diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
index 4005d5064d1bd912d80137ad03c494e25950d995..523e7f9e04ac02aa2260086e0aee7c278563bae9 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
@@ -56,7 +56,7 @@ void main()
 	color.rgb *= vertex_color.rgb;
 	
 	vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;	
-	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a);
+	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low
 
 	color.rgb = pow(color.rgb,vec3(2.2f,2.2f,2.2f));
 	
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index b38f488a1fc820f34d50818e15b4f9379f3a429e..547a159f3a37e9ecf88f439032db0515afc3588b 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -162,7 +162,7 @@ vec3 post_diffuse = color.rgb;
             vec3 env_vec = env_mat * refnormpersp;
             vec3 reflected_color = textureCube(environmentMap, env_vec).rgb;
 #if !defined(SUNLIGHT_KILL)
-            color = mix(color.rgb, reflected_color, envIntensity); 
+            color = mix(color.rgb, reflected_color, envIntensity*0.75); // MAGIC NUMBER SL-12574; ALM: On, Quality <= Mid+
 #endif
         }
         
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
index 64ecf1f3929f53c7f4a87cc73801ac5dc75131c5..567811cd75afec893025e9a282017bcdbd2aa4ad 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
@@ -44,7 +44,7 @@ void fullbright_shiny_lighting()
 	color.rgb *= vertex_color.rgb;
 	
 	vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;	
-	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a);
+	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low
 
 	color.rgb = fullbrightShinyAtmosTransport(color.rgb);
 
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightShinyF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightShinyF.glsl
index 5bbd71002d895da3fbf2f98d6b41029c18334dcb..f621a0078502f0c0bfed2498e2b038608493477a 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightShinyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightShinyF.glsl
@@ -45,7 +45,7 @@ void shiny_lighting()
 	color.rgb *= vertex_color.rgb;
 	
 	vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;	
-	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a);
+	color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low
 
 	color.rgb = atmosLighting(color.rgb);
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index da78691861d647848e72de4445c39c593befcfff..15a3bc349a0287fac8634146981e4cc789b687ce 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -169,7 +169,7 @@ vec3 post_diffuse = color.rgb;
             vec3 env_vec = env_mat * refnormpersp;
             vec3 reflected_color = textureCube(environmentMap, env_vec).rgb;
 #if !defined(SUNLIGHT_KILL)
-            color = mix(color.rgb, reflected_color, envIntensity); 
+            color = mix(color.rgb, reflected_color, envIntensity*0.75); // MAGIC NUMBER SL-12574; ALM: On, Quality >= High
 #endif
         }