merge heads. whew.

23 files changed, 379 insertions, 329 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index 4fb109d687..fea2e16090 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -24,8 +24,6 @@ varying vec3 vary_fragcoord;
 varying vec3 vary_position;
 varying vec3 vary_light;
 
-uniform float alpha_soften;
-
 uniform mat4 inv_proj;
 
 vec4 getPosition(vec2 pos_screen)
@@ -57,15 +55,6 @@ void main()
 
 	color.rgb = scaleSoftClip(color.rgb);
 
-	if (samp_pos.z != 0.0 && gl_Color.a < 1.0)
-	{
-		float dist_factor = alpha_soften;
-		float a = gl_Color.a;
-		a *= a;
-		dist_factor *= 1.0/(1.0-a);
-		color.a *= min((pos.z-samp_pos.z)*dist_factor, 1.0);
-	}
-	
 	//gl_FragColor = gl_Color;
 	gl_FragColor = color;
 	//gl_FragColor = vec4(1,0,1,1);
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/avatarF.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarF.glsl
index 75df388941..afbe08a579 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarF.glsl
@@ -20,6 +20,7 @@ void main()
 	
 	gl_FragData[0] = vec4(diff.rgb, 0.0);
 	gl_FragData[1] = vec4(0,0,0,0);
-	gl_FragData[2] = vec4(normalize(vary_normal)*0.5+0.5, 0.0);
+	vec3 nvn = normalize(vary_normal);
+	gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0);
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
index 00083eb6b3..085ffddeec 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
@@ -10,7 +10,7 @@ uniform sampler2D diffuseMap;
 
 void main() 
 {
-	gl_FragColor = vec4(1,1,1,gl_Color.a * texture2D(diffuseMap, gl_TexCoord[0].xy).a);
-	//gl_FragColor = vec4(1,1,1,1);
+	//gl_FragColor = vec4(1,1,1,gl_Color.a * texture2D(diffuseMap, gl_TexCoord[0].xy).a);
+	gl_FragColor = vec4(1,1,1,1);
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
index bd5e9dd758..d1c5d7cb19 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
@@ -10,13 +10,11 @@
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
 uniform sampler2DRect lightMap;
-uniform sampler2DRect giLightMap;
 
 uniform float dist_factor;
 uniform float blur_size;
 uniform vec2 delta;
-uniform vec3 kern[32];
-uniform int kern_length;
+uniform vec3 kern[4];
 uniform float kern_scale;
 
 varying vec2 vary_fragcoord;
@@ -39,7 +37,8 @@ vec4 getPosition(vec2 pos_screen)
 
 void main() 
 {
-	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	vec3 pos = getPosition(vary_fragcoord.xy).xyz;
 	vec4 ccol = texture2DRect(lightMap, vary_fragcoord.xy).rgba;
 	
@@ -50,7 +49,7 @@ void main()
 	vec2 defined_weight = kern[0].xy; // special case the first (centre) sample's weight in the blur; we have to sample it anyway so we get it for 'free'
 	vec4 col = defined_weight.xyxx * ccol;
 	
-	for (int i = 1; i < kern_length; i++)
+	for (int i = 1; i < 4; i++)
 	{
 		vec2 tc = vary_fragcoord.xy + kern[i].z*dlt;
 	        vec3 samppos = getPosition(tc).xyz; 
@@ -61,12 +60,22 @@ void main()
 			defined_weight += kern[i].xy;
 		}
 	}
+	for (int i = 1; i < 4; i++)
+	{
+		vec2 tc = vary_fragcoord.xy - kern[i].z*dlt;
+	        vec3 samppos = getPosition(tc).xyz; 
+		float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane
+		if (d*d <= 0.003)
+		{
+			col += texture2DRect(lightMap, tc)*kern[i].xyxx;
+			defined_weight += kern[i].xy;
+		}
+	}
 
