Question Clamping with SmoothDamp

Why is my vertical head movement on the X axis getting successfully clamped to the maximum (80 degrees when looking down) but doesn't get clamped and gets buggy when looking up?
When looking up, the camera jitters around 89 and 91 degrees. It puts me in that locked state once I move the camera where the clamps ends, -80 degrees.

I'm guessing the problem has to do with SmoothDamp (that I use to smoothen the rotation), but I can't think of a fix.

To clarify, it's a first-person controller camera script. You're supposed to be able to rotate the camera from -80 to 80 degrees up and down.

Code (CSharp):

1.     void Update()
2.     {
3.  
4.         float mouseX = Input.GetAxis("Mouse X") * sensitivity;
5.         float mouseY = Input.GetAxis("Mouse Y") * sensitivity;
6.  
7.  
8.         Vector3 endRotationCam = new Vector3(-mouseY, 0, 0) + transform.localEulerAngles;
9.         Vector3 endRotationBody = new Vector3(0, mouseX, 0) + charObject.localEulerAngles;
10.  
11.         Vector3 clampedRotationCam = new Vector3(Mathf.Clamp(endRotationCam.x, -80f, 80f), 0, 0);
12.  
13.         Debug.Log(clampedRotationCam);
14.  
15.        
16.  
17.         transform.localRotation = Quaternion.Euler(Vector3.SmoothDamp(transform.localEulerAngles, clampedRotationCam, ref currentVelocity, smoothTime));
18.         charObject.localEulerAngles = Vector3.SmoothDamp(charObject.transform.localEulerAngles, endRotationBody, ref currentVelocity2, smoothTime);
19.  
20.  
21.     }

 

Anytime I had an issue with jittering when playing around with rotations, is 2 separate things were trying do the same thing. Most likely because I forgot about the other thing, lol, which happens a lot in my case.

So without knowing if there's any other line of code somewhere else, that would be modifying:

Code (CSharp):

1. if (rotation.x > 90 - 1 && rotation.x < 90 + 1)
2.    rotation.x = 90;

Could be the culprit. As I've done things just like that, when the rotation winds up stopping half a degree off, or something similar.

 

Notes on clamping camera rotation and NOT using .eulerAngles because of gimbal lock:

https://forum.unity.com/threads/implement-a-limit-in-camera-movement.1100038/#post-7082380
https://forum.unity.com/threads/implement-a-limit-in-camera-movement.1100038/#post-7083097

How to instantly see gimbal lock for yourself:

https://forum.unity.com/threads/confusing-bug.1165789/#post-7471441

All about Euler angles and rotations, by StarManta:

https://starmanta.gitbooks.io/unitytipsredux/content/second-question.html

 

Hahaha happens to me all the time too, but since this is just a first person movement demo I don't have other scripts affecting the rotation

 

If you're into writing these controllers, excellent, please continue as you are.

But if you just need one, if you would prefer something more full-featured here is a super-basic starter prototype FPS based on Character Controller (BasicFPCC):

https://forum.unity.com/threads/a-basic-first-person-character-controller-for-prototyping.1169491/

That one has run, walk, jump, slide, crouch... it's crazy-nutty!!

 

transform.localEulerAngles is in the range of 0 to 360. Your script is assuming it's in the range of -180 to 180. Even if you fix the first part of your script by converting the angle to -180 to 180 you're still going to have problems because you're then trying to SmoothDamp a vector that's in the range of 0 to 360 to a vector that's in the range of -180 to 180.

I guess you're trying to create a mouse look script with smoothing. Have a look around for one that's already made:

https://forum.unity.com/threads/a-free-simple-smooth-mouselook.73117/

 

I have just read the article and your posts, but since I'm quite new to Unity and suck at rotations I'm struggling to understand how to apply quaternions in this case. I will try again when I'm home in a few hours.