Can you use coroutines like this?

My coroutine looks like this:

 public IEnumerator heavyTask()

{

       Texture2D tex1=generateTexture(parameters...);

        yield return null;

       Texture2D tex2=generateTexture(parameters...);

        yield return null;

       ...

}

The problem is, generateTexure is a very heavy task that can take minutes, and I need it to yield during the steps it takes.

How do I add yields inside that generateTexture method, as if I unrolled the method into the calling coroutine and used yield there?

 

You'd have to do exactly that:

add yields inside that generateTexture method

, in other words, turn that method itself into a coroutine, then you could yield for it in this coroutine like this:

Code (CSharp):

1. yield return generateTexture(parameters...);

Of course you'd have to pass in a ref variable or something to get results out of it.