Question by Sackwut · Feb 23, 2020 at 04:29 PM · quaternion quaternions quaternion.slerp

Rotation by Quaternion Slerp problems

Im still facing issues with Rotation by either quaternion.Slerp or lerp. I do something wrong, but i cannot see it.

In this example, i just want to simply rotate the cover of a chest on the x axis by -45° The code looks like this:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class TestRot : MonoBehaviour
 {
     [SerializeField] GameObject chestCover;
 
     private void Update() 
     { 
 
         if (Input.GetMouseButtonDown(0) || Input.GetMouseButtonDown(1))
         {
             StartCoroutine(OpenLootWindow());
         }
     }
 
     private IEnumerator OpenLootWindow()
     {
         Quaternion startRot = chestCover.transform.rotation;
         Quaternion endRot = Quaternion.Euler(-45, 0, 0);
 
         float t = 0f;        
 
         while (t <= 1f)
         {
             chestCover.transform.rotation = Quaternion.Slerp(startRot, endRot, t);
             t += Time.deltaTime * 0.8f;
             yield return null;
         }
          chestCover.transform.rotation = endRot;
     }
 
 }

The start rotation values are 0,0,0. So he just need to go -45 in the x axis, but the result looks like this:

alt text