Merge branch 'master' into DRTVWR-521-maint

# Conflicts:
#	doc/contributions.txt

66 files changed, 1465 insertions, 1018 deletions

diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 397691d7cf..fc8d8b805b 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -586,6 +586,7 @@ set(viewer_SOURCE_FILES
     llsyntaxid.cpp
     llsyswellitem.cpp
     llsyswellwindow.cpp
+    lltelemetry.cpp
     llteleporthistory.cpp
     llteleporthistorystorage.cpp
     lltextureatlas.cpp
diff --git a/indra/newview/VIEWER_VERSION.txt b/indra/newview/VIEWER_VERSION.txt
index 427dc381ad..e786022da5 100644
--- a/indra/newview/VIEWER_VERSION.txt
+++ b/indra/newview/VIEWER_VERSION.txt
@@ -1 +1 @@
-6.4.19
+6.4.20
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 85431c5f84..2ad7815881 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -6597,7 +6597,7 @@
     <key>Value</key>
     <integer>1</integer>
   </map>
-  <key>MemoryFailurePreventionEnabled</key>
+  <key>MemoryFailurePreventionEnabled</key> <!-- deprecated, only used for obsolete-in-2020 Intel 965 Express GPU -->
   <map>
     <key>Comment</key>
     <string>If set, the viewer will quit to avoid crash when memory failure happens</string>
@@ -9124,7 +9124,7 @@
     <key>Type</key>
     <string>F32</string>
     <key>Value</key>
-    <real>0.03</real>
+    <real>0.1</real>
   </map>
   <key>RenderDebugPipeline</key>
     <map>
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl b/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl
index b7036e02cf..8e0a001403 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl
@@ -1,24 +1,24 @@
-/**
+/** 
  * @file WLCloudsV.glsl
  *
  * $LicenseInfo:firstyear=2005&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2005, Linden Research, Inc.
- *
+ * 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- *
+ * 
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- *
+ * 
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
+ * 
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
@@ -33,26 +33,26 @@ ATTRIBUTE vec2 texcoord0;
 ///////////////////////////////////////////////////////////////////////////////
 
 // Output parameters
-VARYING vec4  vary_CloudColorSun;
-VARYING vec4  vary_CloudColorAmbient;
+VARYING vec4 vary_CloudColorSun;
+VARYING vec4 vary_CloudColorAmbient;
 VARYING float vary_CloudDensity;
 
-VARYING vec2  vary_texcoord0;
-VARYING vec2  vary_texcoord1;
-VARYING vec2  vary_texcoord2;
-VARYING vec2  vary_texcoord3;
+VARYING vec2 vary_texcoord0;
+VARYING vec2 vary_texcoord1;
+VARYING vec2 vary_texcoord2;
+VARYING vec2 vary_texcoord3;
 VARYING float altitude_blend_factor;
 
 // Inputs
 uniform vec3 camPosLocal;
 
-uniform vec4  lightnorm;
-uniform vec4  sunlight_color;
-uniform vec4  moonlight_color;
-uniform int   sun_up_factor;
-uniform vec4  ambient_color;
-uniform vec4  blue_horizon;
-uniform vec4  blue_density;
+uniform vec4 lightnorm;
+uniform vec4 sunlight_color;
+uniform vec4 moonlight_color;
+uniform int sun_up_factor;
+uniform vec4 ambient_color;
+uniform vec4 blue_horizon;
+uniform vec4 blue_density;
 uniform float haze_horizon;
 uniform float haze_density;
 
@@ -60,7 +60,7 @@ uniform float cloud_shadow;
 uniform float density_multiplier;
 uniform float max_y;
 
-uniform vec4  glow;
+uniform vec4 glow;
 uniform float sun_moon_glow_factor;
 
 uniform vec4 cloud_color;
@@ -75,53 +75,53 @@ uniform float cloud_scale;
 //       indra\newview\llsettingsvo.cpp
 void main()
 {
-    // World / view / projection
-    gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
+	// World / view / projection
+	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
 
-    // Texture coords
+	// Texture coords
     // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll
     vary_texcoord0 = vec2(-texcoord0.x, texcoord0.y);  // See: LLSettingsVOSky::applySpecial
 
-    vary_texcoord0.xy -= 0.5;
-    vary_texcoord0.xy /= cloud_scale;
-    vary_texcoord0.xy += 0.5;
+	vary_texcoord0.xy -= 0.5;
+	vary_texcoord0.xy /= cloud_scale;
+	vary_texcoord0.xy += 0.5;
 
-    vary_texcoord1 = vary_texcoord0;
-    vary_texcoord1.x += lightnorm.x * 0.0125;
-    vary_texcoord1.y += lightnorm.z * 0.0125;
+	vary_texcoord1 = vary_texcoord0;
+	vary_texcoord1.x += lightnorm.x * 0.0125;
+	vary_texcoord1.y += lightnorm.z * 0.0125;
 
-    vary_texcoord2 = vary_texcoord0 * 16.;
-    vary_texcoord3 = vary_texcoord1 * 16.;
+	vary_texcoord2 = vary_texcoord0 * 16.;
+	vary_texcoord3 = vary_texcoord1 * 16.;
 
-    // Get relative position
+	// Get relative position
     vec3 rel_pos = position.xyz - camPosLocal.xyz + vec3(0, 50, 0);
 
     altitude_blend_factor = clamp((rel_pos.y + 512.0) / max_y, 0.0, 1.0);
 
-    // Set altitude
+	// Set altitude
     if (rel_pos.y > 0)
-    {
+	{
         rel_pos *= (max_y / rel_pos.y);
-    }
+	}
     if (rel_pos.y < 0)
-    {
-        altitude_blend_factor = 0;  // SL-11589 Fix clouds drooping below horizon
+	{
+		altitude_blend_factor = 0; // SL-11589 Fix clouds drooping below horizon
         rel_pos *= (-32000. / rel_pos.y);
-    }
+	}
 
-    // Can normalize then
+	// Can normalize then
     vec3  rel_pos_norm = normalize(rel_pos);
     float rel_pos_len  = length(rel_pos);
 
-    // Initialize temp variables
-    vec4 sunlight = sunlight_color;
-    vec4 light_atten;
+	// Initialize temp variables
+	vec4 sunlight = sunlight_color;
+	vec4 light_atten;
 
-    // Sunlight attenuation effect (hue and brightness) due to atmosphere
-    // this is used later for sunlight modulation at various altitudes
+	// Sunlight attenuation effect (hue and brightness) due to atmosphere
+	// this is used later for sunlight modulation at various altitudes
     light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y);
 
-    // Calculate relative weights
+	// Calculate relative weights
     vec4 combined_haze = abs(blue_density) + vec4(abs(haze_density));
     vec4 blue_weight   = blue_density / combined_haze;
     vec4 haze_weight   = haze_density / combined_haze;
@@ -130,63 +130,64 @@ void main()
     float off_axis = 1.0 / max(1e-6, max(0., rel_pos_norm.y) + lightnorm.y);
     sunlight *= exp(-light_atten * off_axis);
 
-    // Distance
+	// Distance
     float density_dist = rel_pos_len * density_multiplier;
 
     // Transparency (-> combined_haze)
     // ATI Bugfix -- can't store combined_haze*density_dist in a variable because the ati
-    // compiler gets confused.
+	// compiler gets confused.
     combined_haze = exp(-combined_haze * density_dist);
 
-    // Compute haze glow
+	// Compute haze glow
     float haze_glow = 1.0 - dot(rel_pos_norm, lightnorm.xyz);
     // haze_glow is 0 at the sun and increases away from sun
     haze_glow = max(haze_glow, .001);
-    // Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
+		// Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
     haze_glow *= glow.x;
-    // Higher glow.x gives dimmer glow (because next step is 1 / "angle")
+		// Higher glow.x gives dimmer glow (because next step is 1 / "angle")
     haze_glow = pow(haze_glow, glow.z);
-    // glow.z should be negative, so we're doing a sort of (1 / "angle") function
+		// glow.z should be negative, so we're doing a sort of (1 / "angle") function
 
     haze_glow *= sun_moon_glow_factor;
 
-    // Add "minimum anti-solar illumination"
+	// Add "minimum anti-solar illumination"
     // For sun, add to glow.  For moon, remove glow entirely. SL-13768
     haze_glow = (sun_moon_glow_factor < 1.0) ? 0.0 : (haze_glow + 0.25);
 
-    // Increase ambient when there are more clouds
-    vec4 tmpAmbient = ambient_color;
-    tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5;
+	// Increase ambient when there are more clouds
+	vec4 tmpAmbient = ambient_color;
+	tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; 
 
-    // Dim sunlight by cloud shadow percentage
-    sunlight *= (1. - cloud_shadow);
+	// Dim sunlight by cloud shadow percentage
+	sunlight *= (1. - cloud_shadow);
 
-    // Haze color below cloud
+	// Haze color below cloud
     vec4 additiveColorBelowCloud =
         (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient));
 
-    // CLOUDS
+	// CLOUDS
+    sunlight = sunlight_color;  // SL-14707 reset color -- Clouds are unusually dim in EEP
     off_axis = 1.0 / max(1e-6, lightnorm.y * 2.);
     sunlight *= exp(-light_atten * off_axis);
 
-    // Cloud color out
+	// Cloud color out
     vary_CloudColorSun     = (sunlight * haze_glow) * cloud_color;
-    vary_CloudColorAmbient = tmpAmbient * cloud_color;
-
-    // Attenuate cloud color by atmosphere
+	vary_CloudColorAmbient = tmpAmbient * cloud_color;
+	
+	// Attenuate cloud color by atmosphere
     combined_haze = sqrt(combined_haze);  // less atmos opacity (more transparency) below clouds
     vary_CloudColorSun *= combined_haze;
     vary_CloudColorAmbient *= combined_haze;
     vec4 oHazeColorBelowCloud = additiveColorBelowCloud * (1. - combined_haze);
 
-    // Make a nice cloud density based on the cloud_shadow value that was passed in.
-    vary_CloudDensity = 2. * (cloud_shadow - 0.25);
+	// Make a nice cloud density based on the cloud_shadow value that was passed in.
+	vary_CloudDensity = 2. * (cloud_shadow - 0.25);
 
-    // Combine these to minimize register use
-    vary_CloudColorAmbient += oHazeColorBelowCloud;
+	// Combine these to minimize register use
+	vary_CloudColorAmbient += oHazeColorBelowCloud;
 
-    // needs this to compile on mac
-    // vary_AtmosAttenuation = vec3(0.0,0.0,0.0);
+	// needs this to compile on mac
+	//vary_AtmosAttenuation = vec3(0.0,0.0,0.0);
 
-    // END CLOUDS
+	// END CLOUDS
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
index 6b36d00f97..9fcee04c32 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl
@@ -64,28 +64,27 @@ void main()
 #else
 	vec4 color = texture2D(diffuseMap, vary_texcoord0.xy);
 #endif
-
+	
 	color.rgb *= vertex_color.rgb;
 
 	// SL-9632 HUDs are affected by Atmosphere
 	if (no_atmo == 0)
 	{
-		vec3 sunlit;
-		vec3 amblit;
-		vec3 additive;
-		vec3 atten;
+	vec3 sunlit;
+	vec3 amblit;
+	vec3 additive;
+	vec3 atten;
 		vec3 pos = vary_position.xyz/vary_position.w;
 
-		calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten, false);
-
-		vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;
-		float env_intensity = vertex_color.a;
+	calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten, false);
+	
+	vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;	
+	float env_intensity = vertex_color.a;
 
 	//color.rgb = srgb_to_linear(color.rgb);
 		color.rgb = mix(color.rgb, envColor.rgb, env_intensity);
-
-		color.rgb = fullbrightAtmosTransportFrag(color.rgb, additive, atten);
-		color.rgb = fullbrightScaleSoftClip(color.rgb);
+	color.rgb = fullbrightAtmosTransportFrag(color.rgb, additive, atten);
+	color.rgb = fullbrightScaleSoftClip(color.rgb);
 	}
 
 /*
diff --git a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
index d29e8a9423..eb6e56e718 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
@@ -40,6 +40,8 @@ uniform sampler2D specularMap;
 
 VARYING vec2 vary_texcoord0;
 
+vec3 linear_to_srgb(vec3 c);
+
 void main() 
 {
 	vec4 col = texture2D(diffuseMap, vary_texcoord0.xy);
@@ -52,6 +54,7 @@ void main()
 	vec4 norm = texture2D(normalMap,   vary_texcoord0.xy);
 	vec4 spec = texture2D(specularMap, vary_texcoord0.xy);
 
+	col.rgb = linear_to_srgb(col.rgb);
 	frag_data[0] = vec4(col.rgb, 0.0);
 	frag_data[1] = spec;
 	frag_data[2] = vec4(norm.xy,0,0);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
index 80d19102b6..e1f7031af6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl
@@ -406,6 +406,8 @@ void main()
 
     vec3 light = vec3(0, 0, 0);
     
+    final_specular.rgb = srgb_to_linear(final_specular.rgb); // SL-14035
+
 #define LIGHT_LOOP(i) light.rgb += calcPointLightOrSpotLight(light_diffuse[i].rgb, npos, diffuse.rgb, final_specular, pos.xyz, norm.xyz, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z, glare, light_attenuation[i].w );
 
     LIGHT_LOOP(1)
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
index 8c402fcb54..09c47165dd 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
@@ -73,9 +73,7 @@ void main()
     vec3 norm = getNorm(frag.xy);
 
     vec4 spec = texture2DRect(specularRect, frag.xy);
-    spec.rgb  = srgb_to_linear(spec.rgb);
     vec3 diff = texture2DRect(diffuseRect, frag.xy).rgb;
-    diff.rgb  = srgb_to_linear(diff.rgb);
 
     float noise = texture2D(noiseMap, frag.xy / 128.0).b;
     vec3  npos  = normalize(-pos);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 9bba45bc4e..ec3fb9c543 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -182,10 +182,6 @@ void main()
 		
 		
 	vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
-    // SL-12005 Projector light pops as we get closer, more objectionable than being in wrong color space.
-    //          We can't switch to linear here unless we do it everywhere*
-	// *gbuffer is sRGB, convert to linear whenever sampling from it
-    diff_tex.rgb = srgb_to_linear(diff_tex.rgb);
 
 	vec3 dlit = vec3(0, 0, 0);
 	
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
index d805c9ea48..18616a9bb3 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
@@ -90,7 +90,6 @@ void main()
     float noise = texture2D(noiseMap, frag.xy/128.0).b;
     
     vec3 col = texture2DRect(diffuseRect, frag.xy).rgb;
-    col.rgb = srgb_to_linear(col.rgb);
 
     float fa = falloff+1.0;
     float dist_atten = clamp(1.0-(dist-1.0*(1.0-fa))/fa, 0.0, 1.0);
@@ -127,7 +126,7 @@ void main()
     {
         discard;
     }
-//col.rgb = vec3(0);        
+
     frag_color.rgb = col;   
     frag_color.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index f80f1a985a..7f2c603f87 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -90,7 +90,7 @@ void main()
     vec4 diffuse = texture2DRect(diffuseRect, tc);
 
     //convert to gamma space
-    //diffuse.rgb = linear_to_srgb(diffuse.rgb);
+    diffuse.rgb = linear_to_srgb(diffuse.rgb); // SL-14035
 
     vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
     vec3 color = vec3(0);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl b/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl
index 454af2a9bc..b2fa5d8a25 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl
@@ -49,10 +49,6 @@ void main()
     vec4 sunDiscB = texture2D(altDiffuseMap, vary_texcoord0.xy);
     vec4 c     = mix(sunDiscA, sunDiscB, blend_factor);
 
-    c.rgb = srgb_to_linear(c.rgb);
-    c.rgb = clamp(c.rgb, vec3(0), vec3(1));
-    c.rgb = pow(c.rgb, vec3(0.7f));
-
     //c.rgb = fullbrightAtmosTransport(c.rgb);
     c.rgb = fullbrightScaleSoftClip(c.rgb);
 
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
index 6f7e777d23..5e966293c6 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl
@@ -48,15 +48,15 @@ void fullbright_shiny_lighting()
 {
 	vec4 color = diffuseLookup(vary_texcoord0.xy);
 	color.rgb *= vertex_color.rgb;
-
+	
 	// SL-9632 HUDs are affected by Atmosphere
 	if (no_atmo == 0)
 	{
-		vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;
-		color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low
+	vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb;	
+	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);
-		color.rgb = fullbrightScaleSoftClip(color.rgb);
+	color.rgb = fullbrightShinyAtmosTransport(color.rgb);
+	color.rgb = fullbrightScaleSoftClip(color.rgb);
 	}
 /*
 	// NOTE: HUD objects will be full bright. Uncomment if you want "some" environment lighting effecting these HUD objects.
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
index a0699affbf..3b4d358cfa 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
@@ -1,30 +1,37 @@
-/** 
+/**
  * @file class1\windlight\atmosphericVarsF.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2007, Linden Research, Inc.
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- * 
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
+ *
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
 
-vec3 getPositionEye()
-{
-	return vec3(0,0,0);
-}
+VARYING vec3 vary_AdditiveColor;
+VARYING vec3 vary_AtmosAttenuation;
+
+vec3 getAmblitColor() { return vec3(0, 0, 0); }
+
+vec3 getAdditiveColor() { return vary_AdditiveColor; }
+
+vec3 getAtmosAttenuation() { return vec3(vary_AtmosAttenuation); }
+
+vec3 getSunlitColor() { return vec3(0, 0, 0); }
+
+vec3 getPositionEye() { return vec3(0, 0, 0); }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
index bd1d150fc8..1fea2c3628 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
@@ -1,36 +1,56 @@
-/** 
+/**
  * @file class1\windlight\atmosphericVarsV.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2007, Linden Research, Inc.
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- * 
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
+ *
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
 
+VARYING vec3 vary_AdditiveColor;
+VARYING vec3 vary_AtmosAttenuation;
 
-vec3 getPositionEye()
+vec3 additive_color;
+vec3 atmos_attenuation;
+vec3 sunlit_color;
+vec3 amblit_color;
+vec3 position_eye;
+
+vec3 getSunlitColor() { return sunlit_color; }
+void setSunlitColor(vec3 v) { sunlit_color = v; }
+
+vec3 getAdditiveColor() { return additive_color; }
+void setAdditiveColor(vec3 v)
 {
-	return vec3(0,0,0);
+    additive_color     = v;
+    vary_AdditiveColor = v;
 }
 
-void setPositionEye(vec3 v)
+vec3 getAmblitColor() { return amblit_color; }
+void setAmblitColor(vec3 v) { amblit_color = v; }
+
+vec3 getAtmosAttenuation() { return atmos_attenuation; }
+void setAtmosAttenuation(vec3 v)
 {
-	
+    atmos_attenuation     = v;
+    vary_AtmosAttenuation = v;
 }
+
+vec3 getPositionEye() { return position_eye; }
+void setPositionEye(vec3 v) { position_eye = v; }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl
index 5dc086ab1e..f83434b7ec 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl
@@ -1,33 +1,38 @@
-/** 
+/**
  * @file class1\windlight\atmosphericVarsWaterF.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2007, Linden Research, Inc.
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- * 
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
+ *
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
 
 VARYING vec3 vary_PositionEye;
+VARYING vec3 vary_AdditiveColor;
+VARYING vec3 vary_AtmosAttenuation;
+
+vec3 getSunlitColor() { return vec3(0, 0, 0); }
+
+vec3 getAmblitColor() { return vec3(0, 0, 0); }
+
+vec3 getAdditiveColor() { return vary_AdditiveColor; }
 
-vec3 getPositionEye()
-{
-	return vary_PositionEye;
-}
+vec3 getAtmosAttenuation() { return vary_AtmosAttenuation; }
 
+vec3 getPositionEye() { return vary_PositionEye; }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl
index e59eca265a..65d1176777 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl
@@ -1,37 +1,51 @@
-/** 
+/**
  * @file class1\windlight\atmosphericVarsWaterV.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2007, Linden Research, Inc.
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- * 
+ *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
+ *
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
- 
+
 VARYING vec3 vary_PositionEye;
+VARYING vec3 vary_AdditiveColor;
+VARYING vec3 vary_AtmosAttenuation;
 
