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Question by Ajna · Sep 19, 2014 at 05:45 AM · c#texture2dnullreferenceexceptioncursor

Can't load Mouse Cursor texture

 public class Cursor : MonoBehaviour 
 { 
 public Texture2D cursor; 
 public int cursorSizeX = 16; // default 
 public int cursorSizeY = 16; // default 
 
 // Use this for initialization 
 void Start () 
 { 
 Object temp = Resources.Load("Textures/CR_Cursor (Custom)"); 
 
 if (temp == null) 
 Debug.Log("Load Object Fail"); 
 
 cursor = (Texture2D)Resources.Load("Textures/CR_Cursor (Custom)"); 
 
 if (cursor == null) 
 Debug.Log("Load Cursor Fail"); 
 
 Screen.showCursor = false; 
 } 
 
 // Update is called once per frame 
 void Update () 
 { 
 GUI.DrawTexture(new Rect(Event.current.mousePosition.x - cursorSizeX / 2, Event.current.mousePosition.y - cursorSizeY / 2, cursorSizeX, cursorSizeY), cursor); 
 } 

no matter where I instantiate the cursor im sill getting NullReferenceException: Object reference not set to an instance of an object Cursor.Update (), what I am missing?

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Answer by dmg0600 · Sep 19, 2014 at 10:41 AM

Just change your Update() method for OnGUI(). Unity uses this method to render all GUI mehtods such as the DrawTexture you use for your cursor.

 void OnGUI()
 {
     GUI.DrawTexture(new Rect(Event.current.mousePosition.x - cursorSizeX / 2, Event.current.mousePosition.y - cursorSizeY / 2, cursorSizeX, cursorSizeY), cursor);
 }
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