merge

13 files changed, 318 insertions, 192 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 93165cf5ed..cccf95c54c 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -7540,7 +7540,30 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
-    <key>SafeMode</key>
+  <key>MeshThreadCount</key>
+  <map>
+    <key>Comment</key>
+    <string>Number of threads to use for loading meshes.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>U32</string>
+    <key>Value</key>
+    <integer>8</integer>
+  </map>
+  <key>MeshMaxConcurrentRequests</key>
+  <map>
+    <key>Comment</key>
+    <string>Number of threads to use for loading meshes.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>U32</string>
+    <key>Value</key>
+    <integer>32</integer>
+  </map>
+
+  <key>SafeMode</key>
     <map>
       <key>Comment</key>
       <string>Reset preferences, run in safe mode.</string>
@@ -10134,7 +10157,7 @@
       <key>Type</key>
       <string>Boolean</string>
       <key>Value</key>
-      <integer>1</integer>
+      <integer>0</integer>
     </map>
     <key>SpeakerParticipantRemoveDelay</key>
     <map>
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index 1a7d58b07b..04e556c11a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -9,7 +9,7 @@ vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -41,23 +41,22 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_light = gl_LightSource[0].position.xyz;
 	
 	vary_ambient = col.rgb*gl_Color.rgb;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
index c1988d3c78..650fbcc3f5 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
@@ -10,7 +10,7 @@ mat4 getSkinnedTransform();
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -47,23 +47,22 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_ambient = col.rgb*gl_Color.rgb;
 	vary_directional = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
 	
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 28bcd720c0..2c8d90d1a6 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -5,7 +5,6 @@
  * $License$
  */
 
-
 #version 120
 
 #extension GL_ARB_texture_rectangle : enable
@@ -15,6 +14,7 @@ uniform sampler2DRect specularRect;
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
 uniform samplerCube environmentMap;
+uniform sampler2DRect lightMap;
 uniform sampler2D noiseMap;
 uniform sampler2D lightFunc;
 uniform sampler2D projectionMap;
@@ -26,12 +26,15 @@ uniform vec3 proj_n;
 uniform float proj_focus; //distance from plane to begin blurring
 uniform float proj_lod;  //(number of mips in proj map)
 uniform float proj_range; //range between near clip and far clip plane of projection
+uniform float proj_ambient_lod;
 uniform float proj_ambiance;
 uniform float near_clip;
 uniform float far_clip;
 
 uniform vec3 proj_origin; //origin of projection to be used for angular attenuation
 uniform float sun_wash;
+uniform int proj_shadow_idx;
+uniform float shadow_fade;
 
 varying vec4 vary_light;
 
@@ -40,6 +43,52 @@ uniform vec2 screen_res;
 
 uniform mat4 inv_proj;
 
+vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float det = max(1.0-lod/(proj_lod*0.5), 0.0);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0)+det, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = vec2(0.5) - abs(tc-vec2(0.5));
+	
+	float det = min(lod/(proj_lod*0.5), 1.0);
+	
+	float d = min(dist.x, dist.y);
+	
+	float edge = 0.25*det;
+		
+	ret *= clamp(d/edge, 0.0, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0);
+	
+	return ret;
+}
+
+
 vec4 getPosition(vec2 pos_screen)
 {
 	float depth = texture2DRect(depthMap, pos_screen.xy).a;
@@ -68,7 +117,7 @@ void main()
 	{
 		discard;
 	}
-	
+		
 	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
 	
 	norm = normalize(norm);
@@ -83,7 +132,11 @@ void main()
 	proj_tc.xyz /= proj_tc.w;
 	
 	float fa = gl_Color.a+1.0;
-	float dist_atten = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 0.0, 1.0);
+	float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0);
+	if (dist_atten <= 0.0)
+	{
+		discard;
+	}
 	
 	lv = proj_origin-pos.xyz;
 	lv = normalize(lv);
@@ -101,32 +154,32 @@ void main()
 		proj_tc.y > 0.0)
 	{
 		float lit = 0.0;
+		float amb_da = proj_ambiance;
+		
 		if (da > 0.0)
 		{
 			float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
 			float lod = diff * proj_lod;
 			
