From 7158dfdff360a22dd1c460e06c2d5f3d3c0b2b15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fernando=20Garc=C3=ADa=20Li=C3=B1=C3=A1n?=
 <fernandogarcialinan@gmail.com>
Date: Tue, 22 Dec 2020 17:21:34 +0100
Subject: [PATCH] Revert "Add clustered shading support to most Effects and
 shaders"

This reverts commit b3237e207a54748657d46d1441a8b6a10e5bf2f2.
---
 Compositor/Classic/common-scene.xml      | 8 --------
 Effects/agriculture.eff                  | 1 -
 Effects/airfield.eff                     | 1 -
 Effects/chute.eff                        | 1 -
 Effects/cliffs.eff                       | 1 -
 Effects/crop.eff                         | 1 -
 Effects/dirt-runway.eff                  | 1 -
 Effects/flutter.eff                      | 4 +---
 Effects/forest.eff                       | 1 -
 Effects/glacier.eff                      | 1 -
 Effects/grass.eff                        | 1 -
 Effects/herbtundra.eff                   | 1 -
 Effects/model-combined.eff               | 9 +++------
 Effects/model-default.eff                | 1 -
 Effects/model-interior-display.eff       | 1 -
 Effects/model-interior.eff               | 2 --
 Effects/model-wingflex.eff               | 4 +---
 Effects/road.eff                         | 1 -
 Effects/rock.eff                         | 1 -
 Effects/runway.eff                       | 4 +---
 Effects/terrain-default.eff              | 4 ----
 Effects/terrain-overlay.eff              | 1 -
 Effects/transition.eff                   | 1 -
 Shaders/agriculture-ALS.frag             | 4 +---
 Shaders/airfield-ALS.frag                | 3 ---
 Shaders/chute-ALS.vert                   | 5 ++---
 Shaders/cliffs-ALS.frag                  | 4 +---
 Shaders/crop.frag                        | 2 --
 Shaders/default.frag                     | 3 ---
 Shaders/default.vert                     | 4 +---
 Shaders/drunway-ALS.frag                 | 4 +---
 Shaders/flutter-ALS.vert                 | 3 +--
 Shaders/flutter.vert                     | 3 +--
 Shaders/forest.frag                      | 1 -
 Shaders/generic-ALS-base.vert            | 5 ++---
 Shaders/model-ALS-base.frag              | 4 +---
 Shaders/model-ALS-ultra.frag             | 3 ---
 Shaders/model-ALS-wingflex.vert          | 2 +-
 Shaders/model-interior-ALS-base.frag     | 3 ---
 Shaders/model-interior-ALS-base.vert     | 5 ++---
 Shaders/model-interior-ALS-detailed.frag | 4 ----
 Shaders/model-interior-ALS-detailed.vert | 5 ++---
 Shaders/model-interior-display-ALS.frag  | 3 ---
 Shaders/road-ALS-ultra.frag              | 3 +--
 Shaders/rock-ALS.frag                    | 4 +---
 Shaders/runway-ALS.frag                  | 4 +---
 Shaders/runway.frag                      | 4 ----
 Shaders/runway.vert                      | 3 +--
 Shaders/terrain-ALS-base.frag            | 3 ---
 Shaders/terrain-ALS-detailed.frag        | 4 +---
 Shaders/terrain-ALS-detailed.vert        | 3 +--
 Shaders/terrain-ALS-ultra.frag           | 4 ----
 Shaders/terrain-ALS-ultra.vert           | 5 ++---
 Shaders/transition.frag                  | 3 ---
 Shaders/transition.vert                  | 3 +--
 Shaders/ubershader.frag                  | 3 ---
 defaults.xml                             | 3 ---
 57 files changed, 31 insertions(+), 139 deletions(-)

