diff --git a/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering.frag b/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering.frag
index 7e1c542f0..8f5957ca6 100644
--- a/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering.frag
+++ b/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering.frag
@@ -29,7 +29,8 @@ void main(void)
         res /= m_NbSamples;
 
         //Blend the original color with the averaged pixels
-        gl_FragColor =mix( colorRes, res, m_LightDensity);
+        float mean = (res.r + res.g + res.b)/3;
+        fragColor =mix(colorRes ,mix( colorRes, res, m_LightDensity),mean);  
     }else{
         gl_FragColor= texture2D(m_Texture,texCoord);
     }
diff --git a/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering15.frag b/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering15.frag
index bf72fd9d5..8db6d9b04 100644
--- a/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering15.frag
+++ b/jme3-effects/src/main/resources/Common/MatDefs/Post/LightScattering15.frag
@@ -33,7 +33,8 @@ void main(void)
         res /= m_NbSamples;
 
         //Blend the original color with the averaged pixels
-        fragColor = mix( colorRes, res, m_LightDensity);
+        float mean = (res.r + res.g + res.b)/3;
+        fragColor =mix(colorRes ,mix( colorRes, res, m_LightDensity),mean);  
     }else{
         fragColor = getColor(m_Texture,texCoord);
     }