Generic blur effect

Effects/blur.eff

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+<?xml version="1.0" encoding="utf-8"?>
+<PropertyList>
+	<name>Effects/blur</name>
+	<parameters>
+		<blurOffset_x>0.0</blurOffset_x>
+		<blurOffset_y>0.0</blurOffset_y>
+		<buffer-name></buffer-name>
+	</parameters>
+	<technique n="11">
+		<pass>
+			<texture-unit>
+				<unit>0</unit>
+				<type>buffer</type>
+				<name><use>buffer-name</use></name>
+			</texture-unit>
+			<program>
+				<vertex-shader>Shaders/blur.vert</vertex-shader>
+				<fragment-shader>Shaders/blur.frag</fragment-shader>
+			</program>
+			<uniform>
+				<name>input_tex</name>
+				<type>sampler-2d</type>
+				<value type="int">0</value>
+			</uniform>
+			<uniform>
+				<name>blurOffset_x</name>
+				<type>float</type>
+				<value type="float"><use>blurOffset_x</use></value>
+			</uniform>
+			<uniform>
+				<name>blurOffset_y</name>
+				<type>float</type>
+				<value type="float"><use>blurOffset_y</use></value>
+			</uniform>
+		</pass>
+	</technique>
+</PropertyList>

Shaders/blur.frag

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+#version 120
+uniform sampler2D input_tex;
+uniform vec2 fg_BufferSize;
+uniform float blurOffset_x;
+uniform float blurOffset_y;
+const float f[5] = float[](0.0, 1.0, 2.0, 3.0, 4.0);
+const float w[5] = float[](0.2270270270, 0.1945945946, 0.1216216216, 0.0540540541, 0.0162162162 );
+void main() {
+	vec2 blurOffset = vec2(blurOffset_x, blurOffset_y) / fg_BufferSize;
+    vec2 coords = gl_TexCoord[0].xy;
+    vec4 color = vec4( texture2D( input_tex, coords + f[0] * blurOffset ).rgb * w[0], 1.0 );
+    for (int i=1; i<5; ++i ) {
+        color.rgb += texture2D( input_tex, coords - f[i] * blurOffset ).rgb * w[i];
+        color.rgb += texture2D( input_tex, coords + f[i] * blurOffset ).rgb * w[i];
+    }
+    gl_FragColor = color;
+}

Shaders/blur.vert

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+void main() {
+    gl_Position = gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+}