CODEWITHSUNDEEP
c#nullunity-game-enginetexturesnullreferenceexception
Daniel
Daniel

Reputation: 2515

Loading Texture in Unity always throws NullReferenceExpection

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?

Upvotes: 0

Views: 4531

Answers (2)

Pradeep Prabhu B R
Pradeep Prabhu B R

Reputation: 428

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");

Upvotes: 1

Jerdak
Jerdak

Reputation: 4056

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);
}
}

Upvotes: 3

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