merge

17 files changed, 146 insertions, 224 deletions

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
index e2d7cd94da..1dd29bfc70 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
@@ -12,7 +14,6 @@ uniform sampler2DRectShadow shadowMap0;
 uniform sampler2DRectShadow shadowMap1;
 uniform sampler2DRectShadow shadowMap2;
 uniform sampler2DRectShadow shadowMap3;
-uniform sampler2D noiseMap;
 uniform sampler2DRect depthMap;
 
 uniform mat4 shadow_matrix[6];
@@ -68,8 +69,6 @@ void main()
 	vec2 frag = vary_fragcoord.xy/vary_fragcoord.z*0.5+0.5;
 	frag *= screen_res;
 	
-	vec3 samp_pos = getPosition(frag).xyz;
-	
 	float shadow = 1.0;
 	vec4 pos = vec4(vary_position, 1.0);
 	
@@ -115,7 +114,7 @@ void main()
 
 	//gl_FragColor = gl_Color;
 	gl_FragColor = color;
-	//gl_FragColor = vec4(1,0,1,1)*shadow;
+	//gl_FragColor = vec4(1,shadow,1,1);
 	
 }
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
new file mode 100644
index 0000000000..1da3d95069
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
@@ -0,0 +1,86 @@
+/** 
+ * @file alphaSkinnedV.glsl
+ *
+ * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+ 
+#version 120
+
+vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
+void calcAtmospherics(vec3 inPositionEye);
+
+float calcDirectionalLight(vec3 n, vec3 l);
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
+mat4 getObjectSkinnedTransform();
+vec3 atmosAmbient(vec3 light);
+vec3 atmosAffectDirectionalLight(float lightIntensity);
+vec3 scaleDownLight(vec3 light);
+vec3 scaleUpLight(vec3 light);
+
+varying vec3 vary_ambient;
+varying vec3 vary_directional;
+varying vec3 vary_fragcoord;
+varying vec3 vary_position;
+varying vec3 vary_light;
+
+uniform float near_clip;
+uniform float shadow_offset;
+uniform float shadow_bias;
+
+void main()
+{
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = gl_ModelViewMatrix * mat;
+	
+	vec3 pos = (mat*gl_Vertex).xyz;
+	
+	gl_Position = gl_ProjectionMatrix * vec4(pos, 1.0);
+	
+	vec4 n = gl_Vertex;
+	n.xyz += gl_Normal.xyz;
+	n.xyz = (mat*n).xyz;
+	n.xyz = normalize(n.xyz-pos.xyz);
+	
+	vec3 norm = n.xyz;
+	
+	float dp_directional_light = max(0.0, dot(norm, gl_LightSource[0].position.xyz));
+	vary_position = pos.xyz + gl_LightSource[0].position.xyz * (1.0-dp_directional_light)*shadow_offset;
+			
+	calcAtmospherics(pos.xyz);
+
+	//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
+	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*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;
+	vary_directional.rgb = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
+	
+	col.rgb = min(col.rgb*gl_Color.rgb, 1.0);
+	
+	gl_FrontColor = col;
+
+	gl_FogFragCoord = pos.z;
+	
+	pos.xyz = (gl_ModelViewProjectionMatrix * gl_Vertex).xyz;
+	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
+	
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 45f727951e..92f1cb22d6 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaF.glsl
index 5ecbbd2c4f..4671a54078 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaF.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index d7d1111ba8..30954a8677 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 mat4 getSkinnedTransform();
@@ -21,6 +23,7 @@ varying vec3 vary_position;
 varying vec3 vary_ambient;
 varying vec3 vary_directional;
 varying vec3 vary_normal;
+varying vec3 vary_fragcoord;
 
 uniform float near_clip;
 uniform float shadow_offset;
@@ -77,7 +80,7 @@ void main()
 	gl_FrontColor = col;
 
 	gl_FogFragCoord = pos.z;
-
+	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
 }
 
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
deleted file mode 100644
index 258a9b7c40..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
+++ /dev/null
@@ -1,81 +0,0 @@
-/** 
- * @file blurLightF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * $/LicenseInfo$
- */
-
-#extension GL_ARB_texture_rectangle : enable
-
-uniform sampler2DRect depthMap;
-uniform sampler2DRect normalMap;
-uniform sampler2DRect lightMap;
-
-uniform float dist_factor;
-uniform float blur_size;
-uniform vec2 delta;
-uniform vec3 kern[4];
-uniform float kern_scale;
-
-varying vec2 vary_fragcoord;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
-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;
-}
-
-void main() 
-{
-	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;
-	
-	vec2 dlt = kern_scale * delta / (1.0+norm.xy*norm.xy);
-	
-	dlt /= max(-pos.z*dist_factor, 1.0);
-	
-	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 < 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;
-		}
-	}
-	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;
-}
-
diff --git a/indra/newview/app_settings/shaders/class2/deferred/blurLightV.glsl b/indra/newview/app_settings/shaders/class2/deferred/blurLightV.glsl
deleted file mode 100644
index b1b3f55f00..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/blurLightV.glsl
+++ /dev/null
@@ -1,17 +0,0 @@
-/** 
- * @file blurLightF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * $/LicenseInfo$
- */
-
-varying vec2 vary_fragcoord;
-uniform vec2 screen_res;
-
-void main()
-{
-	//transform vertex
-	gl_Position = ftransform(); 
-	vec4 pos = gl_ModelViewProjectionMatrix * gl_Vertex;
-	vary_fragcoord = (pos.xy*0.5+0.5)*screen_res;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
index ff32a15c54..3155f3f929 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
@@ -4,14 +4,14 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
 uniform sampler2DRect depthMap;
 uniform sampler2DRect normalMap;
 