diff --git a/Compositor/Classic/common-scene.xml b/Compositor/Classic/common-scene.xml
index 2b35a82f3..e5941b7e8 100644
--- a/Compositor/Classic/common-scene.xml
+++ b/Compositor/Classic/common-scene.xml
@@ -6,14 +6,6 @@
   <use-shadow-pass>csm1</use-shadow-pass>
   <use-shadow-pass>csm2</use-shadow-pass>
   <use-shadow-pass>csm3</use-shadow-pass>
-  <clustered-shading>
-    <tile-size>128</tile-size>
-    <depth-slices>1</depth-slices>
-    <num-threads>1</num-threads>
-    <condition>
-      <property>/sim/rendering/clustered-shading/enabled</property>
-    </condition>
-  </clustered-shading>
   <binding>
     <buffer>sun-shadowmap-atlas</buffer>
     <unit>10</unit>
diff --git a/Effects/agriculture.eff b/Effects/agriculture.eff
index a81041cde..88ec9335c 100644
--- a/Effects/agriculture.eff
+++ b/Effects/agriculture.eff
@@ -252,7 +252,6 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
 	  <uniform>
         <name>grain_strength</name>
diff --git a/Effects/airfield.eff b/Effects/airfield.eff
index b8b9f4872..7209ca365 100644
--- a/Effects/airfield.eff
+++ b/Effects/airfield.eff
@@ -147,7 +147,6 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
diff --git a/Effects/chute.eff b/Effects/chute.eff
index 68a4e5a67..163322f6d 100644
--- a/Effects/chute.eff
+++ b/Effects/chute.eff
@@ -81,7 +81,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
diff --git a/Effects/cliffs.eff b/Effects/cliffs.eff
index 8fe14091f..373f097dc 100644
--- a/Effects/cliffs.eff
+++ b/Effects/cliffs.eff
@@ -97,7 +97,6 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
 	  <uniform>
         <name>intrinsic_wetness</name>
diff --git a/Effects/crop.eff b/Effects/crop.eff
index e4feeba66..ebb2cdfbd 100644
--- a/Effects/crop.eff
+++ b/Effects/crop.eff
@@ -93,7 +93,6 @@
         <fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
         <fragment-shader n="1">Shaders/crop.frag</fragment-shader>
         <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>NoiseTex</name>
diff --git a/Effects/dirt-runway.eff b/Effects/dirt-runway.eff
index 35d3ed09b..333fc3776 100644
--- a/Effects/dirt-runway.eff
+++ b/Effects/dirt-runway.eff
@@ -148,7 +148,6 @@
         <fragment-shader n="4">Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader n="5">Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader n="6">Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader n="7">Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
diff --git a/Effects/flutter.eff b/Effects/flutter.eff
index 75c90c070..2f965b850 100644
--- a/Effects/flutter.eff
+++ b/Effects/flutter.eff
@@ -151,7 +151,6 @@
 				<fragment-shader>Shaders/noise.frag</fragment-shader>
 				<fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
                 <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
 			</program>
 			<uniform>
 				<name>colorMode</name>
@@ -434,8 +433,7 @@
 				<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/default.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
-            </program>
+			</program>
 			<!--<uniform>
 				<name>texture</name>
 				<type>sampler-2d</type>
diff --git a/Effects/forest.eff b/Effects/forest.eff
index 631a3ea97..566def1f8 100644
--- a/Effects/forest.eff
+++ b/Effects/forest.eff
@@ -166,7 +166,6 @@
 				<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/forest.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>tangent</name>
           <index>6</index>
diff --git a/Effects/glacier.eff b/Effects/glacier.eff
index f77274ef2..287ecc642 100644
--- a/Effects/glacier.eff
+++ b/Effects/glacier.eff
@@ -162,7 +162,6 @@
 				<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/forest.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>tangent</name>
           <index>6</index>
diff --git a/Effects/grass.eff b/Effects/grass.eff
index 2262d12cc..7402e9e8a 100644
--- a/Effects/grass.eff
+++ b/Effects/grass.eff
@@ -140,7 +140,6 @@
 	<fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
diff --git a/Effects/herbtundra.eff b/Effects/herbtundra.eff
index 15945fc26..d1834bcc4 100644
--- a/Effects/herbtundra.eff
+++ b/Effects/herbtundra.eff
@@ -162,7 +162,6 @@
 				<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/forest.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>tangent</name>
           <index>6</index>
diff --git a/Effects/model-combined.eff b/Effects/model-combined.eff
index 33b6f06ea..3a5d2bf3a 100644
--- a/Effects/model-combined.eff
+++ b/Effects/model-combined.eff
@@ -450,8 +450,7 @@ please see Docs/README.model-combined.eff for documentation
 				<fragment-shader n="4">Shaders/noise.frag</fragment-shader>
 				<fragment-shader n="5">Shaders/filters-ALS.frag</fragment-shader>
                 <fragment-shader n="6">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="7">Shaders/clustered-include.frag</fragment-shader>
-	           </program>
+			   </program>
 			   
 			   <uniform>
 				   <name>BaseTex</name>
@@ -1520,8 +1519,7 @@ please see Docs/README.model-combined.eff for documentation
 			  <fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 			  <fragment-shader n="1">Shaders/ubershader.frag</fragment-shader>
               <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-              <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
-          </program>
+		  </program>
 
 		  <uniform>
 			<name>BaseTex</name>
@@ -2116,8 +2114,7 @@ please see Docs/README.model-combined.eff for documentation
 			  <fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 			  <fragment-shader n="1">Shaders/ubershader.frag</fragment-shader>
               <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-              <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
-          </program>
+		  </program>
 
 		  <uniform>
 			<name>BaseTex</name>
diff --git a/Effects/model-default.eff b/Effects/model-default.eff
index 046ae1fbc..be34c6906 100644
--- a/Effects/model-default.eff
+++ b/Effects/model-default.eff
@@ -137,7 +137,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
diff --git a/Effects/model-interior-display.eff b/Effects/model-interior-display.eff
index a4b859f35..e85cf74af 100644
--- a/Effects/model-interior-display.eff
+++ b/Effects/model-interior-display.eff
@@ -109,7 +109,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
diff --git a/Effects/model-interior.eff b/Effects/model-interior.eff
index ec121a7bc..6428b6a23 100644
--- a/Effects/model-interior.eff
+++ b/Effects/model-interior.eff
@@ -148,7 +148,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
@@ -566,7 +565,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
diff --git a/Effects/model-wingflex.eff b/Effects/model-wingflex.eff
index a7a3ca220..3e295696b 100644
--- a/Effects/model-wingflex.eff
+++ b/Effects/model-wingflex.eff
@@ -457,8 +457,7 @@
 				<fragment-shader n="5">Shaders/noise.frag</fragment-shader>
         			<fragment-shader n="6">Shaders/filters-ALS.frag</fragment-shader>
                 <fragment-shader n="7">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="8">Shaders/clustered-include.frag</fragment-shader>
-               </program>
+			   </program>
 			   