 
 
 	col /= defined_weight.xyxx;
 	
 	gl_FragColor = col;
-	
-	//gl_FragColor = ccol;
 }
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/bumpF.glsl b/indra/newview/app_settings/shaders/class1/deferred/bumpF.glsl
index 1c29dae5f7..2197744a37 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/bumpF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/bumpF.glsl
@@ -14,14 +14,16 @@ varying vec3 vary_mat2;
 
 void main() 
 {
-	vec3 col = texture2D(diffuseMap, gl_TexCoord[0].xy).rgb;
+	vec3 col = gl_Color.rgb * texture2D(diffuseMap, gl_TexCoord[0].xy).rgb;
 	vec3 norm = texture2D(bumpMap, gl_TexCoord[0].xy).rgb * 2.0 - 1.0;
 
 	vec3 tnorm = vec3(dot(norm,vary_mat0),
-					  dot(norm,vary_mat1),
-					  dot(norm,vary_mat2));
+			  dot(norm,vary_mat1),
+			  dot(norm,vary_mat2));
 						
-	gl_FragData[0] = vec4(gl_Color.rgb*col, 0.0);
-	gl_FragData[1] = vec4(col*gl_Color.a, gl_Color.a);
-	gl_FragData[2] = vec4(normalize(tnorm)*0.5+0.5, 0.0);
+	gl_FragData[0] = vec4(col, 0.0);
+	gl_FragData[1] = gl_Color.aaaa; // spec
+	//gl_FragData[1] = vec4(vec3(gl_Color.a), gl_Color.a+(1.0-gl_Color.a)*gl_Color.a); // spec - from former class3 - maybe better, but not so well tested
+	vec3 nvn = normalize(tnorm);
+	gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/diffuseF.glsl b/indra/newview/app_settings/shaders/class1/deferred/diffuseF.glsl
index 5895ebda84..3803119cda 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/diffuseF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/diffuseF.glsl
@@ -11,8 +11,10 @@ varying vec3 vary_normal;
 
 void main() 
 {
-	vec3 col = texture2D(diffuseMap, gl_TexCoord[0].xy).rgb;
-	gl_FragData[0] = vec4(gl_Color.rgb*col, 0.0);
-	gl_FragData[1] = vec4(col*(gl_Color.a*1.5), gl_Color.a);
-	gl_FragData[2] = vec4(normalize(vary_normal)*0.5+0.5, 0.0);
+	vec3 col = gl_Color.rgb * texture2D(diffuseMap, gl_TexCoord[0].xy).rgb;
+	gl_FragData[0] = vec4(col, 0.0);
+	gl_FragData[1] = gl_Color.aaaa; // spec
+	//gl_FragData[1] = vec4(vec3(gl_Color.a), gl_Color.a+(1.0-gl_Color.a)*gl_Color.a); // spec - from former class3 - maybe better, but not so well tested
+	vec3 nvn = normalize(vary_normal);
+	gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
index e518bddb98..0db9586a88 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
@@ -23,8 +23,6 @@ varying vec4 vary_position;
 varying vec3 vary_normal;
 varying vec3 vary_fragcoord;
 
-uniform float alpha_soften;
-
 uniform mat4 inv_proj;
 
 vec4 getPosition(vec2 pos_screen)
@@ -56,15 +54,6 @@ void main()
 
 	color.rgb = fullbrightScaleSoftClip(color.rgb);
 
-	if (samp_pos.z != 0.0 && color.a < 1.0)
-	{
-		float dist_factor = alpha_soften;
-		float a = color.a;
-		a *= a;
-		dist_factor *= 1.0/(1.0-a);
-		color.a *= min((pos.z-samp_pos.z)*dist_factor, 1.0);
-	}
-
 	//gl_FragColor = gl_Color;
 	gl_FragColor = color;
 	//gl_FragColor = vec4(1,0,1,1);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/giF.glsl b/indra/newview/app_settings/shaders/class1/deferred/giF.glsl
index b351eec6e5..d4b153c4af 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/giF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/giF.glsl
@@ -159,7 +159,8 @@ void main()
 {
 	vec2 pos_screen = vary_fragcoord.xy;
 	vec4 pos = getPosition(pos_screen);
-	vec3 norm = texture2DRect(normalMap, pos_screen).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, pos_screen).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	
 	gl_FragData[0].xyz = giAmbient(pos, norm);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
index 8c140a7b4f..508bbf415e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
@@ -11,7 +11,8 @@ uniform sampler2D specularMap;
 
 void main() 
 {
-	gl_FragData[0] = texture2D(diffuseMap, gl_TexCoord[0].xy);
+	vec4 col = texture2D(diffuseMap, gl_TexCoord[0].xy);
+	gl_FragData[0] = vec4(col.rgb, col.a <= 0.5 ? 0.0 : 0.005);
 	gl_FragData[1] = texture2D(specularMap, gl_TexCoord[0].xy);
 	gl_FragData[2] = vec4(texture2D(normalMap, gl_TexCoord[0].xy).xyz, 0.0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
index 797b9e9f3b..b494b521ca 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl
@@ -53,7 +53,9 @@ void main()
 		discard;
 	}
 	
