[Solved] GUI.Label and Rect precision ?

Hello!

For one of my project, I need to display a texture (of size 512 x 1) at the top of the screen. So I create an image 512x512 under Photoshop, set the pixels in the first line, and set alpha to 0 in the remaining lines.
Then I import the psd asset into Unity (as a ARGB 32bits texture, with point filter mode and no mipmaps), and display it thanks to the following script that is linked to the main camera:

Code (csharp):

1.  
2. var LineTexture : Texture2D;
3.  
4. function OnGUI () {
5.     GUI.Label (Rect (0, 0, 512, 512), LineTexture );
6. }
7.  

The problem I have is that the texture is displayed at the third line of the screen, and that its width is 506 instead of 512.

Does anyone have an idea why ?

I tried to tweak the camera settings, the import texture settings, ... but nothing solved the problem...

Thanks for your help,
Quentin

 

Problem solved !

The texture is included in an invisible box with borders (default GUI style), which causes the texture to be resized inside.

The solution is to create a new custom GUI style, and set the borders to 0.

Code (csharp):

1.  
2. var LineTexture : Texture2D;
3. var customGuiStyle : GUIStyle;
4.  
5. function OnGUI () {
6.     GUI.Label (Rect (0, 0, 512, 512), LineTexture, customGuiStyle);
7. }
8.  

 

Better solution: use the GUI.DrawTexture function...

Code (csharp):

1.  
2. var LineTexture : Texture2D;
3.  
4. function OnGUI () {
5.    GUI.DrawTexture (Rect (0, 0, LineTexture.width , LineTexture.height), LineTexture );
6. }
7.