 			   <uniform>
 				   <name>BaseTex</name>
@@ -1551,7 +1550,6 @@
               <fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 			  <fragment-shader n="1">Shaders/ubershader.frag</fragment-shader>
               <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-              <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
           </program>
 
 		  <uniform>
diff --git a/Effects/road.eff b/Effects/road.eff
index 7b10a7ca4..dd3869ca8 100644
--- a/Effects/road.eff
+++ b/Effects/road.eff
@@ -315,7 +315,6 @@
 				<fragment-shader>Shaders/noise.frag</fragment-shader>
 				<fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
                 <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
 				<attribute>
 					    <name>tangent</name>
 					    <index>6</index>
diff --git a/Effects/rock.eff b/Effects/rock.eff
index b61b4ee9e..3d0bd0b74 100644
--- a/Effects/rock.eff
+++ b/Effects/rock.eff
@@ -97,7 +97,6 @@
 	<fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
 	<fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
     <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-    <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
       </program>
 	  <uniform>
         <name>intrinsic_wetness</name>
diff --git a/Effects/runway.eff b/Effects/runway.eff
index fb5807687..6a8abe7f0 100644
--- a/Effects/runway.eff
+++ b/Effects/runway.eff
@@ -213,7 +213,6 @@
         <fragment-shader n="5">Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader n="6">Shaders/lightspot-ALS.frag</fragment-shader>
         <fragment-shader n="7">Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader n="8">Shaders/clustered-include.frag</fragment-shader>
       </program>
       <uniform>
         <name>visibility</name>
@@ -1047,8 +1046,7 @@
                 <fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/runway.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
-                <attribute>
+				<attribute>
 					<name>tangent</name>
 					<index>6</index>
 				</attribute>
diff --git a/Effects/terrain-default.eff b/Effects/terrain-default.eff
index 80381e923..4d5d0d859 100644
--- a/Effects/terrain-default.eff
+++ b/Effects/terrain-default.eff
@@ -330,7 +330,6 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
@@ -983,7 +982,6 @@
         <fragment-shader>Shaders/hazes.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
@@ -1302,7 +1300,6 @@
         <fragment-shader>Shaders/noise.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
@@ -1564,7 +1561,6 @@
         <fragment-shader>Shaders/default.frag</fragment-shader>
         <fragment-shader>Shaders/include_fog.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
diff --git a/Effects/terrain-overlay.eff b/Effects/terrain-overlay.eff
index ebc82e794..4e6a07f06 100644
--- a/Effects/terrain-overlay.eff
+++ b/Effects/terrain-overlay.eff
@@ -160,7 +160,6 @@
         <fragment-shader>Shaders/secondary_lights.frag</fragment-shader>
         <fragment-shader>Shaders/filters-ALS.frag</fragment-shader>
         <fragment-shader>Shaders/shadows-include.frag</fragment-shader>
-        <fragment-shader>Shaders/clustered-include.frag</fragment-shader>
         <attribute>
           <name>orthophotoTexCoord</name>
           <index>14</index>
diff --git a/Effects/transition.eff b/Effects/transition.eff
index 7389056d1..4349a9e68 100644
--- a/Effects/transition.eff
+++ b/Effects/transition.eff
@@ -251,7 +251,6 @@ parameters :
 				<fragment-shader n="0">Shaders/include_fog.frag</fragment-shader>
 				<fragment-shader n="1">Shaders/transition.frag</fragment-shader>
                 <fragment-shader n="2">Shaders/shadows-include.frag</fragment-shader>
-                <fragment-shader n="3">Shaders/clustered-include.frag</fragment-shader>
 			</program>
 
 			<uniform>
diff --git a/Shaders/agriculture-ALS.frag b/Shaders/agriculture-ALS.frag
index 965b76127..ad132b962 100644
--- a/Shaders/agriculture-ALS.frag
+++ b/Shaders/agriculture-ALS.frag
@@ -10,7 +10,7 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
+
 
 
 uniform sampler2D texture;
@@ -93,7 +93,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 // a fade function for procedural scales which are smaller than a pixel
@@ -454,7 +453,6 @@ if ((dist < 5000.0)&& (quality_level > 3) && (combined_wetness>0.0))
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
    float lightArg = (terminator-yprime_alt)/100000.0;
    vec3 hazeColor = get_hazeColor(lightArg);
diff --git a/Shaders/airfield-ALS.frag b/Shaders/airfield-ALS.frag
index c33cc17fe..2b87538a3 100644
--- a/Shaders/airfield-ALS.frag
+++ b/Shaders/airfield-ALS.frag
@@ -9,7 +9,6 @@ varying vec3 relPos;
 varying vec3 worldPos;
 varying vec2 rawPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
 varying vec2 orthoTexCoord;
 
