Add new shaders for generating shadows from clouds.

Add new class3 shadow shaders for VSM shadows.

Add disabled shadow pass in WLSky for using above.

15 files changed, 937 insertions, 447 deletions

diff --git a/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowF.glsl
new file mode 100644
index 0000000000..d973326f93
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowF.glsl
@@ -0,0 +1,44 @@
+/** 
+ * @file avatarShadowF.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
+ * $/LicenseInfo$
+ */
+
+/*[EXTRA_CODE_HERE]*/
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2D diffuseMap;
+
+VARYING vec4 pos;
+VARYING vec2 vary_texcoord0;
+
+vec4 computeMoments(float depth, float a);
+
+void main() 
+{
+    frag_color = computeMoments(length(pos), 1.0);
+}
+
diff --git a/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl
new file mode 100644
index 0000000000..3be9cb3de8
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/attachmentShadowV.glsl
@@ -0,0 +1,51 @@
+/** 
+ * @file attachmentShadowV.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
+ * $/LicenseInfo$
+ */
+
+uniform mat4 projection_matrix;
+uniform mat4 modelview_matrix;
+uniform mat4 texture_matrix0;
+
+ATTRIBUTE vec3 position;
+ATTRIBUTE vec2 texcoord0;
+
+mat4 getObjectSkinnedTransform();
+
+VARYING vec4 pos;
+
+void main()
+{
+	//transform vertex
+	mat4 mat = getObjectSkinnedTransform();
+	
+	mat = modelview_matrix * mat;
+	pos = (mat*vec4(position.xyz, 1.0));
+	pos = projection_matrix * vec4(pos.xyz, 1.0);
+
+#if !DEPTH_CLAMP
+	pos.z = max(pos.z, -pos.w+0.01);
+	gl_Position = pos;
+#else
+	gl_Position = pos;
+#endif
+}
diff --git a/indra/newview/app_settings/shaders/class3/windlight/gammaF.glsl b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl
index a7d76052bb..f4e5a61e36 100644
--- a/indra/newview/app_settings/shaders/class3/windlight/gammaF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowF.glsl
@@ -1,5 +1,5 @@
 /** 
- * @file gammaF.glsl
+ * @file avatarShadowF.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
@@ -22,33 +22,31 @@
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
- 
 
+/*[EXTRA_CODE_HERE]*/ 
 
-uniform vec4 gamma;
-uniform int no_atmo;
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
 
-vec3 scaleSoftClipFrag(vec3 light) {
-    if (no_atmo == 1)
-    {
-        return light;
-    }
-	light = 1. - clamp(light, vec3(0.), vec3(1.));
-	light = 1. - pow(light, gamma.xxx);
-	return light;
-}
+uniform sampler2D diffuseMap;
 
-/// Soft clips the light with a gamma correction
-vec3 scaleSoftClip(vec3 light) {
-	return scaleSoftClipFrag(light);
-}
+#if !DEPTH_CLAMP
+VARYING vec4 post_pos;
+#endif
+
+VARYING vec4 pos;
 
-vec3 fullbrightScaleSoftClipFrag(vec3 light, vec3 add, vec3 atten)
+vec4 computeMoments(float depth, float a);
+
+void main() 
 {
-	return scaleSoftClipFrag(light.rgb);
-}
+    frag_color = computeMoments(length(pos), 1.0);
 
-vec3 fullbrightScaleSoftClip(vec3 light) {
-	return fullbrightScaleSoftClipFrag(light.rgb);
+#if !DEPTH_CLAMP
+	gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0);
+#endif
 }
 
