Rotation changing in untouched axis

Question

Somehow, when changing in x and y axis, z axis is also changed. I can't sleep because of t$$anonymous$$s, I really cant understand the problem.

I tried the Transform.Rotate method and also by calculating the resulting quaternions to check if it was a bug with the method or somet$$anonymous$$ng but the result is the same.

     Vector3 newHeadRotationDelta = Vector3.zero;
             newHeadRotationDelta += Vector3.up * xInput * mouseSensibility * Time.deltaTime;
             newHeadRotationDelta += Vector3.left * yInput * mouseSensibility * Time.deltaTime;

     var newQuat = headObj.localRotation * Quaternion.Euler(newHeadRotationDelta);
     headObj.localRotation = newQuat;

If someone can help me figure it out, I'd be much appreciated, t$$anonymous$$s is driving me crazy.

Thanks

EDIT: Added more code for clarity

Answer 1

Answer by JustAbhi · Apr 10, 2020 at 05:35 AM

There is a very easy answer to your question. First make your camera in the scene a c$$anonymous$$ld of your player. Instead of changing the rotation of your player in both the axes just change Vertical rotation of your camera and the horizontal rotation of your Player separately.like:-

 void Update()
     {
         if (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl))
             Cursor.lockState = CursorLockMode.None;
         transform.position = offset + plr.position;
         float y = Input.GetAxis("Mouse Y") * mousesensitivity * Time.deltaTime;
         float x = Input.GetAxis("Mouse X") * mousesensitivity * Time.deltaTime;
         xRotation -= y;
         xRotation = Mathf.Clamp(xRotation, -90f, 90f);
         transform.localRotation = Quaternion.Euler(xRotation, x, 0f);
         plr.Rotate(Vector3.up * x);
         
     }

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SirPirelli · Apr 10, 2020 at 01:40 PM 0

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The resulting rotation is the same if I rotate separately the left and up vector or sum them and I dont want to just change the camera, I'm not even talking about cameras. I'm already just changing the localRotation of the object and any parent of the gameobject is rotating, so it cant be caused by a gameobject up in the hierarchy. I'll edit to add more code for clarity.

Rotation changing in untouched axis

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