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1
Question by AndreasX12 · Oct 13, 2013 at 05:21 PM · guispacerectworld

Convert world space to GUI Rect?

Hi, I'd like to render a GUI texture at a GameObject's position, is that possible?

What I need is just a way to convert the world space of my GameObject, into a Vector2 (or Rect).

Thanks, Andreas.

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Answer by Professor Snake · Oct 13, 2013 at 06:15 PM

You can use Camera.WorldToScreenPoint().

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Answer by Vacummus · Jun 15, 2014 at 04:31 PM

Here is the function:

 public Vector3 WorldToGuiPoint(Vector3 position)
 {
     var guiPosition = Camera.main.WorldToScreenPoint(position);
     guiPosition.y = Screen.height - guiPosition.y;
 
     return guiPosition;
 }
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Answer by Cherno · Oct 13, 2013 at 08:54 PM

 var WorldNamePos : Vector3;
 var ObjectTexture : Texture2D;
 
 function OnGUI()
 {
     WorldNamePos = Camera.main.camera.WorldToScreenPoint(Vector3(transform.position.x, transform.position.y + 0.5, transform.position.z));
     GUI.DrawTexture (Rect (WorldNamePos.x, Screen.height - WorldNamePos.y - 10, ObjectTexture.width, ObjectTexture.height), ObjectTexture);
 }
 
 
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avatar image WinterboltGames · May 17, 2017 at 04:33 PM 0
Share

4 years later and still useful answer thank you @Cherno!

avatar image Cherno WinterboltGames · May 20, 2017 at 11:59 PM 0
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Glad to be of help, good sir. Happy coding!

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Answer by VSZM · Dec 28, 2014 at 10:23 PM

This functionality is built into Unity. You need GUIUtility.ScreenToGUIPoint.

Check the unity scripting API for usage: check this out

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Answer by phoenixperry1 · Mar 30, 2014 at 11:21 PM

Nope. I don't think you can do this with stuff generated in OnGui because that stuff uses a different screen space than WorldToScreenPoint. You're going to need to flip the Y axis for that solution to work.

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