-vec3 getPositionEye()
-{
-	return vary_PositionEye;
-}
+vec3 atmos_attenuation;
+vec3 sunlit_color;
+vec3 amblit_color;
+
+vec3 getSunlitColor() { return sunlit_color; }
+void setSunlitColor(vec3 v) { sunlit_color = v; }
+
+vec3 getAmblitColor() { return amblit_color; }
+void setAmblitColor(vec3 v) { amblit_color = v; }
 
-void setPositionEye(vec3 v)
+vec3 getAdditiveColor() { return vary_AdditiveColor; }
+void setAdditiveColor(vec3 v) { vary_AdditiveColor = v; }
+
+vec3 getAtmosAttenuation() { return atmos_attenuation; }
+void setAtmosAttenuation(vec3 v)
 {
-	vary_PositionEye = v;
+    atmos_attenuation     = v;
+    vary_AtmosAttenuation = v;
 }
+
+vec3 getPositionEye() { return vary_PositionEye; }
+void setPositionEye(vec3 v) { vary_PositionEye = v; }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl b/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl
index b9ae7a0226..5a41dc644a 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl
@@ -51,7 +51,6 @@ void main()
 // SL-9806 stars poke through
 //    c.a *= sun_fade;
 
-    c.rgb = pow(c.rgb, vec3(0.7f));
     c.rgb = fullbrightAtmosTransport(c.rgb);
     c.rgb = fullbrightScaleSoftClip(c.rgb);
     frag_color = c;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 5d7a28c359..1b7a1cc6ec 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -191,10 +191,6 @@ void main()
     float da = dot(norm, lv);
         
     vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
-    // SL-12005 Projector light pops as we get closer, more objectionable than being in wrong color space.
-    //          We can't switch to linear here unless we do it everywhere*
-    // *gbuffer IS sRGB, convert to linear since this shader outputs linear
-    diff_tex.rgb = srgb_to_linear(diff_tex.rgb);
  
     vec4 spec = texture2DRect(specularRect, frag.xy);
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl
index 1485c515a4..6841a8194f 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl
@@ -73,7 +73,21 @@ uniform float ice_level;
 
 vec3 rainbow(float d)
 {
-    d         = clamp(d, -1.0, 0.0);
+    // d is the dot product of view and sun directions, so ranging -1.0..1.0
+    // 'interesting' values of d are the range -0.75..-0.825, when view is nearly opposite of sun vec
+    // Rainbox texture mode is GL_REPEAT, so tc of -.75 is equiv to 0.25, -0.825 equiv to 0.175.
+
+    // SL-13629 Rainbow texture has colors within the correct .175...250 range, but order is inverted.
+    // Rather than replace the texture, we mirror and translate the y tc to keep the colors within the
+    // interesting range, but in reversed order:  i.e. d = (1 - d) - 1.575
+    d = clamp(-0.575 - d, 0.0, 1.0);
+
+    // With the colors in the lower 1/4 of the texture, inverting the coords leaves most of it inaccessible.
+    // So, we can stretch the texcoord above the colors (ie > 0.25) to fill the entire remaining coordinate
+    // space. This improves gradation, reduces banding within the rainbow interior. (1-0.25) / (0.425/0.25) = 4.2857
+    float interior_coord = max(0.0, d - 0.25) * 4.2857;
+    d = clamp(d, 0.0, 0.25) + interior_coord;
+
     float rad = (droplet_radius - 5.0f) / 1024.0f;
     return pow(texture2D(rainbow_map, vec2(rad, d)).rgb, vec3(1.8)) * moisture_level;
 }
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index f4db53e0b7..7700d16007 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -87,8 +87,9 @@ void main()
     float light_gamma = 1.0 / 1.3;
     da                = pow(da, light_gamma);
 
-    vec4 diffuse = texture2DRect(diffuseRect, tc);
-    vec4 spec    = texture2DRect(specularRect, vary_fragcoord.xy);
+    vec4 diffuse     = texture2DRect(diffuseRect, tc);
+         diffuse.rgb = linear_to_srgb(diffuse.rgb); // SL-14025
+    vec4 spec        = texture2DRect(specularRect, vary_fragcoord.xy);
 
     vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
     scol_ambocc      = pow(scol_ambocc, vec2(light_gamma));
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index 5ab0b5c5b4..774f537821 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -189,7 +189,7 @@ void main()
 	lv = normalize(lv);
 	float da = dot(norm, lv);
 		
-	vec3 diff_tex = srgb_to_linear(texture2DRect(diffuseRect, frag.xy).rgb);
+	vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb;
 	vec4 spec = texture2DRect(specularRect, frag.xy);
 	vec3 dlit = vec3(0, 0, 0);
 
diff --git a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl
index d758f85d71..07733bda18 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl
@@ -1,5 +1,5 @@
 /** 
- * @file class2\wl\atmosphericVars.glsl
+ * @file class2\wl\atmosphericVarsF.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
diff --git a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
index 75bf8730df..fa928d993e 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
@@ -26,9 +26,9 @@
 /*[EXTRA_CODE_HERE]*/ 
 
 #ifdef DEFINE_GL_FRAGCOLOR
-out vec4 frag_data[3];
+out vec4 frag_color;
 #else
-#define frag_data gl_FragData
+#define frag_color gl_FragColor
 #endif
 
 /////////////////////////////////////////////////////////////////////////
@@ -126,8 +126,6 @@ void main()
     color.rgb = scaleSoftClip(color.rgb);
 
     /// Gamma correct for WL (soft clip effect).
-    frag_data[0] = vec4(color.rgb, alpha1);
-    frag_data[1] = vec4(0.0,0.0,0.0,0.0);
-    frag_data[2] = vec4(0,0,0,1);
+    frag_color = vec4(color.rgb, alpha1);
 }
 
diff --git a/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl b/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl
index 1f881eb44b..97ffa9feef 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl
@@ -1,24 +1,24 @@
-/**
+/** 
  * @file class2\wl\cloudsV.glsl
  *
  * $LicenseInfo:firstyear=2005&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2005, Linden Research, Inc.
- *
+ * 
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- *
+ * 
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
- *
+ * 
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
+ * 
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
@@ -33,26 +33,26 @@ ATTRIBUTE vec2 texcoord0;
 ///////////////////////////////////////////////////////////////////////////////
 
 // Output parameters
-VARYING vec4  vary_CloudColorSun;
-VARYING vec4  vary_CloudColorAmbient;
+VARYING vec4 vary_CloudColorSun;
+VARYING vec4 vary_CloudColorAmbient;
 VARYING float vary_CloudDensity;
 
-VARYING vec2  vary_texcoord0;
-VARYING vec2  vary_texcoord1;
-VARYING vec2  vary_texcoord2;
-VARYING vec2  vary_texcoord3;
+VARYING vec2 vary_texcoord0;
+VARYING vec2 vary_texcoord1;
+VARYING vec2 vary_texcoord2;
+VARYING vec2 vary_texcoord3;
 VARYING float altitude_blend_factor;
 
 // Inputs
 uniform vec3 camPosLocal;
 
-uniform vec4  lightnorm;
-uniform vec4  sunlight_color;
-uniform vec4  moonlight_color;
-uniform int   sun_up_factor;
-uniform vec4  ambient_color;
-uniform vec4  blue_horizon;
-uniform vec4  blue_density;
+uniform vec4 lightnorm;
+uniform vec4 sunlight_color;
+uniform vec4 moonlight_color;
+uniform int sun_up_factor;
+uniform vec4 ambient_color;
+uniform vec4 blue_horizon;
+uniform vec4 blue_density;
 uniform float haze_horizon;
 uniform float haze_density;
 
@@ -60,7 +60,7 @@ uniform float cloud_shadow;
 uniform float density_multiplier;
 uniform float max_y;
 
-uniform vec4  glow;
+uniform vec4 glow;
 uniform float sun_moon_glow_factor;
 
 uniform vec4 cloud_color;
@@ -75,8 +75,8 @@ uniform float cloud_scale;
 //       indra\newview\llsettingsvo.cpp
 void main()
 {
-    // World / view / projection
-    gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
+	// World / view / projection
+	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
 
     // Texture coords
     // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll
@@ -93,7 +93,7 @@ void main()
     vary_texcoord2 = vary_texcoord0 * 16.;
     vary_texcoord3 = vary_texcoord1 * 16.;
 
-    // Get relative position
+	// Get relative position
     vec3 rel_pos = position.xyz - camPosLocal.xyz + vec3(0, 50, 0);
 
     // fade clouds beyond a certain point so the bottom of the sky dome doesn't look silly at high altitude
@@ -101,27 +101,27 @@ void main()
 
     // Adj position vector to clamp altitude
     if (rel_pos.y > 0.)
-    {
+	{
         rel_pos *= (max_y / rel_pos.y);
-    }
+	}
     if (rel_pos.y < 0.)
-    {
+	{
         rel_pos *= (-32000. / rel_pos.y);
-    }
+	}
 
-    // Can normalize then
+	// Can normalize then
     vec3  rel_pos_norm = normalize(rel_pos);
     float rel_pos_len  = length(rel_pos);
 
-    // Initialize temp variables
-    vec4 sunlight = sunlight_color;
-    vec4 light_atten;
+	// Initialize temp variables
+	vec4 sunlight = sunlight_color;
+	vec4 light_atten;
 
-    // Sunlight attenuation effect (hue and brightness) due to atmosphere
-    // this is used later for sunlight modulation at various altitudes
+	// Sunlight attenuation effect (hue and brightness) due to atmosphere
+	// this is used later for sunlight modulation at various altitudes
     light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y);
 
-    // Calculate relative weights
+	// Calculate relative weights
     vec4 combined_haze = abs(blue_density) + vec4(abs(haze_density));
     vec4 blue_weight   = blue_density / combined_haze;
     vec4 haze_weight   = haze_density / combined_haze;
@@ -130,63 +130,64 @@ void main()
     float off_axis = 1.0 / max(1e-6, max(0., rel_pos_norm.y) + lightnorm.y);
     sunlight *= exp(-light_atten * off_axis);
 
-    // Distance
+	// Distance
     float density_dist = rel_pos_len * density_multiplier;
 
     // Transparency (-> combined_haze)
     // ATI Bugfix -- can't store combined_haze*density_dist in a variable because the ati
-    // compiler gets confused.
+	// compiler gets confused.
     combined_haze = exp(-combined_haze * density_dist);
 
-    // Compute haze glow
+	// Compute haze glow
     float haze_glow = 1.0 - dot(rel_pos_norm, lightnorm.xyz);
     // haze_glow is 0 at the sun and increases away from sun
     haze_glow = max(haze_glow, .001);
-    // Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
+		// Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
     haze_glow *= glow.x;
-    // Higher glow.x gives dimmer glow (because next step is 1 / "angle")
+		// Higher glow.x gives dimmer glow (because next step is 1 / "angle")
     haze_glow = pow(haze_glow, glow.z);
-    // glow.z should be negative, so we're doing a sort of (1 / "angle") function
+		// glow.z should be negative, so we're doing a sort of (1 / "angle") function
 
     haze_glow *= sun_moon_glow_factor;
 
-    // Add "minimum anti-solar illumination"
+	// Add "minimum anti-solar illumination"
     // For sun, add to glow.  For moon, remove glow entirely. SL-13768
     haze_glow = (sun_moon_glow_factor < 1.0) ? 0.0 : (haze_glow + 0.25);
 
-    // Increase ambient when there are more clouds
-    vec4 tmpAmbient = ambient_color;
-    tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5;
+	// Increase ambient when there are more clouds
+	vec4 tmpAmbient = ambient_color;
+	tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; 
 
-    // Dim sunlight by cloud shadow percentage
-    sunlight *= (1. - cloud_shadow);
+	// Dim sunlight by cloud shadow percentage
+	sunlight *= (1. - cloud_shadow);
 
-    // Haze color below cloud
+	// Haze color below cloud
     vec4 additiveColorBelowCloud =
         (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient));
 
-    // CLOUDS
+	// CLOUDS
+    sunlight = sunlight_color;  // SL-14707 reset color -- Clouds are unusually dim in EEP
     off_axis = 1.0 / max(1e-6, lightnorm.y * 2.);
     sunlight *= exp(-light_atten * off_axis);
 
-    // Cloud color out
+	// Cloud color out
     vary_CloudColorSun     = (sunlight * haze_glow) * cloud_color;
-    vary_CloudColorAmbient = tmpAmbient * cloud_color;
-
-    // Attenuate cloud color by atmosphere
+	vary_CloudColorAmbient = tmpAmbient * cloud_color;
+	
+	// Attenuate cloud color by atmosphere
     combined_haze = sqrt(combined_haze);  // less atmos opacity (more transparency) below clouds
     vary_CloudColorSun *= combined_haze;
     vary_CloudColorAmbient *= combined_haze;
     vec4 oHazeColorBelowCloud = additiveColorBelowCloud * (1. - combined_haze);
 
-    // Make a nice cloud density based on the cloud_shadow value that was passed in.
-    vary_CloudDensity = 2. * (cloud_shadow - 0.25);
+	// Make a nice cloud density based on the cloud_shadow value that was passed in.
+	vary_CloudDensity = 2. * (cloud_shadow - 0.25);
 
-    // Combine these to minimize register use
-    vary_CloudColorAmbient += oHazeColorBelowCloud;
+	// Combine these to minimize register use
+	vary_CloudColorAmbient += oHazeColorBelowCloud;
 
-    // needs this to compile on mac
-    // vary_AtmosAttenuation = vec3(0.0,0.0,0.0);
+	// needs this to compile on mac
+	//vary_AtmosAttenuation = vec3(0.0,0.0,0.0);
 
-    // END CLOUDS
+	// END CLOUDS
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl b/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl
deleted file mode 100644
index 8bb3f07fc6..0000000000
--- a/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl
+++ /dev/null
@@ -1,117 +0,0 @@
-/** 
- * @file lightInfo.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2007, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-struct DirectionalLightInfo
-{
-    vec4 pos;
-    float depth;
-    vec4 normal;
-    vec3 normalizedLightDirection;
-    vec3 normalizedToLight;
-    float lightIntensity;
-    vec3 lightDiffuseColor;
-    float specExponent;
-    float shadow;
-};
-
-struct SpotLightInfo
-{
-    vec4 pos;
-    float depth;
-    vec4 normal;
-    vec3 normalizedLightDirection;
-    vec3 normalizedToLight;
-    float lightIntensity;
-    float attenuation;
-    float distanceToLight;
-    vec3 lightDiffuseColor;
-    float innerHalfAngleCos;
-    float outerHalfAngleCos;
-    float spotExponent;
-    float specExponent;
-    float shadow;
-};
-
-struct PointLightInfo
-{
-    vec4 pos;
-    float depth;
-    vec4 normal;
-    vec3 normalizedToLight;
-    float lightIntensity;
-    float attenuation;
-    float distanceToLight;
-    vec3 lightDiffuseColor;
-    float lightRadius;
-    float specExponent;
-    vec3 worldspaceLightDirection;
-    float shadow;
-};
-
-float attenuate(float attenuationSelection, float distanceToLight)
-{
-// LLRENDER_REVIEW
-// sh/could eventually consume attenuation func defined in texture
-    return (attenuationSelection == 0.0f) ? 1.0f : // none
-           (attenuationSelection <  1.0f) ? (1.0f / distanceToLight) : // linear atten 
-           (attenuationSelection <  2.0f) ? (1.0f / (distanceToLight*distanceToLight)) // quadratic atten
-										  : (1.0f / (distanceToLight*distanceToLight*distanceToLight));	// cubic atten    
-}
-
-
-vec3 lightDirectional(struct DirectionalLightInfo dli)
-{
-    float lightIntensity = dli.lightIntensity;
-	lightIntensity *= dot(dli.normal.xyz, dli.normalizedLightDirection);
-    //lightIntensity *= directionalShadowSample(vec4(dli.pos.xyz, 1.0f), dli.depth, dli.directionalShadowMap, dli.directionalShadowMatrix);
-	return lightIntensity * dli.lightDiffuseColor;
-}
-
-
-vec3 lightSpot(struct SpotLightInfo sli)    
-{
-	float penumbraRange = (sli.outerHalfAngleCos - sli.innerHalfAngleCos);
-    float coneAngleCos = max(dot(sli.normalizedLightDirection, sli.normalizedToLight), 0.0);
-	float coneAttenFactor = (coneAngleCos <= sli.outerHalfAngleCos) ? 1.0f : pow(smoothstep(1,0, sli.outerHalfAngleCos / penumbraRange), sli.spotExponent);
-    float distanceAttenuation = attenuate(sli.attenuation, sli.distanceToLight);
-    float lightIntensity = sli.lightIntensity;
-    lightIntensity *= distanceAttenuation;
-	lightIntensity *= max(dot(sli.normal.xyz, sli.normalizedLightDirection), 0.0);
-	lightIntensity *= coneAttenFactor;
-    lightIntensity *= sli.shadow;
-	return lightIntensity * sli.lightDiffuseColor;
-}
-
-vec3 lightPoint(struct PointLightInfo pli)
-{
-    float padRadius = pli.lightRadius * 0.1; // distance for which to perform smoothed dropoff past light radius
-	float distanceAttenuation =	attenuate(pli.attenuation, pli.distanceToLight);
-    float lightIntensity = pli.lightIntensity;
-    lightIntensity*= distanceAttenuation;    
-	lightIntensity *= clamp((padRadius - pli.distanceToLight + pli.lightRadius) / padRadius, 0.0, 1.0);
-    lightIntensity *= pli.shadow;
-    lightIntensity *= max(dot(pli.normal.xyz, pli.normalizedToLight), 0.0);
-	return lightIntensity * pli.lightDiffuseColor;
-}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
index 6de01cb667..a0b082ed7c 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
@@ -56,8 +56,23 @@ vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 dir
 vec3 ColorFromRadiance(vec3 radiance);
 vec3 rainbow(float d)
 {
-   float rad = (droplet_radius - 5.0f) / 1024.0f;
-   return pow(texture2D(rainbow_map, vec2(rad, d)).rgb, vec3(1.8)) * moisture_level;
+    // d is the dot product of view and sun directions, so ranging -1.0..1.0
+    // 'interesting' values of d are the range -0.75..-0.825, when view is nearly opposite of sun vec
+    // Rainbox texture mode is GL_REPEAT, so tc of -.75 is equiv to 0.25, -0.825 equiv to 0.175.
+
+    // SL-13629 Rainbow texture has colors within the correct .175...250 range, but order is inverted.
+    // Rather than replace the texture, we mirror and translate the y tc to keep the colors within the
+    // interesting range, but in reversed order:  i.e. d = (1 - d) - 1.575
+    d = clamp(-0.575 - d, 0.0, 1.0);
+
+    // With the colors in the lower 1/4 of the texture, inverting the coords leaves most of it inaccessible.
+    // So, we can stretch the texcoord above the colors (ie > 0.25) to fill the entire remaining coordinate
+    // space. This improves gradation, reduces banding within the rainbow interior. (1-0.25) / (0.425/0.25) = 4.2857
+    float interior_coord = max(0.0, d - 0.25) * 4.2857;
+    d = clamp(d, 0.0, 0.25) + interior_coord;
+
+    float rad = (droplet_radius - 5.0f) / 1024.0f;
+    return pow(texture2D(rainbow_map, vec2(rad, d)).rgb, vec3(1.8)) * moisture_level;
 }
 
 vec3 halo22(float d)
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index bd859ca23f..7fafb86ec3 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -90,6 +90,7 @@
 #include "llsdutil_math.h"
 #include "lllocationhistory.h"
 #include "llfasttimerview.h"
+#include "lltelemetry.h"
 #include "llvector4a.h"
 #include "llviewermenufile.h"
 #include "llvoicechannel.h"
@@ -256,9 +257,9 @@
 // define a self-registering event API object
 #include "llappviewerlistener.h"
 
-#if (LL_LINUX || LL_SOLARIS) && LL_GTK
+#if LL_LINUX && LL_GTK
 #include "glib.h"
-#endif // (LL_LINUX || LL_SOLARIS) && LL_GTK
+#endif // (LL_LINUX) && LL_GTK
 
