Invisible GUI

Unity Engine
,
1

Hi,

My User Interface for my menu screens is one image and the buttons are part of the image, what is the best way to make these buttons clickable, should I use use a rectangle and check if a user has pressed the area or is there a way to make the unity GUI buttons see through and place them over the background image?

2

All GUI commands take an optional style - if you use GUIStyle.none, they become transparent. E.g.:

var background : Texture2D;
function OnGUI () {
    // Draw the background texture
    GUI.DrawTexture (Rect (0,0, background.width, background.height), background);

    // Make the invisble button
    if (GUI.Button (Rect (0,0,100,100), "", GUIStyle.none))
        Debug.Log ("Invisble button pressed");
}
3

Cheers, but the line:

if (GUI.Button (Rect (0,0,100,100), “”, GUIStyle.none))

Just crashes unity…

4

anyone know how to make a button with no style that wont crash unity?

5

Are you using a compressed texture? Because that definitely crashes the web player if used in a GUI.Button, GUI.TextArea, GUI.Label, etc.

Make sure you check your image settings and change the format from DXT1 and DX5 to RGB or RGBA.

6

@tgraupman:
Which browser/OS/graphics card does this? I know of tons of game that use compressed textures just fine in their GUI, so I’d like to know a lot more :slight_smile:

Could you submit a bugreport from the machine that crashes - including a built webplayer and the project it came from? Sorry if it seems a bit excessive, but this is the first I’ve heard of it, so I’d like to get as much info as possible.

Oh, and do tell me the bug number, so I can keep a lookout as it comes in.

Thanks,
Nicholas

7

Sorry to hijack your thread. It turns out IIRC that the compressed bug was fixed in Unity 2.5.

140636–5140–$compressedtextureingui_148.zip (1.11 MB)