;
6.     private Quaternion quats;
7.  
8.     private float ClampAngle (float angle,float min,float max) {
9.         if (angle < 0)
10.             angle += 360f;
11.         if (angle > 360f)
12.             angle -= 360f;
13.         return angle;
14.     }
15.     void Update () {
16.         mouse += Input.GetAxisRaw("Mouse X")* 995 * Time.deltaTime;
17.         ClampAngle(mouse,0, 360f);
18.     }
19.     void FixedUpdate () {
20.         quats = Quaternion.FromToRotation(Vector3.up,Vector3.up)*Quaternion.Euler (0,mouse,0);
21.         transform.rotation = Quaternion.Slerp(transform.rotation,quats,Time.deltaTime*7);
22.     }
23. }

It does exactly what I want except when I move the mouse fast it has a large jerky pause as long as i keep moving it so fast. I've tried angleaxis, transform.Rotate, moving mouse code to fixed update, etc etc. I can't just clamp the mouse delta because then the sensitivity would be slow. Can anyone help please?

 

Firstly, you can just use "Quaternion.Euler(Vector3.up)" instead of "Quaternion.FromToRotation(Vector3.up,Vector3.up)" which is doing a bit of unnecessary work.

Your problem is that when you move the mouse too fast, the angle wraps around and the Slerp detects that it is faster to start interpolating in the other direction. Instead of a smooth interpolation, it stops, reverses, and you get jerkiness.

Instead of clamping the value, and always rotating toward a fixed angle, you could try to always keep track of the accumulated mouse delta and then rotate the angle a certain percentage of this delta each update to "catch up" to the mouse. The lower the percentage, the smoother your camera will be (but too smooth and it will feel unresponsive).

 

Cant I slerp/lerp all axis except the rotation around y somehow?

 

I ended up clamping the max angle per fixed update (line 16) to 20. Thanks for the reply.