 #if LL_MSVC
 // disable boost::lexical_cast warning
@@ -1097,6 +1098,46 @@ bool LLAppViewer::init()
 		}
 	}
 
+#if LL_WINDOWS && ADDRESS_SIZE == 64
+    if (gGLManager.mIsIntel)
+    {
+        // Check intel driver's version
+        // Ex: "3.1.0 - Build 8.15.10.2559";
+        std::string version = ll_safe_string((const char *)glGetString(GL_VERSION));
+
+        const boost::regex is_intel_string("[0-9].[0-9].[0-9] - Build [0-9]{1,2}.[0-9]{2}.[0-9]{2}.[0-9]{4}");
+
+        if (boost::regex_search(version, is_intel_string))
+        {
+            // Valid string, extract driver version
+            std::size_t found = version.find("Build ");
+            std::string driver = version.substr(found + 6);
+            S32 v1, v2, v3, v4;
+            S32 count = sscanf(driver.c_str(), "%d.%d.%d.%d", &v1, &v2, &v3, &v4);
+            if (count > 0 && v1 <= 10)
+            {
+                LL_INFOS("AppInit") << "Detected obsolete intel driver: " << driver << LL_ENDL;
+                LLUIString details = LLNotifications::instance().getGlobalString("UnsupportedIntelDriver");
+                std::string gpu_name = ll_safe_string((const char *)glGetString(GL_RENDERER));
+                details.setArg("[VERSION]", driver);
+                details.setArg("[GPUNAME]", gpu_name);
+                S32 button = OSMessageBox(details.getString(),
+                                          LLStringUtil::null,
+                                          OSMB_YESNO);
+                if (OSBTN_YES == button && gViewerWindow)
+                {
+                    std::string url = LLWeb::escapeURL(LLTrans::getString("IntelDriverPage"));
+                    if (gViewerWindow->getWindow())
+                    {
+                        gViewerWindow->getWindow()->spawnWebBrowser(url, false);
+                    }
+                }
+            }
+        }
+    }
+#endif
+
+    // Obsolete? mExpectedGLVersion is always zero
 #if LL_WINDOWS
 	if (gGLManager.mGLVersion < LLFeatureManager::getInstance()->getExpectedGLVersion())
 	{
@@ -1328,39 +1369,8 @@ void LLAppViewer::initMaxHeapSize()
 
 	//F32 max_heap_size_gb = llmin(1.6f, (F32)gSavedSettings.getF32("MaxHeapSize")) ;
 	F32Gigabytes max_heap_size_gb = (F32Gigabytes)gSavedSettings.getF32("MaxHeapSize") ;
-	BOOL enable_mem_failure_prevention = (BOOL)gSavedSettings.getBOOL("MemoryFailurePreventionEnabled") ;
 
-	LLMemory::initMaxHeapSizeGB(max_heap_size_gb, enable_mem_failure_prevention) ;
-}
-
-void LLAppViewer::checkMemory()
-{
-	const static F32 MEMORY_CHECK_INTERVAL = 1.0f ; //second
-	//const static F32 MAX_QUIT_WAIT_TIME = 30.0f ; //seconds
-	//static F32 force_quit_timer = MAX_QUIT_WAIT_TIME + MEMORY_CHECK_INTERVAL ;
-
-	if(!gGLManager.mDebugGPU)
-	{
-		return ;
-	}
-
-	if(MEMORY_CHECK_INTERVAL > mMemCheckTimer.getElapsedTimeF32())
-	{
-		return ;
-	}
-	mMemCheckTimer.reset() ;
-
-		//update the availability of memory
-		LLMemory::updateMemoryInfo() ;
-
-	bool is_low = LLMemory::isMemoryPoolLow() ;
-
-	LLPipeline::throttleNewMemoryAllocation(is_low) ;
-
-	if(is_low)
-	{
-		LLMemory::logMemoryInfo() ;
-	}
+	LLMemory::initMaxHeapSizeGB(max_heap_size_gb);
 }
 
 static LLTrace::BlockTimerStatHandle FTM_MESSAGES("System Messages");
@@ -1439,9 +1449,6 @@ bool LLAppViewer::doFrame()
 	//clear call stack records
 	LL_CLEAR_CALLSTACKS();
 
-	//check memory availability information
-	checkMemory() ;
-
 	{
 		pingMainloopTimeout("Main:MiscNativeWindowEvents");
 
@@ -1676,6 +1683,8 @@ bool LLAppViewer::doFrame()
 		LL_INFOS() << "Exiting main_loop" << LL_ENDL;
 	}
 
+    LLPROFILE_UPDATE();
+
 	return ! LLApp::isRunning();
 }
 
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index d24cdcedc7..5ceb540784 100644
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -235,7 +235,6 @@ private:
 	bool initConfiguration(); // Initialize settings from the command line/config file.
 	void initStrings();       // Initialize LLTrans machinery
 	bool initCache(); // Initialize local client cache.
-	void checkMemory() ;
 
 	// We have switched locations of both Mac and Windows cache, make sure
 	// files migrate and old cache is cleared out.
@@ -314,8 +313,6 @@ private:
 
     LLAllocator mAlloc;
 
-	LLFrameTimer mMemCheckTimer;
-
 	// llcorehttp library init/shutdown helper
 	LLAppCoreHttp mAppCoreHttp;
 
diff --git a/indra/newview/llappviewerlinux.cpp b/indra/newview/llappviewerlinux.cpp
index 6f32aab851..dc487967fc 100644
--- a/indra/newview/llappviewerlinux.cpp
+++ b/indra/newview/llappviewerlinux.cpp
@@ -73,10 +73,6 @@ static void exceptionTerminateHandler()
 
 int main( int argc, char **argv ) 
 {
-#if LL_SOLARIS && defined(__sparc)
-	asm ("ta\t6");		 // NOTE:  Make sure memory alignment is enforced on SPARC
-#endif
-
 	gArgC = argc;
 	gArgV = argv;
 
@@ -336,8 +332,6 @@ void LLAppViewerLinux::initCrashReporting(bool reportFreeze)
 	cmd += gDirUtilp->getDirDelimiter();
 #if LL_LINUX
 	cmd += "linux-crash-logger.bin";
-#elif LL_SOLARIS
-	cmd += "solaris-crash-logger";
 #else
 # error Unknown platform
 #endif
@@ -394,9 +388,6 @@ bool LLAppViewerLinux::beingDebugged()
 {
 	static enum {unknown, no, yes} debugged = unknown;
 
-#if LL_SOLARIS
-	return debugged == no;	// BUG: fix this for Solaris
-#else
 	if (debugged == unknown)
 	{
 		pid_t ppid = getppid();
@@ -431,7 +422,6 @@ bool LLAppViewerLinux::beingDebugged()
 	}
 
 	return debugged == yes;
-#endif
 }
 
 void LLAppViewerLinux::initLoggingAndGetLastDuration()
diff --git a/indra/newview/llconversationmodel.cpp b/indra/newview/llconversationmodel.cpp
index 4cfde21e32..a685639427 100644
--- a/indra/newview/llconversationmodel.cpp
+++ b/indra/newview/llconversationmodel.cpp
@@ -380,7 +380,7 @@ LLConversationItemParticipant* LLConversationItemSession::findParticipant(const
 	for (iter = mChildren.begin(); iter != mChildren.end(); iter++)
 	{
 		participant = dynamic_cast<LLConversationItemParticipant*>(*iter);
-		if (participant->hasSameValue(participant_id))
+		if (participant && participant->hasSameValue(participant_id))
 		{
 			break;
 		}
@@ -491,7 +491,7 @@ const bool LLConversationItemSession::getTime(F64& time) const
 	{
 		participant = dynamic_cast<LLConversationItemParticipant*>(*iter);
 		F64 participant_time;
-		if (participant->getTime(participant_time))
+		if (participant && participant->getTime(participant_time))
 		{
 			has_time = true;
 			most_recent_time = llmax(most_recent_time,participant_time);
diff --git a/indra/newview/llconversationview.cpp b/indra/newview/llconversationview.cpp
index df16868132..65cec68884 100644
--- a/indra/newview/llconversationview.cpp
+++ b/indra/newview/llconversationview.cpp
@@ -696,10 +696,13 @@ void LLConversationViewParticipant::refresh()
 {
 	// Refresh the participant view from its model data
 	LLConversationItemParticipant* participant_model = dynamic_cast<LLConversationItemParticipant*>(getViewModelItem());
-	participant_model->resetRefresh();
-	
-	// *TODO: We should also do something with vmi->isModerator() to echo that state in the UI somewhat
-	mSpeakingIndicator->setIsModeratorMuted(participant_model->isModeratorMuted());
+    if (participant_model)
+    {
+        participant_model->resetRefresh();
+
+        // *TODO: We should also do something with vmi->isModerator() to echo that state in the UI somewhat
+        mSpeakingIndicator->setIsModeratorMuted(participant_model->isModeratorMuted());
+    }
 
 	// Do the regular upstream refresh
 	LLFolderViewItem::refresh();
diff --git a/indra/newview/lldirpicker.cpp b/indra/newview/lldirpicker.cpp
index b8e6e81ee6..01790ad19e 100644
--- a/indra/newview/lldirpicker.cpp
+++ b/indra/newview/lldirpicker.cpp
@@ -37,7 +37,7 @@
 #include "llviewercontrol.h"
 #include "llwin32headerslean.h"
 
-#if LL_LINUX || LL_SOLARIS || LL_DARWIN
+#if LL_LINUX || LL_DARWIN
 # include "llfilepicker.h"
 #endif
 
@@ -187,7 +187,7 @@ std::string LLDirPicker::getDirName()
 	return mFilePicker->getFirstFile();
 }
 
-#elif LL_LINUX || LL_SOLARIS
+#elif LL_LINUX
 
 LLDirPicker::LLDirPicker() :
 	mFileName(NULL),
diff --git a/indra/newview/lldirpicker.h b/indra/newview/lldirpicker.h
index c7dba12130..52febe4523 100644
--- a/indra/newview/lldirpicker.h
+++ b/indra/newview/lldirpicker.h
@@ -78,7 +78,7 @@ private:
 	void buildDirname( void );
 	bool check_local_file_access_enabled();
 
-#if LL_LINUX || LL_SOLARIS || LL_DARWIN
+#if LL_LINUX || LL_DARWIN
 	// On Linux we just implement LLDirPicker on top of LLFilePicker
 	LLFilePicker *mFilePicker;
 #endif
diff --git a/indra/newview/lldrawable.cpp b/indra/newview/lldrawable.cpp
index 5034bd1c5e..507af56cb0 100644
--- a/indra/newview/lldrawable.cpp
+++ b/indra/newview/lldrawable.cpp
@@ -912,22 +912,18 @@ void LLDrawable::updateDistance(LLCamera& camera, bool force_update)
             if (volume->getAvatar())
             {
                 const LLVector3* av_box = volume->getAvatar()->getLastAnimExtents();
-                LLVector3d cam_pos = gAgent.getPosGlobalFromAgent(LLViewerCamera::getInstance()->getOrigin());
-                LLVector3 cam_region_pos = LLVector3(cam_pos - volume->getRegion()->getOriginGlobal());
-                
-                LLVector3 cam_to_box_offset = point_to_box_offset(cam_region_pos, av_box);
+                LLVector3 cam_pos_from_agent = LLViewerCamera::getInstance()->getOrigin();
+                LLVector3 cam_to_box_offset = point_to_box_offset(cam_pos_from_agent, av_box);
                 mDistanceWRTCamera = llmax(0.01f, ll_round(cam_to_box_offset.magVec(), 0.01f));
                 LL_DEBUGS("DynamicBox") << volume->getAvatar()->getFullname() 
                                         << " pos (ignored) " << pos
-                                        << " cam pos " << cam_pos
-                                        << " cam region pos " << cam_region_pos
+                                        << " cam pos " << cam_pos_from_agent
                                         << " box " << av_box[0] << "," << av_box[1] 
                                         << " -> dist " << mDistanceWRTCamera
                                         << LL_ENDL;
                 mVObjp->updateLOD();
                 return;
             }
-            
 		}
 		else
 		{
diff --git a/indra/newview/lldrawpoolavatar.cpp b/indra/newview/lldrawpoolavatar.cpp
index 55b3864b6d..687b13d2c8 100644
--- a/indra/newview/lldrawpoolavatar.cpp
+++ b/indra/newview/lldrawpoolavatar.cpp
@@ -2129,7 +2129,7 @@ void LLDrawPoolAvatar::renderRigged(LLVOAvatar* avatar, U32 type, bool glow)
 
             if (mat)
             {                
-                switch (LLMaterial::eDiffuseAlphaMode(mat->getDiffuseAlphaModeRender()))
+                switch (LLMaterial::eDiffuseAlphaMode(mat->getDiffuseAlphaMode()))
                 {
                     case LLMaterial::DIFFUSE_ALPHA_MODE_MASK:
                     {
@@ -2267,7 +2267,7 @@ void LLDrawPoolAvatar::renderRigged(LLVOAvatar* avatar, U32 type, bool glow)
 				sVertexProgram->uniform4f(LLShaderMgr::SPECULAR_COLOR, col.mV[0], col.mV[1], col.mV[2], spec);
 				sVertexProgram->uniform1f(LLShaderMgr::ENVIRONMENT_INTENSITY, env);
 
-				if (mat->getDiffuseAlphaModeRender() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
+				if (mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
 				{
                     F32 cutoff = mat->getAlphaMaskCutoff()/255.f;
 					sVertexProgram->setMinimumAlpha(cutoff);
diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index d4e7f1600e..0c3d8f3098 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -226,7 +226,7 @@ void LLDrawPoolWLSky::renderSkyHaze(const LLVector3& camPosLocal, F32 camHeightL
     }
 }
 
-void LLDrawPoolWLSky::renderStars(void) const
+void LLDrawPoolWLSky::renderStars(const LLVector3& camPosLocal) const
 {
     LLGLSPipelineBlendSkyBox gls_skybox(true, false);
 	
@@ -266,6 +266,7 @@ void LLDrawPoolWLSky::renderStars(void) const
     }
 
 	gGL.pushMatrix();
+	gGL.translatef(camPosLocal.mV[0], camPosLocal.mV[1], camPosLocal.mV[2]);
 	gGL.rotatef(gFrameTimeSeconds*0.01f, 0.f, 0.f, 1.f);
 	if (LLGLSLShader::sNoFixedFunction)
 	{
@@ -296,7 +297,7 @@ void LLDrawPoolWLSky::renderStars(void) const
 	}
 }
 
-void LLDrawPoolWLSky::renderStarsDeferred(void) const
+void LLDrawPoolWLSky::renderStarsDeferred(const LLVector3& camPosLocal) const
 {
 	LLGLSPipelineBlendSkyBox gls_sky(true, false);
 
@@ -337,6 +338,8 @@ void LLDrawPoolWLSky::renderStarsDeferred(void) const
         gGL.getTexUnit(1)->bind(tex_b);
     }
 
+	gGL.pushMatrix();
+	gGL.translatef(camPosLocal.mV[0], camPosLocal.mV[1], camPosLocal.mV[2]);
     gDeferredStarProgram.uniform1f(LLShaderMgr::BLEND_FACTOR, blend_factor);
 
     if (LLPipeline::sReflectionRender)
@@ -355,6 +358,8 @@ void LLDrawPoolWLSky::renderStarsDeferred(void) const
     gGL.getTexUnit(1)->unbind(LLTexUnit::TT_TEXTURE);
 
     gDeferredStarProgram.unbind();
+
+	gGL.popMatrix();
 }
 
 void LLDrawPoolWLSky::renderSkyCloudsDeferred(const LLVector3& camPosLocal, F32 camHeightLocal, LLGLSLShader* cloudshader) const
@@ -601,7 +606,7 @@ void LLDrawPoolWLSky::renderDeferred(S32 pass)
     if (gPipeline.canUseWindLightShaders())
     {
         renderSkyHazeDeferred(origin, camHeightLocal);
-        renderStarsDeferred();
+        renderStarsDeferred(origin);
         renderHeavenlyBodies();
         renderSkyCloudsDeferred(origin, camHeightLocal, cloud_shader);
     }
@@ -620,7 +625,7 @@ void LLDrawPoolWLSky::render(S32 pass)
     LLVector3 const & origin = LLViewerCamera::getInstance()->getOrigin();
     
 	renderSkyHaze(origin, camHeightLocal);    
-    renderStars();
+    renderStars(origin);
     renderHeavenlyBodies();	
 	renderSkyClouds(origin, camHeightLocal, cloud_shader);
 
diff --git a/indra/newview/lldrawpoolwlsky.h b/indra/newview/lldrawpoolwlsky.h
index a4f176d6db..324886ed42 100644
--- a/indra/newview/lldrawpoolwlsky.h
+++ b/indra/newview/lldrawpoolwlsky.h
@@ -78,8 +78,8 @@ private:
 	void renderSkyHazeDeferred(const LLVector3& camPosLocal, F32 camHeightLocal) const;
     void renderSkyCloudsDeferred(const LLVector3& camPosLocal, F32 camHeightLocal, LLGLSLShader* cloudshader) const;
 
-    void renderStarsDeferred(void) const;
-	void renderStars(void) const;
+    void renderStarsDeferred(const LLVector3& camPosLocal) const;
+	void renderStars(const LLVector3& camPosLocal) const;
 	void renderHeavenlyBodies();    
 };
 
diff --git a/indra/newview/lldynamictexture.cpp b/indra/newview/lldynamictexture.cpp
index 89c20904c1..8b8273d183 100644
--- a/indra/newview/lldynamictexture.cpp
+++ b/indra/newview/lldynamictexture.cpp
@@ -56,13 +56,6 @@ LLViewerDynamicTexture::LLViewerDynamicTexture(S32 width, S32 height, S32 compon
 {
 	llassert((1 <= components) && (components <= 4));
 
-	if(gGLManager.mDebugGPU)
-	{
-		if(components == 3)
-		{
-			mComponents = 4 ; //convert to 32bits.
-		}
-	}
 	generateGLTexture();
 
 	llassert( 0 <= order && order < ORDER_COUNT );
@@ -211,7 +204,7 @@ void LLViewerDynamicTexture::postRender(BOOL success)
 BOOL LLViewerDynamicTexture::updateAllInstances()
 {
 	sNumRenders = 0;
-	if (gGLManager.mIsDisabled || LLPipeline::sMemAllocationThrottled)
+	if (gGLManager.mIsDisabled)
 	{
 		return TRUE;
 	}
diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp
index 01d8b6775b..4a802ad9aa 100644
--- a/indra/newview/llface.cpp
+++ b/indra/newview/llface.cpp
@@ -1165,7 +1165,7 @@ bool LLFace::canRenderAsMask()
 	}
 	
 	LLMaterial* mat = te->getMaterialParams();
-	if (mat && mat->getDiffuseAlphaModeRender() == LLMaterial::DIFFUSE_ALPHA_MODE_BLEND)
+	if (mat && mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_BLEND)
 	{
 		return false;
 	}
@@ -1412,7 +1412,7 @@ BOOL LLFace::getGeometryVolume(const LLVolume& volume,
 			}
 			else
 			{
-				if (!mat || mat->getDiffuseAlphaModeRender() != LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
+				if (!mat || mat->getDiffuseAlphaMode() != LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
 				{
 					shiny_in_alpha = true;
 				}
diff --git a/indra/newview/llfeaturemanager.cpp b/indra/newview/llfeaturemanager.cpp
index dc9816c9f7..e6bbe234b3 100644
--- a/indra/newview/llfeaturemanager.cpp
+++ b/indra/newview/llfeaturemanager.cpp
@@ -755,12 +755,7 @@ void LLFeatureManager::applyBaseMasks()
 		maskFeatures("RAM256MB");
 	}
 	