diff --git a/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl
new file mode 100644
index 0000000000..96ca2fd707
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/avatarShadowV.glsl
@@ -0,0 +1,68 @@
+/** 
+ * @file avatarShadowV.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
+ * $/LicenseInfo$
+ */
+ 
+uniform mat4 projection_matrix;
+
+mat4 getSkinnedTransform();
+
+ATTRIBUTE vec3 position;
+ATTRIBUTE vec3 normal;
+ATTRIBUTE vec2 texcoord0;
+
+#if !DEPTH_CLAMP
+VARYING vec4 post_pos;
+#endif
+
+VARYING vec4 pos;
+
+void main()
+{
+	vec3 norm;
+	
+	vec4 pos_in = vec4(position.xyz, 1.0);
+	mat4 trans = getSkinnedTransform();
+
+	pos.x = dot(trans[0], pos_in);
+	pos.y = dot(trans[1], pos_in);
+	pos.z = dot(trans[2], pos_in);
+	pos.w = 1.0;
+	
+	norm.x = dot(trans[0].xyz, normal);
+	norm.y = dot(trans[1].xyz, normal);
+	norm.z = dot(trans[2].xyz, normal);
+	norm = normalize(norm);
+	
+	pos = projection_matrix * pos;
+
+#if !DEPTH_CLAMP
+	post_pos = pos;
+	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
+#else
+	gl_Position = pos;
+#endif
+
+}
+
+
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudShadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowF.glsl
new file mode 100644
index 0000000000..65af2821be
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowF.glsl
@@ -0,0 +1,114 @@
+/** 
+ * @file class3/deferred/cloudsF.glsl
+ *
+ * $LicenseInfo:firstyear=2005&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2005, 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
+ * $/LicenseInfo$
+ */
+ 
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform sampler2D diffuseMap;
+
+VARYING vec4 pos;
+VARYING float target_pos_x;
+VARYING float vary_CloudDensity;
+VARYING vec2 vary_texcoord0;
+VARYING vec2 vary_texcoord1;
+VARYING vec2 vary_texcoord2;
+VARYING vec2 vary_texcoord3;
+
+uniform sampler2D cloud_noise_texture;
+uniform sampler2D cloud_noise_texture_next;
+uniform float blend_factor;
+uniform vec4 cloud_pos_density1;
+uniform vec4 cloud_pos_density2;
+uniform vec4 sunlight_color;
+uniform vec4 cloud_color;
+uniform float cloud_shadow;
+uniform float cloud_scale;
+uniform float cloud_variance;
+uniform vec3 ambient;
+uniform vec3 camPosLocal;
+uniform vec3 sun_dir;
+uniform float sun_size;
+uniform float far_z;
+
+vec4 cloudNoise(vec2 uv)
+{
+   vec4 a = texture2D(cloud_noise_texture, uv);
+   vec4 b = texture2D(cloud_noise_texture_next, uv);
+   vec4 cloud_noise_sample = mix(a, b, blend_factor);
+   return normalize(cloud_noise_sample);
+}
+
+vec4 computeMoments(float depth, float alpha);
+
+void main()
+{
+	// Set variables
+	vec2 uv1 = vary_texcoord0.xy;
+	vec2 uv2 = vary_texcoord1.xy;
+	vec2 uv3 = vary_texcoord2.xy;
+	float cloudDensity = 2.0 * (cloud_shadow - 0.25);
+
+	vec2 uv4 = vary_texcoord3.xy;
+
+    vec2 disturbance  = vec2(cloudNoise(uv1 / 8.0f).x, cloudNoise((uv3 + uv1) / 16.0f).x) * cloud_variance * (1.0f - cloud_scale * 0.25f);
+    vec2 disturbance2 = vec2(cloudNoise((uv1 + uv3) / 4.0f).x, cloudNoise((uv4 + uv2) / 8.0f).x) * cloud_variance * (1.0f - cloud_scale * 0.25f);
+
+	// Offset texture coords
+	uv1 += cloud_pos_density1.xy + (disturbance * 0.02);	//large texture, visible density
+	uv2 += cloud_pos_density1.xy;	//large texture, self shadow
+	uv3 += cloud_pos_density2.xy;	//small texture, visible density
+	uv4 += cloud_pos_density2.xy;	//small texture, self shadow
+
+    float density_variance = min(1.0, (disturbance.x* 2.0 + disturbance.y* 2.0 + disturbance2.x + disturbance2.y));
+
+    cloudDensity *= 1.0 - (density_variance * density_variance);
+
+	// Compute alpha1, the main cloud opacity
+	float alpha1 = (cloudNoise(uv1).x - 0.5) + (cloudNoise(uv3).x - 0.5) * cloud_pos_density2.z;
+	alpha1 = min(max(alpha1 + cloudDensity, 0.) * 10 * cloud_pos_density1.z, 1.);
+
+	// And smooth
+	alpha1 = 1. - alpha1 * alpha1;
+	alpha1 = 1. - alpha1 * alpha1;	
+
+    if (alpha1 < 0.001f)
+    {
+        discard;
+    }
+
+	// Compute alpha2, for self shadowing effect
+	// (1 - alpha2) will later be used as percentage of incoming sunlight
+	float alpha2 = (cloudNoise(uv2).x - 0.5);
+	alpha2 = min(max(alpha2 + cloudDensity, 0.) * 2.5 * cloud_pos_density1.z, 1.);
+
+	// And smooth
+	alpha2 = 1. - alpha2;
+	alpha2 = 1. - alpha2 * alpha2;	
+
+    frag_color = computeMoments(length(pos), alpha1);
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl
new file mode 100644
index 0000000000..cb27b2c2c5
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/cloudShadowV.glsl
@@ -0,0 +1,63 @@
+/** 
+ * @file cloudShadowV.glsl
+ *
+ * $LicenseInfo:firstyear=2011&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2011, 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
+ * $/LicenseInfo$
+ */
+
+uniform mat4 texture_matrix0;
+uniform mat4 modelview_projection_matrix;
+uniform float shadow_target_width;
+
+ATTRIBUTE vec3 position;
+ATTRIBUTE vec4 diffuse_color;
+ATTRIBUTE vec2 texcoord0;
+
+#if !DEPTH_CLAMP
+VARYING float pos_zd2;
+#endif
+
+VARYING vec4 pos;
+VARYING float target_pos_x;
+VARYING vec2 vary_texcoord0;
+VARYING vec4 vertex_color;
+
+void passTextureIndex();
+
+void main()
+{
+	//transform vertex
+	vec4 pre_pos = vec4(position.xyz, 1.0);
+	pos = modelview_projection_matrix * pre_pos;
+	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
+
+#if !DEPTH_CLAMP
+	pos_zd2 = pos.z * 0.5;
+	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
+#else
+	gl_Position = pos;
+#endif
+	
+	passTextureIndex();
+
+	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
+	vertex_color = diffuse_color;
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
index f8373215f0..015caad749 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
@@ -138,9 +138,23 @@ void main()
 	// Combine
 	vec4 color;
 