 
@@ -84,7 +83,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 float detail_fade (in float scale, in float angle, in float dist)
@@ -338,7 +336,6 @@ if (quality_level > 3)
     color.rgb +=secondary_light * light_distance_fading(dist);
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
 
     float lightArg = (terminator-yprime_alt)/100000.0;
diff --git a/Shaders/chute-ALS.vert b/Shaders/chute-ALS.vert
index 6c9697b31..9c97fdc8b 100644
--- a/Shaders/chute-ALS.vert
+++ b/Shaders/chute-ALS.vert
@@ -22,7 +22,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -121,7 +120,7 @@ void main()
 
 // this code is copied from default.vert
 
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     //gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     normal = gl_NormalMatrix * gl_Normal;
@@ -288,7 +287,7 @@ else // the faster, full-day version without lightfields
     gl_BackColor.rgb = constant_term.rgb; gl_BackColor.a = 0.0;
     gl_Position = gl_ModelViewProjectionMatrix * vertex;
 
-    setupShadows(ecPosition);
+    setupShadows(gl_ModelViewMatrix * vertex);
 }
 
 
diff --git a/Shaders/cliffs-ALS.frag b/Shaders/cliffs-ALS.frag
index 549bbaf5f..b96e7b7e5 100644
--- a/Shaders/cliffs-ALS.frag
+++ b/Shaders/cliffs-ALS.frag
@@ -10,7 +10,7 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
+
 
 
 varying float steepness;
@@ -84,7 +84,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float light_func (in float x, in float a, in float b, in float c, in float d, in float e)
 {
@@ -428,7 +427,6 @@ if ((dist < 5000.0) && (combined_wetness>0.0))
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
 float lightArg = (terminator-yprime_alt)/100000.0;	
 vec3 hazeColor = get_hazeColor(lightArg);
diff --git a/Shaders/crop.frag b/Shaders/crop.frag
index dd575b0b4..ed0349258 100644
--- a/Shaders/crop.frag
+++ b/Shaders/crop.frag
@@ -25,7 +25,6 @@ vec3 fog_Func(vec3 color, int type);
 //////////////////////
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 void main (void)
 {
@@ -72,7 +71,6 @@ void main (void)
 
 	c1 *= ambient_light;
 	vec4 finalColor = c1;
-    finalColor.rgb += getClusteredLightsContribution(ecPosition.xyz, VNormal, basecolor.rgb);
 
 // 	if(gl_Fog.density == 1.0)
 // 		fogFactor=1.0;
diff --git a/Shaders/default.frag b/Shaders/default.frag
index 8bd60ccf6..943671f59 100644
--- a/Shaders/default.frag
+++ b/Shaders/default.frag
@@ -6,7 +6,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 uniform sampler2D texture;
 uniform sampler2D orthophotoTexture;
@@ -20,7 +19,6 @@ vec3 fog_Func(vec3 color, int type);
 //////////////////////
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -69,7 +67,6 @@ void main()
     }
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
     fragColor.rgb = fog_Func(fragColor.rgb, fogType);
     gl_FragColor = fragColor;
diff --git a/Shaders/default.vert b/Shaders/default.vert
index ef8cfa17c..0635ee02a 100644
--- a/Shaders/default.vert
+++ b/Shaders/default.vert
@@ -21,7 +21,6 @@ attribute vec2 orthophotoTexCoord;
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 uniform int colorMode;
 
@@ -36,7 +35,6 @@ void setupShadows(vec4 eyeSpacePos);
 void main()
 {
     gl_Position = ftransform();
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     orthoTexCoord = orthophotoTexCoord;
     normal = gl_NormalMatrix * gl_Normal;
@@ -66,5 +64,5 @@ void main()
     gl_BackColor.rgb = constant_term.rgb; gl_BackColor.a = 0.0;
     //fogCoord = abs(ecPosition.z / ecPosition.w);
 		//fog_Func(fogType);
-    setupShadows(ecPosition);
+    setupShadows(gl_ModelViewMatrix * gl_Vertex);
 }
diff --git a/Shaders/drunway-ALS.frag b/Shaders/drunway-ALS.frag
index b40913b24..cccb77060 100644
--- a/Shaders/drunway-ALS.frag
+++ b/Shaders/drunway-ALS.frag
@@ -8,7 +8,6 @@ varying vec3 normal;
 varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -85,7 +84,6 @@ vec3 get_hazeColor(in float light_arg);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 void main()
@@ -321,7 +319,7 @@ if ((dist < 5000.0)&& (quality_level > 3) && (wetness>0.0))
     color.rgb +=secondary_light * light_distance_fading(dist);
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
+
 
 float lightArg = (terminator-yprime_alt)/100000.0;
 
diff --git a/Shaders/flutter-ALS.vert b/Shaders/flutter-ALS.vert
index bcbeac019..9c0f9c4ee 100644
--- a/Shaders/flutter-ALS.vert
+++ b/Shaders/flutter-ALS.vert
@@ -24,7 +24,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -143,7 +142,7 @@ void main()
     gl_Position = gl_ModelViewProjectionMatrix * pos;
 
