93 lines
2.4 KiB
Plaintext
93 lines
2.4 KiB
Plaintext
Shader "VolumetricFog2/FoWBlur" {
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Properties {
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_MainTex ("", 2D) = "white" {}
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_Color ("", Color) = (1,1,1,1)
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}
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SubShader {
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CGINCLUDE
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#include "UnityCG.cginc"
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struct appdata {
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float4 vertex : POSITION;
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float2 texcoord : TEXCOORD0;
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};
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struct v2fCross {
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float4 pos : SV_POSITION;
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float2 uv: TEXCOORD0;
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float2 uv1: TEXCOORD1;
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float2 uv2: TEXCOORD2;
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float2 uv3: TEXCOORD3;
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float2 uv4: TEXCOORD4;
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};
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sampler _MainTex;
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float4 _MainTex_ST;
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float4 _MainTex_TexelSize;
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v2fCross vertBlurH(appdata v) {
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v2fCross o;
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o.pos = UnityObjectToClipPos(v.vertex);
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o.uv = v.texcoord;
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float2 inc = float2(_MainTex_TexelSize.x * 1.3846153846, 0);
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o.uv1 = UnityStereoScreenSpaceUVAdjust(v.texcoord - inc, _MainTex_ST);
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o.uv2 = UnityStereoScreenSpaceUVAdjust(v.texcoord + inc, _MainTex_ST);
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float2 inc2 = float2(_MainTex_TexelSize.x * 3.2307692308, 0);
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o.uv3 = UnityStereoScreenSpaceUVAdjust(v.texcoord - inc2, _MainTex_ST);
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o.uv4 = UnityStereoScreenSpaceUVAdjust(v.texcoord + inc2, _MainTex_ST);
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return o;
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}
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v2fCross vertBlurV(appdata v) {
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v2fCross o;
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o.pos = UnityObjectToClipPos(v.vertex);
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o.uv = v.texcoord;
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float2 inc = float2(0, _MainTex_TexelSize.y * 1.3846153846);
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o.uv1 = UnityStereoScreenSpaceUVAdjust(v.texcoord - inc, _MainTex_ST);
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o.uv2 = UnityStereoScreenSpaceUVAdjust(v.texcoord + inc, _MainTex_ST);
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float2 inc2 = float2(0, _MainTex_TexelSize.y * 3.2307692308);
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o.uv3 = UnityStereoScreenSpaceUVAdjust(v.texcoord - inc2, _MainTex_ST);
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o.uv4 = UnityStereoScreenSpaceUVAdjust(v.texcoord + inc2, _MainTex_ST);
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return o;
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}
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#define PIX(uv) tex2D(_MainTex,uv)
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float4 fragBlur (v2fCross i): SV_Target {
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float4 pixel = PIX(i.uv) * 0.2270270270 + (PIX(i.uv1) + PIX(i.uv2)) * 0.3162162162 + (PIX(i.uv3) + PIX(i.uv4)) * 0.0702702703;
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return pixel;
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}
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ENDCG
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Pass { // Blur horizontally
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ZTest Always Cull Off ZWrite Off
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Fog { Mode Off }
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CGPROGRAM
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#pragma vertex vertBlurH
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#pragma fragment fragBlur
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma target 3.0
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ENDCG
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}
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Pass { // Blur vertically
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ZTest Always Cull Off ZWrite Off
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Fog { Mode Off }
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CGPROGRAM
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#pragma vertex vertBlurV
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#pragma fragment fragBlur
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma target 3.0
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ENDCG
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}
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}
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Fallback Off
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}
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