Question by ABerlemont · Feb 21, 2018 at 11:42 AM · ui shader mesh text

ui text and quad mesh render priority ?

Hey,

I have this issue where an UI Text is rendered in front of a quad (mesh that have a custom "cutout" shader) but the quad is spacially in front of the text (Z depth closer to perspective camera than the UI).

I know that it linked to transparency (Standard shader have the same behavior if using "transparent")

Here is the shader code applied to the quad in front of the UI Text element :

 Shader "Custom/ShaderTransition"
 {
   Properties {
     _MainTex ("Color", 2D) = "white" {}
     _CutoffTex ("Color", 2D) = "white" {}
     _Cutoff ("Cutoff", Range (0,1)) = 0.5
   }
   
   SubShader {
     Tags { "Queue"="Transparent" "RenderType"="Transparent" }
     Lighting Off
 
     ZWrite On
     
     CGPROGRAM
     #pragma surface surf Lambert alpha
     struct Input {
         float2 uv_MainTex;
     };
 
     sampler2D _MainTex;
     sampler2D _CutoffTex;
     
     float _Cutoff;
    
     void surf (Input IN, inout SurfaceOutput o) {
       fixed4 colorMain = tex2D(_MainTex, IN.uv_MainTex);
       fixed4 colorCut = tex2D(_CutoffTex, IN.uv_MainTex);
       
       //fixed avg = colorCut.r + colorCut.g + colorCut.b / 3.0;
       fixed avg = colorCut.r;
       
       o.Albedo = colorMain.rgb;
       o.Alpha = (avg < _Cutoff) ? 1 : 0;
 
     }
     ENDCG
   }
 }

Anyone knows how I might be able to solve this ?

Thanks !

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