     //do the colour and fog
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
 
 
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
diff --git a/Shaders/flutter.vert b/Shaders/flutter.vert
index 4d93d7dad..3de78d2a3 100644
--- a/Shaders/flutter.vert
+++ b/Shaders/flutter.vert
@@ -23,7 +23,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 //varying float fogCoord;
-varying vec4 ecPosition;
 
 uniform int colorMode;
 uniform float osg_SimulationTime;
@@ -108,7 +107,7 @@ void main()
     gl_Position = gl_ModelViewProjectionMatrix * pos;
 
     //do the colour and fog
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
 
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     normal = gl_NormalMatrix * gl_Normal;
diff --git a/Shaders/forest.frag b/Shaders/forest.frag
index 220474bc9..084fded6e 100644
--- a/Shaders/forest.frag
+++ b/Shaders/forest.frag
@@ -189,7 +189,6 @@ void main (void)
 
 	c1 *= ambient_light;
 	vec4 finalColor = c1;
-    finalColor.rgb += getClusteredLightsContribution(ecPosition.xyz, VNormal, basecolor.rgb);
 
 	finalColor.rgb = fog_Func(finalColor.rgb, fogType);
 	gl_FragColor = finalColor;
diff --git a/Shaders/generic-ALS-base.vert b/Shaders/generic-ALS-base.vert
index 3c531c444..798259b3e 100644
--- a/Shaders/generic-ALS-base.vert
+++ b/Shaders/generic-ALS-base.vert
@@ -25,7 +25,6 @@ varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -78,7 +77,7 @@ void main()
 
 // this code is copied from default.vert
 
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     orthoTexCoord = orthophotoTexCoord;
@@ -245,7 +244,7 @@ else // the faster, full-day version without lightfields
     gl_FrontColor.rgb = constant_term.rgb;  gl_FrontColor.a = 1.0;
     gl_BackColor.rgb = constant_term.rgb; gl_BackColor.a = 0.0;
 
-    setupShadows(ecPosition);
+    setupShadows(gl_ModelViewMatrix * gl_Vertex);
 }
 
 
diff --git a/Shaders/model-ALS-base.frag b/Shaders/model-ALS-base.frag
index d97548769..ecd756ff1 100644
--- a/Shaders/model-ALS-base.frag
+++ b/Shaders/model-ALS-base.frag
@@ -6,7 +6,7 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
+
 
 uniform sampler2D texture;
 
@@ -57,7 +57,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -148,7 +147,6 @@ void main()
 
     texel = texture2D(texture, gl_TexCoord[0].st);
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
 
 float lightArg = (terminator-yprime_alt)/100000.0;
diff --git a/Shaders/model-ALS-ultra.frag b/Shaders/model-ALS-ultra.frag
index 3aa7a5504..56bc9e3a5 100644
--- a/Shaders/model-ALS-ultra.frag
+++ b/Shaders/model-ALS-ultra.frag
@@ -120,7 +120,6 @@ vec3 moonlight_perception (in vec3 light) ;
 vec3 addLights(in vec3 color1, in vec3 color2);
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 float light_func (in float x, in float a, in float b, in float c, in float d, in float e)
@@ -506,8 +505,6 @@ void main (void)
 
     fragColor += Specular * nmap.a;
 
-    fragColor.rgb += getClusteredLightsContribution(vertVec, N, texel.rgb);
-
     //////////////////////////////////////////////////////////////////////
     // BEGIN lightmap
     //////////////////////////////////////////////////////////////////////
diff --git a/Shaders/model-ALS-wingflex.vert b/Shaders/model-ALS-wingflex.vert
index ec758816b..b9e58372c 100644
--- a/Shaders/model-ALS-wingflex.vert
+++ b/Shaders/model-ALS-wingflex.vert
@@ -247,5 +247,5 @@ void	main(void)
 		//gl_Position = ftransform();
 		gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
 
-        setupShadows(ecPosition);
+        setupShadows(gl_ModelViewMatrix * vertex);
 }
diff --git a/Shaders/model-interior-ALS-base.frag b/Shaders/model-interior-ALS-base.frag
index 04c6432d4..979174d60 100644
--- a/Shaders/model-interior-ALS-base.frag
+++ b/Shaders/model-interior-ALS-base.frag
@@ -6,7 +6,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -64,7 +63,6 @@ vec3 flashlight(in vec3 color, in float radius);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -175,7 +173,6 @@ void main()
 
     texel = texture2D(texture, gl_TexCoord[0].st);
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
    // implicit lightmap - the user gets to select 
 
diff --git a/Shaders/model-interior-ALS-base.vert b/Shaders/model-interior-ALS-base.vert
index b352328ac..aabece957 100644
--- a/Shaders/model-interior-ALS-base.vert
+++ b/Shaders/model-interior-ALS-base.vert
@@ -22,7 +22,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -77,7 +76,7 @@ void main()
 
