Automated merge with http://hg.secondlife.com/viewer-release

8 files changed, 258 insertions, 212 deletions

diff --git a/indra/newview/app_settings/cmd_line.xml b/indra/newview/app_settings/cmd_line.xml
index 15434f2b8f..be79f91919 100644
--- a/indra/newview/app_settings/cmd_line.xml
+++ b/indra/newview/app_settings/cmd_line.xml
@@ -1,45 +1,101 @@
 <?xml version="1.0"?>
 <llsd>
   <map>
-    <key>help</key>
+    <!-- Please insert new keys in alphabetical order. -->
+    <key>analyzeperformance</key>
     <map>
       <key>desc</key>
-      <string>display this help message</string>
+      <string>When used in conjunction with logperformance, analyzes result of log against baseline.</string>
+      <key>map-to</key>
+      <string>AnalyzePerformance</string>
+    </map>
 
-      <key>short</key>
-      <string>h</string>
+    <key>autologin</key>
+    <map>
+      <key>desc</key>
+      <string>log in as last saved user</string>
+      <key>map-to</key>
+      <string>AutoLogin</string>
     </map>
 
-    <key>port</key>
+    <key>channel</key>
     <map>
       <key>count</key>
       <integer>1</integer>
-      <key>map-to</key>
-      <string>UserConnectionPort</string>
+      <!-- Special case. Not mapped to a setting. -->
     </map>
 
-    <key>drop</key>
+    <key>console</key>
     <map>
       <key>count</key>
       <integer>1</integer>
       <key>map-to</key>
-      <string>PacketDropPercentage</string>
+      <string>ShowConsoleWindow</string>
     </map>
 
-    <key>inbw</key>
+    <key>cooperative</key>
     <map>
+      <key>desc</key>
+      <string>Yield some idle time to local host.</string>
       <key>count</key>
       <integer>1</integer>
       <key>map-to</key>
-      <string>InBandwidth</string>
+      <string>YieldTime</string>
     </map>
 
-    <key>outbw</key>
+    <key>crashonstartup</key>
+    <map>
+      <key>desc</key>
+      <string>Crashes on startup. For QA use.</string>
+      <key>map-to</key>
+      <string>CrashOnStartup</string>
+    </map>
+
+    <key>debugsession</key>
+    <map>
+      <key>desc</key>
+      <string>Run as if RenderDebugGL is TRUE, but log errors until end of session.</string>
+      <key>map-to</key>
+      <string>DebugSession</string>
+    </map>
+
+    <key>debugviews</key>
+    <map>
+      <key>map-to</key>
+      <string>DebugViews</string>
+    </map>
+
+    <key>disablecrashlogger</key>
+    <map>
+      <key>desc</key>
+      <string>Disables the crash logger and lets the OS handle crashes</string>
+      <key>map-to</key>
+      <string>DisableCrashLogger</string>
+    </map>
+
+    <key>drop</key>
     <map>
       <key>count</key>
       <integer>1</integer>
       <key>map-to</key>
-      <string>OutBandwidth</string>
+      <string>PacketDropPercentage</string>
+    </map>
+
+    <key>god</key>
+    <map>
+      <key>desc</key>
+      <string>Log in a god if you have god access.</string>
+      <key>map-to</key>
+      <string>ConnectAsGod</string>
+    </map>
+
+    <key>graphicslevel</key>
+    <map>
+      <key>desc</key>
+      <string>Set the detail level. 
+0 - low, 1 - medium, 2 - high, 3 - ultra</string>
+      <key>count</key>
+      <integer>1</integer>
     </map>
 
     <key>grid</key>
@@ -52,16 +108,13 @@
       <string>CmdLineGridChoice</string>
     </map>
 
-    <key>loginuri</key>
+    <key>help</key>
     <map>
       <key>desc</key>
-      <string>login server and CGI script to use</string>
-      <key>count</key>
-      <integer>1</integer>
-      <key>compose</key>
-      <boolean>true</boolean>
-      <key>map-to</key>
-      <string>CmdLineLoginURI</string>
+      <string>display this help message</string>
+
+      <key>short</key>
+      <string>h</string>
     </map>
 
