SH-2507 Shave some unused/redundant varying state and make the max texture index debug setting rebuild shaders to use no flow control when set to 1 or lower

28 files changed, 193 insertions, 66 deletions

diff --git a/indra/newview/app_settings/shaders/class1/avatar/avatarV.glsl b/indra/newview/app_settings/shaders/class1/avatar/avatarV.glsl
index cf939e2df8..2901e18db8 100644
--- a/indra/newview/app_settings/shaders/class1/avatar/avatarV.glsl
+++ b/indra/newview/app_settings/shaders/class1/avatar/avatarV.glsl
@@ -31,7 +31,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 mat4 getSkinnedTransform();
@@ -59,8 +59,6 @@ void main()
 		
 	gl_Position = projection_matrix * pos;
 	
-	fog_depth = length(pos.xyz);
-
 	calcAtmospherics(pos.xyz);
 
 	vec4 color = calcLighting(pos.xyz, norm, vec4(1,1,1,1), vec4(0,0,0,0));
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
index 15781bc92d..b09441f7eb 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
@@ -49,7 +49,7 @@ VARYING vec3 vary_fragcoord;
 VARYING vec3 vary_pointlight_col;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 uniform float near_clip;
 
@@ -135,7 +135,7 @@ void main()
 	
 	vertex_color = col;
 
-	fog_depth = pos.z;
+	
 	
 	vary_fragcoord.xyz = frag_pos.xyz + vec3(0,0,near_clip);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index 74ee082bed..93b1a114db 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -29,7 +29,7 @@ uniform mat4 modelview_matrix;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE float texture_index;
+void passTextureIndex();
 ATTRIBUTE vec3 normal;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
@@ -50,10 +50,10 @@ VARYING vec3 vary_fragcoord;
 VARYING vec3 vary_position;
 VARYING vec3 vary_light;
 VARYING vec3 vary_pointlight_col;
-VARYING float vary_texture_index;
+
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 uniform float near_clip;
 uniform float shadow_offset;
@@ -98,7 +98,7 @@ void main()
 {
 	//transform vertex
 	vec4 vert = vec4(position.xyz, 1.0);
-	vary_texture_index = texture_index;
+	passTextureIndex();
 	vec4 pos = (modelview_matrix * vert);
 	gl_Position = modelview_projection_matrix*vec4(position.xyz, 1.0);
 	
@@ -138,7 +138,7 @@ void main()
 	
 	vertex_color = col;
 
-	fog_depth = pos.z;
+	
 	
 	pos = modelview_projection_matrix * vert;
 	vary_fragcoord.xyz = pos.xyz + vec3(0,0,near_clip);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
index 12e88ca5dd..acbc3f7e15 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
@@ -48,7 +48,7 @@ VARYING vec3 vary_fragcoord;
 VARYING vec3 vary_pointlight_col;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 uniform float near_clip;
 
@@ -137,7 +137,7 @@ void main()
 	
 	vertex_color = col;
 
-	fog_depth = pos.z;
+	
 	
 	vary_fragcoord.xyz = frag_pos.xyz + vec3(0,0,near_clip);
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/diffuseNoColorV.glsl b/indra/newview/app_settings/shaders/class1/deferred/diffuseNoColorV.glsl
index 7ed41cbcb9..9461e3e32e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/diffuseNoColorV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/diffuseNoColorV.glsl
@@ -32,7 +32,7 @@ ATTRIBUTE vec3 normal;
 ATTRIBUTE vec2 texcoord0;
 
 VARYING vec3 vary_normal;
-VARYING float vary_texture_index;
+
 VARYING vec2 vary_texcoord0;
 
 void main()
diff --git a/indra/newview/app_settings/shaders/class1/deferred/diffuseV.glsl b/indra/newview/app_settings/shaders/class1/deferred/diffuseV.glsl
index 908f3abcd0..76d29b1df7 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/diffuseV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/diffuseV.glsl
@@ -28,23 +28,24 @@ uniform mat4 texture_matrix0;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE float texture_index;
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec3 normal;
 ATTRIBUTE vec2 texcoord0;
 