 // this code is copied from default.vert
 
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     normal = gl_NormalMatrix * gl_Normal;
@@ -244,6 +243,6 @@ else // the faster, full-day version without lightfields
     gl_BackColor.rgb = constant_term.rgb; gl_BackColor.a = 0.0;
 
     if (shadow_mapping_enabled) {
-        setupShadows(ecPosition);
+        setupShadows(gl_ModelViewMatrix * gl_Vertex);
     }
 }
diff --git a/Shaders/model-interior-ALS-detailed.frag b/Shaders/model-interior-ALS-detailed.frag
index 6a3745a7b..eb78c86d7 100644
--- a/Shaders/model-interior-ALS-detailed.frag
+++ b/Shaders/model-interior-ALS-detailed.frag
@@ -7,7 +7,6 @@ varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
 varying vec3 rawpos;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -80,7 +79,6 @@ vec3 flashlight(in vec3 color, in float radius);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -207,8 +205,6 @@ void main()
     fragColor = color * texel;
     fragColor.rgb += specular.rgb;
 
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
-
    // implicit lightmap - the user gets to select a color which is then made emissive
 
    if (implicit_lightmap_enabled == 1)
diff --git a/Shaders/model-interior-ALS-detailed.vert b/Shaders/model-interior-ALS-detailed.vert
index 537c7b0dc..639d6815b 100644
--- a/Shaders/model-interior-ALS-detailed.vert
+++ b/Shaders/model-interior-ALS-detailed.vert
@@ -23,7 +23,6 @@ varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
 varying vec3 rawpos;
-varying vec4 ecPosition;
 
 varying float yprime_alt;
 varying float mie_angle;
@@ -87,7 +86,7 @@ void main()
 
 // this code is copied from default.vert
 
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     normal = gl_NormalMatrix * gl_Normal;
@@ -302,7 +301,7 @@ else // the faster, full-day version without lightfields
     gl_BackColor.rgb = constant_term.rgb; gl_BackColor.a = 0.0;
 
     if (shadow_mapping_enabled) {
-        setupShadows(ecPosition);
+        setupShadows(gl_ModelViewMatrix * gl_Vertex);
     }
 }
 
diff --git a/Shaders/model-interior-display-ALS.frag b/Shaders/model-interior-display-ALS.frag
index 400540d6b..009048ecb 100644
--- a/Shaders/model-interior-display-ALS.frag
+++ b/Shaders/model-interior-display-ALS.frag
@@ -6,7 +6,6 @@
 varying vec4 diffuse_term;
 varying vec3 normal;
 varying vec3 relPos;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -86,7 +85,6 @@ vec3 flashlight(in vec3 color, in float radius);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -310,7 +308,6 @@ void main()
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
    // explicit lightmap
 
diff --git a/Shaders/road-ALS-ultra.frag b/Shaders/road-ALS-ultra.frag
index 7296d5dbd..89a21da9e 100644
--- a/Shaders/road-ALS-ultra.frag
+++ b/Shaders/road-ALS-ultra.frag
@@ -114,7 +114,6 @@ vec3 filter_combined (in vec3 color) ;
 vec3 addLights(in vec3 color1, in vec3 color2);
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 float light_func (in float x, in float a, in float b, in float c, in float d, in float e)
@@ -626,7 +625,7 @@ void main (void)
 
     fragColor += Specular * nmap.a;
 
-    fragColor.rgb += getClusteredLightsContribution(vertVec, N, texel.rgb);
+
 
     //////////////////////////////////////////////////////////////////////
     // BEGIN procedural lightmap
diff --git a/Shaders/rock-ALS.frag b/Shaders/rock-ALS.frag
index f55a05f60..b764f7fb5 100644
--- a/Shaders/rock-ALS.frag
+++ b/Shaders/rock-ALS.frag
@@ -9,7 +9,7 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
+
 
 
 varying float steepness;
@@ -85,7 +85,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float light_func (in float x, in float a, in float b, in float c, in float d, in float e)
 {
@@ -487,7 +486,6 @@ if ((dist < 5000.0) && (combined_wetness>0.0))
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
 float lightArg = (terminator-yprime_alt)/100000.0;	
 vec3 hazeColor = get_hazeColor(lightArg);
diff --git a/Shaders/runway-ALS.frag b/Shaders/runway-ALS.frag
index 56129de64..fdacfc916 100644
--- a/Shaders/runway-ALS.frag
+++ b/Shaders/runway-ALS.frag
@@ -9,7 +9,6 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec3 ecViewdir;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -75,7 +74,6 @@ vec3 get_hazeColor(in float light_arg);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 void main()
@@ -345,7 +343,7 @@ if ((dist < 5000.0)&& (quality_level > 3) && (wetness>0.0))
     color.rgb +=secondary_light * light_distance_fading(dist) + lightspot(relPos);
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb + (2.0 * N.r + 0.1 * (noise_01m-0.5))* (1.0 - water_factor)) ;
+
 