     <key>helperuri</key>
@@ -74,44 +127,73 @@
       <string>CmdLineHelperURI</string>
     </map>
 
-    <key>debugviews</key>
+    <key>ignorepixeldepth</key>
     <map>
+      <key>desc</key>
+      <string>Ignore pixel depth settings.</string>
       <key>map-to</key>
-      <string>DebugViews</string>
+      <string>IgnorePixelDepth</string>
     </map>
 
-    <key>skin</key>
+    <key>inbw</key>
+    <map>
+      <key>count</key>
+      <integer>1</integer>
+      <key>map-to</key>
+      <string>InBandwidth</string>
+    </map>
+
+    <key>leap</key>
     <map>
       <key>desc</key>
-      <string>ui/branding skin folder to use</string>
+      <string>command line to run an LLSD Event API Plugin</string>
       <key>count</key>
       <integer>1</integer>
+      <!-- you can specify multiple such plugins -->
+      <key>compose</key>
+      <boolean>true</boolean>
       <key>map-to</key>
-      <string>SkinFolder</string>
+      <string>LeapCommand</string>
     </map>
 
-    <key>autologin</key>
+    <key>logfile</key>
+    <map>
+      <key>count</key>
+      <integer>1</integer>
+      <key>map-to</key>
+      <string>UserLogFile</string>
+    </map>
+    
+    <key>login</key>
     <map>
       <key>desc</key>
-      <string>log in as last saved user</string>
+      <string>3 tokens: first, last and password</string>
+      <key>count</key>
+      <integer>3</integer>
       <key>map-to</key>
-      <string>AutoLogin</string>
+      <string>UserLoginInfo</string>
     </map>
 
-    <key>quitafter</key>
+    <key>loginpage</key>
     <map>
+      <key>desc</key>
+      <string>Login authentication page to use.</string>
       <key>count</key>
       <integer>1</integer>
       <key>map-to</key>
-      <string>QuitAfterSeconds</string>
+      <string>LoginPage</string>
     </map>
 
-    <key>logperformance</key>
+    <key>loginuri</key>
     <map>
       <key>desc</key>
-      <string>Log performance metrics for benchmarking</string>
+      <string>login server and CGI script to use</string>
+      <key>count</key>
+      <integer>1</integer>
+      <key>compose</key>
+      <boolean>true</boolean>
       <key>map-to</key>
-      <string>LogPerformance</string>
+      <string>CmdLineLoginURI</string>
     </map>
 
     <key>logmetrics</key>
@@ -123,29 +205,35 @@
       <key>map-to</key>
       <string>LogMetrics</string>
     </map>
-    
-    <key>analyzeperformance</key>
+
+    <key>logperformance</key>
     <map>
       <key>desc</key>
-      <string>When used in conjunction with logperformance, analyzes result of log against baseline.</string>
+      <string>Log performance metrics for benchmarking</string>
       <key>map-to</key>
-      <string>AnalyzePerformance</string>
+      <string>LogPerformance</string>
     </map>
 
-    <key>debugsession</key>
+    <key>multiple</key>		  
     <map>
       <key>desc</key>
-      <string>Run as if RenderDebugGL is TRUE, but log errors until end of session.</string>
+      <string>Allow multiple viewers.</string>
       <key>map-to</key>
-      <string>DebugSession</string>
+      <string>AllowMultipleViewers</string>
     </map>
 
-    <key>replaysession</key>
+    <key>noaudio</key>
+    <map>
+      <key>map-to</key>
+      <string>NoAudio</string>
+    </map>
+
+    <key>noinvlib</key>
     <map>
       <key>desc</key>
-      <string>After login, replay last recorded session and quit.</string>
+      <string>Do not request the inventory library.</string>
       <key>map-to</key>
-      <string>ReplaySession</string>
+      <string>NoInventoryLibrary</string>
     </map>
 
     <key>nonotifications</key>
@@ -156,22 +244,10 @@
       <string>IgnoreAllNotifications</string>      
     </map>    
 
