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This question was closed Aug 17, 2015 at 04:59 AM by thornekey for the following reason:

The question is answered, right answer was accepted

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Question by thornekey · Aug 15, 2015 at 05:56 PM · c#nullreferenceexceptionienumerator

Cant change material texture through C# script

why wont this work? Im getting a nullreference error on the 'rend.mater....' line

 public Texture2D textures;
 public float speed = 2f;
 
 public IEnumerator LoopTexture () {
 
     for(int i = 0; i<textures.Length; i++) {
         rend.material.SetTexture("_MainTex", textures[i]);
             yield return new WaitForSeconds(speed);
     }
 }

I have also tried:

 rend.material.mainTexture = textures[i];

and tried changing "_MainTex" to "_MainTexture"

nothing will work

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Best Answer

Answer by mtdrume · Aug 15, 2015 at 08:30 PM

added []

 public Texture2d[] textures;
 public float speed = 2f;
 

added call, not sure if you had it called from somewhere else

 void Start()
     {
     StartCoroutine ("LoopTexture");
     }
             
 public IEnumerator LoopTexture () {
                 
 for(int i = 0; i<textures.Length; i++) {

Updated this (not sure if you were referencing getcomponent

 GetComponent<Renderer> ().material.SetTexture("_MainTex", textures[i]);
 yield return new WaitForSeconds(speed);
 }
 }


Tested and working :)

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avatar image thornekey · Aug 16, 2015 at 05:25 AM 0
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ive actually already got those lines. I just compressed it to show you the line that has the problem. I basically have the exact same code and it does not work.

avatar image mtdrume · Aug 16, 2015 at 03:14 PM 0
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in your code you have Texture2d not Texture2d[], that is the biggest thing i notice because you are not calling an array.

avatar image thornekey · Aug 17, 2015 at 04:58 AM 1
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i rewrote it here. I must have missed that. The problem was the GetComponent, nothing else.

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