post processing

data/shader/postprocess.frag

@@ -0,0 +1,26 @@
+#version 120
+
+uniform sampler2D tex0;
+uniform sampler2D tex1;
+
+varying vec3 vertex;
+varying vec2 uv;
+
+const int gaussRadius = 11;
+const float gaussFilter[gaussRadius] = float[gaussRadius](
+	0.0402,0.0623,0.0877,0.1120,0.1297,0.1362,0.1297,0.1120,0.0877,0.0623,0.0402
+);
+
+uniform vec2 scale;
+
+void main()
+{
+	vec2 texCoord = uv.xy - float(int(gaussRadius/2)) * scale;
+	vec3 color = vec3(0.0, 0.0, 0.0); 
+	for (int i=0; i<gaussRadius; ++i) { 
+		color += gaussFilter[i] * texture2D(tex0, texCoord).xyz;
+		texCoord += scale;
+	}
+
+  gl_FragColor = vec4(color, 1.0);
+}

data/shader/postprocess.vert

@@ -0,0 +1,12 @@
+#version 120
+uniform vec2 uvScale;
+
+varying vec3 vertex;
+varying vec2 uv;
+
+void main()
+{
+  gl_Position = gl_Vertex;
+  vertex = gl_Position.xyz;
+  uv = uvScale * (0.5 + vertex.xy / 2.0);
+}