diff --git a/src/distrib/shaders/reflexion_lines.frag b/src/distrib/shaders/reflexion_lines.frag
index 5a21c4a8d..1236e164a 100644
--- a/src/distrib/shaders/reflexion_lines.frag
+++ b/src/distrib/shaders/reflexion_lines.frag
@@ -31,6 +31,11 @@ varying vec3 Normal;
 
 uniform float ScaleFactor;
 uniform float Smoothing;
+uniform float Shading;
+
+float arcSinus(float x) {
+	return x * (1 + x*x * ((1.0/6.0) + x*x * ((3.0/40.0) + (15.0/336.0)*x*x)));
+}
 
 void main (void)
 {
@@ -44,8 +49,14 @@ void main (void)
     reflexionVector.z = 0.5/sqrt(dot(reflexionVector,reflexionVector));
     reflexionVector.xy = (reflexionVector.xy*reflexionVector.z) + 0.5;
     reflexionVector *= 2.0;
-    color = vec4(clamp(0.5 + Smoothing * sin(2.0 * 3.1428 * reflexionVector.x*ScaleFactor), 0.0, 1.0));
-
+//    color = vec4(clamp(0.5 + Smoothing * sin(2.0 * 3.1428 * reflexionVector.x*ScaleFactor), 0.0, 1.0),
+//			clamp(0.5 + Smoothing * sin(2.0 * 3.1428 * reflexionVector.y*ScaleFactor), 0.0, 1.0),
+//			clamp(0.5 + Smoothing * sin(2.0 * 3.1428 * reflexionVector.z*ScaleFactor), 0.0, 1.0),
+//			1.0);
+	
+	float sharpness = 1.0/arcSinus(Smoothing*fwidth(reflexionVector.x)*2.0*ScaleFactor);
+    color = vec4(clamp(0.5 + sharpness * sin(2.0 * 3.1428 * reflexionVector.x*ScaleFactor), 0.0, 1.0));
     color.a = 1.0;
-    gl_FragColor = min(color, vec4(1.0,1.0,1.0,1.0));
+    gl_FragColor = vec4(vec3(sharpness), 1.0);
+	gl_FragColor = clamp(dot(gl_LightSource[0].position.xyz, n)*Shading + (1.0-Shading), 0.0, 1.0) * min(color, vec4(1.0,1.0,1.0,1.0));
 }
diff --git a/src/distrib/shaders/reflexion_lines.gdp b/src/distrib/shaders/reflexion_lines.gdp
index f57a626c3..6cd7e6ad8 100644
--- a/src/distrib/shaders/reflexion_lines.gdp
+++ b/src/distrib/shaders/reflexion_lines.gdp
@@ -42,13 +42,17 @@
   </FPCount>
   <TexturesPlugins NumberOfPlugins="0" />
   <TexturedUsed NumberUsedTU="0" />
-  <UniformVariables NumberOfVariables="1">
+  <UniformVariables NumberOfVariables="3">
     <Uniform0 Type="5" Name="ScaleFactor" ArraySize="1" Widget="2" Min="0" Max="100" Step="1">
-      <Values Value0="5" />
+      <Values Value0="25" />
     </Uniform0>
     
     <Uniform0 Type="5" Name="Smoothing" ArraySize="1" Widget="2" Min="0.5" Max="10" Step="1">
-      <Values Value0="1" />
+      <Values Value0="3" />
+    </Uniform0>
+    
+    <Uniform0 Type="5" Name="Shading" ArraySize="1" Widget="2" Min="0.0" Max="1.0" Step="0.05">
+      <Values Value0="0.8" />
     </Uniform0>
     
   </UniformVariables>
@@ -64,4 +68,4 @@
     <BackMaterial AmbR="0.2" AmbG="0.2" AmbB="0.2" AmbA="1" DifR="0.2" DifG="0.2" DifB="0.2" DifA="1" SpecR="0.2" SpecG="0.2" SpecB="0.2" SpecA="1" EmiR="0.2" EmiG="0.2" EmiB="0.2" EmiA="1" Shininess="0" />
     <PointParameters Size="1" MinSize="0" MaxSize="1" Threshold="1" ConstantAttenuation="1" LinearAttenuation="0" QuadraticAttenuation="0" />
   </BuiltInStates>
-</GLSLang>
\ No newline at end of file
+</GLSLang>