Unity - How to make circle progress bar using sprite renderer?

I found a solution that's not very elegant, but gets the job done.

If you cut your sprite in half (or just use a sprite mask), you can use a sprite mask that rotates to cover up all but what ever percent you want to be shown.

using rotating a mask to cover parts of a circle.

Then all you have to do is create a second half sprite that shows the other half.

Two examples of a finished circular progress bar, one split in half and highlighted to show how it works.

Here's the code I used in the gif above:

public class CircularFillBar : MonoBehaviour
{
     public float FillValue;


     private Transform TopHideBar;
     private Transform BottomHideBar;

     void Start()
     {
         TopHideBar    = transform.Find("CircularFillBar (Top)").Find("Rotation Container (moving)");
         BottomHideBar = transform.Find("CircularFillBar (Bottom)").Find("Rotation Container (moving)");
     }

     private void FixedUpdate()
     {
    
         TopHideBar.rotation    = Quaternion.Euler(0, 0, (FillValue * 360 > 180 ? 180 : FillValue * 360));
         BottomHideBar.rotation = Quaternion.Euler(0, 0, (FillValue * 360 < 180 ? 180 : FillValue * 360));




    
         FillValue += 0.002f;

         if (FillValue > 1)
             FillValue = 0;
     }
 }

Use Sprite Sheets and Animations instead. You can find a bunch of them in Google Search