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Question by KurtBeley · Dec 06, 2012 at 03:23 PM · guitransparency

Putting a .png overlay onto a GUI image

I have a circular minimap which is created by a custom mask and some gui textures. The script goes as follows:

     Shader "Custom/Mask"
     {
         Properties
         {
             _MainTex ("Main Texture", 2D) = "white" {}
             _Mask ("Mask Texture", 2D) = "white" {}
         }
         SubShader
         {
             Tags { "Queue"="Transparent" }
             Lighting On
             ZWrite Off
             Blend SrcAlpha OneMinusSrcAlpha
             
             Pass
             {
                 SetTexture [_Mask] {combine texture}
                 SetTexture [_MainTex] {combine texture, previous}
             }
         }
     }

However I would like to overlay a .png image onto this which is the border of my minimap. The image has transparency however when I import it and it overlays perfectly, the background is white and you cannot see the minimap behind it. How can I make the transparency on this .png file work?

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Answer by kolmich · Dec 12, 2012 at 04:24 PM

Hi, Why not use the KGFMapSystem. You will just have to skin it. It comes with tons of other useful minimap features, is well documented and tested on pc, osx, android,ios, and web.

Check it out: webdemo: http://www.kolmich.at/kolmich/demo/kgf/KGFMinimap/KGFMinimap.html

documentation: http://www.kolmich.at/documentation

assetstore: http://u3d.as/content/kolmich-creations/kgfmap-system/3bf

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