The Image is not Fading-In. Please help!!

Questions & Answers
1

I’ve dragged Image in gameobject “uiElement” and the Image should ‘Fade In’ when gameobject “Plane” has Y-position = 40. But the code is not working. Please help!!

using System.Collections;
using UnityEngine;

public class AO : MonoBehaviour
{
public GameObject uiElement;
public GameObject Plane;
SpriteRenderer rend;

void Start()
{
    rend = uiElement.GetComponent<SpriteRenderer>();
    Color c = rend.material.color;
    c.a = 0f;
    rend.material.color = c;
}

void Update()
{
    if (this.transform.position.y >= 40)
    {
        StartCoroutine("FadeIn");
    }
}

public IEnumerator FadeIn()
{
    for (float f = 0.05f; f <= 1; f += 0.05f)
    {
        Color c = rend.material.color;
        c.a = f;
        rend.material.color = c;
        yield return new WaitForSeconds(0.05f);
    }
}

},using System.Collections;
using UnityEngine;

public class AO : MonoBehaviour
{
public GameObject uiElement;
public GameObject Plane;
SpriteRenderer rend;

void Start()
{
    rend = uiElement.GetComponent<SpriteRenderer>();
    Color c = rend.material.color;
    c.a = 0f;
    rend.material.color = c;
}

void Update()
{
    if (this.transform.position.y >= 40)
    {
        StartCoroutine("FadeIn");

    }
}

public IEnumerator FadeIn()
{
    Debug.Log("Entered coroutine");
    for (float f = 0.05f; f <= 1; f += 0.05f)
    {
        Color c = rend.material.color;
        c.a = f;
        rend.material.color = c;
        yield return new WaitForSeconds(0.05f);
    }
}

}

2

Fade in

public IEnumerator IEFadeIn() {
// t is time, start to 0 seconds and end to 1 second
// for increase or decrease speed 
// t += Time.deltaTime * speed

Color toColor = Color.gray;
for(float t = 0; t < 1; t += Time.deltaTime) {
rend.material.color = Color.Lerp(rend.material.color, toColor, t);
yield return null
}

}