-			vec4 plcol = texture2DLod(projectionMap, proj_tc.xy, lod);
+			vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
 		
 			vec3 lcol = gl_Color.rgb * plcol.rgb * plcol.a;
 			
 			lit = da * dist_atten * noise;
 			
 			col = lcol*lit*diff_tex;
+			amb_da += (da*0.5)*proj_ambiance;
 		}
 		
-		float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-		float lod = diff * proj_lod;
-		vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, lod);
-		//float amb_da = mix(proj_ambiance, proj_ambiance*max(-da, 0.0), max(da, 0.0));
-		float amb_da = proj_ambiance;
-		
+		//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
+		vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod);
+							
 		amb_da += (da*da*0.5+0.5)*proj_ambiance;
-			
+				
 		amb_da *= dist_atten * noise;
-		
+			
 		amb_da = min(amb_da, 1.0-lit);
-		
+			
 		col += amb_da*gl_Color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a;
 	}
 	
@@ -144,35 +197,28 @@ void main()
 		{
 			vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds;
 			
-			vec3 stc = (proj_mat * vec4(pfinal.xyz, 1.0)).xyz;
+			vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0));
 
 			if (stc.z > 0.0)
 			{
-				stc.xy /= stc.z+proj_near;
-					
+				stc.xy /= stc.w;
+
+				float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0);
+				
+				stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5);
+								
 				if (stc.x < 1.0 &&
 					stc.y < 1.0 &&
 					stc.x > 0.0 &&
 					stc.y > 0.0)
 				{
-					vec4 scol = texture2DLod(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
+					vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
 					col += dist_atten*scol.rgb*gl_Color.rgb*scol.a*spec.rgb;
 				}
 			}
 		}
 	}
 	
-	/*if (spec.a > 0.0)
-	{
-		//vec3 ref = reflect(normalize(pos), norm);
-		float sa = dot(normalize(lv-normalize(pos)),norm);;
-		//sa = max(sa, 0.0);
-		//sa = pow(sa, 128.0 * spec.a*spec.a/dist_atten)*min(dist_atten*4.0, 1.0);
-		sa = texture2D(lightFunc, vec2(sa, spec.a)).a * min(dist_atten*4.0, 1.0);
-		sa *= noise;
-		col += da*sa*lcol*spec.rgb;
-	}*/
-	
 	gl_FragColor.rgb = col;	
 	gl_FragColor.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl
index 22bdd2c7f3..fafc2ae3cc 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl
@@ -53,51 +53,61 @@ vec4 getPosition(vec2 pos_screen)
 //calculate decreases in ambient lighting when crowded out (SSAO)
 float calcAmbientOcclusion(vec4 pos, vec3 norm)
 {
-	vec2 kern[8];
-	// exponentially (^2) distant occlusion samples spread around origin
-	kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
-	kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
-	kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
-	kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
-	kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
-	kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
-	kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
-	kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
-
-	vec2 pos_screen = vary_fragcoord.xy;
-	vec3 pos_world = pos.xyz;
-	vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
+	float ret = 1.0;
 	
-	float angle_hidden = 0.0;
-	int points = 0;
+	float dist = dot(pos.xyz,pos.xyz);
 	
-	float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
-	
-	// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
-	for (int i = 0; i < 8; i++)
+	if (dist < 64.0*64.0)
 	{
-		vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
-		vec3 samppos_world = getPosition(samppos_screen).xyz; 
+		vec2 kern[8];
+		// exponentially (^2) distant occlusion samples spread around origin
+		kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
+		kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
+		kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
+		kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
+		kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
+		kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
+		kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
+		kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
+
+		vec2 pos_screen = vary_fragcoord.xy;
+		vec3 pos_world = pos.xyz;
+		vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
 		