 VARYING vec3 vary_normal;
-VARYING float vary_texture_index;
+
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
+void passTextureIndex();
+
 void main()
 {
 	//transform vertex
 	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); 
 	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
 	
-	vary_texture_index = texture_index;
+	passTextureIndex();
 	vary_normal = normalize(normal_matrix * normal);
 
 	vertex_color = diffuse_color;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/emissiveV.glsl b/indra/newview/app_settings/shaders/class1/deferred/emissiveV.glsl
index 7b108e4562..115b04797f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/emissiveV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/emissiveV.glsl
@@ -28,7 +28,7 @@ uniform mat4 modelview_matrix;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE float texture_index;
+void passTextureIndex();
 ATTRIBUTE vec4 emissive;
 ATTRIBUTE vec2 texcoord0;
 
@@ -39,17 +39,17 @@ vec3 atmosAffectDirectionalLight(float lightIntensity);
 vec3 scaleDownLight(vec3 light);
 vec3 scaleUpLight(vec3 light);
 
-VARYING float vary_texture_index;
+
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void main()
 {
 	//transform vertex
 	vec4 vert = vec4(position.xyz, 1.0);
 	vec4 pos = (modelview_matrix * vert);
-	vary_texture_index = texture_index;
+	passTextureIndex();
 
 	gl_Position = modelview_projection_matrix*vec4(position.xyz, 1.0);
 	
@@ -59,5 +59,5 @@ void main()
 	
 	vertex_color = emissive;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
index ab638991f7..2e6982d101 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
@@ -29,7 +29,7 @@ uniform mat4 modelview_projection_matrix;
 
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE float texture_index;
+void passTextureIndex();
 ATTRIBUTE vec4 diffuse_color;
 ATTRIBUTE vec2 texcoord0;
 
@@ -40,17 +40,17 @@ vec3 atmosAffectDirectionalLight(float lightIntensity);
 vec3 scaleDownLight(vec3 light);
 vec3 scaleUpLight(vec3 light);
 
-VARYING float vary_texture_index;
+
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void main()
 {
 	//transform vertex
 	vec4 vert = vec4(position.xyz, 1.0);
 	vec4 pos = (modelview_matrix * vert);
-	vary_texture_index = texture_index;
+	passTextureIndex();
 
 	gl_Position = modelview_projection_matrix*vec4(position.xyz, 1.0);
 	
@@ -60,5 +60,5 @@ void main()
 	
 	vertex_color = diffuse_color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl b/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
index 57b3a6d001..45bd5c8b42 100644
--- a/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
@@ -24,7 +24,7 @@
  */
  
 
-VARYING float fog_depth;
+
 
 uniform vec4 waterFogColor;
 uniform float waterFogEnd;
diff --git a/indra/newview/app_settings/shaders/class1/objects/emissiveSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/emissiveSkinnedV.glsl
index 8c38d5df2a..8494ffba52 100644
--- a/indra/newview/app_settings/shaders/class1/objects/emissiveSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/emissiveSkinnedV.glsl
@@ -33,7 +33,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 mat4 getObjectSkinnedTransform();
@@ -54,5 +54,5 @@ void main()
 	
 	gl_Position = projection_matrix*vec4(pos, 1.0);
 		
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/emissiveV.glsl b/indra/newview/app_settings/shaders/class1/objects/emissiveV.glsl
index 35feacb7b1..e984deb0c8 100644
--- a/indra/newview/app_settings/shaders/class1/objects/emissiveV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/emissiveV.glsl
@@ -28,7 +28,7 @@ uniform mat4 modelview_matrix;
 uniform mat4 modelview_projection_matrix;
 
 ATTRIBUTE vec3 position;
-ATTRIBUTE float texture_index;
+void passTextureIndex();
 ATTRIBUTE vec4 emissive;
 ATTRIBUTE vec2 texcoord0;
 
