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Question by ronnyvdb · Jul 15, 2014 at 05:47 PM · graphicsdrawtexture

Graphics DrawTexture C# Does not appear

I am trying to draw a texture via code like this:

 void Update () {
     Vector2 clockSizeP = new Vector2 (clockSize.x * Screen.width, clockSize.y * Screen.height);
     Graphics.DrawTexture(new Rect((Screen.width / 2) - (clockSizeP.x / 2), clockPos.y * Screen.height, clockSizeP.x, clockSizeP.y), clockTexture);
 }

but nothing appears, what am I doing incorrect? TIA

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avatar image MarioAGOrdiano · Jul 15, 2014 at 05:54 PM 0
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Drawing needs to be called on OnGUI()

Check the docs : http://docs.unity3d.com/ScriptReference/$$anonymous$$onoBehaviour.OnGUI.html

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Answer by Q-nn · Jul 15, 2014 at 05:56 PM

You can only do this during the Repaint event in OnGUI(). From memory you can also do it in OnPostRender but I have not tested that for this answer.

 void OnGUI() {
     if (Event.current.type.Equals(EventType.Repaint))
         Graphics.DrawTexture(new Rect(10, 10, 100, 100), aTexture);
         
 }

http://docs.unity3d.com/ScriptReference/Graphics.DrawTexture.html

It's a good idea to read the docs before you use a function you don't know about. At the very least, it's a good idea to read them after it all goes wrong when you try using something without knowing what it's for.

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avatar image AbleArcher · Feb 08, 2018 at 09:49 PM 1
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The docs say: "If you want to draw a texture from inside of OnGUI code, you should only do that from EventType.Repaint events. It's probably better to use GUI.DrawTexture for GUI code." If it is called during Update, then presumably the above doesn't apply.

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