How to make a GUI Texture (image) transparent?

Question

Hello! I have a simple image made in GIMP that is gradient, green to white. I loaded this image into my code through the editor, and I need to edit the entire images' transparency.

My code to load it in is simple:

 public Texture GPgreen;

I've assigned my image to that slot in the editor, and need to affect the whole things transparency. It is drawn as follows:

 GUI.DrawTexture(new Rect(commonLeft + padding, commonTop + padding, healthBarLength
                                  ,healthBarHeight), tex1);

Any help is greatly appreciated. Thank you!

Answer 1

Best Answer

Answer by clunk47 · Nov 02, 2013 at 08:57 PM

Define your GUI color in the first line of you OnGUI function.

 GUI.color = new Color32(255, 255, 255, 100);

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arthur_cottos · Mar 13, 2018 at 10:57 AM 0

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Thanks for this! I was looking for a way to display correctly a sprite with alpha in Editor GUI. I finally came with this solution :

 Color guiColor = GUI.color; // Save the current GUI color
 GUI.color = Color.clear; // This does the magic
 EditorGUI.DrawTextureTransparent(...);
 GUI.color = guiColor; // Get back to previous GUI color

Answer 2

Answer by LividRabbit · Nov 02, 2013 at 07:26 PM

When you click on your Texture in the project panel, look in the inspector and change the Texture Type to GUI, you might also have to change the format to truecolor.

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QuestionAsker · Nov 02, 2013 at 07:52 PM 0

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That didn't open up any more options for me... :/ It reduced it to 4 callable functions.

How to make a GUI Texture (image) transparent?

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