Time In While Loop Not Working

This loop should make the slider value increade over time(in this case 3 seconds) however it basically jumps to 3 very fast. idk whats wrong

Code (CSharp):

1.     private IEnumerator LerpSlider(Slider slider, float time)
2.     {
3.         float timeScale = 0;
4.         float speed = 1/time;
5.         while (timeScale < 1)
6.         {
7.             timeScale += Time.deltaTime * speed;
8.             slider.value = Mathf.Lerp(0f, 3f, timeScale);
9.             Debug.Log(slider.value);
10.         }
11.         slider.gameObject.SetActive(false);
12.         yield return null;
13.     }

 

While loops won't pause in between iterations, you need to

yield return null

inside of the loop for it to wait until the next update.

 

Unity locks up solid until you return from your code. Therefore all X iterations of however long it takes to count timeScale up to 1 will occur all in one frame.

If you had set timeScale to zero, you would have locked Unity up solid and you would have to force-quit.

You are not the app. Your code is not the app. Unity is the app. Unity is the code. Your code may get called at Unity's convenience and discretion, as long as you follow all the "please call my code" rules.

Here is some timing diagram help:

https://docs.unity3d.com/Manual/ExecutionOrder.html

Said another way:

https://forum.unity.com/threads/res...-problem-when-using-ioc.1283879/#post-8140583