-#if LL_SOLARIS && defined(__sparc) 	//  even low MHz SPARCs are fast
-#error The 800 is hinky. Would something like a LL_MIN_MHZ make more sense here?
-	if (gSysCPU.getMHz() < 800)
-#else
 	if (gSysCPU.getMHz() < 1100)
-#endif
 	{
 		maskFeatures("CPUSlow");
 	}
diff --git a/indra/newview/llfilepicker.cpp b/indra/newview/llfilepicker.cpp
index b6fd70452e..3669fb1eeb 100644
--- a/indra/newview/llfilepicker.cpp
+++ b/indra/newview/llfilepicker.cpp
@@ -40,7 +40,7 @@
 #include "llwindowsdl.h" // for some X/GTK utils to help with filepickers
 #endif // LL_SDL
 
-#if LL_LINUX || LL_SOLARIS
+#if LL_LINUX
 #include "llhttpconstants.h"    // file picker uses some of thes constants on Linux
 #endif
 
@@ -939,7 +939,7 @@ BOOL LLFilePicker::getSaveFile(ESaveFilter filter, const std::string& filename,
 }
 //END LL_DARWIN
 
-#elif LL_LINUX || LL_SOLARIS
+#elif LL_LINUX
 
 # if LL_GTK
 
@@ -1504,4 +1504,4 @@ BOOL LLFilePicker::getMultipleOpenFiles( ELoadFilter filter, bool blocking)
 	return FALSE;
 }
 
-#endif // LL_LINUX || LL_SOLARIS
+#endif // LL_LINUX
diff --git a/indra/newview/llfloaterimcontainer.cpp b/indra/newview/llfloaterimcontainer.cpp
index 8d38a5743b..9c84fa1991 100644
--- a/indra/newview/llfloaterimcontainer.cpp
+++ b/indra/newview/llfloaterimcontainer.cpp
@@ -59,7 +59,9 @@
 #include "boost/foreach.hpp"
 
 
-const S32 EVENTS_PER_IDLE_LOOP = 100;
+const S32 EVENTS_PER_IDLE_LOOP_CURRENT_SESSION = 80;
+const S32 EVENTS_PER_IDLE_LOOP_BACKGROUND = 40;
+const F32 EVENTS_PER_IDLE_LOOP_MIN_PERCENTAGE = 0.01f; // process a minimum of 1% of total events per frame
 
 //
 // LLFloaterIMContainer
@@ -426,8 +428,11 @@ void LLFloaterIMContainer::processParticipantsStyleUpdate()
 		while (current_participant_model != end_participant_model)
 		{
 			LLConversationItemParticipant* participant_model = dynamic_cast<LLConversationItemParticipant*>(*current_participant_model);
-			// Get the avatar name for this participant id from the cache and update the model
-			participant_model->updateName();
+            if (participant_model)
+            {
+                // Get the avatar name for this participant id from the cache and update the model
+                participant_model->updateName();
+            }
 			// Next participant
 			current_participant_model++;
 		}
@@ -474,8 +479,11 @@ void LLFloaterIMContainer::idleUpdate()
                 while (current_participant_model != end_participant_model)
                 {
                     LLConversationItemParticipant* participant_model = dynamic_cast<LLConversationItemParticipant*>(*current_participant_model);
-                    participant_model->setModeratorOptionsVisible(is_moderator);
-                    participant_model->setGroupBanVisible(can_ban && participant_model->getUUID() != gAgentID);
+                    if (participant_model)
+                    {
+                        participant_model->setModeratorOptionsVisible(is_moderator);
+                        participant_model->setGroupBanVisible(can_ban && participant_model->getUUID() != gAgentID);
+                    }
 
                     current_participant_model++;
                 }
@@ -508,20 +516,49 @@ void LLFloaterIMContainer::idleUpdate()
 
 void LLFloaterIMContainer::idleProcessEvents()
 {
-	if (!mConversationEventQueue.empty())
-	{
-		S32 events_to_handle = llmin((S32)mConversationEventQueue.size(), EVENTS_PER_IDLE_LOOP);
-		for (S32 i = 0; i < events_to_handle; i++)
-		{
-			handleConversationModelEvent(mConversationEventQueue.back());
-			mConversationEventQueue.pop_back();
-		}
-	}
+    LLUUID current_session_id = getSelectedSession();
+    conversations_items_deque::iterator iter = mConversationEventQueue.begin();
+    conversations_items_deque::iterator end = mConversationEventQueue.end();
+    while (iter != end)
+    {
+        std::deque<LLSD> &events = iter->second;
+        if (!events.empty())
+        {
+            S32 events_to_handle;
+            S32 query_size = (S32)events.size();
+            if (current_session_id == iter->first)
+            {
+                events_to_handle = EVENTS_PER_IDLE_LOOP_CURRENT_SESSION;
+            }
+            else
+            {
+                events_to_handle = EVENTS_PER_IDLE_LOOP_BACKGROUND;
+            }
+
+            if (events_to_handle <= query_size)
+            {
+                // Some groups can be very large and can generate huge amount of updates, scale processing up to keep up
+                events_to_handle = llmax(events_to_handle, (S32)(query_size * EVENTS_PER_IDLE_LOOP_MIN_PERCENTAGE));
+            }
+            else
+            {
+                events_to_handle = query_size;
+            }
+
+            for (S32 i = 0; i < events_to_handle; i++)
+            {
+                handleConversationModelEvent(events.back());
+                events.pop_back();
+            }
+        }
+        iter++;
+    }
 }
 
 bool LLFloaterIMContainer::onConversationModelEvent(const LLSD& event)
 {
-	mConversationEventQueue.push_front(event);
+	LLUUID id = event.get("session_uuid").asUUID();
+	mConversationEventQueue[id].push_front(event);
 	return true;
 }
 
@@ -1834,6 +1871,8 @@ bool LLFloaterIMContainer::removeConversationListItem(const LLUUID& uuid, bool c
 	// Suppress the conversation items and widgets from their respective maps
 	mConversationsItems.erase(uuid);
 	mConversationsWidgets.erase(uuid);
+	// Clear event query (otherwise reopening session in some way can bombard session with stale data)
+	mConversationEventQueue.erase(uuid);
 	
 	// Don't let the focus fall IW, select and refocus on the first conversation in the list
 	if (change_focus)
diff --git a/indra/newview/llfloaterimcontainer.h b/indra/newview/llfloaterimcontainer.h
index 468b47f1f1..b4a9d377ab 100644
--- a/indra/newview/llfloaterimcontainer.h
+++ b/indra/newview/llfloaterimcontainer.h
@@ -229,9 +229,10 @@ private:
 	conversations_widgets_map mConversationsWidgets;
 	LLConversationViewModel mConversationViewModel;
 	LLFolderView* mConversationsRoot;
-	LLEventStream mConversationsEventStream; 
+	LLEventStream mConversationsEventStream;
 
-	std::deque<LLSD> mConversationEventQueue;
+	typedef std::map<LLUUID, std::deque<LLSD> > conversations_items_deque;
+	conversations_items_deque mConversationEventQueue;
 
 	LLTimer mParticipantRefreshTimer;
 };
diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index e7f428c06a..7541bb5efe 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -497,7 +497,10 @@ void LLFloaterIMSessionTab::buildConversationViewParticipant()
 	while (current_participant_model != end_participant_model)
 	{
 		LLConversationItem* participant_model = dynamic_cast<LLConversationItem*>(*current_participant_model);
-		addConversationViewParticipant(participant_model);
+        if (participant_model)
+        {
+            addConversationViewParticipant(participant_model);
+        }
 		current_participant_model++;
 	}
 }
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
index 999e4a9582..d9edd4dc30 100644
--- a/indra/newview/llfloatermodelpreview.cpp
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -911,7 +911,7 @@ BOOL LLFloaterModelPreview::handleScrollWheel(S32 x, S32 y, S32 clicks)
     {
         LLFloaterModelUploadBase::handleScrollWheel(x, y, clicks);
     }
-    return TRUE;
+	return TRUE;
 }
 
 /*virtual*/
@@ -1292,47 +1292,47 @@ void LLFloaterModelPreview::onMouseCaptureLostModelPreview(LLMouseHandler* handl
 void LLFloaterModelPreview::addStringToLog(const std::string& message, const LLSD& args, bool flash, S32 lod)
 {
     if (sInstance && sInstance->hasString(message))
-    {
+	{
         std::string str;
         switch (lod)
-        {
+{
         case LLModel::LOD_IMPOSTOR: str = "LOD0 "; break;
         case LLModel::LOD_LOW:      str = "LOD1 "; break;
         case LLModel::LOD_MEDIUM:   str = "LOD2 "; break;
         case LLModel::LOD_PHYSICS:  str = "PHYS "; break;
         case LLModel::LOD_HIGH:     str = "LOD3 ";   break;
         default: break;
-        }
-        
+}
+
         LLStringUtil::format_map_t args_msg;
         LLSD::map_const_iterator iter = args.beginMap();
         LLSD::map_const_iterator end = args.endMap();
         for (; iter != end; ++iter)
-        {
+{
             args_msg[iter->first] = iter->second.asString();
-        }
+		}		
         str += sInstance->getString(message, args_msg);
         sInstance->addStringToLogTab(str, flash);
-    }
-}
+	}
+	}
 
 // static
 void LLFloaterModelPreview::addStringToLog(const std::string& str, bool flash)
-{
+	{
     if (sInstance)
-    {
+		{
         sInstance->addStringToLogTab(str, flash);
-    }
-}
+				}
+			}
 
 // static
 void LLFloaterModelPreview::addStringToLog(const std::ostringstream& strm, bool flash)
-{
+			{
     if (sInstance)
-    {
+            {
         sInstance->addStringToLogTab(strm.str(), flash);
-    }
-}
+            }
+		}
 
 void LLFloaterModelPreview::clearAvatarTab()
 {
@@ -1343,9 +1343,9 @@ void LLFloaterModelPreview::clearAvatarTab()
     joints_pos->deleteAllItems();    mSelectedJointName.clear();
 
     for (U32 i = 0; i < LLModel::NUM_LODS; ++i)
-    {
+{
         mJointOverrides[i].clear();
-    }
+	}
 
     LLTextBox *joint_total_descr = panel->getChild<LLTextBox>("conflicts_description");
     joint_total_descr->setTextArg("[CONFLICTS]", llformat("%d", 0));
@@ -1354,34 +1354,34 @@ void LLFloaterModelPreview::clearAvatarTab()
 
     LLTextBox *joint_pos_descr = panel->getChild<LLTextBox>("pos_overrides_descr");
     joint_pos_descr->setTextArg("[JOINT]", std::string("mPelvis")); // Might be better to hide it
-}
+			}
 
 void LLFloaterModelPreview::updateAvatarTab(bool highlight_overrides)
-{
+			{
     S32 display_lod = mModelPreview->mPreviewLOD;
     if (mModelPreview->mModel[display_lod].empty())
-    {
+				{
         mSelectedJointName.clear();
         return;
-    }
+					}
 
     // Joints will be listed as long as they are listed in mAlternateBindMatrix
     // even if they are for some reason identical to defaults.
     // Todo: Are overrides always identical for all lods? They normally are, but there might be situations where they aren't.
     if (mJointOverrides[display_lod].empty())
-    {
+					{
         // populate map
         for (LLModelLoader::scene::iterator iter = mModelPreview->mScene[display_lod].begin(); iter != mModelPreview->mScene[display_lod].end(); ++iter)
-        {
+					{
             for (LLModelLoader::model_instance_list::iterator model_iter = iter->second.begin(); model_iter != iter->second.end(); ++model_iter)
-            {
+					{
                 LLModelInstance& instance = *model_iter;
                 LLModel* model = instance.mModel;
                 const LLMeshSkinInfo *skin = &model->mSkinInfo;
                 U32 joint_count = LLSkinningUtil::getMeshJointCount(skin);
                 U32 bind_count = highlight_overrides ? skin->mAlternateBindMatrix.size() : 0; // simply do not include overrides if data is not needed
                 if (bind_count > 0 && bind_count != joint_count)
-                {
+						{
                     std::ostringstream out;
                     out << "Invalid joint overrides for model " << model->getName();
                     out << ". Amount of joints " << joint_count;
@@ -1390,68 +1390,68 @@ void LLFloaterModelPreview::updateAvatarTab(bool highlight_overrides)
                     addStringToLog(out.str(), true);
                     // Disable overrides for this model
                     bind_count = 0;
-                }
+						}
                 if (bind_count > 0)
-                {
+						{
                     for (U32 j = 0; j < joint_count; ++j)
-                    {
+							{
                         const LLVector3& joint_pos = skin->mAlternateBindMatrix[j].getTranslation();
                         LLJointOverrideData &data = mJointOverrides[display_lod][skin->mJointNames[j]];
 
                         LLJoint* pJoint = LLModelPreview::lookupJointByName(skin->mJointNames[j], mModelPreview);
                         if (pJoint)
-                        {
+							{
                             // see how voavatar uses aboveJointPosThreshold
                             if (pJoint->aboveJointPosThreshold(joint_pos))
-                            {
+				{
                                 // valid override
                                 if (data.mPosOverrides.size() > 0
                                     && (data.mPosOverrides.begin()->second - joint_pos).lengthSquared() > (LL_JOINT_TRESHOLD_POS_OFFSET * LL_JOINT_TRESHOLD_POS_OFFSET))
-                                {
+					{
                                     // File contains multiple meshes with conflicting joint offsets
                                     // preview may be incorrect, upload result might wary (depends onto
                                     // mesh_id that hasn't been generated yet).
                                     data.mHasConflicts = true;
-                                }
+							}
                                 data.mPosOverrides[model->getName()] = joint_pos;
-                            }
-                            else
-                            {
+						}
+						else
+						{
                                 // default value, it won't be accounted for by avatar
                                 data.mModelsNoOverrides.insert(model->getName());
-                            }
-                        }
-                    }
-                }
-                else
-                {
+					}
+					}
+				}
+			}
+			else
+			{
                     for (U32 j = 0; j < joint_count; ++j)
-                    {
+				{				
                         LLJointOverrideData &data = mJointOverrides[display_lod][skin->mJointNames[j]];
                         data.mModelsNoOverrides.insert(model->getName());
                     }
                 }
-            }
-        }
-    }
+			}
+		}
+	}
 
     LLPanel *panel = mTabContainer->getPanelByName("rigging_panel");
     LLScrollListCtrl *joints_list = panel->getChild<LLScrollListCtrl>("joints_list");
 
     if (joints_list->isEmpty())
-    {
+	{
         // Populate table
 
-        std::map<std::string, std::string> joint_alias_map;
+    std::map<std::string, std::string> joint_alias_map;
         mModelPreview->getJointAliases(joint_alias_map);
-
+    
         S32 conflicts = 0;
         joint_override_data_map_t::iterator joint_iter = mJointOverrides[display_lod].begin();
         joint_override_data_map_t::iterator joint_end = mJointOverrides[display_lod].end();
         while (joint_iter != joint_end)
-        {
+	{
             const std::string& listName = joint_iter->first;
-
+        
             LLScrollListItem::Params item_params;
             item_params.value(listName);
 
@@ -1459,38 +1459,38 @@ void LLFloaterModelPreview::updateAvatarTab(bool highlight_overrides)
             cell_params.font = LLFontGL::getFontSansSerif();
             cell_params.value = listName;
             if (joint_alias_map.find(listName) == joint_alias_map.end())
-            {
+	{
                 // Missing names
                 cell_params.color = LLColor4::red;
-            }
+	}
             if (joint_iter->second.mHasConflicts)
-            {
+	{
                 // Conflicts
                 cell_params.color = LLColor4::orange;
                 conflicts++;
-            }
+	}
             if (highlight_overrides && joint_iter->second.mPosOverrides.size() > 0)
-            {
+	{
                 cell_params.font.style = "BOLD";
-            }
+	}
 
             item_params.columns.add(cell_params);
 
             joints_list->addRow(item_params, ADD_BOTTOM);
             joint_iter++;
-        }
+	}
         joints_list->selectFirstItem();
         LLScrollListItem *selected = joints_list->getFirstSelected();
         if (selected)
-        {
+{
             mSelectedJointName = selected->getValue().asString();
-        }
+	}
 
         LLTextBox *joint_conf_descr = panel->getChild<LLTextBox>("conflicts_description");
         joint_conf_descr->setTextArg("[CONFLICTS]", llformat("%d", conflicts));
         joint_conf_descr->setTextArg("[JOINTS_COUNT]", llformat("%d", mJointOverrides[display_lod].size()));
-    }
-}
+		}
+	}
 
 //-----------------------------------------------------------------------------
 // addStringToLogTab()
@@ -1498,52 +1498,52 @@ void LLFloaterModelPreview::updateAvatarTab(bool highlight_overrides)
 void LLFloaterModelPreview::addStringToLogTab(const std::string& str, bool flash)
 {
     if (str.empty())
-    {
-        return;
-    }
+		{
+		return;
+	}
 
     LLWString text = utf8str_to_wstring(str);
     S32 add_text_len = text.length() + 1; // newline
     S32 editor_max_len = mUploadLogText->getMaxTextLength();
     if (add_text_len > editor_max_len)
-    {
-        return;
-    }
+		{
+		return;
+	}
 
     // Make sure we have space for new string
     S32 editor_text_len = mUploadLogText->getLength();
     if (editor_max_len < (editor_text_len + add_text_len)
         && mUploadLogText->getLineCount() <= 0)
-    {
+	{
         mUploadLogText->getTextBoundingRect();// forces a reflow() to fix line count
-    }
+			}
     while (editor_max_len < (editor_text_len + add_text_len))
-    {
+		{
         S32 shift = mUploadLogText->removeFirstLine();
         if (shift > 0)
-        {
+	{
             // removed a line
             editor_text_len -= shift;
-        }
-        else
-        {
+}
+	else
+	{
             //nothing to remove?
             LL_WARNS() << "Failed to clear log lines" << LL_ENDL;
-            break;
-        }
-    }
+					break;
+				}
+			}
 
     mUploadLogText->appendText(str, true);
 
     if (flash)
-    {
+	{
         LLPanel* panel = mTabContainer->getPanelByName("logs_panel");
         if (mTabContainer->getCurrentPanel() != panel)
-        {
+		{
             mTabContainer->setTabPanelFlashing(panel, true);
-        }
-    }
-}
+		}
+	}
+	}
 
 void LLFloaterModelPreview::setDetails(F32 x, F32 y, F32 z, F32 streaming_cost, F32 physics_cost)
 {
@@ -1551,15 +1551,15 @@ void LLFloaterModelPreview::setDetails(F32 x, F32 y, F32 z, F32 streaming_cost,
 	childSetTextArg("import_dimensions", "[X]", llformat("%.3f", x));
 	childSetTextArg("import_dimensions", "[Y]", llformat("%.3f", y));
 	childSetTextArg("import_dimensions", "[Z]", llformat("%.3f", z));
-}
+		}
 
 void LLFloaterModelPreview::setPreviewLOD(S32 lod)
-{
+		{
 	if (mModelPreview)
 	{
 		mModelPreview->setPreviewLOD(lod);
-	}
-}
+								}
+							}
 
 void LLFloaterModelPreview::onBrowseLOD(S32 lod)
 {
@@ -1648,13 +1648,13 @@ void LLFloaterModelPreview::setCtrlLoadFromFile(S32 lod)
         }
     }
     else
-    {
+{
         LLComboBox* lod_combo = findChild<LLComboBox>("lod_source_" + lod_name[lod]);
         if (lod_combo)
-        {
+	{
             lod_combo->setCurrentByIndex(0);
-        }
-    }
+	}
+}
 }
 
 void LLFloaterModelPreview::setStatusMessage(const std::string& msg)
diff --git a/indra/newview/llfloaterreporter.cpp b/indra/newview/llfloaterreporter.cpp
index 7bfba2a6d7..a30c73768d 100644
--- a/indra/newview/llfloaterreporter.cpp
+++ b/indra/newview/llfloaterreporter.cpp
@@ -746,9 +746,6 @@ LLSD LLFloaterReporter::gatherReport()
 	const char* platform = "Mac";
 #elif LL_LINUX
 	const char* platform = "Lnx";
-#elif LL_SOLARIS
-	const char* platform = "Sol";
-	const char* short_platform = "O:S";
 #else
 	const char* platform = "???";
 #endif
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index 2cb27d85bc..efa4a7fd66 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -2253,52 +2253,91 @@ void renderBoundingBox(LLDrawable* drawable, BOOL set_color = TRUE)
 	}
 }
 
