[Issue] GUI disappears on certain screen position

Hi everyone !

I'm getting started with Unity and I am now following a tutorial in which it asks me to draw a GUI box (with OnGUI()).

This piece of code works great :

Code (CSharp):

1.  
2. private const int ORDERS_BAR_HEIGHT = 150;
3. private void DrawOrdersBar() {
4.         // Screen coordinates (0,0) is TOP-LEFT corner
5.  
6.         Rect rect = new Rect (0, 0, Screen.width, ORDERS_BAR_HEIGHT);
7.         GUI.skin = ordersSkin;
8.         GUI.BeginGroup (rect);
9.         GUI.Box (rect, "Orders Bar");
10.         GUI.EndGroup ();
11.     }

It draws this :

Spoiler

But as soon as I want to put that rect on the bottom of the screen, like this...

Code (CSharp):

1. private const int ORDERS_BAR_HEIGHT = 150;
2. private void DrawOrdersBar() {
3.         // Screen coordinates (0,0) is TOP-LEFT corner
4.         Rect rect = new Rect (0, Screen.height - ORDERS_BAR_HEIGHT, Screen.width, ORDERS_BAR_HEIGHT);
5.         GUI.skin = ordersSkin;
6.         GUI.BeginGroup (rect);
7.         GUI.Box (rect, "Orders Bar");
8.         GUI.EndGroup ();
9.     }

It draws this...

Spoiler

It does not appear and I don't get why !
If someone knows how to fix this, I'll be there !
Thanks !

 

In the documentation of BeginGroup : "When you begin a group, the coordinate system for GUI controls are set so (0,0) is the top-left corner of the group."

So put your box in 0,0

 

Hi @PsyKaw !
Have you read my post ? It's what I did first to get it on top of the screen, and worked well but I wanted to make that box on the bottom of the screen which disappeared when I did that too.
Anyway, I moved on and used the Unity UI system which work way better to do what I wanted to do.

Thanks !

 

Hi @YDrogen !

I've read your post and you don't undertand my answer, if you do like this :

Code (csharp):

1.  
2. private const int ORDERS_BAR_HEIGHT = 150;
3. private void DrawOrdersBar() {
4.        // Screen coordinates (0,0) is TOP-LEFT corner
5.        Rect rect = new Rect (0, Screen.height - ORDERS_BAR_HEIGHT, Screen.width, ORDERS_BAR_HEIGHT);
6.        GUI.skin = ordersSkin;
7.        GUI.BeginGroup (rect);
8.        GUI.Box (Vector2.zero, "Orders Bar");
9.        GUI.EndGroup ();
10.    }
11.  

Anyway, the "new" UI system is a lot better to do ingame UI.