-	vec3 norm = normalize(texture2DRect(normalMap, frag.xy).xyz*2.0-1.0);
+	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
+	norm = normalize(norm);
 	vec4 spec = texture2DRect(specularRect, frag.xy);
 	vec3 diff = texture2DRect(diffuseRect, frag.xy).rgb;
 	float noise = texture2D(noiseMap, frag.xy/128.0).b;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
index 28bcd720c0..82e9450e68 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl
@@ -5,9 +5,10 @@
  * $License$
  */
 
-
 #version 120
 
+//class 1 -- no shadows
+
 #extension GL_ARB_texture_rectangle : enable
 
 uniform sampler2DRect diffuseRect;
@@ -26,12 +27,15 @@ 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 +44,52 @@ 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 +118,7 @@ void main()
 	{
 		discard;
 	}
-	
+		
 	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
 	
 	norm = normalize(norm);
@@ -83,7 +133,11 @@ 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 +155,32 @@ 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 +198,28 @@ 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/pointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
index 78256e20cc..3aecbc5f23 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl
@@ -55,7 +55,8 @@ void main()
 		discard;
 	}
 	
-	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	float da = dot(norm, lv);
 	if (da < 0.0)
 	{
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postgiF.glsl b/indra/newview/app_settings/shaders/class1/deferred/postgiF.glsl
index 9612aee405..bd554c2d84 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postgiF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postgiF.glsl
@@ -38,10 +38,10 @@ vec4 getPosition(vec2 pos_screen)
 
 void main() 
 {
-	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	vec3 pos = getPosition(vary_fragcoord.xy).xyz;
 	
-	
 	vec3 ccol = texture2DRect(giLightMap, vary_fragcoord.xy).rgb;
 	vec2 dlt = kern_scale * delta/(1.0+norm.xy*norm.xy);
 	dlt /= max(-pos.z*dist_factor, 1.0);
@@ -51,9 +51,10 @@ void main()
 	for (int i = 0; i < kern_length; i++)
 	{
 		vec2 tc = vary_fragcoord.xy + kern[i].y*dlt;
-	    vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz*2.0-1.0;
+		vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz;
+		sampNorm = vec3((sampNorm.xy-0.5)*2.0,sampNorm.z); // unpack norm
 	    
-	    float d = dot(norm.xyz, sampNorm);
+		float d = dot(norm.xyz, sampNorm);
 		
 		if (d > 0.8)
 		{
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
index b4b0d0ce9d..bef91e735d 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl
@@ -11,6 +11,7 @@ uniform sampler2DRect diffuseRect;
 uniform sampler2DRect specularRect;
 uniform sampler2DRect positionMap;
 uniform sampler2DRect normalMap;
+uniform sampler2DRect lightMap;
 uniform sampler2DRect depthMap;
 uniform sampler2D	  noiseMap;
 uniform samplerCube environmentMap;
@@ -40,7 +41,7 @@ uniform float scene_light_strength;
 uniform vec3 env_mat[3];
 //uniform mat4 shadow_matrix[3];
 //uniform vec4 shadow_clip;
-//uniform mat3 ssao_effect_mat;
+uniform mat3 ssao_effect_mat;
 
 varying vec4 vary_light;
 varying vec2 vary_fragcoord;
@@ -55,9 +56,8 @@ vec3 vary_AtmosAttenuation;
 uniform mat4 inv_proj;
 uniform vec2 screen_res;
 