-void renderNormals(LLDrawable* drawablep)
+void renderNormals(LLDrawable *drawablep)
 {
-	LLVertexBuffer::unbind();
+    if (!drawablep->isVisible())
+        return;
 
-	LLVOVolume* vol = drawablep->getVOVolume();
-	if (vol)
-	{
-		LLVolume* volume = vol->getVolume();
-		gGL.pushMatrix();
-		gGL.multMatrix((F32*) vol->getRelativeXform().mMatrix);
-		
-		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+    LLVertexBuffer::unbind();
 
-		LLVector4a scale(gSavedSettings.getF32("RenderDebugNormalScale"));
+    LLVOVolume *vol = drawablep->getVOVolume();
 
-		for (S32 i = 0; i < volume->getNumVolumeFaces(); ++i)
-		{
-			const LLVolumeFace& face = volume->getVolumeFace(i);
+    if (vol)
+    {
+        LLVolume *volume = vol->getVolume();
 
-			for (S32 j = 0; j < face.mNumVertices; ++j)
-			{
-				gGL.begin(LLRender::LINES);
-				LLVector4a n,p;
-				
-				n.setMul(face.mNormals[j], scale);
-				p.setAdd(face.mPositions[j], n);
-				
-				gGL.diffuseColor4f(1,1,1,1);
-				gGL.vertex3fv(face.mPositions[j].getF32ptr());
-				gGL.vertex3fv(p.getF32ptr());
-				
-				if (face.mTangents)
-				{
-					n.setMul(face.mTangents[j], scale);
-					p.setAdd(face.mPositions[j], n);
-				
-					gGL.diffuseColor4f(0,1,1,1);
-					gGL.vertex3fv(face.mPositions[j].getF32ptr());
-					gGL.vertex3fv(p.getF32ptr());
-				}	
-				gGL.end();
-			}
-		}
+        // Drawable's normals & tangents are stored in model space, i.e. before any scaling is applied.
+        //
+        // SL-13490, using pos + normal to compute the 2nd vertex of a normal line segment doesn't
+        // work when there's a non-uniform scale in the mix. Normals require MVP-inverse-transpose
+        // transform. We get that effect here by pre-applying the inverse scale (twice, because
+        // one forward scale will be re-applied via the MVP in the vertex shader)
 
-		gGL.popMatrix();
-	}
+        LLVector3  scale_v3 = vol->getScale();
+        float      scale_len = scale_v3.length();
+        LLVector4a obj_scale(scale_v3.mV[VX], scale_v3.mV[VY], scale_v3.mV[VZ]);
+        obj_scale.normalize3();
+
+        // Normals &tangent line segments get scaled along with the object. Divide by scale length
+        // to keep the as-viewed lengths (relatively) constant with the debug setting length
+        float draw_length = gSavedSettings.getF32("RenderDebugNormalScale") / scale_len;
+
+        // Create inverse-scale vector for normals
+        LLVector4a inv_scale(1.0 / scale_v3.mV[VX], 1.0 / scale_v3.mV[VY], 1.0 / scale_v3.mV[VZ]);
+        inv_scale.mul(inv_scale);  // Squared, to apply inverse scale twice
+        inv_scale.normalize3fast();
+
+        gGL.pushMatrix();
+        gGL.multMatrix((F32 *) vol->getRelativeXform().mMatrix);
+
+        gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
+        for (S32 i = 0; i < volume->getNumVolumeFaces(); ++i)
+        {
+            const LLVolumeFace &face = volume->getVolumeFace(i);
+
+            gGL.flush();
+            gGL.diffuseColor4f(1, 1, 0, 1);
+            gGL.begin(LLRender::LINES);
+            for (S32 j = 0; j < face.mNumVertices; ++j)
+            {
+                LLVector4a n, p;
+
+                n.setMul(face.mNormals[j], 1.0);
+                n.mul(inv_scale);  // Pre-scale normal, so it's left with an inverse-transpose xform after MVP
+                n.normalize3fast();
+                n.mul(draw_length);
+                p.setAdd(face.mPositions[j], n);
+
+                gGL.vertex3fv(face.mPositions[j].getF32ptr());
+                gGL.vertex3fv(p.getF32ptr());
+            }
+            gGL.end();
+
+            // Tangents are simple vectors and do not require reorientation via pre-scaling
+            if (face.mTangents)
+            {
+                gGL.flush();
+                gGL.diffuseColor4f(0, 1, 1, 1);
+                gGL.begin(LLRender::LINES);
+                for (S32 j = 0; j < face.mNumVertices; ++j)
+                {
+                    LLVector4a t, p;
+
+                    t.setMul(face.mTangents[j], 1.0f);
+                    t.normalize3fast();
+                    t.mul(draw_length);
+                    p.setAdd(face.mPositions[j], t);
+
+                    gGL.vertex3fv(face.mPositions[j].getF32ptr());
+                    gGL.vertex3fv(p.getF32ptr());
+                }
+                gGL.end();
+            }
+        }
+
+        gGL.popMatrix();
+    }
 }
 
 S32 get_physics_detail(const LLVolumeParams& volume_params, const LLVector3& scale)
diff --git a/indra/newview/llstartup.cpp b/indra/newview/llstartup.cpp
index af0421b4c5..3fb79e4739 100644
--- a/indra/newview/llstartup.cpp
+++ b/indra/newview/llstartup.cpp
@@ -176,6 +176,7 @@
 #include "pipeline.h"
 #include "llappviewer.h"
 #include "llfasttimerview.h"
+#include "lltelemetry.h"
 #include "llfloatermap.h"
 #include "llweb.h"
 #include "llvoiceclient.h"
@@ -527,6 +528,8 @@ bool idle_startup()
 			}
 
 			#if LL_WINDOWS
+                LLPROFILE_STARTUP();
+
 				// On the windows dev builds, unpackaged, the message.xml file will 
 				// be located in indra/build-vc**/newview/<config>/app_settings.
 				std::string message_path = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS,"message.xml");
diff --git a/indra/newview/lltelemetry.cpp b/indra/newview/lltelemetry.cpp
new file mode 100644
index 0000000000..0c63e2fede
--- /dev/null
+++ b/indra/newview/lltelemetry.cpp
@@ -0,0 +1,145 @@
+ /**
+ * @file lltelemetry.cpp
+ * @brief Wrapper for Rad Game Tools Telemetry
+ *
+ * $LicenseInfo:firstyear=2020&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2020, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "lltelemetry.h"
+
+#if LLPROFILE_USE_RAD_TELEMETRY_PROFILER
+    #if LL_WINDOWS
+        #include "llwin32headers.h"
+
+        // build-vc120-64\packages\lib\release
+        // build-vc150-64\packages\lib\release
+        #ifdef _MSC_VER
+            #pragma comment(lib,"rad_tm_win64.lib")
+        #else
+            #pragma message "NOTE: Rad GameTools Telemetry requested but non-MSVC compiler not yet supported on Windows"
+        #endif
+    #endif // LL_WINDOWS
+
+    #if LL_DARWIN
+        #pragma message "NOTE: Rad Game Tools Telemetry requested but not yet supported on Darwin"
+    #endif
+
+    #if LL_LINUX
+        #pragma message "NOTE: Rad Game Tools Telemetry requested but not yet supported on Linux"
+    #endif
+
+//
+// local consts
+//
+static const tm_int32 TELEMETRY_BUFFER_SIZE  = 8 * 1024 * 1024;
+
+//
+// local globals
+//
+static char *gTelemetryBufferPtr = NULL; // Telemetry
+
+static const char *tm_status[ TMERR_INIT_NETWORKING_FAILED + 1 ] =
+{
+      "Telemetry pass: connected"                       // TM_OK
+    , "Telemetry FAIL: disabled via #define NTELEMETRY" // TMERR_DISABLED
+    , "Telemetry FAIL: invalid paramater"               // TMERR_INVALID_PARAM
+    , "Telemetry FAIL: DLL not found"                   // TMERR_NULL_API
+    , "Telemetry FAIL: out of resources"                // TMERR_OUT_OF_RESOURCES
+    , "Telemetry FAIL: tmInitialize() not called"       // TMERR_UNINITIALIZED
+    , "Telemetry FAIL: bad hostname"                    // TMERR_BAD_HOSTNAME
+    , "Telemetry FAIL: couldn't connect to server"      // TMERR_COULD_NOT_CONNECT
+    , "Telemetry FAIL: unknown network error"           // TMERR_UNKNOWN_NETWORK
+    , "Telemetry FAIL: tmShutdown() already called"     // TMERR_ALREADY_SHUTDOWN
+    , "Telemetry FAIL: memory buffer too small"         // TMERR_ARENA_TOO_SMALL
+    , "Telemetry FAIL: server handshake error"          // TMERR_BAD_HANDSHAKE
+    , "Telemetry FAIL: unaligned parameters"            // TMERR_UNALIGNED
+    , "Telemetry FAIL: network not initialized"         // TMERR_NETWORK_NOT_INITIALIZED -- WSAStartup not called before tmOpen()
+    , "Telemetry FAIL: bad version"                     // TMERR_BAD_VERSION
+    , "Telemetry FAIL: timer too large"                 // TMERR_BAD_TIMER
+    , "Telemetry FAIL: tmOpen() already called"         // TMERR_ALREADY_OPENED
+    , "Telemetry FAIL: tmInitialize() already called"   // TMERR_ALREADY_INITIALIZED
+    , "Telemetry FAIL: could't open file"               // TMERR_FILE_OPEN_FAILED
+    , "Telemetry FAIL: tmOpen() failed networking"      // TMERR_INIT_NETWORKING_FAILED
+};
+
+//
+// exported functionality
+//
+
+void telemetry_shutdown()
+{
+    #if LL_WINDOWS
+        if (gTelemetryBufferPtr)
+        {
+            tmClose(0);
+            tmShutdown();
+
+            delete[] gTelemetryBufferPtr;
+            gTelemetryBufferPtr = NULL;
+        }
+    #endif
+}
+
+void telemetry_startup()
+{
+    #if LL_WINDOWS
+        tmLoadLibrary(TM_RELEASE); // Loads .dll
+
+        gTelemetryBufferPtr = new char[ TELEMETRY_BUFFER_SIZE ];
+        tmInitialize(TELEMETRY_BUFFER_SIZE, gTelemetryBufferPtr);
+
+        tm_error telemetry_status = tmOpen(
+            0,                     // unused
+            "SecondLife",          // app name
+            __DATE__ " " __TIME__, // build identifier
+            "localhost",           // server name (or filename)
+            TMCT_TCP,              // connection type (or TMCT_FILE)
+            4719,                  // port
+            TMOF_INIT_NETWORKING,  // open flags
+            250 );                 // timeout ms
+
+        if (telemetry_status == TMERR_UNKNOWN)
+        {
+            LL_ERRS() << "Telemetry FAIL: unknown error" << LL_ENDL;
+        }
+        else if (telemetry_status && (telemetry_status <= TMERR_INIT_NETWORKING_FAILED))
+        {
+            LL_INFOS() << tm_status[ telemetry_status ] << LL_ENDL;
+            free(gTelemetryBufferPtr);
+            gTelemetryBufferPtr = NULL;
+        }
+    #endif // LL_WINDOWS
+}
+
+// Called after we render a frame
+void telemetry_update()
+{
+    #if LL_WINDOWS
+        if (gTelemetryBufferPtr)
+        {
+            tmTick(0);
+        }
+    #endif
+}
+#endif // LLPROFILE_USE_RAD_TELEMETRY_PROFILER
diff --git a/indra/newview/lltelemetry.h b/indra/newview/lltelemetry.h
new file mode 100644
index 0000000000..a73e5fcfa2
--- /dev/null
+++ b/indra/newview/lltelemetry.h
@@ -0,0 +1,81 @@
+/**
+ * @file lltelemetry.h
+ * @brief Wrapper for Rad Game Tools Telemetry
+ *
+ * $LicenseInfo:firstyear=2020&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2020, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+/*
+To use:
+
+1. Uncomment #define LLPROFILE_USE_RAD_TELEMETRY_PROFILER below
+
+2. Include this header file
+    #include "lltelemetry.h"
+
+3. Add zones to the functions you wish to profile
+    void onFoo()
+    {
+        LLPROFILE_ZONE("Foo");
+    }
+*/
+//#define LLPROFILE_USE_RAD_TELEMETRY_PROFILER 1
+
+// Default NO local telemetry profiling
+#ifndef LLPROFILE_USE_RAD_TELEMETRY_PROFILER
+    #define LLPROFILE_USE_RAD_TELEMETRY_PROFILER 0
+    #define LLPROFILE_SHUTDOWN( ...) {}
+    #define LLPROFILE_STARTUP(  ...) {}
+    #define LLPROFILE_UPDATE(   ...) {}
+
+    #define LLPROFILE_AUTO_CPU_MARKER_COLOR(r, g, b)
+    #define LLPROFILE_ENTER(name)
+    #define LLPROFILE_ENTER_FORMAT(format, ...)
+    #define LLPROFILE_FUNCTION
+    #define LLPROFILE_LEAVE()
+    #define LLPROFILE_THREAD_NAME(name)
+    #define LLPROFILE_ZONE(name)
+    #define LLPROFILE_ZONE_FORMAT(format, ...)
+#else
+    #include <rad_tm.h>
+
+    #define LLPROFILE_SHUTDOWN                       telemetry_shutdown
+    #define LLPROFILE_STARTUP                        telemetry_startup
+    #define LLPROFILE_UPDATE                         telemetry_update
+
+    #define LLPROFILE_AUTO_CPU_MARKER_COLOR(r, g, b) tmZoneColor(r, g, b)
+    #define LLPROFILE_ENTER(name)                    tmEnter(0, 0, name)
+    #define LLPROFILE_ENTER_FORMAT(format, ...)      tmEnter(0, 0, format, __VA_ARGS__)
+    #define LLPROFILE_FUNCTION                       tmFunction(0, 0)
+    #define LLPROFILE_LEAVE()                        tmLeave(0)
+    #define LLPROFILE_THREAD_NAME(name)              tmThreadName(0, 0, name)
+    #define LLPROFILE_ZONE(name)                     tmZone(0, 0, name)
+    #define LLPROFILE_ZONE_FORMAT(format, ...)       tmZone(0, 0, format, __VA_ARGS__)
+#endif // LLPROFILE_USE_RAD_TELEMETRY_PROFILER
+
+//
+// exported functionality
+//
+
+extern void telemetry_startup();
+extern void telemetry_shutdown();
+extern void telemetry_update(); // called after every frame update
diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index d314b1477a..6d939fbe21 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -753,10 +753,7 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 				glViewport(0,0,512,512);
 				LLVOAvatar::updateFreezeCounter() ;
 
-				if(!LLPipeline::sMemAllocationThrottled)
-				{		
-					LLVOAvatar::updateImpostors();
-				}
+				LLVOAvatar::updateImpostors();
 
 				set_current_projection(proj);
 				set_current_modelview(mod);
diff --git a/indra/newview/llviewerjoint.cpp b/indra/newview/llviewerjoint.cpp
index a448a95904..9653e80b53 100644
--- a/indra/newview/llviewerjoint.cpp
+++ b/indra/newview/llviewerjoint.cpp
@@ -143,8 +143,10 @@ U32 LLViewerJoint::render( F32 pixelArea, BOOL first_pass, BOOL is_dummy )
 	//----------------------------------------------------------------
 	for (LLJoint* j : mChildren)
 	{
-		LLAvatarJoint* joint = dynamic_cast<LLAvatarJoint*>(j);
-		F32 jointLOD = joint ? joint->getLOD() : 0;
+		// LLViewerJoint is derived from LLAvatarJoint,
+		// all children of LLAvatarJoint are assumed to be LLAvatarJoint
+		LLAvatarJoint* joint = static_cast<LLAvatarJoint*>(j);
+		F32 jointLOD = joint->getLOD();
 		if (pixelArea >= jointLOD || sDisableLOD)
 		{
 			triangle_count += joint->render( pixelArea, TRUE, is_dummy );
diff --git a/indra/newview/llviewerjointmesh.cpp b/indra/newview/llviewerjointmesh.cpp
index fdfd22c117..63ad708e59 100644
--- a/indra/newview/llviewerjointmesh.cpp
+++ b/indra/newview/llviewerjointmesh.cpp
@@ -56,7 +56,7 @@
 #include "m4math.h"
 #include "llmatrix4a.h"
 
-#if !LL_DARWIN && !LL_LINUX && !LL_SOLARIS
+#if !LL_DARWIN && !LL_LINUX
 extern PFNGLWEIGHTPOINTERARBPROC glWeightPointerARB;
 extern PFNGLWEIGHTFVARBPROC glWeightfvARB;
 extern PFNGLVERTEXBLENDARBPROC glVertexBlendARB;
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index 395dd0495f..b88baf6aa7 100644
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -4880,78 +4880,22 @@ void LLViewerObject::refreshBakeTexture()
 	}
 }
 
-void LLViewerObject::updateDiffuseMatParams(const U8 te, LLMaterial* mat, LLViewerTexture *imagep, bool baked_texture)
-{
-    // Objects getting non-alpha texture and alpha mask can result in graphical bugs, like white or red alphas.
-    // To resolve the issue this function provides image format to material and based on format material's
-    // getDiffuseAlphaModeRender() function will decide what value to provide to render
-    //
-    // Unfortunately LLMaterial has no access to diffuse image, so we have to set this data in LLViewerObject
-    // regardles of object being used/seen or frequency of image-updates.
-    mat->setDiffuseBaked(baked_texture);
-
-    if (!baked_texture)
-    {
-        if (imagep->isMissingAsset())
-        {
-            mat->setDiffuseFormatPrimary(0);
-        }
-        else if (0 == imagep->getPrimaryFormat())
-        {
-            // We don't have information about this texture, wait for it
-            mWaitingTextureInfo.insert(uuid_material_mmap_t::value_type(imagep->getID(), material_info(LLRender::DIFFUSE_MAP, te)));
-            // Temporary assume RGBA image
-            mat->setDiffuseFormatPrimary(GL_RGBA);
-        }
-        else
-        {
-            mat->setDiffuseFormatPrimary(imagep->getPrimaryFormat());
-        }
-    }
-}
-
-S32 LLViewerObject::setDiffuseImageAndParams(const U8 te, LLViewerTexture *imagep)
-{
-    LLUUID new_id = imagep->getID();
-    S32 retval = LLPrimitive::setTETexture(te, new_id);
-
-    LLTextureEntry* tep = getTE(te);
-    LLUUID old_image_id = tep->getID();
-
-    LLViewerTexture* baked_texture = getBakedTextureForMagicId(new_id);
-    mTEImages[te] = baked_texture ? baked_texture : imagep;
-    updateAvatarMeshVisibility(new_id, old_image_id);
-
-    LLMaterial* mat = tep->getMaterialParams();
-    if (mat)
-    {
-        // Don't update format from texture (and don't shedule one) if material has no alpha mode set,
-        // just assume RGBA format, format will get updated with setTEMaterialParams call if mode changes
-        if (mat->getDiffuseAlphaMode() != LLMaterial::DIFFUSE_ALPHA_MODE_NONE)
-        {
-            bool baked = baked_texture != NULL;
-            updateDiffuseMatParams(te, mat, imagep, baked);
-        }
-        else
-        {
-            mat->setDiffuseFormatPrimary(GL_RGBA);
-        }
-    }
-
-    setChanged(TEXTURE);
-    if (mDrawable.notNull())
-    {
-        gPipeline.markTextured(mDrawable);
-    }
-
-    return retval;
-}
-
 void LLViewerObject::setTEImage(const U8 te, LLViewerTexture *imagep)
 {
 	if (mTEImages[te] != imagep)
 	{
-        setDiffuseImageAndParams(te, imagep);
+		LLUUID old_image_id = getTE(te) ? getTE(te)->getID() : LLUUID::null;
+		
+		LLPrimitive::setTETexture(te, imagep->getID());
+
+		LLViewerTexture* baked_texture = getBakedTextureForMagicId(imagep->getID());
+		mTEImages[te] = baked_texture ? baked_texture : imagep;
+		updateAvatarMeshVisibility(imagep->getID(), old_image_id);
+		setChanged(TEXTURE);
+		if (mDrawable.notNull())
+		{
+			gPipeline.markTextured(mDrawable);
+		}
 	}
 }
 
