Bug SpriteRenderer.color not working at runtime?

Hello! I want my sprite to have an effect that would always change its color to any color through lerp, so I'm using this code method to see would it work:

Code (CSharp):

1. void Start()
2.     {
3.         colors = new Color32[7]
4.         {
5.             new Color(255, 0, 0, 255),
6.             new Color(255, 165, 0, 255),
7.             new Color(255, 255, 0, 255),
8.             new Color(0, 255, 0, 255),
9.             new Color(0, 0, 255, 255),
10.             new Color(75, 0, 130, 255),
11.             new Color(238, 0, 0, 255),
12.         };
13.         StartCoroutine(ColorCycle());
14.     }

And I tested. Obviously, the code is fine, but the sprite won't actually change it even if it's called directly. I have tested it with material and it works with material.color, but why not sprite?

Code (CSharp):

1. public IEnumerator ColorCycle()
2.     {
3.         int i = 0;
4.         while (true)
5.         {
6.             for (float interpolant = 0f; interpolant < 1f; interpolant += 0.001f)
7.             {
8.                 sprite.color = Color.Lerp(colors[i % 7], colors[(i + 1) % 7], interpolant);
9.                 yield return null;
10.             }
11.             i++;
12.         }
13.     }

If anyone knows a solution to this, I will be pleased

 

the main mistake is at

these values; the Color values are ranged between [0,1], so fixing that will probably solve all your problems https://docs.unity3d.com/ScriptReference/Color.html

additionally,

You are doing a frame rate dependent work(

), so you should multiply the interpolant's change rate with Time.DeltaTime.

another troubling issue is at

this is just a bit too low of a float value to add, multiplying it with Time.DeltaTime will result in an even smaller addend; which may cause some floating point precision errors; I would probably get the t value of the lerp method by using frac(or %1f) on Time.time https://docs.unity3d.com/ScriptReference/Time-time.html . You'll of course have to change how the for loop ends too etc.

 

If you want to use byte values for colors then use Color32. It has an implicit cast to Color and vice versa so it can be used as a direct replacement:

• https://docs.unity3d.com/ScriptReference/Color32.html

 

I found the problem! Althrough thanks @venediklee and @FaithlessOne for very helpful informations

As I said above, the code was fine, so there are no errors in the code attachment.
However, the problem is that I'm using a custom material that can't draw custom colors, it's actually a billboard material

I hope I would understand to fix the custom material so that everything would work fine
I'm very sorry for my confusion