-vec4 getPosition(vec2 pos_screen)
-{ //get position in screen space (world units) given window coordinate and depth map
-	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+vec4 getPosition_d(vec2 pos_screen, float depth)
+{
 	vec2 sc = pos_screen.xy*2.0;
 	sc /= screen_res;
 	sc -= vec2(1.0,1.0);
@@ -68,6 +68,12 @@ vec4 getPosition(vec2 pos_screen)
 	return pos;
 }
 
+vec4 getPosition(vec2 pos_screen)
+{ //get position in screen space (world units) given window coordinate and depth map
+	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+	return getPosition_d(pos_screen, depth);
+}
+
 vec3 getPositionEye()
 {
 	return vary_PositionEye;
@@ -178,7 +184,17 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
 	temp2.x += .25;
 	
 	//increase ambient when there are more clouds
-	vec4 tmpAmbient = ambient + (vec4(1.) - ambient) * cloud_shadow.x * 0.5;	
+	vec4 tmpAmbient = ambient + (vec4(1.) - ambient) * cloud_shadow.x * 0.5;
+	
+	/*  decrease value and saturation (that in HSV, not HSL) for occluded areas
+	 * // for HSV color/geometry used here, see http://gimp-savvy.com/BOOK/index.html?node52.html
+	 * // The following line of code performs the equivalent of:
+	 * float ambAlpha = tmpAmbient.a;
+	 * float ambValue = dot(vec3(tmpAmbient), vec3(0.577)); // projection onto <1/rt(3), 1/rt(3), 1/rt(3)>, the neutral white-black axis
+	 * vec3 ambHueSat = vec3(tmpAmbient) - vec3(ambValue);
+	 * tmpAmbient = vec4(RenderSSAOEffect.valueFactor * vec3(ambValue) + RenderSSAOEffect.saturationFactor *(1.0 - ambFactor) * ambHueSat, ambAlpha);
+	 */
+	tmpAmbient = vec4(mix(ssao_effect_mat * tmpAmbient.rgb, tmpAmbient.rgb, ambFactor), tmpAmbient.a);
 
 	//haze color
 	setAdditiveColor(
@@ -241,8 +257,10 @@ vec3 scaleSoftClip(vec3 light)
 void main() 
 {
 	vec2 tc = vary_fragcoord.xy;
-	vec3 pos = getPosition(tc).xyz;
-	vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0;
+	float depth = texture2DRect(depthMap, tc.xy).a;
+	vec3 pos = getPosition_d(tc, depth).xyz;
+	vec3 norm = texture2DRect(normalMap, tc).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	//vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz;
 	
 	float da = max(dot(norm.xyz, vary_light.xyz), 0.0);
@@ -250,23 +268,76 @@ void main()
 	vec4 diffuse = texture2DRect(diffuseRect, tc);
 	vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
 	
-	calcAtmospherics(pos.xyz, 0.0);
+	vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
+	float scol = max(scol_ambocc.r, diffuse.a); 
+	float ambocc = scol_ambocc.g;
+	
+	calcAtmospherics(pos.xyz, ambocc);
 	
 	vec3 col = atmosAmbient(vec3(0));
-	col += atmosAffectDirectionalLight(clamp(da, diffuse.a, 1.0));
+	col += atmosAffectDirectionalLight(max(min(da, scol), diffuse.a));
 	
 	col *= diffuse.rgb;
 	