@@ -4963,7 +4907,15 @@ S32 LLViewerObject::setTETextureCore(const U8 te, LLViewerTexture *image)
 	if (uuid != getTE(te)->getID() ||
 		uuid == LLUUID::null)
 	{
-		retval = setDiffuseImageAndParams(te, image);
+		retval = LLPrimitive::setTETexture(te, uuid);
+		LLViewerTexture* baked_texture = getBakedTextureForMagicId(uuid);
+		mTEImages[te] = baked_texture ? baked_texture : image;
+		updateAvatarMeshVisibility(uuid,old_image_id);
+		setChanged(TEXTURE);
+		if (mDrawable.notNull())
+		{
+			gPipeline.markTextured(mDrawable);
+		}
 	}
 	return retval;
 }
@@ -5258,29 +5210,6 @@ S32 LLViewerObject::setTEMaterialParams(const U8 te, const LLMaterialPtr pMateri
 		return 0;
 	}
 
-    if (pMaterialParams.notNull()
-        && pMaterialParams->getDiffuseAlphaMode() != LLMaterial::DIFFUSE_ALPHA_MODE_NONE)
-    {
-        // Don't update if no alpha is set. If alpha changes, this function will run again,
-        // no point in sheduling additional texture callbacks (in updateDiffuseMatParams)
-        LLTextureEntry* tex_entry = getTE(te);
-        bool is_baked = tex_entry && LLAvatarAppearanceDefines::LLAvatarAppearanceDictionary::isBakedImageId(tex_entry->getID());
-
-        LLViewerTexture *img_diffuse = getTEImage(te);
-        llassert(NULL != img_diffuse);
-
-        if (NULL != img_diffuse)
-        {
-            // Will modify alpha mask provided to renderer to fit image
-            updateDiffuseMatParams(te, pMaterialParams.get(), img_diffuse, is_baked);
-        }
-        else
-        {
-            LLMaterial *mat = pMaterialParams.get(); // to avoid const
-            mat->setDiffuseFormatPrimary(0);
-        }
-    }
-
 	retval = LLPrimitive::setTEMaterialParams(te, pMaterialParams);
 	LL_DEBUGS("Material") << "Changing material params for te " << (S32)te
 							<< ", object " << mID
@@ -5293,84 +5222,6 @@ S32 LLViewerObject::setTEMaterialParams(const U8 te, const LLMaterialPtr pMateri
 	return retval;
 }
 
-bool LLViewerObject::notifyAboutCreatingTexture(LLViewerTexture *texture)
-{
-    // Confirmation about texture creation, check wait-list
-    // and make changes, or return false
-
-    std::pair<uuid_material_mmap_t::iterator, uuid_material_mmap_t::iterator> range = mWaitingTextureInfo.equal_range(texture->getID());
-
-    bool refresh_materials = false;
-
-    // RGB textures without alpha channels won't work right with alpha,
-    // we provide format to material for material to decide when to drop alpha
-    for (uuid_material_mmap_t::iterator range_it = range.first; range_it != range.second; ++range_it)
-    {
-        LLMaterialPtr cur_material = getTEMaterialParams(range_it->second.te);
-        if (cur_material.notNull()
-            && LLRender::DIFFUSE_MAP == range_it->second.map)
-        {
-            U32 format = texture->getPrimaryFormat();
-            if (format != cur_material->getDiffuseFormatPrimary())
-            {
-                cur_material->setDiffuseFormatPrimary(format);
-                refresh_materials = true;
-            }
-        }
-    } //for
-
-    if (refresh_materials)
-    {
-        LLViewerObject::refreshMaterials();
-    }
-
-    //clear wait-list
-    mWaitingTextureInfo.erase(range.first, range.second);
-
-    return refresh_materials;
-}
-
-bool LLViewerObject::notifyAboutMissingAsset(LLViewerTexture *texture)
-{
-    // When waiting information about texture it turned out to be missing.
-    // Confirm the state, update values accordingly
-    std::pair<uuid_material_mmap_t::iterator, uuid_material_mmap_t::iterator> range = mWaitingTextureInfo.equal_range(texture->getID());
-    if (range.first == range.second) return false;
-
-    bool refresh_materials = false;
-
-    for (uuid_material_mmap_t::iterator range_it = range.first; range_it != range.second; ++range_it)
-    {
-        LLMaterialPtr cur_material = getTEMaterialParams(range_it->second.te);
-        if (cur_material.isNull())
-            continue;
-
-        if (range_it->second.map == LLRender::DIFFUSE_MAP)
-        {
-            LLMaterialPtr cur_material = getTEMaterialParams(range_it->second.te);
-            if (cur_material.notNull()
-                && LLRender::DIFFUSE_MAP == range_it->second.map)
-            {
-                if (0 != cur_material->getDiffuseFormatPrimary())
-                {
-                    cur_material->setDiffuseFormatPrimary(0);
-                    refresh_materials = true;
-                }
-            }
-        }
-    } //for
-
-    if (refresh_materials)
-    {
-        LLViewerObject::refreshMaterials();
-    }
-
-    //clear wait-list
-    mWaitingTextureInfo.erase(range.first, range.second);
-
-    return refresh_materials;
-}
-
 void LLViewerObject::refreshMaterials()
 {
 	setChanged(TEXTURE);
diff --git a/indra/newview/llviewerobject.h b/indra/newview/llviewerobject.h
index 9444c4f788..250c4ac328 100644
--- a/indra/newview/llviewerobject.h
+++ b/indra/newview/llviewerobject.h
@@ -768,12 +768,7 @@ protected:
 	void unpackParticleSource(LLDataPacker &dp, const LLUUID& owner_id, bool legacy);
 	void deleteParticleSource();
 	void setParticleSource(const LLPartSysData& particle_parameters, const LLUUID& owner_id);
-
-    // Helper function to modify alpha mask provided to render according to image (ex: RGB image will drop alpha mask)
-    void updateDiffuseMatParams(const U8 te, LLMaterial* mat, LLViewerTexture *imagep, bool baked_texture);
-    // Shared part of code from setTEImage and setTETextureCore
-    S32 setDiffuseImageAndParams(const U8 te, LLViewerTexture *imagep);
-
+	
 private:
 	void setNameValueList(const std::string& list);		// clears nv pairs and then individually adds \n separated NV pairs from \0 terminated string
 	void deleteTEImages(); // correctly deletes list of images
@@ -906,27 +901,10 @@ public:
 
     LLJointRiggingInfoTab mJointRiggingInfoTab;
 
-    bool notifyAboutCreatingTexture(LLViewerTexture *texture);
-    bool notifyAboutMissingAsset(LLViewerTexture *texture);
-
 private:
 	LLUUID mAttachmentItemID; // ItemID of the associated object is in user inventory.
 	EObjectUpdateType	mLastUpdateType;
 	BOOL	mLastUpdateCached;
-
-    struct material_info
-    {
-        LLRender::eTexIndex map;
-        U8 te;
-
-        material_info(LLRender::eTexIndex map_, U8 te_)
-            : map(map_)
-            , te(te_)
-        {}
-    };
-
-    typedef std::multimap<LLUUID, material_info> uuid_material_mmap_t;
-    uuid_material_mmap_t mWaitingTextureInfo;
 };
 
 ///////////////////
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index f5c4192d36..7fbc4d789b 100644
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -3314,13 +3314,6 @@ void LLViewerLODTexture::processTextureStats()
 	{
 		mDesiredDiscardLevel = llmin(mDesiredDiscardLevel, (S8)mDesiredSavedRawDiscardLevel);
 	}
-	else if(LLPipeline::sMemAllocationThrottled)//release memory of large textures by decrease their resolutions.
-	{
-		if(scaleDown())
-		{
-			mDesiredDiscardLevel = mCachedRawDiscardLevel;
-		}
-	}
 }
 
 bool LLViewerLODTexture::scaleDown()
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 0f96a0b06c..21985d5a8a 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -314,6 +314,99 @@ RecordToChatConsole::RecordToChatConsole():
 
 ////////////////////////////////////////////////////////////////////////////
 //
+// Print Utility
+//
+
+// Convert a normalized float (-1.0 <= x <= +1.0) to a fixed 1.4 format string:
+//
+//    s#.####
+//
+// Where:
+//    s  sign character; space if x is positiv, minus if negative
+//    #  decimal digits
+//
+// This is similar to printf("%+.4f") except positive numbers are NOT cluttered with a leading '+' sign.
+// NOTE: This does NOT null terminate the output
+void normalized_float_to_string(const float x, char *out_str)
+{
+    static const unsigned char DECIMAL_BCD2[] =
+    {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
+        0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29,
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
+        0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
+        0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
+        0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
+        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
+        0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
+        0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99
+    };
+
+    int neg = (x < 0);
+    int rem = neg
+            ? (int)(x * -10000.)
+            : (int)(x *  10000.);
+
+    int d10 = rem % 100; rem /= 100;
+    int d32 = rem % 100; rem /= 100;
+
+    out_str[6] = '0' + ((DECIMAL_BCD2[ d10 ] >> 0) & 0xF);
+    out_str[5] = '0' + ((DECIMAL_BCD2[ d10 ] >> 4) & 0xF);
+    out_str[4] = '0' + ((DECIMAL_BCD2[ d32 ] >> 0) & 0xF);
+    out_str[3] = '0' + ((DECIMAL_BCD2[ d32 ] >> 4) & 0xF);
+    out_str[2] = '.';
+    out_str[1] = '0' + (rem & 1);
+    out_str[0] = " -"[neg]; // Could always show '+' for positive but this clutters up the common case
+}
+
+// normalized float
+//    printf("%-.4f    %-.4f    %-.4f")
+// Params:
+//   float  &matrix_row[4]
+//   int    matrix_cell_index
+//   string out_buffer (size 32)
+// Note: The buffer is assumed to be pre-filled with spaces
+#define MATRIX_ROW_N32_TO_STR(matrix_row, i, out_buffer)          \
+    normalized_float_to_string(matrix_row[i+0], out_buffer +  0); \
+    normalized_float_to_string(matrix_row[i+1], out_buffer + 11); \
+    normalized_float_to_string(matrix_row[i+2], out_buffer + 22); \
+    out_buffer[31] = 0;
+
+
+// regular float
+//    sprintf(buffer, "%-8.2f  %-8.2f  %-8.2f", matrix_row[i+0], matrix_row[i+1], matrix_row[i+2]);
+// Params:
+//   float  &matrix_row[4]
+//   int    matrix_cell_index
+//   char   out_buffer[32]
+// Note: The buffer is assumed to be pre-filled with spaces
+#define MATRIX_ROW_F32_TO_STR(matrix_row, i, out_buffer) {                       \
+    static const char *format[3] = {                                             \
+        "%-8.2f"  ,  /* 0 */                                                     \
+        ">  99K  ",  /* 1 */                                                     \
+        "< -99K  "   /* 2 */                                                     \
+    };                                                                           \
+                                                                                 \
+    F32 temp_0 = matrix_row[i+0];                                                \
+    F32 temp_1 = matrix_row[i+1];                                                \
+    F32 temp_2 = matrix_row[i+2];                                                \
+                                                                                 \
+    U8 flag_0 = (((U8)(temp_0 < -99999.99)) << 1) | ((U8)(temp_0 > 99999.99));   \
+    U8 flag_1 = (((U8)(temp_1 < -99999.99)) << 1) | ((U8)(temp_1 > 99999.99));   \
+    U8 flag_2 = (((U8)(temp_2 < -99999.99)) << 1) | ((U8)(temp_2 > 99999.99));   \
+                                                                                 \
+    if (temp_0 < 0.f) out_buffer[ 0] = '-';                                      \
+    if (temp_1 < 0.f) out_buffer[11] = '-';                                      \
+    if (temp_2 < 0.f) out_buffer[22] = '-';                                      \
+                                                                                 \
+    sprintf(out_buffer+ 1,format[flag_0],fabsf(temp_0)); out_buffer[ 1+8] = ' '; \
+    sprintf(out_buffer+12,format[flag_1],fabsf(temp_1)); out_buffer[12+8] = ' '; \
+    sprintf(out_buffer+23,format[flag_2],fabsf(temp_2)); out_buffer[23+8] =  0 ; \
+}
+
+////////////////////////////////////////////////////////////////////////////
+//
 // LLDebugText
 //
 
@@ -334,7 +427,11 @@ private:
 	typedef std::vector<Line> line_list_t;
 	line_list_t mLineList;
 	LLColor4 mTextColor;
-	
+
+	LLColor4 mBackColor;
+	LLRect mBackRectCamera1;
+	LLRect mBackRectCamera2;
+
 	void addText(S32 x, S32 y, const std::string &text) 
 	{
 		mLineList.push_back(Line(text, x, y));
@@ -376,11 +473,22 @@ public:
 		mTextColor = LLColor4( 0.86f, 0.86f, 0.86f, 1.f );
 
 		// Draw stuff growing up from right lower corner of screen
-		S32 xpos = mWindow->getWorldViewWidthScaled() - 400;
+		S32 x_right = mWindow->getWorldViewWidthScaled();
+		S32 xpos = x_right - 400;
 		xpos = llmax(xpos, 0);
 		S32 ypos = 64;
 		const S32 y_inc = 20;
 
+		// Camera matrix text is hard to see again a white background
+		// Add a dark background underneath the matrices for readability (contrast)
+		mBackRectCamera1.mLeft   = xpos;
+		mBackRectCamera1.mRight  = x_right;
+		mBackRectCamera1.mTop    = -1;
+		mBackRectCamera1.mBottom = -1;
+		mBackRectCamera2 = mBackRectCamera1;
+
+		mBackColor = LLUIColorTable::instance().getColor( "MenuDefaultBgColor" );
+
 		clearText();
 		
 		if (gSavedSettings.getBOOL("DebugShowTime"))
@@ -716,48 +824,45 @@ public:
 		}
 		if (gSavedSettings.getBOOL("DebugShowRenderMatrices"))
 		{
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLProjection[12], gGLProjection[13], gGLProjection[14], gGLProjection[15]));
-			ypos += y_inc;
+			char camera_lines[8][32];
+			memset(camera_lines, ' ', sizeof(camera_lines));
 
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLProjection[8], gGLProjection[9], gGLProjection[10], gGLProjection[11]));
-			ypos += y_inc;
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLProjection[4], gGLProjection[5], gGLProjection[6], gGLProjection[7]));
-			ypos += y_inc;
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLProjection[0], gGLProjection[1], gGLProjection[2], gGLProjection[3]));
-			ypos += y_inc;
+			// Projection last column is always <0,0,-1.0001,0>
+			// Projection last row is always <0,0,-0.2>
+			mBackRectCamera1.mBottom = ypos - y_inc + 2;
+			MATRIX_ROW_N32_TO_STR(gGLProjection, 12,camera_lines[7]); addText(xpos, ypos, std::string(camera_lines[7])); ypos += y_inc;
+			MATRIX_ROW_N32_TO_STR(gGLProjection,  8,camera_lines[6]); addText(xpos, ypos, std::string(camera_lines[6])); ypos += y_inc;
+			MATRIX_ROW_N32_TO_STR(gGLProjection,  4,camera_lines[5]); addText(xpos, ypos, std::string(camera_lines[5])); ypos += y_inc; mBackRectCamera1.mTop    = ypos + 2;
+			MATRIX_ROW_N32_TO_STR(gGLProjection,  0,camera_lines[4]); addText(xpos, ypos, std::string(camera_lines[4])); ypos += y_inc; mBackRectCamera2.mBottom = ypos + 2;
 
 			addText(xpos, ypos, "Projection Matrix");
 			ypos += y_inc;
 
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLModelView[12], gGLModelView[13], gGLModelView[14], gGLModelView[15]));
-			ypos += y_inc;
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLModelView[8], gGLModelView[9], gGLModelView[10], gGLModelView[11]));
-			ypos += y_inc;
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLModelView[4], gGLModelView[5], gGLModelView[6], gGLModelView[7]));
-			ypos += y_inc;
-
-			addText(xpos, ypos, llformat("%.4f    .%4f    %.4f    %.4f", gGLModelView[0], gGLModelView[1], gGLModelView[2], gGLModelView[3]));
-			ypos += y_inc;
+			// View last column is always <0,0,0,1>
+			MATRIX_ROW_F32_TO_STR(gGLModelView, 12,camera_lines[3]); addText(xpos, ypos, std::string(camera_lines[3])); ypos += y_inc;
+			MATRIX_ROW_N32_TO_STR(gGLModelView,  8,camera_lines[2]); addText(xpos, ypos, std::string(camera_lines[2])); ypos += y_inc;
+			MATRIX_ROW_N32_TO_STR(gGLModelView,  4,camera_lines[1]); addText(xpos, ypos, std::string(camera_lines[1])); ypos += y_inc; mBackRectCamera2.mTop = ypos + 2;
+			MATRIX_ROW_N32_TO_STR(gGLModelView,  0,camera_lines[0]); addText(xpos, ypos, std::string(camera_lines[0])); ypos += y_inc;
 
 			addText(xpos, ypos, "View Matrix");
 			ypos += y_inc;
 		}
 		// disable use of glReadPixels which messes up nVidia nSight graphics debugging
-		if (gSavedSettings.getBOOL("DebugShowColor") && !LLRender::sNsightDebugSupport)
-		{
-			U8 color[4];
-			LLCoordGL coord = gViewerWindow->getCurrentMouse();
-			glReadPixels(coord.mX, coord.mY, 1,1,GL_RGBA, GL_UNSIGNED_BYTE, color);
-			addText(xpos, ypos, llformat("%d %d %d %d", color[0], color[1], color[2], color[3]));
-			ypos += y_inc;
-		}
+        if (gSavedSettings.getBOOL("DebugShowColor") && !LLRender::sNsightDebugSupport)
+        {
+            U8 color[4];
+            LLCoordGL coord = gViewerWindow->getCurrentMouse();
 
-		// only display these messages if we are actually rendering beacons at this moment
+            // Convert x,y to raw pixel coords
+            S32 x_raw = llround(coord.mX * gViewerWindow->getWindowWidthRaw() / (F32) gViewerWindow->getWindowWidthScaled());
+            S32 y_raw = llround(coord.mY * gViewerWindow->getWindowHeightRaw() / (F32) gViewerWindow->getWindowHeightScaled());
+            
+            glReadPixels(x_raw, y_raw, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, color);
+            addText(xpos, ypos, llformat("Pixel <%1d, %1d> R:%1d G:%1d B:%1d A:%1d", x_raw, y_raw, color[0], color[1], color[2], color[3]));
+            ypos += y_inc;
+        }
+
+        // only display these messages if we are actually rendering beacons at this moment
 		if (LLPipeline::getRenderBeacons() && LLFloaterReg::instanceVisible("beacons"))
 		{
 			if (LLPipeline::getRenderMOAPBeacons())
@@ -884,6 +989,18 @@ public:
 	void draw()
 	{
 		LL_RECORD_BLOCK_TIME(FTM_DISPLAY_DEBUG_TEXT);
+
+		// Camera matrix text is hard to see again a white background
+		// Add a dark background underneath the matrices for readability (contrast)
+		if (mBackRectCamera1.mTop >= 0)
+		{
+			mBackColor.setAlpha( 0.75f );
+			gl_rect_2d(mBackRectCamera1, mBackColor, true);
+
+			mBackColor.setAlpha( 0.66f );
+			gl_rect_2d(mBackRectCamera2, mBackColor, true);
+		}
+
 		for (line_list_t::iterator iter = mLineList.begin();
 			 iter != mLineList.end(); ++iter)
 		{
@@ -892,7 +1009,6 @@ public:
 											 LLFontGL::LEFT, LLFontGL::TOP,
 											 LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
 		}
-		mLineList.clear();
 	}
 
 };
@@ -1800,8 +1916,8 @@ LLViewerWindow::LLViewerWindow(const Params& p)
 		ms_sleep(5000) ; //wait for 5 seconds.
 