-uniform float gi_dist_cutoff;
-
 varying vec2 vary_fragcoord;
 
 uniform float depth_cutoff;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeV.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeV.glsl
index 74f2bd9818..b3413c301f 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/edgeV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/edgeV.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 varying vec2 vary_fragcoord;
 uniform vec2 screen_res;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/postDeferredF.glsl b/indra/newview/app_settings/shaders/class2/deferred/postDeferredF.glsl
deleted file mode 100644
index 757e3e7aab..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/postDeferredF.glsl
+++ /dev/null
@@ -1,59 +0,0 @@
-/** 
- * @file postDeferredF.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * $/LicenseInfo$
- */
-
-uniform sampler2DRect diffuseRect;
-uniform sampler2DRect localLightMap;
-uniform sampler2DRect sunLightMap;
-uniform sampler2DRect giLightMap;
-uniform sampler2D	  luminanceMap;
-uniform sampler2DRect lightMap;
-
-uniform vec3 gi_lum_quad;
-uniform vec3 sun_lum_quad;
-uniform vec3 lum_quad;
-uniform float lum_lod;
-uniform vec4 ambient;
-
-uniform vec3 gi_quad;
-
-uniform vec2 screen_res;
-varying vec2 vary_fragcoord;
-
-void main() 
-{
-	vec2 tc = vary_fragcoord.xy;
-	vec3 lcol = texture2DLod(luminanceMap, tc/screen_res, lum_lod).rgb;
-
-	float lum = sqrt(lcol.r)*lum_quad.x+lcol.r*lcol.r*lum_quad.y+lcol.r*lum_quad.z;
-	
-	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord.xy);
-
-	float ambocc = texture2DRect(lightMap, vary_fragcoord.xy).g;
-			
-	vec3 gi_col = texture2DRect(giLightMap, vary_fragcoord.xy).rgb;
-	gi_col = gi_col*gi_col*gi_quad.x + gi_col*gi_quad.y+gi_quad.z*ambocc*ambient.rgb;
-	gi_col *= diff;
-	
-	vec4 sun_col =	texture2DRect(sunLightMap, vary_fragcoord.xy);
-	
-	vec3 local_col = texture2DRect(localLightMap, vary_fragcoord.xy).rgb;
-		
-
-	float sun_lum = 1.0-lum;
-	sun_lum = sun_lum*sun_lum*sun_lum_quad.x + sun_lum*sun_lum_quad.y+sun_lum_quad.z;
-		
-	float gi_lum = lum;
-	gi_lum = gi_lum*gi_lum*gi_lum_quad.x+gi_lum*gi_lum_quad.y+gi_lum_quad.z;
-	gi_col *= 1.0/gi_lum;
-		
-	vec3 col = sun_col.rgb*(1.0+max(sun_lum,0.0))+gi_col+local_col;
-	
-	gl_FragColor.rgb = col.rgb;
-	gl_FragColor.a = max(sun_lum*min(sun_col.r+sun_col.g+sun_col.b, 1.0), sun_col.a);
-	
-	//gl_FragColor.rgb = texture2DRect(giLightMap, vary_fragcoord.xy).rgb;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/postDeferredV.glsl b/indra/newview/app_settings/shaders/class2/deferred/postDeferredV.glsl
deleted file mode 100644
index 0ec81dcb02..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/postDeferredV.glsl
+++ /dev/null
@@ -1,17 +0,0 @@
-/** 
- * @file postDeferredV.glsl
- *
- * $LicenseInfo:firstyear=2007&license=viewerlgpl$
- * $/LicenseInfo$
- */
-
-varying vec2 vary_fragcoord;
-uniform vec2 screen_res;
-
-void main()
-{
-	//transform vertex
-	gl_Position = ftransform(); 
-	vec4 pos = gl_ModelViewProjectionMatrix * gl_Vertex;
-	vary_fragcoord = (pos.xy*0.5+0.5)*screen_res;
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index 1067be1e6e..0160e84278 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightV.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightV.glsl
index 9d187b46e2..8f0bcca76b 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightV.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 uniform vec2 screen_res;
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index d0e242c2d4..50b9ef276e 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -4,7 +4,7 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
-
+ 
 #version 120
 
 #extension GL_ARB_texture_rectangle : enable
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index f565d3bdb9..26bc83e0d4 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
index 4e33a1af45..08b16d787f 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -4,6 +4,8 @@
  * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
  * $License$
  */
+ 
+#version 120
 
 #extension GL_ARB_texture_rectangle : enable
 
@@ -60,58 +62,50 @@ vec4 getPosition(vec2 pos_screen)
 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;
+	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 angle_hidden = 0.0;
+	int points = 0;
 		
-		float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
+	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; 
+	// 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);
+		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)
+		// 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);
+		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);
+	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);
-	}
+	ret = (1.0 - (float(points != 0) * angle_hidden));
 	
 	return min(ret, 1.0);
 }
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightV.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightV.glsl
index 9d092d9cea..9beb513ad8 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightV.glsl
@@ -4,6 +4,8 @@
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * $/LicenseInfo$
  */
+ 
+#version 120
 
 varying vec4 vary_light;
 varying vec2 vary_fragcoord;