Initial Commit

Assets/Plugins/Light2D/Resources/Shaders/FastBlur.shader

@@ -0,0 +1,81 @@
+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+/*
+
+Fast, low quality blur.
+
+*/
+
+Shader "Light2D/Fast Blur" {
+Properties {
+	_Distance ("Distance", Float) = 4 // blur distance in pixels
+}
+
+SubShader {
+	Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
+	LOD 100
+	
+	ZWrite Off
+	//Blend SrcAlpha OneMinusSrcAlpha 
+
+	Pass {  
+		CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			
+			#include "UnityCG.cginc"
+
+			struct appdata_t {
+				float4 vertex : POSITION;
+				float2 texcoord : TEXCOORD0;
+			};
+
+			struct v2f {
+				float4 vertex : SV_POSITION;
+				half2 texcoord : TEXCOORD0;
+				half2 dist : TEXCOORD1;
+			};
+
+			uniform sampler2D _MainTex;
+			uniform half _Distance;
+			
+			v2f vert (appdata_t v)
+			{
+				v2f o;
+				o.vertex = UnityObjectToClipPos(v.vertex);
+				o.texcoord = v.texcoord;
+				half2 dist = _Distance*(1.0/_ScreenParams.xy);
+				o.dist = half2(dist.x, dist.y*0.707);
+				return o;
+			}
+
+			half4 frag (v2f i) : COLOR
+			{
+				half2 dists[8] = 
+				{ 
+					half2(i.dist.x, 0), half2(-i.dist.x, 0), half2(0, i.dist.x), half2(0, -i.dist.x), 
+					half2(i.dist.y, i.dist.y), half2(i.dist.y, -i.dist.y),
+					half2(-i.dist.y, i.dist.y), half2(-i.dist.y, -i.dist.y)
+				}; 
+
+				half4 sum = 0;
+				
+				sum += tex2D(_MainTex, i.texcoord);
+				sum += tex2D(_MainTex, i.texcoord + dists[0]);
+				sum += tex2D(_MainTex, i.texcoord + dists[1]);
+				sum += tex2D(_MainTex, i.texcoord + dists[2]);
+				sum += tex2D(_MainTex, i.texcoord + dists[3]);
+				sum += tex2D(_MainTex, i.texcoord + dists[4]);
+				sum += tex2D(_MainTex, i.texcoord + dists[5]);
+				sum += tex2D(_MainTex, i.texcoord + dists[6]);
+				sum += tex2D(_MainTex, i.texcoord + dists[7]);
+
+				half4 tex = sum/9.0;
+
+				return tex;
+			}
+		ENDCG
+	}
+}
+
+}