 		LLSplashScreen::update(LLTrans::getString("ShuttingDown"));
-#if LL_LINUX || LL_SOLARIS
-		LL_WARNS() << "Unable to create window, be sure screen is set at 32-bit color and your graphics driver is configured correctly.  See README-linux.txt or README-solaris.txt for further information."
+#if LL_LINUX
+		LL_WARNS() << "Unable to create window, be sure screen is set at 32-bit color and your graphics driver is configured correctly.  See README-linux.txt for further information."
 				<< LL_ENDL;
 #else
 		LL_WARNS("Window") << "Unable to create window, be sure screen is set at 32-bit color in Control Panels->Display->Settings"
@@ -4735,10 +4851,6 @@ BOOL LLViewerWindow::rawSnapshot(LLImageRaw *raw, S32 image_width, S32 image_hei
 		return FALSE;
 	}
 	//check if there is enough memory for the snapshot image
-	if(LLPipeline::sMemAllocationThrottled)
-	{
-		return FALSE ; //snapshot taking is disabled due to memory restriction.
-	}
 	if(image_width * image_height > (1 << 22)) //if snapshot image is larger than 2K by 2K
 	{
 		if(!LLMemory::tryToAlloc(NULL, image_width * image_height * 3))
diff --git a/indra/newview/llvoicevivox.cpp b/indra/newview/llvoicevivox.cpp
index 96b7dac59d..04d84ad905 100644
--- a/indra/newview/llvoicevivox.cpp
+++ b/indra/newview/llvoicevivox.cpp
@@ -359,7 +359,7 @@ LLVivoxVoiceClient::LLVivoxVoiceClient() :
 //	gMuteListp->addObserver(&mutelist_listener);
 
 	
-#if LL_DARWIN || LL_LINUX || LL_SOLARIS
+#if LL_DARWIN || LL_LINUX
 		// HACK: THIS DOES NOT BELONG HERE
 		// When the vivox daemon dies, the next write attempt on our socket generates a SIGPIPE, which kills us.
 		// This should cause us to ignore SIGPIPE and handle the error through proper channels.
diff --git a/indra/newview/llvosky.cpp b/indra/newview/llvosky.cpp
index 2037aca7e9..878d7287ed 100644
--- a/indra/newview/llvosky.cpp
+++ b/indra/newview/llvosky.cpp
@@ -209,14 +209,7 @@ void LLSkyTex::create()
 
 void LLSkyTex::createGLImage(S32 which)
 {	
-    if (mIsShiny)
-    {
-        mTexture[which]->setExplicitFormat(GL_RGBA8, GL_RGBA);
-    }
-    else
-    {
-        mTexture[which]->setExplicitFormat(GL_SRGB8_ALPHA8, GL_RGBA);
-    }
+	mTexture[which]->setExplicitFormat(GL_RGBA8, GL_RGBA);
 	mTexture[which]->createGLTexture(0, mImageRaw[which], 0, TRUE, LLGLTexture::LOCAL);
 	mTexture[which]->setAddressMode(LLTexUnit::TAM_CLAMP);
 }
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 2d1a882a7e..3bdb8a2981 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -2295,11 +2295,243 @@ S32 LLVOVolume::setTEMaterialID(const U8 te, const LLMaterialID& pMaterialID)
 	return res;
 }
 
+bool LLVOVolume::notifyAboutCreatingTexture(LLViewerTexture *texture)
+{ //Ok, here we have confirmation about texture creation, check our wait-list
+  //and make changes, or return false
+
+	std::pair<mmap_UUID_MAP_t::iterator, mmap_UUID_MAP_t::iterator> range = mWaitingTextureInfo.equal_range(texture->getID());
+
+	typedef std::map<U8, LLMaterialPtr> map_te_material;
+	map_te_material new_material;
+
+	for(mmap_UUID_MAP_t::iterator range_it = range.first; range_it != range.second; ++range_it)
+	{
+		LLMaterialPtr cur_material = getTEMaterialParams(range_it->second.te);
+
+		//here we just interesting in DIFFUSE_MAP only!
+		if(NULL != cur_material.get() && LLRender::DIFFUSE_MAP == range_it->second.map && GL_RGBA != texture->getPrimaryFormat())
+		{ //ok let's check the diffuse mode
+			switch(cur_material->getDiffuseAlphaMode())
+			{
+			case LLMaterial::DIFFUSE_ALPHA_MODE_BLEND:
+			case LLMaterial::DIFFUSE_ALPHA_MODE_EMISSIVE:
+			case LLMaterial::DIFFUSE_ALPHA_MODE_MASK:
+				{ //uups... we have non 32 bit texture with LLMaterial::DIFFUSE_ALPHA_MODE_* => LLMaterial::DIFFUSE_ALPHA_MODE_NONE
+
+					LLMaterialPtr mat = NULL;
+					map_te_material::iterator it = new_material.find(range_it->second.te);
+					if(new_material.end() == it) {
+						mat = new LLMaterial(cur_material->asLLSD());
+						new_material.insert(map_te_material::value_type(range_it->second.te, mat));
+					} else {
+						mat = it->second;
+					}
+
+					mat->setDiffuseAlphaMode(LLMaterial::DIFFUSE_ALPHA_MODE_NONE);
+
+				} break;
+			} //switch
+		} //if
+	} //for
+
+	//setup new materials
+	for(map_te_material::const_iterator it = new_material.begin(), end = new_material.end(); it != end; ++it)
+	{
+		LLMaterialMgr::getInstance()->put(getID(), it->first, *it->second);
+		LLViewerObject::setTEMaterialParams(it->first, it->second);
+	}
+
+	//clear wait-list
+	mWaitingTextureInfo.erase(range.first, range.second);
+
+	return 0 != new_material.size();
+}
+
+bool LLVOVolume::notifyAboutMissingAsset(LLViewerTexture *texture)
+{ //Ok, here if we wait information about texture and it's missing
+  //then depending from the texture map (diffuse, normal, or specular)
+  //make changes in material and confirm it. If not return false.
+	std::pair<mmap_UUID_MAP_t::iterator, mmap_UUID_MAP_t::iterator> range = mWaitingTextureInfo.equal_range(texture->getID());
+	if(range.first == range.second) return false;
+
+	typedef std::map<U8, LLMaterialPtr> map_te_material;
+	map_te_material new_material;
+	
+	for(mmap_UUID_MAP_t::iterator range_it = range.first; range_it != range.second; ++range_it)
+	{
+		LLMaterialPtr cur_material = getTEMaterialParams(range_it->second.te);
+		if (cur_material.isNull())
+			continue;
+
+		switch(range_it->second.map)
+		{
+		case LLRender::DIFFUSE_MAP:
+			{
+				if(LLMaterial::DIFFUSE_ALPHA_MODE_NONE != cur_material->getDiffuseAlphaMode())
+				{ //missing texture + !LLMaterial::DIFFUSE_ALPHA_MODE_NONE => LLMaterial::DIFFUSE_ALPHA_MODE_NONE
+					LLMaterialPtr mat = NULL;
+					map_te_material::iterator it = new_material.find(range_it->second.te);
+					if(new_material.end() == it) {
+						mat = new LLMaterial(cur_material->asLLSD());
+						new_material.insert(map_te_material::value_type(range_it->second.te, mat));
+					} else {
+						mat = it->second;
+					}
+
+					mat->setDiffuseAlphaMode(LLMaterial::DIFFUSE_ALPHA_MODE_NONE);
+				}
+			} break;
+		case LLRender::NORMAL_MAP:
+			{ //missing texture => reset material texture id
+				LLMaterialPtr mat = NULL;
+				map_te_material::iterator it = new_material.find(range_it->second.te);
+				if(new_material.end() == it) {
+					mat = new LLMaterial(cur_material->asLLSD());
+					new_material.insert(map_te_material::value_type(range_it->second.te, mat));
+				} else {
+					mat = it->second;
+				}
+
+				mat->setNormalID(LLUUID::null);
+			} break;
+		case LLRender::SPECULAR_MAP:
+			{ //missing texture => reset material texture id
+				LLMaterialPtr mat = NULL;
+				map_te_material::iterator it = new_material.find(range_it->second.te);
+				if(new_material.end() == it) {
+					mat = new LLMaterial(cur_material->asLLSD());
+					new_material.insert(map_te_material::value_type(range_it->second.te, mat));
+				} else {
+					mat = it->second;
+				}
+
+				mat->setSpecularID(LLUUID::null);
+			} break;
+		case LLRender::NUM_TEXTURE_CHANNELS:
+				//nothing to do, make compiler happy
+			break;
+		} //switch
+	} //for
+
+	//setup new materials
+	for(map_te_material::const_iterator it = new_material.begin(), end = new_material.end(); it != end; ++it)
+	{
+		LLMaterialMgr::getInstance()->setLocalMaterial(getRegion()->getRegionID(), it->second);
+		LLViewerObject::setTEMaterialParams(it->first, it->second);
+	}
+
+	//clear wait-list
+	mWaitingTextureInfo.erase(range.first, range.second);
+
+	return 0 != new_material.size();
+}
+
 S32 LLVOVolume::setTEMaterialParams(const U8 te, const LLMaterialPtr pMaterialParams)
 {
-	S32 res = LLViewerObject::setTEMaterialParams(te, pMaterialParams);
+	LLMaterialPtr pMaterial = const_cast<LLMaterialPtr&>(pMaterialParams);
+
+	if(pMaterialParams)
+	{ //check all of them according to material settings
+
+		LLViewerTexture *img_diffuse = getTEImage(te);
+		LLViewerTexture *img_normal = getTENormalMap(te);
+		LLViewerTexture *img_specular = getTESpecularMap(te);
+
+		llassert(NULL != img_diffuse);
+
+		LLMaterialPtr new_material = NULL;
+
+		//diffuse
+		if(NULL != img_diffuse)
+		{ //guard
+			if(0 == img_diffuse->getPrimaryFormat() && !img_diffuse->isMissingAsset())
+			{ //ok here we don't have information about texture, let's belief and leave material settings
+			  //but we remember this case
+				mWaitingTextureInfo.insert(mmap_UUID_MAP_t::value_type(img_diffuse->getID(), material_info(LLRender::DIFFUSE_MAP, te)));
+			}
+			else
+			{
+				bool bSetDiffuseNone = false;
+				if(img_diffuse->isMissingAsset())
+				{
+					bSetDiffuseNone = true;
+				}
+				else
+				{
+					switch(pMaterialParams->getDiffuseAlphaMode())
+					{
+					case LLMaterial::DIFFUSE_ALPHA_MODE_BLEND:
+					case LLMaterial::DIFFUSE_ALPHA_MODE_EMISSIVE:
+					case LLMaterial::DIFFUSE_ALPHA_MODE_MASK:
+						{ //all of them modes available only for 32 bit textures
+							LLTextureEntry* tex_entry = getTE(te);
+							bool bIsBakedImageId = false;
+							if (tex_entry && LLAvatarAppearanceDefines::LLAvatarAppearanceDictionary::isBakedImageId(tex_entry->getID()))
+							{
+								bIsBakedImageId = true;
+							}
+							if (GL_RGBA != img_diffuse->getPrimaryFormat() && !bIsBakedImageId)
+							{
+								bSetDiffuseNone = true;
+							}
+						} break;
+					}
+				} //else
+
+
+				if(bSetDiffuseNone)
+				{ //upps... we should substitute this material with LLMaterial::DIFFUSE_ALPHA_MODE_NONE
+					new_material = new LLMaterial(pMaterialParams->asLLSD());
+					new_material->setDiffuseAlphaMode(LLMaterial::DIFFUSE_ALPHA_MODE_NONE);
+				}
+			}
+		}
+
+		//normal
+		if(LLUUID::null != pMaterialParams->getNormalID())
+		{
+			if(img_normal && img_normal->isMissingAsset() && img_normal->getID() == pMaterialParams->getNormalID())
+			{
+				if(!new_material) {
+					new_material = new LLMaterial(pMaterialParams->asLLSD());
+				}
+				new_material->setNormalID(LLUUID::null);
+			}
+			else if(NULL == img_normal || 0 == img_normal->getPrimaryFormat())
+			{ //ok here we don't have information about texture, let's belief and leave material settings
+				//but we remember this case
+				mWaitingTextureInfo.insert(mmap_UUID_MAP_t::value_type(pMaterialParams->getNormalID(), material_info(LLRender::NORMAL_MAP,te)));
+			}
+
+		}
+
+
+		//specular
+		if(LLUUID::null != pMaterialParams->getSpecularID())
+		{
+			if(img_specular && img_specular->isMissingAsset() && img_specular->getID() == pMaterialParams->getSpecularID())
+			{
+				if(!new_material) {
+					new_material = new LLMaterial(pMaterialParams->asLLSD());
+				}
+				new_material->setSpecularID(LLUUID::null);
+			}
+			else if(NULL == img_specular || 0 == img_specular->getPrimaryFormat())
+			{ //ok here we don't have information about texture, let's belief and leave material settings
+				//but we remember this case
+				mWaitingTextureInfo.insert(mmap_UUID_MAP_t::value_type(pMaterialParams->getSpecularID(), material_info(LLRender::SPECULAR_MAP, te)));
+			}
+		}
+
+		if(new_material) {
+			pMaterial = new_material;
+			LLMaterialMgr::getInstance()->setLocalMaterial(getRegion()->getRegionID(), pMaterial);
+		}
+	}
+
+	S32 res = LLViewerObject::setTEMaterialParams(te, pMaterial);
 
-	LL_DEBUGS("MaterialTEs") << "te " << (S32)te << " material " << ((pMaterialParams) ? pMaterialParams->asLLSD() : LLSD("null")) << " res " << res
+	LL_DEBUGS("MaterialTEs") << "te " << (S32)te << " material " << ((pMaterial) ? pMaterial->asLLSD() : LLSD("null")) << " res " << res
 							 << ( LLSelectMgr::getInstance()->getSelection()->contains(const_cast<LLVOVolume*>(this), te) ? " selected" : " not selected" )
 							 << LL_ENDL;
 	setChanged(ALL_CHANGED);
@@ -4366,7 +4598,7 @@ BOOL LLVOVolume::lineSegmentIntersect(const LLVector4a& start, const LLVector4a&
 					LLMaterial* mat = te->getMaterialParams();
 					if (mat)
 					{
-						U8 mode = mat->getDiffuseAlphaModeRender();
+						U8 mode = mat->getDiffuseAlphaMode();
 
 						if (mode == LLMaterial::DIFFUSE_ALPHA_MODE_EMISSIVE
 							|| mode == LLMaterial::DIFFUSE_ALPHA_MODE_NONE
@@ -5012,7 +5244,7 @@ void LLVolumeGeometryManager::registerFace(LLSpatialGroup* group, LLFace* facep,
 			}
 
 			draw_info->mAlphaMaskCutoff = mat->getAlphaMaskCutoff() * (1.f / 255.f);
-			draw_info->mDiffuseAlphaMode = mat->getDiffuseAlphaModeRender();
+			draw_info->mDiffuseAlphaMode = mat->getDiffuseAlphaMode();
 			draw_info->mNormalMap = facep->getViewerObject()->getTENormalMap(facep->getTEOffset());
 		}
 		else 
@@ -5374,7 +5606,7 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
 
 						if (mat && LLPipeline::sRenderDeferred)
 						{
-							U8 alpha_mode = mat->getDiffuseAlphaModeRender();
+							U8 alpha_mode = mat->getDiffuseAlphaMode();
 
 							bool is_alpha = type == LLDrawPool::POOL_ALPHA &&
 								(alpha_mode == LLMaterial::DIFFUSE_ALPHA_MODE_BLEND ||
@@ -5403,7 +5635,7 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
 						else if (mat)
 						{							
 							bool is_alpha = type == LLDrawPool::POOL_ALPHA;
-							U8 mode = mat->getDiffuseAlphaModeRender();
+							U8 mode = mat->getDiffuseAlphaMode();
 							bool can_be_shiny = mode == LLMaterial::DIFFUSE_ALPHA_MODE_NONE ||
 												mode == LLMaterial::DIFFUSE_ALPHA_MODE_EMISSIVE;
 							
@@ -6301,7 +6533,7 @@ U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace
 			bool can_be_shiny = true;
 			if (mat)
 			{
-				U8 mode = mat->getDiffuseAlphaModeRender();
+				U8 mode = mat->getDiffuseAlphaMode();
 				can_be_shiny = mode == LLMaterial::DIFFUSE_ALPHA_MODE_NONE ||
 								mode == LLMaterial::DIFFUSE_ALPHA_MODE_EMISSIVE;
 			}
@@ -6323,7 +6555,7 @@ U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace
 				//
 				if (te->getFullbright())
 				{
-					if (mat->getDiffuseAlphaModeRender() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
+					if (mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
 					{
 						if (opaque)
 						{
@@ -6408,7 +6640,7 @@ U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace
 			}
 			else if (mat)
 			{
-				U8 mode = mat->getDiffuseAlphaModeRender();
+				U8 mode = mat->getDiffuseAlphaMode();
 
                 is_alpha = (is_alpha || (mode == LLMaterial::DIFFUSE_ALPHA_MODE_BLEND));
 
@@ -6507,7 +6739,7 @@ U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace
 				}
 				else if (fullbright || bake_sunlight)
 				{ //fullbright
-					if (mat && mat->getDiffuseAlphaModeRender() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
+					if (mat && mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
 					{
 						registerFace(group, facep, LLRenderPass::PASS_FULLBRIGHT_ALPHA_MASK);
 					}
@@ -6529,7 +6761,7 @@ U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace
 					else
 					{ //all around simple
 						llassert(mask & LLVertexBuffer::MAP_NORMAL);
-						if (mat && mat->getDiffuseAlphaModeRender() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
+						if (mat && mat->getDiffuseAlphaMode() == LLMaterial::DIFFUSE_ALPHA_MODE_MASK)
 						{ //material alpha mask can be respected in non-deferred
 							registerFace(group, facep, LLRenderPass::PASS_ALPHA_MASK);
 						}
diff --git a/indra/newview/llvovolume.h b/indra/newview/llvovolume.h
index 97888ed869..ce400a3498 100644
--- a/indra/newview/llvovolume.h
+++ b/indra/newview/llvovolume.h
@@ -441,6 +441,26 @@ protected:
 	static S32 sNumLODChanges;
 
 	friend class LLVolumeImplFlexible;
+
+public:
+	bool notifyAboutCreatingTexture(LLViewerTexture *texture);
+	bool notifyAboutMissingAsset(LLViewerTexture *texture);
+
+private:
+	struct material_info 
+	{
+		LLRender::eTexIndex map;
+		U8 te;
+
+		material_info(LLRender::eTexIndex map_, U8 te_)
+			: map(map_)
+			, te(te_)
+		{}
+	};
+
+	typedef std::multimap<LLUUID, material_info> mmap_UUID_MAP_t;
+	mmap_UUID_MAP_t	mWaitingTextureInfo;
+
 };
 
 #endif // LL_LLVOVOLUME_H
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index bd667acb53..cd1b9c7c69 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -129,6 +129,16 @@
 //
 #define MATERIALS_IN_REFLECTIONS 0
 
+// NOTE: Keep in sync with indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
+// NOTE: Unused consts are commented out since some compilers (on macOS) may complain about unused variables.
+//  const S32 WATER_REFLECT_NONE_WATER_OPAQUE       = -2;
+    const S32 WATER_REFLECT_NONE_WATER_TRANSPARENT  = -1;
+    const S32 WATER_REFLECT_MINIMAL                 =  0;
+//  const S32 WATER_REFLECT_TERRAIN                 =  1;
+    const S32 WATER_REFLECT_STATIC_OBJECTS          =  2;
+    const S32 WATER_REFLECT_AVATARS                 =  3;
+    const S32 WATER_REFLECT_EVERYTHING              =  4;
+
 bool gShiftFrame = false;
 
