Loading Texture in Unity always throws NullReferenceExpection

Question

I'm working in Unity 4.3.3f1 and I'm trying to load a Texture at runtime but I keep getting NullReferenceExpection. I have my .png located in Asset/Resources as specified by this question.

My actual code is

  Texture tex = Resources.Load("lava_pic", typeof(Texture)) as Texture;
  Rect pos = new Rect(transform.position.x - 50, 
        transform.position.y - 50, 100, 100);

  GUI.DrawTexture(pos, tex);

I've also tried with the .png extension

The Error is

NullReferenceException: Object reference not set to an instance of an object
UnityEngine.GUI.DrawTexture (Rect position, UnityEngine.Texture image, ScaleMode  
  scaleMode, Boolean alphaBlend, Single imageAspect) (at     
C:/BuildAgent/work/d3d49558e4d408f4/artifacts/EditorGenerated/GUI.cs:208)
UnityEngine.GUI.DrawTexture (Rect position, UnityEngine.Texture image) (at 
 C:/BuildAgent/work/d3d49558e4d408f4/artifacts/EditorGenerated/GUI.cs:204)
LavaScript.FixedUpdate () (at Assets/Scripts/LavaScript.cs:35)'

If I put in a Debug.Log(tex); it also prints out null so that is where the problem is.

I really don't know why this is occurring. It's in a Resources folder since that's where it needs to be and I'm fairly certain it can be a .png file. What am I doing wrong?

Jerdak · Accepted Answer · 2014-01-27 19:37:06Z

3

Try removing the file extension so it's just lava_pic.

Relevant info from the Resources docs:

...extensions must be omitted

Update

Working example from my machine. It's possible if your original code is located outside of OnGUI that the null object is GUI and not the texture.

My texture is located at Assets/Resources/galaxy_example.png

public class DrawTexture : MonoBehaviour {
Texture tex;
Rect pos;
void Start () {
    tex = Resources.Load("galaxy_example", typeof(Texture)) as Texture;
    pos = new Rect(transform.position.x - 50, 
                   transform.position.y - 50, 100, 100);
}
void OnGUI(){
    Debug.Log (tex);
    GUI.DrawTexture(pos, tex);
}
}

edited Jan 27, 2014 at 19:37

answered Jan 27, 2014 at 19:23

Jerdak

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3 Comments

Daniel Over a year ago

Tried, same result :/

Jerdak Over a year ago

@Daniel Where are you calling this code from? See my update in case you are testing you code outside of OnGUI

Daniel Over a year ago

Behavior script for a prefab, FixedUpdate(). The script is inheriting from Monobehavior

Evan Carslake · Accepted Answer · 2015-06-27 19:12:05Z

1

If you are trying to load a image inside the Asset/Resource folder use: Resoure.Load("image",typeof(texture)) as texture.

If you want to load a image from other folder load full path: Texture2D Txt= Resources.LoadAssetAtPath<Texture2D> ("Assets/Sprites/Scene1.png");

edited Jun 27, 2015 at 19:12

Evan Carslake

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answered Jun 27, 2015 at 18:17

Pradeep Prabhu B R

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