-		vec3 diff = pos_world - samppos_world;
-		float dist2 = dot(diff, diff);
+		float angle_hidden = 0.0;
+		int points = 0;
 		
-		// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
-		// --> solid angle shrinking by the square of distance
-		//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
-		//(k should vary inversely with # of samples, but this is taken care of later)
+		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
 		
-		//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
-		//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
-		angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+		// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
+		for (int i = 0; i < 8; i++)
+		{
+			vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
+			vec3 samppos_world = getPosition(samppos_screen).xyz; 
+			
+			vec3 diff = pos_world - samppos_world;
+			float dist2 = dot(diff, diff);
+			
+			// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
+			// --> solid angle shrinking by the square of distance
+			//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
+			//(k should vary inversely with # of samples, but this is taken care of later)
+			
+			//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
+			//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
+			angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+			
+			// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
+			points = points + int(diff.z > -1.0);
+		}
 		
-		// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
-		points = points + int(diff.z > -1.0);
+		angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
+		
+		ret = (1.0 - (float(points != 0) * angle_hidden));
+		ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0);
 	}
 	
-	angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-	
-	return (1.0 - (float(points != 0) * angle_hidden));
+	return min(ret, 1.0);
 }
 
 void main() 
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl
index 3e8fdfb3e4..da49e59b89 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl
@@ -12,7 +12,8 @@ float calcDirectionalLight(vec3 n, vec3 l)
 	return a;
 }
 
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la)
+
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight)
 {
 	//get light vector
 	vec3 lv = lp.xyz-v;
@@ -26,9 +27,13 @@ float calcPointLight(vec3 v, vec3 n, vec4 lp, float la)
 	//distance attenuation
 	float da = clamp(1.0/(la * d), 0.0, 1.0);
 	
+	// spotlight coefficient.
+	float spot = max(dot(-ln, lv), is_pointlight);
+	da *= spot*spot; // GL_SPOT_EXPONENT=2
+
 	//angular attenuation
 	da *= calcDirectionalLight(n, lv);
-	
+
 	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 5991e1f3b5..1fae8c4da3 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -9,7 +9,7 @@ vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -42,23 +42,21 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_light = gl_LightSource[0].position.xyz;
 	
 	vary_ambient = col.rgb*gl_Color.rgb;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index a939499b17..f8dd1b7431 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -10,7 +10,7 @@ mat4 getSkinnedTransform();
 void calcAtmospherics(vec3 inPositionEye);
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -53,23 +53,22 @@ void main()
 	calcAtmospherics(pos.xyz);
 
 	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-	vec4 col;
-	col.a = gl_Color.a;
-	
-	// Add windlight lights
-	col.rgb = atmosAmbient(vec3(0.));
-	col.rgb = scaleUpLight(col.rgb);
+
+	vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
 
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
 	
+	// Add windlight lights
+	col.rgb += atmosAmbient(vec3(0.));
+	
 	vary_ambient = col.rgb*gl_Color.rgb;
 	vary_directional = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
 	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 651959413c..3e29c684e8 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -43,6 +43,52 @@ uniform vec2 screen_res;
 
 uniform mat4 inv_proj;
 
+vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float det = max(1.0-lod/(proj_lod*0.5), 0.0);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0)+det, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = vec2(0.5) - abs(tc-vec2(0.5));
+	
+	float det = min(lod/(proj_lod*0.5), 1.0);
+	
+	float d = min(dist.x, dist.y);
+	
+	float edge = 0.25*det;
+		
+	ret *= clamp(d/edge, 0.0, 1.0);
+	
+	return ret;
+}
+
+vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod)
+{
+	vec4 ret = texture2DLod(projectionMap, tc, lod);
+	
+	vec2 dist = tc-vec2(0.5);
+	
+	float d = dot(dist,dist);
+		
+	ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0);
+	
+	return ret;
+}
+
+
 vec4 getPosition(vec2 pos_screen)
 {
 	float depth = texture2DRect(depthMap, pos_screen.xy).a;
@@ -126,7 +172,7 @@ void main()
 			float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0);
 			float lod = diff * proj_lod;
 			
