Water Shader Problem in Windows Standalone

Hey folks,
I combined a few bits of shader code to make this foam water shader. It works in the editor and as OSX standalone, but in Windows standalone it breaks and the output log says: "Pass ' ' has no fragment shader."

Can anyone diagnose?

Code (CSharp):

1. Shader "FX/Water_al" {
2. Properties {
3.     [NoScaleOffset] _ReflectiveColor ("Reflective color (RGB) fresnel (A) ", 2D) = "" {}
4.     _HorizonColor ("Simple water horizon color", COLOR)  = ( .172, .463, .435, 1)
5.  
6.  
7.     //foam stuff
8.         [NoScaleOffset] _Foam ("Foam texture", 2D) = "white" {}
9.     [NoScaleOffset] _FoamGradient ("Foam gradient ", 2D) = "white" {}
10.     _FoamStrength ("Foam strength", Range (0, 10.0)) = 1.0
11. }
12.  
13.  
14. // -----------------------------------------------------------
15. // Fragment program cards
16.  
17.  
18. Subshader {
19.     Tags { "Queue"="Transparent" "RenderType"="Transparent" }
20.     Blend SrcAlpha OneMinusSrcAlpha
21.             ZWrite Off
22.     Pass {
23.  
24. CGPROGRAM
25. #pragma vertex vert
26. #pragma fragment frag
27. #pragma multi_compile_fog
28.  
29.  
30.  
31.  
32.  
33.  
34. #include "UnityCG.cginc"
35.  
36.  
37.  
38. uniform float _FoamStrength;
39.  
40.  
41.  
42. struct appdata {
43.     float4 vertex : POSITION;
44. //    float3 normal : NORMAL;
45. };
46.  
47.  
48. struct v2f {
49.     float4 pos : SV_POSITION;
50.  
51.         float4 ref : TEXCOORD0;
52.  
53.  
54.         float3 viewDir : TEXCOORD3;
55.         float2 foamuv : TEXCOORD4;
56.  
57.     UNITY_FOG_COORDS(4)
58. };
59.  
60.  
61.  
62.  
63. v2f vert(appdata v)
64. {
65.     v2f o;
66.     o.pos = mul (UNITY_MATRIX_MVP, v.vertex);
67.  
68.  
69.  
70.     // scroll bump waves
71.     float4 temp;
72.     float4 wpos = mul (unity_ObjectToWorld, v.vertex);
73.  
74.  
75.     //foam stuff
76.     o.foamuv = 7.0f * wpos.xz + 0.05 * float2(_SinTime.w, _SinTime.w);
77.     o.ref = ComputeScreenPos(o.pos);
78.  
79.     // object space view direction (will normalize per pixel)
80.     o.viewDir.xzy = WorldSpaceViewDir(v.vertex);
81.  
82.  
83.  
84.  
85.     UNITY_TRANSFER_FOG(o,o.pos);
86.     return o;
87. }
88.  
89.  
90. sampler2D _ReflectiveColor;
91.  
92. uniform float4 _HorizonColor;
93.  
94.  
95.  
96.  
97. //foam stuff
98. sampler2D _Foam;
99. sampler2D _FoamGradient;
100. uniform sampler2D _CameraDepthTexture; //Depth Texture
101.  
102. half4 frag( v2f i ) : SV_Target
103. {
104.     i.viewDir = normalize(i.viewDir);
105.  
106.  
107.  
108.  
109.     // fresnel factor
110.     half fresnelFac = dot( i.viewDir, 0 );
111.  
112.     // perturb reflection/refraction UVs by bumpmap, and lookup colors
113.  
114.  
115.     half4 color;
116.     half4 water = tex2D( _ReflectiveColor, float2(fresnelFac,fresnelFac) );
117.     color.rgb = lerp( water.rgb, _HorizonColor.rgb, water.a );
118.     color.a = _HorizonColor.a;
119.  
120.  
121.  
122.  
123. //foam stuff
124. float sceneZ = LinearEyeDepth (tex2Dproj(_CameraDepthTexture, UNITY_PROJ_COORD(i.ref)).r);
125.     float objectZ = i.ref.z;
126.     float intensityFactor = 1 - saturate((sceneZ - objectZ) / _FoamStrength);  
127.  
128.  
129.     half3 foamGradient = 1 - tex2D(_FoamGradient, float2(intensityFactor - _Time.y*0.2, 0) + 0 * 0.15);
130.     float2 foamDistortUV = 0 * 0.2;
131.     half3 foamColor = tex2D(_Foam, i.foamuv + foamDistortUV).rgb;
132.     color.rgb += foamGradient * intensityFactor * foamColor;
133.  
134.  
135.  
136.     UNITY_APPLY_FOG(i.fogCoord, color);
137.     return color;
138. }
139. ENDCG
140.  
141.     }
142. }
143.  
144. }
145.  

 

Is it compiled? I think ref is not suitable varying variable name.