How do I lerp to a color?

Questions & Answers
1

I have a sprite that, when I mouse over it, I want it to appear slowly. Like a glow behind the player. But I don’t know how to do it exactly.

I tried using lerp. And I got nothing. The sprite appears on OnMouseEnter and dissapears in OnMouseExit.

I tried OnMouseOver as well.

So far nothing seems to work.

2

Put your sprite in the scene, add collider to it and the script below. You can use OnMouseEnter simply turning it into coroutine (or you can create a separate coroutine and run it from “normal” OnMouseEnter). Here’s the code:

	private SpriteRenderer sr;
	
	private void Awake()
	{
		sr = GetComponent<SpriteRenderer>();
		sr.color = new Color(1f, 1f, 1f, 0f);
	}
	
	IEnumerator OnMouseEnter()
	{
		Color start = sr.color;
		Color target = new Color(1f, 1f, 1f, 1f);
		float t = 0f;
		float duration = 3f;
		while(t < 1f)
		{
			t += Time.deltaTime / duration;
			sr.color = Color.Lerp(start, target, t);
			yield return null;
		}
	}