-	if (spec.a > 0.0)
+	if (spec.a > 0.0) // specular reflection
 	{
-		vec3 ref = normalize(reflect(pos.xyz, norm.xyz));
-		float sa = dot(ref, vary_light.xyz);
-		col.rgb += vary_SunlitColor*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a;
+		// the old infinite-sky shiny reflection
+		//
+		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+		float sa = dot(refnormpersp, vary_light.xyz);
+		vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*texture2D(lightFunc, vec2(sa, spec.a)).a;
+
+		/*
+		// screen-space cheap fakey reflection map
+		//
+		vec3 refnorm = normalize(reflect(vec3(0,0,-1), norm.xyz));
+		depth -= 0.5; // unbias depth
+		// first figure out where we'll make our 2D guess from
+		vec2 ref2d = (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth;
+		// Offset the guess source a little according to a trivial
+		// checkerboard dither function and spec.a.
+		// This is meant to be similar to sampling a blurred version
+		// of the diffuse map.  LOD would be better in that regard.
+		// The goal of the blur is to soften reflections in surfaces
+		// with low shinyness, and also to disguise our lameness.
+		float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0
+		float checkoffset = (3.0 + (7.0*(1.0-spec.a)))*(checkerboard-0.5);
+		ref2d += vec2(checkoffset, checkoffset);
+		ref2d += tc.xy; // use as offset from destination
+		// Get attributes from the 2D guess point.
+		// We average two samples of diffuse (not of anything else) per
+		// pixel to try to reduce aliasing some more.
+		vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d + vec2(0.0, -checkoffset)).rgb +
+				     texture2DRect(diffuseRect, ref2d + vec2(-checkoffset, 0.0)).rgb);
+		float refdepth = texture2DRect(depthMap, ref2d).a;
+		vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
+		vec3 refn = texture2DRect(normalMap, ref2d).rgb;
+		refn = normalize(vec3((refn.xy-0.5)*2.0,refn.z)); // unpack norm
+		// figure out how appropriate our guess actually was
+		float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos)));
+		// darken reflections from points which face away from the reflected ray - our guess was a back-face
+		//refapprop *= step(dot(refnorm, refn), 0.0);
+		refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant
+		// get appropriate light strength for guess-point.
+		// reflect light direction to increase the illusion that
+		// these are reflections.
+		vec3 reflight = reflect(lightnorm.xyz, norm.xyz);
+		float reflit = max(dot(refn, reflight.xyz), 0.0);
+		// apply sun color to guess-point, dampen according to inappropriateness of guess
+		float refmod = min(refapprop, reflit);
+		vec3 refprod = vary_SunlitColor * refcol.rgb * refmod;
+		vec3 ssshiny = (refprod * spec.a);
+		ssshiny *= 0.3; // dampen it even more
+		*/
+		vec3 ssshiny = vec3(0,0,0);
+
+		// add the two types of shiny together
+		col += (ssshiny + dumbshiny) * spec.rgb;
 	}
 	
 	col = atmosLighting(col);
 	col = scaleSoftClip(col);
-	
+		
 	gl_FragColor.rgb = col;
 	gl_FragColor.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
index 2a7234fd83..1b95b253c3 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/spotLightF.glsl
@@ -68,7 +68,8 @@ void main()
 		discard;
 	}
 	
-	vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+	vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
 	
 	norm = normalize(norm);
 	float l_dist = -dot(lv, proj_n);
@@ -161,17 +162,6 @@ 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;
-	}*/
-	
 	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..56e4055c02 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/sunLightF.glsl
@@ -5,196 +5,11 @@
  * $License$
  */
 
-#extension GL_ARB_texture_rectangle : enable
-
-uniform sampler2DRect depthMap;
-uniform sampler2DRect normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
-uniform sampler2DRectShadow shadowMap4;
-uniform sampler2DRectShadow shadowMap5;
-uniform sampler2D noiseMap;
-
-uniform sampler2D		lightFunc;
-
-
-// Inputs
-uniform mat4 shadow_matrix[6];
-uniform vec4 shadow_clip;
-uniform float ssao_radius;
-uniform float ssao_max_radius;
-uniform float ssao_factor;
-uniform float ssao_factor_inv;
-
-varying vec2 vary_fragcoord;
-varying vec4 vary_light;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
-uniform float shadow_bias;
-uniform float shadow_offset;
-
-vec4 getPosition(vec2 pos_screen)
-{
-	float depth = texture2DRect(depthMap, pos_screen.xy).a;
-	vec2 sc = pos_screen.xy*2.0;
-	sc /= screen_res;
-	sc -= vec2(1.0,1.0);
-	vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
-	vec4 pos = inv_proj * ndc;
-	pos /= pos.w;
-	pos.w = 1.0;
-	return pos;
-}
+//class 1, no shadow, no SSAO, should never be called
 
