(2D) Transition Fade between two shaders/materials?

Unity Engine
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1

Hi, i modified a script to make objects invisible on collision for a top down game, for roofs and stuff.

using UnityEngine;
using System.Collections;

public class ScriptFade : MonoBehaviour

 {

    public Material baseMaterial;
    public Material fadeMaterial;

    void OnTriggerEnter2D(Collider2D collider){

        if ( collider.gameObject.tag == "Player") {

            GetComponent<Renderer>().material = fadeMaterial;
        }
    }

    void OnTriggerExit2D(Collider2D collider){
         if ( collider.gameObject.tag == "Player")
        {
            GetComponent<Renderer>().material = baseMaterial;
        }
    }
}

the method is switching between two materials, and made one of those invisible with a custom shader.

Is there a way to make this switch smoother?

2

nevermind, made a modification of another script using coroutines, this is it

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Roof2 : MonoBehaviour
{

    private void OnTriggerEnter2D(Collider2D collider) {
    
    if ( collider.gameObject.tag == "Player")
    {
        StartCoroutine(fadeOut(GetComponent<SpriteRenderer>(), 1f));
    }
       IEnumerator fadeOut(SpriteRenderer MyRenderer, float duration)
{
    float counter = 0;
    //Get current color
    Color spriteColor = MyRenderer.material.color;

    while (counter < duration)
    {
        counter += Time.deltaTime;
        //Fade from 1 to 0
        float alpha = Mathf.Lerp(1, 0, counter / duration);
        Debug.Log(alpha);

        //Change alpha only
        MyRenderer.color = new Color(spriteColor.r, spriteColor.g, spriteColor.b, alpha);
        //Wait for a frame
        yield return null;
    }
}
    }

     private void OnTriggerExit2D(Collider2D collider) {
    
    if ( collider.gameObject.tag == "Player")
    {
        StartCoroutine(fadeIn(GetComponent<SpriteRenderer>(), 1f));
    }
       IEnumerator fadeIn(SpriteRenderer MyRenderer, float duration)
{
    float counter = 0;
    //Get current color
    Color spriteColor = MyRenderer.material.color;

    while (counter < duration)
    {
        counter += Time.deltaTime;
        //Fade from 1 to 0
        float alpha = Mathf.Lerp(0, 1, counter / duration);
        Debug.Log(alpha);

        //Change alpha only
        MyRenderer.color = new Color(spriteColor.r, spriteColor.g, spriteColor.b, alpha);
        //Wait for a frame
        yield return null;
    }
}
    }
}