@@ -37,13 +37,13 @@ VARYING vec2 vary_texcoord0;
 
 void calcAtmospherics(vec3 inPositionEye);
 
-VARYING float vary_texture_index;
-VARYING float fog_depth;
+
+
 
 void main()
 {
 	//transform vertex
-	vary_texture_index = texture_index;
+	passTextureIndex();
 	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
 	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
 	
@@ -52,5 +52,5 @@ void main()
 
 	vertex_color = emissive;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightNoColorV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightNoColorV.glsl
index f73760bfd4..5d6f14230c 100644
--- a/indra/newview/app_settings/shaders/class1/objects/fullbrightNoColorV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightNoColorV.glsl
@@ -33,7 +33,7 @@ ATTRIBUTE vec3 normal;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 
@@ -49,5 +49,5 @@ void main()
 
 	vertex_color = vec4(1,1,1,1);
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl
index 69cd858b4d..79b552ee1a 100644
--- a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinySkinnedV.glsl
@@ -35,7 +35,7 @@ ATTRIBUTE vec2 texcoord0;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 VARYING vec3 vary_texcoord1;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 mat4 getObjectSkinnedTransform();
@@ -63,5 +63,5 @@ void main()
 	
 	gl_Position = projection_matrix*vec4(pos, 1.0);
 	
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyV.glsl
index a8e640018d..8d1bbf350d 100644
--- a/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightShinyV.glsl
@@ -37,7 +37,7 @@ ATTRIBUTE vec2 texcoord0;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 VARYING vec3 vary_texcoord1;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 
@@ -59,5 +59,5 @@ void main()
 
 	vertex_color = diffuse_color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl
index 4de24fd46b..eff75435a9 100644
--- a/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightSkinnedV.glsl
@@ -35,7 +35,7 @@ mat4 getObjectSkinnedTransform();
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void main()
 {
@@ -53,5 +53,5 @@ void main()
 	
 	gl_Position = projection_matrix*vec4(pos, 1.0);
 		
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/fullbrightV.glsl b/indra/newview/app_settings/shaders/class1/objects/fullbrightV.glsl
index 7286e5e2f4..8b20c2a860 100644
--- a/indra/newview/app_settings/shaders/class1/objects/fullbrightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/fullbrightV.glsl
@@ -33,7 +33,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 
@@ -50,5 +50,5 @@ void main()
 
 	vertex_color = diffuse_color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/indexedTextureV.glsl b/indra/newview/app_settings/shaders/class1/objects/indexedTextureV.glsl
new file mode 100644
index 0000000000..a95c9e0ab9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/indexedTextureV.glsl
@@ -0,0 +1,34 @@
+/** 
+ * @file indexedTextureV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+ATTRIBUTE float texture_index;
+
+VARYING float vary_texture_index;
+
+void passTextureIndex()
+{
+	vary_texture_index = texture_index;
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/objects/nonindexedTextureV.glsl b/indra/newview/app_settings/shaders/class1/objects/nonindexedTextureV.glsl
new file mode 100644
index 0000000000..2839171044
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/nonindexedTextureV.glsl
@@ -0,0 +1,30 @@
+/** 
+ * @file nonindexedTextureV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+void passTextureIndex()
+{
+
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/objects/previewV.glsl b/indra/newview/app_settings/shaders/class1/objects/previewV.glsl
index 282686a9b0..5dcfa87066 100644
--- a/indra/newview/app_settings/shaders/class1/objects/previewV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/previewV.glsl
@@ -34,7 +34,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
@@ -53,5 +53,5 @@ void main()
 	vec4 color = calcLighting(pos.xyz, norm, vec4(1,1,1,1), vec4(0.));
 	vertex_color = color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/shinyV.glsl b/indra/newview/app_settings/shaders/class1/objects/shinyV.glsl
index 86a78b190c..4ca53a8f30 100644
--- a/indra/newview/app_settings/shaders/class1/objects/shinyV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/shinyV.glsl
@@ -35,7 +35,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec3 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void calcAtmospherics(vec3 inPositionEye);
 
