Add shaders

Sources/Shaders/SeparableWeightedBlurDof34.shader

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+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+Shader "Hidden/SeparableWeightedBlurDof34" {
+	Properties {
+		_MainTex ("Base (RGB)", 2D) = "" {}
+		_TapMedium ("TapMedium (RGB)", 2D) = "" {}
+		_TapLow ("TapLow (RGB)", 2D) = "" {}
+		_TapHigh ("TapHigh (RGB)", 2D) = "" {}
+	}
+
+	CGINCLUDE
+	
+	#include "UnityCG.cginc"	
+		
+	half4 offsets;
+	half4 _Threshhold;
+	sampler2D _MainTex;		
+	sampler2D _TapHigh;
+		
+	struct v2f {
+		half4 pos : SV_POSITION;
+		half2 uv : TEXCOORD0;
+		half4 uv01 : TEXCOORD1;
+		half4 uv23 : TEXCOORD2;
+		half4 uv45 : TEXCOORD3;
+	};
+	
+	struct v2fSingle {
+		half4 pos : SV_POSITION;
+		half2 uv : TEXCOORD0;
+	};
+	
+	//
+	// VERT PROGRAMS
+	//
+	
+	v2f vert (appdata_img v) {
+		v2f o;
+		o.pos = UnityObjectToClipPos(v.vertex);
+		o.uv.xy = v.texcoord.xy;
+		o.uv01 =  v.texcoord.xyxy + offsets.xyxy * half4(1,1, -1,-1);
+		o.uv23 =  v.texcoord.xyxy + offsets.xyxy * half4(1,1, -1,-1) * 2.0;
+		o.uv45 =  v.texcoord.xyxy + offsets.xyxy * half4(1,1, -1,-1) * 3.0;
+
+		return o;  
+	}
+	
+	v2fSingle vertSingleTex (appdata_img v) {
+		v2fSingle o;
+		o.pos = UnityObjectToClipPos(v.vertex);
+		o.uv.xy = v.texcoord.xy;
+		return o;  
+	}	
+	
+	//
+	// FRAG PROGRAMS
+	//
+		
+	// mostly used for foreground, so more gaussian-like
+			
+	half4 fragBlurUnweighted (v2f i) : SV_Target {
+		half4 blurredColor = half4 (0,0,0,0);
+
+		half4 sampleA = tex2D(_MainTex, i.uv.xy);
+		half4 sampleB = tex2D(_MainTex, i.uv01.xy);
+		half4 sampleC = tex2D(_MainTex, i.uv01.zw);
+		half4 sampleD = tex2D(_MainTex, i.uv23.xy);
+		half4 sampleE = tex2D(_MainTex, i.uv23.zw);
+				
+		blurredColor += sampleA;
+		blurredColor += sampleB;
+		blurredColor += sampleC; 
+		blurredColor += sampleD; 
+		blurredColor += sampleE; 
+		
+		blurredColor *= 0.2;
+		
+		blurredColor.a = max(UNITY_SAMPLE_1CHANNEL(_TapHigh, i.uv.xy), blurredColor.a);
+
+		return blurredColor;
+	}
+
+	// used for background, so more bone curve-like
+		
+	half4 fragBlurWeighted (v2f i) : SV_Target {
+		half4 blurredColor = half4 (0,0,0,0);
+
+		half4 sampleA = tex2D(_MainTex, i.uv.xy);
+		half4 sampleB = tex2D(_MainTex, i.uv01.xy);
+		half4 sampleC = tex2D(_MainTex, i.uv01.zw);
+		half4 sampleD = tex2D(_MainTex, i.uv23.xy);
+		half4 sampleE = tex2D(_MainTex, i.uv23.zw);
+ 			
+		half sum = sampleA.a + dot (half4 (1.25, 1.25, 1.5, 1.5), half4 (sampleB.a,sampleC.a,sampleD.a,sampleE.a));
+	
+		sampleA.rgb = sampleA.rgb * sampleA.a; 
+		sampleB.rgb = sampleB.rgb * sampleB.a * 1.25;
+		sampleC.rgb = sampleC.rgb * sampleC.a * 1.25; 
+		sampleD.rgb = sampleD.rgb * sampleD.a * 1.5; 
+		sampleE.rgb = sampleE.rgb * sampleE.a * 1.5; 
+				
+		blurredColor += sampleA;
+		blurredColor += sampleB;
+		blurredColor += sampleC; 
+		blurredColor += sampleD; 
+		blurredColor += sampleE; 
+		
+		blurredColor /= sum;
+		half4 color = blurredColor;	
+		
+		color.a = sampleA.a;