 float lightArg = (terminator-yprime_alt)/100000.0;
 
diff --git a/Shaders/runway.frag b/Shaders/runway.frag
index b45e0ffda..7ed26f317 100644
--- a/Shaders/runway.frag
+++ b/Shaders/runway.frag
@@ -10,7 +10,6 @@ varying vec3  VTangent;
 varying vec3  VBinormal;
 varying vec3  vViewVec;
 varying vec3  reflVec;
-varying vec3  vertVec;
 
 varying vec4 Diffuse;
 varying float alpha;
@@ -40,7 +39,6 @@ vec3 fog_Func(vec3 color, int type);
 //////////////////////
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 void main (void)
 {
@@ -132,8 +130,6 @@ void main (void)
     vec4 fragColor = vec4(color.rgb * mixedcolor.rgb  + ambient_Correction.rgb * (1.0 - refl_correction * (1.0 - 0.8 * lightness)) * nFactor, color.a);
 	fragColor += Specular * nmap.a * nFactor;
 
-    fragColor.rgb += getClusteredLightsContribution(vertVec, N, texel.rgb);
-
     fragColor.rgb = fog_Func(fragColor.rgb, fogType);
     gl_FragColor = fragColor;
 }
diff --git a/Shaders/runway.vert b/Shaders/runway.vert
index 66344e1a8..b1ee32efa 100644
--- a/Shaders/runway.vert
+++ b/Shaders/runway.vert
@@ -11,7 +11,6 @@ varying vec3  VBinormal;
 varying vec3  Normal;
 varying vec3 vViewVec;
 varying vec3 reflVec;
-varying vec3 vertVec;
 
 varying vec4 Diffuse;
 varying float alpha;
@@ -57,7 +56,7 @@ void main(void)
         alpha = gl_Color.a;
 
     // Vertex in eye coordinates
-    vertVec = ecPosition.xyz;
+    vec3 vertVec = ecPosition.xyz;
 
     vViewVec.x = dot(t, vertVec);
     vViewVec.y = dot(b, vertVec);
diff --git a/Shaders/terrain-ALS-base.frag b/Shaders/terrain-ALS-base.frag
index 841eb6a03..dffde6229 100644
--- a/Shaders/terrain-ALS-base.frag
+++ b/Shaders/terrain-ALS-base.frag
@@ -15,7 +15,6 @@ uniform sampler2D orthophotoTexture;
 varying float yprime_alt;
 varying float mie_angle;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 
 uniform float visibility;
@@ -41,7 +40,6 @@ vec3 get_hazeColor(in float light_arg);
 vec3 filter_combined (in vec3 color);
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 float luminance(vec3 color)
 {
@@ -101,7 +99,6 @@ void main()
     }
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
 
 
 
diff --git a/Shaders/terrain-ALS-detailed.frag b/Shaders/terrain-ALS-detailed.frag
index f59040dbd..2dcb0bf9f 100644
--- a/Shaders/terrain-ALS-detailed.frag
+++ b/Shaders/terrain-ALS-detailed.frag
@@ -9,7 +9,7 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec2 orthoTexCoord;
-varying vec4 eyePos;
+
 
 
 uniform sampler2D texture;
@@ -61,7 +61,6 @@ vec3 get_hazeColor(in float light_arg);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 void main()
@@ -339,7 +338,6 @@ if ((dist < 5000.0)&& (quality_level > 3) && (wetness>0.0))
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(eyePos.xyz, n, texel.rgb);
 
 // here comes the terrain haze model
 
diff --git a/Shaders/terrain-ALS-detailed.vert b/Shaders/terrain-ALS-detailed.vert
index 17d2dc156..2b29bcee4 100644
--- a/Shaders/terrain-ALS-detailed.vert
+++ b/Shaders/terrain-ALS-detailed.vert
@@ -27,7 +27,6 @@ varying vec3 relPos;
 varying vec2 rawPos;
 varying vec3 worldPos;
 varying vec2 orthoTexCoord;
-varying vec4 eyePos;
 
 
 varying float mie_angle;
@@ -89,7 +88,7 @@ void main()
   float scattering;
 
     rawPos = gl_Vertex.xy;
-    eyePos = gl_ModelViewMatrix * gl_Vertex;
+    vec4 eyePos = gl_ModelViewMatrix * gl_Vertex;
     worldPos = (osg_ViewMatrixInverse * eyePos).xyz;
     steepness = dot(normalize(gl_Normal), vec3 (0.0, 0.0, 1.0));
 
diff --git a/Shaders/terrain-ALS-ultra.frag b/Shaders/terrain-ALS-ultra.frag
index 8ef7fb468..df6b224a2 100644
--- a/Shaders/terrain-ALS-ultra.frag
+++ b/Shaders/terrain-ALS-ultra.frag
@@ -11,7 +11,6 @@ varying vec3 worldPos;
 varying vec3 ecViewdir;
 varying vec2 grad_dir;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 
 uniform sampler2D texture;
@@ -94,7 +93,6 @@ vec3 landing_light(in float offset, in float offsetv);
 vec3 filter_combined (in vec3 color) ;
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 // a fade function for procedural scales which are smaller than a pixel
@@ -499,8 +497,6 @@ if ((dist < 5000.0) && (combined_wetness>0.0))
 