-    <key>rotate</key>
-    <map>
-      <key>map-to</key>
-      <string>RotateRight</string>
-    </map>
-
-    <key>noaudio</key>
-    <map>
-      <key>map-to</key>
-      <string>NoAudio</string>
-    </map>
-
-    <key>nosound</key>
+    <key>nopreload</key>
     <map>
       <key>map-to</key>
-      <string>NoAudio</string>
+      <string>NoPreload</string>
     </map>
 
     <key>noprobe</key>
@@ -186,151 +262,134 @@
       <string>NoQuickTime</string>
     </map>
 
-    <key>nopreload</key>
+    <key>nosound</key>
     <map>
       <key>map-to</key>
-      <string>NoPreload</string>
+      <string>NoAudio</string>
     </map>
 
-    <key>purge</key>
+    <key>no-verify-ssl-cert</key>
     <map>
-      <key>desc</key>
-      <string>Delete files in the cache.</string>
       <key>map-to</key>
-      <string>PurgeCacheOnNextStartup</string>
+      <string>NoVerifySSLCert</string>
     </map>
 
-    <key>noinvlib</key>
+    <key>novoice</key>
     <map>
       <key>desc</key>
-      <string>Do not request the inventory library.</string>
+      <string>Disable voice.</string>
       <key>map-to</key>
-      <string>NoInventoryLibrary</string>
+      <string>CmdLineDisableVoice</string>
     </map>
 
-    <key>logfile</key>
+    <key>outbw</key>
     <map>
       <key>count</key>
       <integer>1</integer>
       <key>map-to</key>
-      <string>UserLogFile</string>
+      <string>OutBandwidth</string>
     </map>
 
-    <key>graphicslevel</key>
+    <key>port</key>
     <map>
-      <key>desc</key>
-      <string>Set the detail level. 
-0 - low, 1 - medium, 2 - high, 3 - ultra</string>
       <key>count</key>
       <integer>1</integer>
+      <key>map-to</key>
+      <string>UserConnectionPort</string>
     </map>
 
-    <key>setdefault</key>
+    <key>purge</key>
     <map>
       <key>desc</key>
-      <string>specify the value of a particular configuration variable which can be overridden by settings.xml.</string>
-      <key>count</key>
-      <integer>2</integer>
-      <!-- Special case. Mapped to settings procedurally. -->
+      <string>Delete files in the cache.</string>
+      <key>map-to</key>
+      <string>PurgeCacheOnNextStartup</string>
     </map>
 
-    <key>set</key>
+    <key>qa</key>
     <map>
       <key>desc</key>
-      <string>specify the value of a particular configuration variable that overrides all other settings.</string>
-      <key>count</key>
-      <integer>2</integer>
-      <key>compose</key>
-      <boolean>true</boolean>
-      <!-- Special case. Mapped to settings procedurally. -->
+      <string>Activated debugging menu in Advanced Settings.</string>
+      <key>map-to</key>
+      <string>QAMode</string>
     </map>
 
-    <key>settings</key>
+    <key>quitafter</key>
     <map>
-      <key>desc</key>
-      <string>Specify the filename of a configuration file.</string>
       <key>count</key>
       <integer>1</integer>
-      <!-- Special case. Mapped to settings procedurally. -->
+      <key>map-to</key>
+      <string>QuitAfterSeconds</string>
     </map>
-
-    <key>sessionsettings</key>
+    
+    <key>replaysession</key>
     <map>
       <key>desc</key>
-      <string>Specify the filename of a configuration file that contains temporary per-session configuration overrides.</string>
-      <key>count</key>
-      <integer>1</integer>
-      <!-- Special case. Mapped to settings procedurally. -->
+      <string>After login, replay last recorded session and quit.</string>
+      <key>map-to</key>
+      <string>ReplaySession</string>
     </map>
 
-    <key>usersessionsettings</key>
-    <map>
-      <key>desc</key>
-      <string>Specify the filename of a configuration file that contains temporary per-session configuration user overrides.</string>
-      <key>count</key>
-      <integer>1</integer>
-      <!-- Special case. Mapped to settings procedurally. -->
-    </map>
-    
-    <key>login</key>
+    <key>rotate</key>
     <map>
-      <key>desc</key>
-      <string>3 tokens: first, last and password</string>
-      <key>count</key>
-      <integer>3</integer>
       <key>map-to</key>
-      <string>UserLoginInfo</string>
+      <string>RotateRight</string>
     </map>
 