 //cached settings
@@ -348,7 +358,6 @@ bool	LLPipeline::sRenderFrameTest = false;
 bool	LLPipeline::sRenderAttachedLights = true;
 bool	LLPipeline::sRenderAttachedParticles = true;
 bool	LLPipeline::sRenderDeferred = false;
-bool    LLPipeline::sMemAllocationThrottled = false;
 S32		LLPipeline::sVisibleLightCount = 0;
 F32		LLPipeline::sMinRenderSize = 0.f;
 bool	LLPipeline::sRenderingHUDs;
@@ -718,24 +727,6 @@ void LLPipeline::destroyGL()
 
 static LLTrace::BlockTimerStatHandle FTM_RESIZE_SCREEN_TEXTURE("Resize Screen Texture");
 
-//static
-void LLPipeline::throttleNewMemoryAllocation(bool disable)
-{
-	if(sMemAllocationThrottled != disable)
-	{
-		sMemAllocationThrottled = disable ;
-
-		if(sMemAllocationThrottled)
-		{
-			//send out notification
-			LLNotification::Params params("LowMemory");
-			LLNotifications::instance().add(params);
-
-			//release some memory.
-		}
-	}
-}
-
 void LLPipeline::requestResizeScreenTexture()
 {
     gResizeScreenTexture = TRUE;
@@ -1677,7 +1668,7 @@ U32 LLPipeline::getPoolTypeFromTE(const LLTextureEntry* te, LLViewerTexture* ima
 
 	if (alpha && mat)
 	{
-		switch (mat->getDiffuseAlphaModeRender())
+		switch (mat->getDiffuseAlphaMode())
 		{
 			case 1:
 				alpha = true; // Material's alpha mode is set to blend.  Toss it into the alpha draw pool.
@@ -9270,30 +9261,29 @@ inline float sgn(float a)
 }
 
 void LLPipeline::generateWaterReflection(LLCamera& camera_in)
-{	
-	if (LLPipeline::sWaterReflections && assertInitialized() && LLDrawPoolWater::sNeedsReflectionUpdate)
-	{
-		bool skip_avatar_update = false;
-		if (!isAgentAvatarValid() || gAgentCamera.getCameraAnimating() || gAgentCamera.getCameraMode() != CAMERA_MODE_MOUSELOOK || !LLVOAvatar::sVisibleInFirstPerson)
-		{
-			skip_avatar_update = true;
-		}
-		
-        LLCamera camera = camera_in;
+{
+    if (LLPipeline::sWaterReflections && assertInitialized() && LLDrawPoolWater::sNeedsReflectionUpdate)
+    {
+        bool skip_avatar_update = false;
+        if (!isAgentAvatarValid() || gAgentCamera.getCameraAnimating() || gAgentCamera.getCameraMode() != CAMERA_MODE_MOUSELOOK || !LLVOAvatar::sVisibleInFirstPerson)
+        {
+            skip_avatar_update = true;
+        }
 
+        LLCamera camera = camera_in;
         camera.setFar(camera_in.getFar() * 0.75f);
 
         bool camera_is_underwater = LLViewerCamera::getInstance()->cameraUnderWater();
 
-		LLPipeline::sReflectionRender = true;
-		
-		gPipeline.pushRenderTypeMask();
+        LLPipeline::sReflectionRender = true;
+
+        gPipeline.pushRenderTypeMask();
 
         glh::matrix4f saved_modelview  = get_current_modelview();
         glh::matrix4f saved_projection = get_current_projection();
-		glh::matrix4f mat;
+        glh::matrix4f mat;
 
-        S32 detail = RenderReflectionDetail;
+        S32 reflection_detail  = RenderReflectionDetail;
 
         F32 water_height      = gAgent.getRegion()->getWaterHeight(); 
         F32 camera_height     = camera_in.getOrigin().mV[VZ];
@@ -9307,32 +9297,34 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
 
         camera.setOriginAndLookAt(reflect_origin, LLVector3::z_axis, reflect_interest_point);
 
-		//plane params
+        //plane params
         LLPlane plane;
-		LLVector3 pnorm;
-		S32 water_clip = 0;
+        LLVector3 pnorm;
+        S32 water_clip = 0;
         if (!camera_is_underwater)
-		{ //camera is above water, clip plane points up
-			pnorm.setVec(0,0,1);
+        {
+            //camera is above water, clip plane points up
+            pnorm.setVec(0,0,1);
             plane.setVec(pnorm, -water_height);
             water_clip = 1;
-		}
-		else
-		{	//camera is below water, clip plane points down
-			pnorm = LLVector3(0,0,-1);
+        }
+        else
+        {
+            //camera is below water, clip plane points down
+            pnorm = LLVector3(0,0,-1);
             plane.setVec(pnorm, water_height);
             water_clip = -1;
-		}
+        }
 
         S32 occlusion = LLPipeline::sUseOcclusion;
 
-			//disable occlusion culling for reflection map for now
-			LLPipeline::sUseOcclusion = 0;
+        //disable occlusion culling for reflection map for now
+        LLPipeline::sUseOcclusion = 0;
 
         if (!camera_is_underwater)
-        {   //generate planar reflection map
-
-			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WATER0;
+        {
+            //generate planar reflection map
+            LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WATER0;
 
             gGL.matrixMode(LLRender::MM_MODELVIEW);
             gGL.pushMatrix();
@@ -9345,9 +9337,9 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
             mReflectionModelView = mat;
 
             set_current_modelview(mat);
-			gGL.loadMatrix(mat.m);
+            gGL.loadMatrix(mat.m);
 
-			LLViewerCamera::updateFrustumPlanes(camera, FALSE, TRUE);
+            LLViewerCamera::updateFrustumPlanes(camera, FALSE, TRUE);
 
             glh::vec3f    origin(0, 0, 0);
             glh::matrix4f inv_mat = mat.inverse();
@@ -9355,10 +9347,10 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
 
             camera.setOrigin(origin.v);
 
-			glCullFace(GL_FRONT);
+            glCullFace(GL_FRONT);
 
-			if (LLDrawPoolWater::sNeedsReflectionUpdate)
-			{
+            if (LLDrawPoolWater::sNeedsReflectionUpdate)
+            {
                 gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
                 glClearColor(0,0,0,0);
                 mWaterRef.bindTarget();
@@ -9368,106 +9360,127 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
                 gGL.setColorMask(true, false);
                 mWaterRef.getViewport(gGLViewport);
 
-				//initial sky pass (no user clip plane)
-				{ //mask out everything but the sky
-					gPipeline.pushRenderTypeMask();
-					gPipeline.andRenderTypeMask(LLPipeline::RENDER_TYPE_SKY,
-						LLPipeline::RENDER_TYPE_WL_SKY,
-						LLPipeline::RENDER_TYPE_CLOUDS,
-						LLPipeline::END_RENDER_TYPES);
+                //initial sky pass (no user clip plane)
+                //mask out everything but the sky
+                gPipeline.pushRenderTypeMask();
+                {
+                    if (reflection_detail >= WATER_REFLECT_MINIMAL)
+                    {
+                        gPipeline.andRenderTypeMask(
+                            LLPipeline::RENDER_TYPE_SKY,
+                            LLPipeline::RENDER_TYPE_WL_SKY,
+                            LLPipeline::RENDER_TYPE_CLOUDS,
+                            LLPipeline::END_RENDER_TYPES);
+                    }
+                    else
+                    {
+                        gPipeline.andRenderTypeMask(
+                            LLPipeline::RENDER_TYPE_SKY,
+                            LLPipeline::RENDER_TYPE_WL_SKY,
+                            LLPipeline::END_RENDER_TYPES);
+                    }
 
                     updateCull(camera, mSky);
                     stateSort(camera, mSky);
-						renderGeom(camera, TRUE);
-
-					gPipeline.popRenderTypeMask();
-				}
+                    renderGeom(camera, TRUE);
+                }
+                gPipeline.popRenderTypeMask();
 
-				gPipeline.pushRenderTypeMask();
+                if (reflection_detail >= WATER_REFLECT_NONE_WATER_TRANSPARENT)
+                {
+                    gPipeline.pushRenderTypeMask();
+                    {
+                        clearRenderTypeMask(
+                            LLPipeline::RENDER_TYPE_WATER,
+                            LLPipeline::RENDER_TYPE_VOIDWATER,
+                            LLPipeline::RENDER_TYPE_GROUND,
+                            LLPipeline::RENDER_TYPE_SKY,
+                            LLPipeline::RENDER_TYPE_CLOUDS,
+                            LLPipeline::END_RENDER_TYPES);
+
+                        if (reflection_detail > WATER_REFLECT_MINIMAL)
+                        { //mask out selected geometry based on reflection detail
+                            if (reflection_detail < WATER_REFLECT_EVERYTHING)
+                            {
+                                clearRenderTypeMask(LLPipeline::RENDER_TYPE_PARTICLES, END_RENDER_TYPES);
+                                if (reflection_detail < WATER_REFLECT_AVATARS)
+                                {
+                                    clearRenderTypeMask(
+                                        LLPipeline::RENDER_TYPE_AVATAR,
+                                        LLPipeline::RENDER_TYPE_CONTROL_AV,
+                                        END_RENDER_TYPES);
+                                    if (reflection_detail < WATER_REFLECT_STATIC_OBJECTS)
+                                    {
+                                        clearRenderTypeMask(LLPipeline::RENDER_TYPE_VOLUME, END_RENDER_TYPES);
+                                    }
+                                }
+                            }
 
-				clearRenderTypeMask(LLPipeline::RENDER_TYPE_WATER,
-					LLPipeline::RENDER_TYPE_VOIDWATER,
-					LLPipeline::RENDER_TYPE_GROUND,
-					LLPipeline::RENDER_TYPE_SKY,
-					LLPipeline::RENDER_TYPE_CLOUDS,
-					LLPipeline::END_RENDER_TYPES);	
-
-				if (detail > 0)
-				{ //mask out selected geometry based on reflection detail
-					if (detail < 4)
-					{
-						clearRenderTypeMask(LLPipeline::RENDER_TYPE_PARTICLES, END_RENDER_TYPES);
-						if (detail < 3)
-						{
-                            clearRenderTypeMask(LLPipeline::RENDER_TYPE_AVATAR, LLPipeline::RENDER_TYPE_CONTROL_AV, END_RENDER_TYPES);
-							if (detail < 2)
-							{
-								clearRenderTypeMask(LLPipeline::RENDER_TYPE_VOLUME, END_RENDER_TYPES);
-							}
-						}
-					}
+                            LLGLUserClipPlane clip_plane(plane, mReflectionModelView, saved_projection);
+                            LLGLDisable cull(GL_CULL_FACE);
+                            updateCull(camera, mReflectedObjects, -water_clip, &plane);
+                            stateSort(camera, mReflectedObjects);
+                            renderGeom(camera);
+                        }
+                    }
+                    gPipeline.popRenderTypeMask();
+                }
 
-                    LLGLUserClipPlane clip_plane(plane, mReflectionModelView, saved_projection);
-					LLGLDisable cull(GL_CULL_FACE);
-                    updateCull(camera, mReflectedObjects, -water_clip, &plane);
-                    stateSort(camera, mReflectedObjects);
-							renderGeom(camera);
-						}
-                gPipeline.popRenderTypeMask();
                 mWaterRef.flush();
-				}
+            }
 
-			glCullFace(GL_BACK);
+            glCullFace(GL_BACK);
             gGL.matrixMode(LLRender::MM_MODELVIEW);
-			gGL.popMatrix();
-            
+            gGL.popMatrix();
+
             set_current_modelview(saved_modelview);
-		}
+        }
 
         //LLPipeline::sUseOcclusion = occlusion;
 
-		camera.setOrigin(camera_in.getOrigin());
-		//render distortion map
-		static bool last_update = true;
-		if (last_update)
-		{
+        camera.setOrigin(camera_in.getOrigin());
+        //render distortion map
+        static bool last_update = true;
+        if (last_update)
+        {
             gPipeline.pushRenderTypeMask();
 
-			camera.setFar(camera_in.getFar());
-			clearRenderTypeMask(LLPipeline::RENDER_TYPE_WATER,
-								LLPipeline::RENDER_TYPE_VOIDWATER,
-								LLPipeline::RENDER_TYPE_GROUND,
-								END_RENDER_TYPES);	
+            camera.setFar(camera_in.getFar());
+            clearRenderTypeMask(
+                LLPipeline::RENDER_TYPE_WATER,
+                LLPipeline::RENDER_TYPE_VOIDWATER,
+                LLPipeline::RENDER_TYPE_GROUND,
+                END_RENDER_TYPES);
 
             // intentionally inverted so that distortion map contents (objects under the water when we're above it)
             // will properly include water fog effects
             LLPipeline::sUnderWaterRender = !camera_is_underwater;
 
-			if (LLPipeline::sUnderWaterRender)
-			{
+            if (LLPipeline::sUnderWaterRender)
+            {
                 clearRenderTypeMask(
-                                    LLPipeline::RENDER_TYPE_GROUND,
-									LLPipeline::RENDER_TYPE_SKY,
-									LLPipeline::RENDER_TYPE_CLOUDS,
-									LLPipeline::RENDER_TYPE_WL_SKY,
-									END_RENDER_TYPES);		
-			}
-			LLViewerCamera::updateFrustumPlanes(camera);
+                    LLPipeline::RENDER_TYPE_GROUND,
+                    LLPipeline::RENDER_TYPE_SKY,
+                    LLPipeline::RENDER_TYPE_CLOUDS,
+                    LLPipeline::RENDER_TYPE_WL_SKY,
+                    END_RENDER_TYPES);
+            }
+            LLViewerCamera::updateFrustumPlanes(camera);
+
+            gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 
-			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-			
             if (LLPipeline::sUnderWaterRender || LLDrawPoolWater::sNeedsDistortionUpdate)
             {
                 LLPipeline::sDistortionRender = true;
 
                 LLColor3 col = LLEnvironment::instance().getCurrentWater()->getWaterFogColor();
-			glClearColor(col.mV[0], col.mV[1], col.mV[2], 0.f);
+                glClearColor(col.mV[0], col.mV[1], col.mV[2], 0.f);
+
+                LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WATER1;
 
-			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WATER1;
-			
                 mWaterDis.bindTarget();
-			mWaterDis.getViewport(gGLViewport);
-			
+                mWaterDis.getViewport(gGLViewport);
+
                 gGL.setColorMask(true, true);
                 mWaterDis.clear();
                 gGL.setColorMask(true, false);
@@ -9479,66 +9492,69 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
                 LLPlane plane(-pnorm, water_dist);
                 LLGLUserClipPlane clip_plane(plane, saved_modelview, saved_projection);
 
-				gGL.setColorMask(true, true);
-				mWaterDis.clear();
-				gGL.setColorMask(true, false);
+                gGL.setColorMask(true, true);
+                mWaterDis.clear();
+                gGL.setColorMask(true, false);
 
                 // ignore clip plane if we're underwater and viewing distortion map of objects above waterline
                 if (camera_is_underwater)
-				{
+                {
                     clip_plane.disable();
-				}
+                }
 
-                updateCull(camera, mRefractedObjects, water_clip, &plane);
-                stateSort(camera, mRefractedObjects);
-					renderGeom(camera);
+                if (reflection_detail >= WATER_REFLECT_NONE_WATER_TRANSPARENT)
+                {
+                    updateCull(camera, mRefractedObjects, water_clip, &plane);
+                    stateSort(camera, mRefractedObjects);
+                    renderGeom(camera);
+                }
 
-					if (LLGLSLShader::sNoFixedFunction)
-					{
-						gUIProgram.bind();
-					}
-					
-					LLWorld::getInstance()->renderPropertyLines();
-					
-					if (LLGLSLShader::sNoFixedFunction)
-					{
-						gUIProgram.unbind();
-					}
+                if (LLGLSLShader::sNoFixedFunction)
+                {
+                    gUIProgram.bind();
+                }
+
+                LLWorld::getInstance()->renderPropertyLines();
+
+                if (LLGLSLShader::sNoFixedFunction)
+                {
+                    gUIProgram.unbind();
+                }
 
                 mWaterDis.flush();
-			}
+            }
 
             LLPipeline::sDistortionRender = false;
-			
+
             gPipeline.popRenderTypeMask();
-		}
-		last_update = LLDrawPoolWater::sNeedsReflectionUpdate && LLDrawPoolWater::sNeedsDistortionUpdate;
+        }
+        last_update = LLDrawPoolWater::sNeedsReflectionUpdate && LLDrawPoolWater::sNeedsDistortionUpdate;
 
         gPipeline.popRenderTypeMask();
 
         LLPipeline::sUseOcclusion     = occlusion;
         LLPipeline::sUnderWaterRender = false;
-		LLPipeline::sReflectionRender = false;
+        LLPipeline::sReflectionRender = false;
 
         LLDrawPoolWater::sNeedsReflectionUpdate = FALSE;
         LLDrawPoolWater::sNeedsDistortionUpdate = FALSE;
 
-		if (!LLRenderTarget::sUseFBO)
-		{
-			glClear(GL_DEPTH_BUFFER_BIT);
-		}
-		glClearColor(0.f, 0.f, 0.f, 0.f);
-		gViewerWindow->setup3DViewport();
-		
-		LLGLState::checkStates();
+        if (!LLRenderTarget::sUseFBO)
+        {
+            glClear(GL_DEPTH_BUFFER_BIT);
+        }
+        glClearColor(0.f, 0.f, 0.f, 0.f);
+        gViewerWindow->setup3DViewport();
 
-		if (!skip_avatar_update)
-		{
-			gAgentAvatarp->updateAttachmentVisibility(gAgentCamera.getCameraMode());
-		}
+        LLGLState::checkStates();
 
-		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
-	}
+        if (!skip_avatar_update)
+        {
+            gAgentAvatarp->updateAttachmentVisibility(gAgentCamera.getCameraMode());
+        }
+
+        LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
+    }
 }
 
 glh::matrix4f look(const LLVector3 pos, const LLVector3 dir, const LLVector3 up)
diff --git a/indra/newview/pipeline.h b/indra/newview/pipeline.h
index 52fd51cd80..0eaa6b141d 100644
--- a/indra/newview/pipeline.h
+++ b/indra/newview/pipeline.h
@@ -414,10 +414,6 @@ public:
 	static void updateRenderDeferred();
 	static void refreshCachedSettings();
 
-	static void throttleNewMemoryAllocation(bool disable);
-
-	
-
 	void addDebugBlip(const LLVector3& position, const LLColor4& color);
 
 	void hidePermanentObjects( std::vector<U32>& restoreList );
@@ -600,7 +596,6 @@ public:
 	static bool				sRenderAttachedLights;
 	static bool				sRenderAttachedParticles;
 	static bool				sRenderDeferred;
-	static bool             sMemAllocationThrottled;
 	static S32				sVisibleLightCount;
 	static F32				sMinRenderSize;
 	static bool				sRenderingHUDs;
diff --git a/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml b/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
index e282f1b179..3cc99b28c9 100644
--- a/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
+++ b/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
@@ -724,6 +724,14 @@
     name="Reflections"
     width="150">
       <combo_box.item
+        label="None; opaque"
+        name="0"
+        value="-2"/>
+      <combo_box.item
+        label="None; transparent"
+        name="0"
+        value="-1"/>
+      <combo_box.item
         label="Minimal"
         name="0"
         value="0"/>
diff --git a/indra/newview/skins/default/xui/en/notifications.xml b/indra/newview/skins/default/xui/en/notifications.xml
index a1c73d12d0..cc0dc5c3cc 100644
--- a/indra/newview/skins/default/xui/en/notifications.xml
+++ b/indra/newview/skins/default/xui/en/notifications.xml
@@ -9588,6 +9588,12 @@ You do not appear to have the proper hardware requirements for [APP_NAME]. [APP_
 If you continue to have problems, please visit the [SUPPORT_SITE].
   </global>
 
+  <global name="UnsupportedIntelDriver">
+The installed Intel graphics driver for [GPUNAME], version [VERSION], is significantly out of date and is known to cause excessive rates of program crashes. You are strongly advised to update to a current Intel driver
+
+Do you want to check the Intel driver website?
+  </global>
+
   <global name="UnsupportedCPUAmount">
 796
   </global>