-//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 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++)
-	{
-		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);
-	}
-	
-	angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-	
-	return (1.0 - (float(points != 0) * angle_hidden));
-}
+#extension GL_ARB_texture_rectangle : enable
 
 void main() 
 {
-	vec2 pos_screen = vary_fragcoord.xy;
-	
-	//try doing an unproject here
-	
-	vec4 pos = getPosition(pos_screen);
-	
-    vec3 norm = texture2DRect(normalMap, pos_screen).xyz*2.0-1.0;
-	
-	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
-	{
-		gl_FragColor = vec4(0.0); // doesn't matter
-		return;
-	}*/
-	
-	float shadow = 1.0;
-    float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
-
-	vec4 spos = vec4(pos.xyz + norm.xyz * (-pos.z/64.0*shadow_offset+shadow_bias), 1.0);
-	
-	//vec3 debug = vec3(0,0,0);
-	
-	if (dp_directional_light == 0.0)
-	{
-		// if we know this point is facing away from the sun then we know it's in shadow without having to do a squirrelly shadow-map lookup
-		shadow = 0.0;
-	}
-	else if (spos.z > -shadow_clip.w)
-	{	
-		vec4 lpos;
-		
-		if (spos.z < -shadow_clip.z)
-		{
-			lpos = shadow_matrix[3]*spos;
-			lpos.xy *= screen_res;
-			shadow = shadow2DRectProj(shadowMap3, lpos).x;
-			shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
-		}
-		else if (spos.z < -shadow_clip.y)
-		{
-			lpos = shadow_matrix[2]*spos;
-			lpos.xy *= screen_res;
-			shadow = shadow2DRectProj(shadowMap2, lpos).x;
-		}
-		else if (spos.z < -shadow_clip.x)
-		{
-			lpos = shadow_matrix[1]*spos;
-			lpos.xy *= screen_res;
-			shadow = shadow2DRectProj(shadowMap1, lpos).x;
-		}
-		else
-		{
-			lpos = shadow_matrix[0]*spos;
-			lpos.xy *= screen_res;
-			shadow = shadow2DRectProj(shadowMap0, lpos).x;
-		}
-
-		// take the most-shadowed value out of these two:
-		//  * the blurred sun shadow in the light (shadow) map
-		//  * an unblurred dot product between the sun and this norm
-		// the goal is to err on the side of most-shadow to fill-in shadow holes and reduce artifacting
-		shadow = min(shadow, dp_directional_light);
-		
-		/*debug.r = lpos.y / (lpos.w*screen_res.y);
-		
-		lpos.xy /= lpos.w*32.0;
-		if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1)
-		{
-			debug.gb = vec2(0.5, 0.5);
-		}
-		
-		debug += (1.0-shadow)*0.5;*/
-		
-	}
-	else
-	{
-		// more distant than the shadow map covers - just use directional shading as shadow
-		shadow = dp_directional_light;
-	}
-	
-	gl_FragColor[0] = shadow;
-	gl_FragColor[1] = calcAmbientOcclusion(pos, norm);
-	
-	//spotlight shadow 1
-	vec4 lpos = shadow_matrix[4]*spos;
-	lpos.xy *= screen_res;
-	gl_FragColor[2] = shadow2DRectProj(shadowMap4, lpos).x; 
-	
-	//spotlight shadow 2
-	lpos = shadow_matrix[5]*spos;
-	lpos.xy *= screen_res;
-	gl_FragColor[3] = shadow2DRectProj(shadowMap5, lpos).x; 
-
-	//gl_FragColor.rgb = pos.xyz;
-	//gl_FragColor.b = shadow;
-	//gl_FragColor.rgb = debug;
+	gl_FragColor = vec4(0,0,0,0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl
new file mode 100644
index 0000000000..cdbed4b791
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl
@@ -0,0 +1,124 @@
+/** 
+ * @file sunLightSSAOF.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#extension GL_ARB_texture_rectangle : enable
+
+//class 1 -- no shadow, SSAO only
+
+uniform sampler2DRect depthMap;
+uniform sampler2DRect normalMap;
+uniform sampler2D noiseMap;
+
+uniform sampler2D		lightFunc;
+
+
+// Inputs
+uniform mat4 shadow_matrix[6];
+uniform vec4 shadow_clip;
+uniform float ssao_radius;
+uniform float ssao_max_radius;
+uniform float ssao_factor;
+uniform float ssao_factor_inv;
+
+varying vec2 vary_fragcoord;
+varying vec4 vary_light;
+
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+uniform float shadow_bias;
+uniform float shadow_offset;
+
+vec4 getPosition(vec2 pos_screen)
+{
+	float depth = texture2DRect(depthMap, pos_screen.xy).a;
+	vec2 sc = pos_screen.xy*2.0;
+	sc /= screen_res;
+	sc -= vec2(1.0,1.0);
+	vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
+	vec4 pos = inv_proj * ndc;
+	pos /= pos.w;
+	pos.w = 1.0;
+	return pos;
+}
+
+//calculate decreases in ambient lighting when crowded out (SSAO)
+float calcAmbientOcclusion(vec4 pos, vec3 norm)
+{
+	float ret = 1.0;
+	
+	float dist = dot(pos.xyz,pos.xyz);
+	
+	if (dist < 64.0*64.0)
+	{
+		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 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++)
+		{
+			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);
+		}
+		
+		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);
+	}
+	
+	return min(ret, 1.0);
+}
+
+void main() 
+{
+	vec2 pos_screen = vary_fragcoord.xy;
+	
+	//try doing an unproject here
+	
+	vec4 pos = getPosition(pos_screen);
+	
+	vec3 norm = texture2DRect(normalMap, pos_screen).xyz;
+	norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
+		
+	gl_FragColor[0] = 1.0;
+	gl_FragColor[1] = calcAmbientOcclusion(pos, norm);
+	gl_FragColor[2] = 1.0; 
+	gl_FragColor[3] = 1.0;
+}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
index 3cccfb7202..fa0a60c98d 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/terrainF.glsl
@@ -29,6 +29,7 @@ void main()
 	