-    <key>god</key>
+    <key>safe</key>
     <map>
       <key>desc</key>
-      <string>Log in a god if you have god access.</string>
+      <string>Reset preferences, run in safe mode.</string>
       <key>map-to</key>
-      <string>ConnectAsGod</string>
+      <string>SafeMode</string>
     </map>
 
-    <key>console</key>
+    <key>sessionsettings</key>
     <map>
+      <key>desc</key>
+      <string>Specify the filename of a configuration file that contains temporary per-session configuration overrides.</string>
       <key>count</key>
       <integer>1</integer>
-      <key>map-to</key>
-      <string>ShowConsoleWindow</string>
+      <!-- Special case. Mapped to settings procedurally. -->
     </map>
 
-    <key>safe</key>
+    <key>set</key>
     <map>
       <key>desc</key>
-      <string>Reset preferences, run in safe mode.</string>
-      <key>map-to</key>
-      <string>SafeMode</string>
+      <string>specify the value of a particular configuration variable that overrides all other settings.</string>
+      <key>count</key>
+      <integer>2</integer>
+      <key>compose</key>
+      <boolean>true</boolean>
+      <!-- Special case. Mapped to settings procedurally. -->
     </map>
 
-    <key>multiple</key>		  
+    <key>setdefault</key>
     <map>
       <key>desc</key>
-      <string>Allow multiple viewers.</string>
-      <key>map-to</key>
-      <string>AllowMultipleViewers</string>
+      <string>specify the value of a particular configuration variable which can be overridden by settings.xml.</string>
+      <key>count</key>
+      <integer>2</integer>
+      <!-- Special case. Mapped to settings procedurally. -->
     </map>
 
-    <key>novoice</key>
+    <key>settings</key>
     <map>
       <key>desc</key>
-      <string>Disable voice.</string>
-      <key>map-to</key>
-      <string>CmdLineDisableVoice</string>
+      <string>Specify the filename of a configuration file.</string>
+      <key>count</key>
+      <integer>1</integer>
+      <!-- Special case. Mapped to settings procedurally. -->
     </map>
 
-    <key>url</key>
+    <key>skin</key>
     <map>
       <key>desc</key>
-      <string>Startup location</string>            
+      <string>ui/branding skin folder to use</string>
       <key>count</key>
       <integer>1</integer>
-      <key>last_option</key>
-      <boolean>true</boolean>
-      <!-- Special case. Not mapped to a setting. -->
+      <key>map-to</key>
+      <string>SkinFolder</string>
     </map>
 
     <key>slurl</key>
@@ -346,69 +405,24 @@
       <!-- Special case. Not mapped to a setting. -->
     </map>
 
-    <key>ignorepixeldepth</key>
-    <map>
-      <key>desc</key>
-      <string>Ignore pixel depth settings.</string>
-      <key>map-to</key>
-      <string>IgnorePixelDepth</string>
-    </map>
-
-    <key>cooperative</key>
+    <key>url</key>
     <map>
       <key>desc</key>
-      <string>Yield some idle time to local host.</string>
-      <key>count</key>
-      <integer>1</integer>
-      <key>map-to</key>
-      <string>YieldTime</string>
-    </map>
-
-    <key>no-verify-ssl-cert</key>
-    <map>
-      <key>map-to</key>
-      <string>NoVerifySSLCert</string>
-    </map>
-
-    <key>channel</key>
-    <map>
+      <string>Startup location</string>            
       <key>count</key>
       <integer>1</integer>
+      <key>last_option</key>
+      <boolean>true</boolean>
       <!-- Special case. Not mapped to a setting. -->
     </map>
 
