Question by faryar76_unity · Mar 28, 2020 at 06:32 AM · android shader shader programming platform

fog shader not working in android platform

My fog Shader works fine on the Windows platform but it stoped when I switch to Android platform.

this is a screenshot of scene in windows platform , on android it will be gone

alt text

its my shader:

 // Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
 Shader "Custom/VerticalFogIntersection"
 {
     Properties
     {
        _Color("Main Color", Color) = (1, 1, 1, .5)
        _IntersectionThresholdMax("Intersection Threshold Max", float) = 1
     }
     SubShader
     {
         Tags { "Queue" = "Transparent" "RenderType"="Transparent"  }
   
         Pass
         {
            Blend SrcAlpha OneMinusSrcAlpha
            ZWrite Off
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #pragma multi_compile_fog
            #include "UnityCG.cginc"
   
            struct appdata
            {
                float4 vertex : POSITION;
            };
             
            struct v2f
            {
                float4 scrPos : TEXCOORD0;
                UNITY_FOG_COORDS(1)
                float4 vertex : SV_POSITION;
            };
   
            sampler2D _CameraDepthTexture;
            float4 _Color;
            float4 _IntersectionColor;
            float _IntersectionThresholdMax;
   
            v2f vert(appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.scrPos = ComputeScreenPos(o.vertex);
                UNITY_TRANSFER_FOG(o,o.vertex);
                return o;   
            }
   
   
             half4 frag(v2f i) : SV_TARGET
             {
                float depth = LinearEyeDepth (tex2Dproj(_CameraDepthTexture, UNITY_PROJ_COORD(i.scrPos)));
                float diff = saturate(_IntersectionThresholdMax * (depth - i.scrPos.w));
   
                fixed4 col = lerp(fixed4(_Color.rgb, 0.0), _Color, diff * diff * diff * (diff * (6 * diff - 15) + 10));
   
                UNITY_APPLY_FOG(i.fogCoord, col);
                return col;
             }
   
             ENDCG
         }
     }
 }

*Auto Graphics API : unchecked.

there is not any error or log.

my unity version is 2019.3.4f.

i also tested builded apk on physical android device.

Add comment · Show 1