diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index ece72b94b0..17e040806e 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -576,9 +576,20 @@ static std::string get_object_log(GLhandleARB ret)
 //dump shader source for debugging
 void LLShaderMgr::dumpShaderSource(U32 shader_code_count, GLcharARB** shader_code_text)
 {	
-	for (GLuint i = 0; i < shader_code_count; i++)
+	for (U32 i = 0; i < shader_code_count; i++)
 	{
+		GLcharARB *line = shader_code_text[i];
+		size_t     len  = strlen( line );
+		GLcharARB  last = len > 0 ? line[len - 1] : 0;
+
+		// LL_ENDL already outputs a newline so temporarily strip off the end newline to prevent EVERY line outputting an (extra) blank line
+		if (last == '\n')
+		    line[len - 1] = 0;
+
 		LL_SHADER_LOADING_WARNS() << i << ": " << shader_code_text[i] << LL_ENDL;
+
+		if (last == '\n')
+			line[len - 1] = '\n';
 	}
     LL_SHADER_LOADING_WARNS() << LL_ENDL;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
index 9505f2eb74..52c69b46ea 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
@@ -264,8 +264,7 @@ void main()
     tnorm = vary_normal;
 #endif
 
-    norm.xyz = tnorm;
-    norm.xyz = normalize(norm.xyz);
+    norm.xyz = normalize(tnorm.xyz);
 
     vec2 abnormal   = encode_normal(norm.xyz);
 
@@ -277,7 +276,28 @@ void main()
 
     final_color.a = max(final_color.a, emissive_brightness);
 
+    // Texture
+    //     [x] Full Bright Object
+    //     Shininess (specular)
+    //       [X] Texture
+    //       Environment Intensity = 1
+    // NOTE: There are two shaders that are used depending on the EI byte value:
+    //     EI = 0        fullbright
+    //     EI > 0 .. 255 material
+    // When it is passed to us it is normalized.
+    // We can either modify the output environment intensity
+    //   OR
+    // adjust the final color via:
+    //     final_color *= 0.666666;
+    // We remap the environment intensity to closely simulate what non-EEP is doing.
+    //    At midnight the brightness is exact.
+    //    At midday the brightness is very close.
+#ifdef HAS_SKIN
     vec4 final_normal = vec4(abnormal, env_intensity, 0.0);
+#else
+    float ei = env_intensity*0.5 + 0.5;
+    vec4 final_normal = vec4(abnormal, ei, 0.0);
+#endif
     vec4 final_specular = spec;
     
     final_specular.a = specular_color.a;
@@ -316,11 +336,8 @@ void main()
     vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
 
 
-    float da = dot(normalize(norm.xyz), normalize(light_dir.xyz));
-          da = clamp(da, -1.0, 1.0);
-
-    float final_da = da;
-          final_da = clamp(final_da, 0.0, 1.0);
+    float da = dot(norm.xyz, normalize(light_dir.xyz));
+    float final_da = clamp(da, 0.0, 1.0);
 
     float ambient = da;
     ambient *= 0.5;
@@ -458,3 +475,4 @@ vec3 post_atmo = color.rgb;
 #endif
 }
 
+
diff --git a/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl b/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
index d2d839ed05..8fc5d750e3 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/transportF.glsl
@@ -38,8 +38,9 @@ vec3 atmosTransportFrag(vec3 light, vec3 additive, vec3 atten)
     {
         return light * 2.0;
     }
-    light *= atten.r;
-    light += additive;
+    // fullbright responds minimally to atmos scatter effects 
+    light *= min(15.0 * atten.r, 1.0);
+    light += (0.1 * additive);
     return light * 2.0;
 }
 
diff --git a/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl b/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl
index 08eb119510..18705f785f 100644
--- a/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl
+++ b/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl
@@ -38,8 +38,9 @@ vec3 atmosTransportFrag(vec3 light, vec3 additive, vec3 atten)
     {
         return light;
     }
-    light *= atten.r;
-    light += additive;
+    // fullbright responds minimally to atmos scatter effects 
+    light *= min(15.0 * atten.r, 1.0);
+    light += (0.1 * additive);
     return light * 2.0;
 }