-    <key>loginpage</key>
+    <key>usersessionsettings</key>
     <map>
       <key>desc</key>
-      <string>Login authentication page to use.</string>
+      <string>Specify the filename of a configuration file that contains temporary per-session configuration user overrides.</string>
       <key>count</key>
       <integer>1</integer>
-      <key>map-to</key>
-      <string>LoginPage</string>
-    </map>
-
-    <key>qa</key>
-    <map>
-      <key>desc</key>
-      <string>Activated debugging menu in Advanced Settings.</string>
-      <key>map-to</key>
-      <string>QAMode</string>
-    </map>
-
-    <key>crashonstartup</key>
-    <map>
-      <key>desc</key>
-      <string>Crashes on startup. For QA use.</string>
-      <key>map-to</key>
-      <string>CrashOnStartup</string>
-    </map>
-
-    <key>disablecrashlogger</key>
-    <map>
-      <key>desc</key>
-      <string>Disables the crash logger and lets the OS handle crashes</string>
-      <key>map-to</key>
-      <string>DisableCrashLogger</string>
+      <!-- Special case. Mapped to settings procedurally. -->
     </map>
   </map>
 </llsd>
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index ea00a0204d..e9dd405bc6 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -4579,6 +4579,17 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>LeapCommand</key>
+    <map>
+      <key>Comment</key>
+      <string>Zero or more command lines to run LLSD Event API Plugin programs.</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>LLSD</string>
+      <key>Value</key>
+      <array />
+    </map>
     <key>LSLFindCaseInsensitivity</key>
         <map>
         <key>Comment</key>
@@ -7142,7 +7153,7 @@
     <key>QAModeEventHostPort</key>
     <map>
       <key>Comment</key>
-      <string>Port on which lleventhost should listen</string>
+      <string>DEPRECATED: Port on which lleventhost should listen</string>
       <key>Persist</key>
       <integer>0</integer>
       <key>Type</key>
@@ -9079,6 +9090,28 @@
       <key>Value</key>
       <integer>1</integer>
     </map>
+  <key>RenderAutoMuteByteLimit</key>
+  <map>
+    <key>Comment</key>
+    <string>Maximum bytes of attachments before an avatar is automatically visually muted (0 for no limit).</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>U32</string>
+    <key>Value</key>
+    <integer>0</integer>
+  </map>
+  <key>RenderAutoMuteSurfaceAreaLimit</key>
+  <map>
+    <key>Comment</key>
+    <string>Maximum surface area of attachments before an avatar is automatically visually muted (0 for no limit).</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>F32</string>
+    <key>Value</key>
+    <integer>0</integer>
+  </map>
     <key>RenderUseShaderLOD</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
index 0170ad4b55..40b0cf47ac 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
@@ -61,17 +61,17 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -79,7 +79,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;	
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index 93b1a114db..8c96d55342 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -70,17 +70,17 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -88,7 +88,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;	
@@ -123,7 +123,6 @@ void main()
 	col.rgb += light_diffuse[7].rgb*calcPointLightOrSpotLight(pos.xyz, norm, light_position[7], light_direction[7], light_attenuation[7].x, light_attenuation[7].y, light_attenuation[7].z);
 	
 	vary_pointlight_col = col.rgb*diffuse_color.rgb;
-
 	col.rgb = vec3(0,0,0);
 
 	// Add windlight lights
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
index d7b90978ba..c0edddc40a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
@@ -65,17 +65,17 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -83,7 +83,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
index 5a3955ef00..83815b1786 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
@@ -63,21 +63,21 @@ uniform vec3 light_diffuse[8];
 
 float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float fa, float is_pointlight)
 {
-	//get light vector
+//get light vector
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -85,7 +85,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 9540ddd2e8..1660f9687e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -69,17 +69,17 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -87,7 +87,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index 9c7a332417..84c27edb26 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -66,17 +66,17 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	vec3 lv = lp.xyz-v;
 	
 	//get distance
-	float d = length(lv);
+	float d = dot(lv,lv);
 	
 	float da = 0.0;
 
 	if (d > 0.0 && la > 0.0 && fa > 0.0)
 	{
 		//normalize light vector
-		lv *= 1.0/d;
+		lv = normalize(lv);
 	
 		//distance attenuation
-		float dist2 = d*d/(la*la);
+		float dist2 = d/la;
 		da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
 
 		// spotlight coefficient.
@@ -84,7 +84,7 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 		da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 		//angular attenuation
-		da *= calcDirectionalLight(n, lv);
+		da *= max(dot(n, lv), 0.0);		
 	}
 
 	return da;