-			vec4 plcol = texture2DLod(projectionMap, proj_tc.xy, lod);
+			vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod);
 		
 			vec3 lcol = gl_Color.rgb * plcol.rgb * plcol.a;
 			
@@ -137,7 +183,7 @@ void main()
 		}
 		
 		//float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0);
-		vec4 amb_plcol = texture2DLod(projectionMap, proj_tc.xy, proj_ambient_lod);
+		vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod);
 							
 		amb_da += (da*da*0.5+0.5)*proj_ambiance;
 				
@@ -167,13 +213,17 @@ void main()
 			if (stc.z > 0.0)
 			{
 				stc.xy /= stc.w;
-					
+
+				float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0);
+				
+				stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5);
+								
 				if (stc.x < 1.0 &&
 					stc.y < 1.0 &&
 					stc.x > 0.0 &&
 					stc.y > 0.0)
 				{
-					vec4 scol = texture2DLod(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
+					vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod);
 					col += dist_atten*scol.rgb*gl_Color.rgb*scol.a*spec.rgb*shadow;
 				}
 			}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index d6534083cf..6617e33c0d 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -179,17 +179,6 @@ void main()
 		}
 	}
 	
-	/*if (spec.a > 0.0)
-	{
-		//vec3 ref = reflect(normalize(pos), norm);
-		float sa = dot(normalize(lv-normalize(pos)),norm);;
-		//sa = max(sa, 0.0);
-		//sa = pow(sa, 128.0 * spec.a*spec.a/dist_atten)*min(dist_atten*4.0, 1.0);
-		sa = texture2D(lightFunc, vec2(sa, spec.a)).a * min(dist_atten*4.0, 1.0);
-		sa *= noise;
-		col += da*sa*lcol*spec.rgb;
-	}*/
-	
 	//attenuate point light contribution by SSAO component
 	col *= texture2DRect(lightMap, frag.xy).g;
 	
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index a0026edcd2..74a948f584 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -55,51 +55,61 @@ vec4 getPosition(vec2 pos_screen)
 //calculate decreases in ambient lighting when crowded out (SSAO)
 float calcAmbientOcclusion(vec4 pos, vec3 norm)
 {
-	vec2 kern[8];
-	// exponentially (^2) distant occlusion samples spread around origin
-	kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
-	kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
-	kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
-	kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
-	kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
-	kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
-	kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
-	kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
-
-	vec2 pos_screen = vary_fragcoord.xy;
-	vec3 pos_world = pos.xyz;
-	vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
-	
-	float angle_hidden = 0.0;
-	int points = 0;
+	float ret = 1.0;
 	
-	float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
+	float dist = dot(pos.xyz,pos.xyz);
 	
-	// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
-	for (int i = 0; i < 8; i++)
+	if (dist < 64.0*64.0)
 	{
-		vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
-		vec3 samppos_world = getPosition(samppos_screen).xyz; 
+		vec2 kern[8];
+		// exponentially (^2) distant occlusion samples spread around origin
+		kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
+		kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
+		kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
+		kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
+		kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
+		kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
+		kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
+		kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
+
+		vec2 pos_screen = vary_fragcoord.xy;
+		vec3 pos_world = pos.xyz;
+		vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
 		
-		vec3 diff = pos_world - samppos_world;
-		float dist2 = dot(diff, diff);
+		float angle_hidden = 0.0;
+		int points = 0;
 		
-		// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
-		// --> solid angle shrinking by the square of distance
-		//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
-		//(k should vary inversely with # of samples, but this is taken care of later)
+		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
 		