 
     fragColor = color * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(ecPosition.xyz, n, texel.rgb);
-
 
    float lightArg = (terminator-yprime_alt)/100000.0;
    vec3 hazeColor = get_hazeColor(lightArg);
diff --git a/Shaders/terrain-ALS-ultra.vert b/Shaders/terrain-ALS-ultra.vert
index 191061152..f58ab8ee1 100644
--- a/Shaders/terrain-ALS-ultra.vert
+++ b/Shaders/terrain-ALS-ultra.vert
@@ -29,7 +29,6 @@ varying vec3 worldPos;
 varying vec3 ecViewdir;
 varying vec2 grad_dir;
 varying vec2 orthoTexCoord;
-varying vec4 ecPosition;
 
 varying float mie_angle;
 varying float steepness;
@@ -111,7 +110,7 @@ void main()
 
 // this code is copied from default.vert
 
-    ecPosition = gl_ModelViewMatrix * gl_Vertex;
+    //vec4 ecPosition = gl_ModelViewMatrix * gl_Vertex;
     //gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
     orthoTexCoord = orthophotoTexCoord;
@@ -297,7 +296,7 @@ if (use_IR_vision)
     gl_FrontColor.a = mie_angle;
     gl_BackColor.a = mie_angle;
 
-    setupShadows(ecPosition);
+    setupShadows(gl_ModelViewMatrix * gl_Vertex);
 }
 
 
diff --git a/Shaders/transition.frag b/Shaders/transition.frag
index b750c4e8c..29f09c201 100644
--- a/Shaders/transition.frag
+++ b/Shaders/transition.frag
@@ -9,7 +9,6 @@ varying float   RawPosZ;
 varying vec3	WorldPos;
 varying vec3	normal;
 varying vec3    Vnormal;
-varying vec4    eyePos;
 
 uniform float	SnowLevel;
 uniform float   Transitions;
@@ -36,7 +35,6 @@ vec3 fog_Func(vec3 color, int type);
 //////////////////////
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 void main()
     {
@@ -161,7 +159,6 @@ void main()
         }
 
     vec4	fragColor = diffuseColor * texel + specular;
-    fragColor.rgb += getClusteredLightsContribution(eyePos.xyz, n, texel.rgb);
 
     if(cover >= 2.5){
         fragColor.rgb = fragColor.rgb * 1.2;
diff --git a/Shaders/transition.vert b/Shaders/transition.vert
index 9325f6d51..06a9f8fb1 100644
--- a/Shaders/transition.vert
+++ b/Shaders/transition.vert
@@ -9,7 +9,6 @@
 
 varying float	RawPosZ;
 varying vec3	WorldPos;
-varying vec4    eyePos;
 varying vec3	normal;
 varying vec3	Vnormal;
 
@@ -20,7 +19,7 @@ void setupShadows(vec4 eyeSpacePos);
 void main()
     {
     RawPosZ = gl_Vertex.z;
-    eyePos = gl_ModelViewMatrix * gl_Vertex;
+    vec4 eyePos = gl_ModelViewMatrix * gl_Vertex;
 	WorldPos = (osg_ViewMatrixInverse * eyePos).xyz;
     gl_Position = ftransform();
     gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
diff --git a/Shaders/ubershader.frag b/Shaders/ubershader.frag
index 32a3b7170..d8a2f7b77 100644
--- a/Shaders/ubershader.frag
+++ b/Shaders/ubershader.frag
@@ -66,7 +66,6 @@ vec3 fog_Func(vec3 color, int type);
 ////////////////////////////////////
 
 float getShadowing();
-vec3 getClusteredLightsContribution(vec3 p, vec3 n, vec3 texel);
 
 
 //////rotation matrices/////////////////////////////////////////////////////////
@@ -263,8 +262,6 @@ void main (void)
 
 	fragColor += Specular * nmap.a;
 
-    fragColor.rgb += getClusteredLightsContribution(eyeVec, N, texel.rgb);
-
 	//////////////////////////////////////////////////////////////////////
 	// BEGIN lightmap
 	//////////////////////////////////////////////////////////////////////
diff --git a/defaults.xml b/defaults.xml
index 0d7857caf..373778f62 100644
--- a/defaults.xml
+++ b/defaults.xml
@@ -58,9 +58,6 @@ Started September 2000 by David Megginson, david@megginson.com
         <enabled type="bool" userarchive="y">false</enabled>
         <sun-atlas-size type="int" userarchive="y">2048</sun-atlas-size>
       </shadows>
-      <clustered-shading>
-        <enabled type="bool" userarchive="y">false</enabled>
-      </clustered-shading>
       <photoscenery>
         <enabled type="bool" userarchive="y">false</enabled>
       </photoscenery>