 	gl_FragData[0] = vec4(outColor.rgb, 0.0);
 	gl_FragData[1] = vec4(outColor.rgb*0.2, 0.2);
-	gl_FragData[2] = vec4(normalize(vary_normal)*0.5+0.5, 0.0);
+	vec3 nvn = normalize(vary_normal);
+	gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0);
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/treeF.glsl b/indra/newview/app_settings/shaders/class1/deferred/treeF.glsl
index 258acee08c..5b33ea5bfe 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/treeF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/treeF.glsl
@@ -14,5 +14,6 @@ void main()
 	vec4 col = texture2D(diffuseMap, gl_TexCoord[0].xy);
 	gl_FragData[0] = vec4(gl_Color.rgb*col.rgb, col.a <= 0.5 ? 0.0 : 0.005);
 	gl_FragData[1] = vec4(0,0,0,0);
-	gl_FragData[2] = vec4(normalize(vary_normal)*0.5+0.5, 0.0);
+	vec3 nvn = normalize(vary_normal);
+	gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
index d21575119d..361ae8dc84 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/waterF.glsl
@@ -115,7 +115,7 @@ void main()
 	vec4 fb = texture2D(screenTex, distort2);
 	
 	//mix with reflection
-	// Note we actually want to use just df1, but multiplying by 0.999999 gets around and nvidia compiler bug
+	// Note we actually want to use just df1, but multiplying by 0.999999 gets around an nvidia compiler bug
 	color.rgb = mix(fb.rgb, refcol.rgb, df1 * 0.99999);
 	
 	float shadow = 1.0;
@@ -131,11 +131,11 @@ void main()
 	//color.rgb = scaleSoftClip(color.rgb);
 	//color.a = spec * sunAngle2;
 
-	//wavef.z = -0.25f;
-	wavef = normalize(wavef);
-	wavef = (norm_mat*vec4(wavef, 1.0)).xyz;
+	//wavef.z *= 0.1f;
+	//wavef = normalize(wavef);
+	vec3 screenspacewavef = (norm_mat*vec4(wavef, 1.0)).xyz;
 	
-	gl_FragData[0] = vec4(color.rgb, 0.75);
-	gl_FragData[1] = vec4(1,1,1, 0.8);
-	gl_FragData[2] = vec4(wavef*0.5+0.5, 0.0);
+	gl_FragData[0] = vec4(color.rgb, 0.5); // diffuse
+	gl_FragData[1] = vec4(0.5,0.5,0.5, 0.95); // speccolor*spec, spec
+	gl_FragData[2] = vec4(screenspacewavef.xy*0.5+0.5, screenspacewavef.z, screenspacewavef.z*0.5); // normalxyz, displace
 }
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;	
 }