-		//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
-		//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
-		angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+		// it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
+		for (int i = 0; i < 8; i++)
+		{
+			vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect);
+			vec3 samppos_world = getPosition(samppos_screen).xyz; 
+			
+			vec3 diff = pos_world - samppos_world;
+			float dist2 = dot(diff, diff);
+			
+			// assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
+			// --> solid angle shrinking by the square of distance
+			//radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
+			//(k should vary inversely with # of samples, but this is taken care of later)
+			
+			//if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0)  // -0.05*norm to shift sample point back slightly for flat surfaces
+			//	angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional.  max of 1.0 (= ssao_factor_inv * ssao_factor)
+			angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
+			
+			// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
+			points = points + int(diff.z > -1.0);
+		}
 		
-		// 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion" 
-		points = points + int(diff.z > -1.0);
+		angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
+		
+		ret = (1.0 - (float(points != 0) * angle_hidden));
+		ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0);
 	}
 	
-	angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-	
-	return (1.0 - (float(points != 0) * angle_hidden));
+	return min(ret, 1.0);
 }
 
 float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
@@ -224,11 +234,11 @@ void main()
 	
 	//spotlight shadow 1
 	vec4 lpos = shadow_matrix[4]*spos;
-	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.1).x; 
+	gl_FragColor[2] = pcfShadow(shadowMap4, lpos, 0.8).x; 
 	
 	//spotlight shadow 2
 	lpos = shadow_matrix[5]*spos;
-	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.1).x; 
+	gl_FragColor[3] = pcfShadow(shadowMap5, lpos, 0.8).x; 
 
 	//gl_FragColor.rgb = pos.xyz;
 	//gl_FragColor.b = shadow;
diff --git a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
index f4c59734a4..19800d96dc 100644
--- a/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class2/lighting/sumLightsV.glsl
@@ -6,7 +6,7 @@
  */
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -18,9 +18,10 @@ vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 	
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
 	col.rgb += gl_LightSource[1].diffuse.rgb * calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
-	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
+
+	col.rgb += gl_LightSource[2].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	//col.rgb += gl_LightSource[4].diffuse.rgb * calcPointLightOrSpotLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
 	col.rgb = scaleDownLight(col.rgb);
 
 	// Add windlight lights
diff --git a/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl
index 1c5234c450..f129a1517b 100644
--- a/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class3/lighting/sumLightsV.glsl
@@ -6,7 +6,7 @@
  */
 
 float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLight(vec3 v, vec3 n, vec4 lp, float la);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
 
 vec3 atmosAmbient(vec3 light);
 vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -15,24 +15,21 @@ vec3 scaleUpLight(vec3 light);
 
 vec4 sumLights(vec3 pos, vec3 norm, vec4 color, vec4 baseLight)
 {
-	vec4 col;
-	col.a = color.a;
+	vec4 col = vec4(0.0, 0.0, 0.0, color.a);
 	
-	// Add windlight lights
-	col.rgb = atmosAffectDirectionalLight(calcDirectionalLight(norm, gl_LightSource[0].position.xyz));
-	col.rgb += atmosAmbient(baseLight.rgb);
-	col.rgb = scaleUpLight(col.rgb);
-
 	// Collect normal lights (need to be divided by two, as we later multiply by 2)
-	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[2].position, gl_LightSource[2].linearAttenuation);
-	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[3].position, gl_LightSource[3].linearAttenuation);
-	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[4].position, gl_LightSource[4].linearAttenuation);
-	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[5].position, gl_LightSource[5].linearAttenuation);
- 	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[6].position, gl_LightSource[6].linearAttenuation);
- 	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLight(pos, norm, gl_LightSource[7].position, gl_LightSource[7].linearAttenuation);
+	col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
+	col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
+	col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
+	col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
+	col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
+	col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
 	col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
 	col.rgb = scaleDownLight(col.rgb);
-				
+
+	// Add windlight lights
+	col.rgb += atmosAffectDirectionalLight(calcDirectionalLight(norm, gl_LightSource[0].position.xyz));
+	col.rgb += atmosAmbient(baseLight.rgb);
 
 	col.rgb = min(col.rgb*color.rgb, 1.0);