@@ -57,6 +57,6 @@ void main()
 	
 	vary_texcoord0 = (texture_matrix0*vec4(ref,1.0)).xyz;
 	
-	fog_depth = pos.z;
+	
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleNoColorV.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleNoColorV.glsl
index 45a493e4f2..706627e175 100644
--- a/indra/newview/app_settings/shaders/class1/objects/simpleNoColorV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleNoColorV.glsl
@@ -34,7 +34,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
@@ -53,5 +53,5 @@ void main()
 	vec4 color = calcLighting(pos.xyz, norm, vec4(1,1,1,1), vec4(0.));
 	vertex_color = color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl
index aea0e25e60..1c6e53b187 100644
--- a/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleSkinnedV.glsl
@@ -33,7 +33,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
@@ -61,5 +61,5 @@ void main()
 	
 	gl_Position = projection_matrix*vec4(pos, 1.0);
 	
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleV.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleV.glsl
index 4b6b219751..df9111f941 100644
--- a/indra/newview/app_settings/shaders/class1/objects/simpleV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleV.glsl
@@ -35,7 +35,7 @@ ATTRIBUTE vec2 texcoord0;
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
 void calcAtmospherics(vec3 inPositionEye);
@@ -53,6 +53,4 @@ void main()
 
 	vec4 color = calcLighting(pos.xyz, norm, diffuse_color, vec4(0.));
 	vertex_color = color;
-
-	fog_depth = pos.z;
 }
diff --git a/indra/newview/app_settings/shaders/class1/objects/treeV.glsl b/indra/newview/app_settings/shaders/class1/objects/treeV.glsl
index 250d99a9c7..fa01a27ec0 100644
--- a/indra/newview/app_settings/shaders/class1/objects/treeV.glsl
+++ b/indra/newview/app_settings/shaders/class1/objects/treeV.glsl
@@ -37,7 +37,7 @@ void calcAtmospherics(vec3 inPositionEye);
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
-VARYING float fog_depth;
+
 
 void main()
 {
@@ -56,5 +56,5 @@ void main()
 	vec4 color = calcLighting(pos.xyz, norm, vec4(1,1,1,1), vec4(0.));
 	vertex_color = color;
 
-	fog_depth = pos.z;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
index 2e41360150..8bdae328bd 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl
@@ -24,10 +24,7 @@
  */
  
 
-
-VARYING vec3 vary_PositionEye;
-
 vec3 getPositionEye()
 {
-	return vary_PositionEye;
+	return vec3(0,0,0);
 }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
index 42f8646f2d..8ec9ae617c 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl
@@ -25,15 +25,12 @@
  
 
 
-VARYING vec3 vary_PositionEye;
-
-
 vec3 getPositionEye()
 {
-	return vary_PositionEye;
+	return vec3(0,0,0);
 }
 
 void setPositionEye(vec3 v)
 {
-	vary_PositionEye = v;
+	
 }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl
new file mode 100644
index 0000000000..636d4af006
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl
@@ -0,0 +1,33 @@
+/** 
+ * @file atmosphericVarsWaterF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+ 
+
+VARYING vec3 vary_PositionEye;
+
+vec3 getPositionEye()
+{
+	return vary_PositionEye;
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl
new file mode 100644
index 0000000000..ef34c5c853
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl
@@ -0,0 +1,39 @@
+/** 
+ * @file atmosphericVarsWaterV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+ 
+ 
+VARYING vec3 vary_PositionEye;
+VARYING float fog_depth;
+
+vec3 getPositionEye()
+{
+	return vary_PositionEye;
+}
+
+void setPositionEye(vec3 v)
+{
+	vary_PositionEye = v;
+	fog_depth = v.z;
+}