git-svn-id: svn://db.shs.com.ru/libs@586 a8b55f48-bf90-11e4-a774-851b48703e85

test/qglview/shaders/ssr_blur.frag

@@ -0,0 +1,38 @@
+#version 150
+
+uniform sampler2D t0;
+uniform float radius = 2;
+uniform vec2 dt;
+
+void main(void) {
+	vec2 tc = qgl_FragTexture.xy;
+	float r = float(radius);
+	vec4 v0 = texture(t0, tc);
+	float rad;
+	float coeff = modf(v0.w, rad) * 1.1;
+	rad /= 10.;
+	rad *= 2;
+	float o = radius * rad, o2 = radius * rad * 2;
+	vec3 scol = (v0.rgb * 3. +
+				 texture(t0, tc + dt * vec2(  o,  0 )).rgb * 2. +
+				 texture(t0, tc + dt * vec2(  0,  o )).rgb * 2. +
+				 texture(t0, tc + dt * vec2( -o, 0  )).rgb * 2. +
+				 texture(t0, tc + dt * vec2(  0,  -o)).rgb * 2. +
+				 texture(t0, tc + dt * vec2(  o,  o )).rgb * 1.5 +
+				 texture(t0, tc + dt * vec2(  o,  -o)).rgb * 1.5 +
+				 texture(t0, tc + dt * vec2( -o, -o )).rgb * 1.5 +
+				 texture(t0, tc + dt * vec2( -o, o  )).rgb * 1.5 +
+				 texture(t0, tc + dt * vec2( o2,  0 )).rgb +
+				 texture(t0, tc + dt * vec2(  0,  o2)).rgb +
+				 texture(t0, tc + dt * vec2(-o2, 0  )).rgb +
+				 texture(t0, tc + dt * vec2(  0, -o2)).rgb/* +
+				 texture(t0, tc + dt * vec2( o2,  o )).rgb +
+				 texture(t0, tc + dt * vec2( o2,  -o)).rgb +
+				 texture(t0, tc + dt * vec2(-o2, -o )).rgb +
+				 texture(t0, tc + dt * vec2(-o2, o  )).rgb +
+				 texture(t0, tc + dt * vec2(  o,  o2)).rgb +
+				 texture(t0, tc + dt * vec2(  o, -o2)).rgb +
+				 texture(t0, tc + dt * vec2( -o, -o2)).rgb +
+				 texture(t0, tc + dt * vec2( -o,  o2)).rgb*/) / 21.;
+	qgl_FragData[0] = vec4(scol, v0.w);
+}