+		
+		return color;
+	}
+	
+	half4 fragBlurDark (v2f i) : SV_Target {
+		half4 blurredColor = half4 (0,0,0,0);
+
+		half4 sampleA = tex2D(_MainTex, i.uv.xy);
+		half4 sampleB = tex2D(_MainTex, i.uv01.xy);
+		half4 sampleC = tex2D(_MainTex, i.uv01.zw);
+		half4 sampleD = tex2D(_MainTex, i.uv23.xy);
+		half4 sampleE = tex2D(_MainTex, i.uv23.zw);
+		 			
+		half sum = sampleA.a + dot (half4 (0.75, 0.75, 0.5, 0.5), half4 (sampleB.a,sampleC.a,sampleD.a,sampleE.a));
+	
+		sampleA.rgb = sampleA.rgb * sampleA.a; 
+		sampleB.rgb = sampleB.rgb * sampleB.a * 0.75;
+		sampleC.rgb = sampleC.rgb * sampleC.a * 0.75; 
+		sampleD.rgb = sampleD.rgb * sampleD.a * 0.5; 
+		sampleE.rgb = sampleE.rgb * sampleE.a * 0.5; 
+				
+		blurredColor += sampleA;
+		blurredColor += sampleB;
+		blurredColor += sampleC; 
+		blurredColor += sampleD; 
+		blurredColor += sampleE; 
+		
+		blurredColor /= sum;
+		half4 color = blurredColor;	
+		
+		color.a = sampleA.a;
+		
+		return color;
+	}
+		
+	// not used atm
+	
+	half4 fragBlurUnweightedDark (v2f i) : SV_Target {
+		half4 blurredColor = half4 (0,0,0,0);
+
+		half4 sampleA = tex2D(_MainTex, i.uv.xy);
+		half4 sampleB = tex2D(_MainTex, i.uv01.xy);
+		half4 sampleC = tex2D(_MainTex, i.uv01.zw);
+		half4 sampleD = tex2D(_MainTex, i.uv23.xy);
+		half4 sampleE = tex2D(_MainTex, i.uv23.zw);
+				
+		blurredColor += sampleA;
+		blurredColor += sampleB * 0.75;
+		blurredColor += sampleC * 0.75; 
+		blurredColor += sampleD * 0.5; 
+		blurredColor += sampleE * 0.5; 
+		
+		blurredColor /= 3.5;
+		
+		blurredColor.a = max(UNITY_SAMPLE_1CHANNEL(_TapHigh, i.uv.xy), blurredColor.a);
+
+		return blurredColor;
+	}	
+	
+	// fragMixMediumAndLowTap
+	// happens before applying final coc/blur result to screen,
+	// mixes defocus buffers of different resolutions / bluriness
+	
+	sampler2D _TapMedium;
+	sampler2D _TapLow;
+	
+	half4 fragMixMediumAndLowTap (v2fSingle i) : SV_Target 
+	{
+	 	half4 tapMedium = tex2D (_TapMedium, i.uv.xy);
+		half4 tapLow = tex2D (_TapLow, i.uv.xy);
+		tapMedium.a *= tapMedium.a;
+		
+		tapLow.rgb = lerp (tapMedium.rgb, tapLow.rgb, (tapMedium.a * tapMedium.a));
+		return tapLow;
+	}
+	
+	ENDCG
+	
+Subshader {
+	ZTest Always Cull Off ZWrite Off
+	  	
+  Pass {     
+      
+      CGPROGRAM
+      
+      #pragma vertex vert
+      #pragma fragment fragBlurWeighted
+      
+      ENDCG
+  }
+  Pass {   
+      CGPROGRAM
+      
+      #pragma vertex vert
+      #pragma fragment fragBlurUnweighted
+      
+      ENDCG
+  }    
+  
+  // 2
+  
+  Pass {    
+      CGPROGRAM
+      
+      #pragma vertex vert
+      #pragma fragment fragBlurUnweightedDark
+      
+      ENDCG
+  }
+  Pass {    
+      CGPROGRAM
+      
+      #pragma vertex vertSingleTex
+      #pragma fragment fragMixMediumAndLowTap
+      
+      ENDCG
+  }   
+  
+  // 4
+  
+  Pass {    
+      CGPROGRAM
+      
+      #pragma vertex vert
+      #pragma fragment fragBlurDark
+      
+      ENDCG
+  }
+}
+
+Fallback off
+	
+} // shader