+    vec4 l1tap = vec4(1.0/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265));
+
+    vec4 l1r = texture2D(sh_input_r, vec2(0,0));
+    vec4 l1g = texture2D(sh_input_g, vec2(0,0));
+    vec4 l1b = texture2D(sh_input_b, vec2(0,0));
+
+    vec3 sun_indir = vec3(-view_direction.xy, view_direction.z);
+    vec3 amb = vec3(dot(l1r, l1tap * vec4(1, sun_indir)),
+                    dot(l1g, l1tap * vec4(1, sun_indir)),
+                    dot(l1b, l1tap * vec4(1, sun_indir)));
+
+
+    amb = max(vec3(0), amb);
+
     color.rgb = sun_color * cloud_color.rgb * (1. - alpha2);
     color.rgb = pow(color.rgb, vec3(1.0 / 2.2));
-    color.rgb += ambient;
+    color.rgb += amb;
 
 	frag_data[0] = vec4(color.rgb, alpha1);
 	frag_data[1] = vec4(0);
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
index ed06e5a6ac..9411e905d3 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
@@ -76,11 +76,7 @@ vec3 GetSunAndSkyIrradiance(vec3 camPos, vec3 norm, vec3 dir, out vec3 sky_irrad
 vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 dir, out vec3 transmittance);
 vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 dir, out vec3 transmittance);
 
-vec3 scaleSoftClipFrag(vec3 c);
-vec3 srgb_to_linear(vec3 cs);
-vec3 linear_to_srgb(vec3 cl);
-vec3 decode_normal (vec2 enc);
-
+vec3 decode_normal(vec2 xy);
 vec3 ColorFromRadiance(vec3 radiance);
 vec4 getPositionWithDepth(vec2 pos_screen, float depth);
 vec4 getPosition(vec2 pos_screen);
@@ -92,32 +88,31 @@ vec4 applyWaterFogView(vec3 pos, vec4 color);
 
 void main() 
 {
-	vec2 tc = vary_fragcoord.xy;
-	float depth = texture2DRect(depthMap, tc.xy).r;
-	vec3 pos = getPositionWithDepth(tc, depth).xyz;
-	vec4 norm = texture2DRect(normalMap, tc);
-	float envIntensity = norm.z;
+    vec2 tc = vary_fragcoord.xy;
+    float depth = texture2DRect(depthMap, tc.xy).r;
+    vec3 pos = getPositionWithDepth(tc, depth).xyz;
+    vec4 norm = texture2DRect(normalMap, tc);
+    float envIntensity = norm.z;
     norm.xyz = decode_normal(norm.xy);
 
-	float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
-
-	float light_gamma = 1.0/1.3;
+    float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
+              da = pow(da, global_gamma + 0.3);
 
-	vec4 diffuse = texture2DRect(diffuseRect, tc); // linear
+    vec4 diffuse = texture2DRect(diffuseRect, tc); // linear
 
-	vec3 col;
-	float bloom = 0.0;
-	{
+    vec3 col;
+    float bloom = 0.0;
+    {
         vec3 camPos = (camPosLocal / 1000.0f) + vec3(0, 0, 6360.0f);
 
-		vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
-		
-		vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
-		scol_ambocc = pow(scol_ambocc, vec2(light_gamma));
+        vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
+        
+        vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
+//        scol_ambocc = pow(scol_ambocc, vec3(global_gamma + 0.3));
 
-		float scol = max(scol_ambocc.r, diffuse.a); 
+        float scol = max(scol_ambocc.r, diffuse.a); 
 
-		float ambocc = scol_ambocc.g;
+        float ambocc = scol_ambocc.g;
 
         vec4 l1tap = vec4(1.0/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265));
         vec4 l1r = texture2D(sh_input_r, vec2(0,0));
@@ -142,46 +137,44 @@ void main()
         col *= transmittance;
         col *= diffuse.rgb;
 
-		vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
-
-		if (spec.a > 0.0) // specular reflection
-		{
-			// the old infinite-sky shiny reflection
-			//
-			float sa = dot(refnormpersp, sun_dir.xyz);
-			vec3 dumbshiny = scol * texture2D(lightFunc, vec2(sa, spec.a)).r * atmo_color;
-			
-			// add the two types of shiny together
-			vec3 spec_contrib = dumbshiny * spec.rgb;
-			bloom = dot(spec_contrib, spec_contrib) / 6;
-			col += spec_contrib;
-		}
-
-		col = mix(col, diffuse.rgb, diffuse.a);
-
-		if (envIntensity > 0.0)
-		{ //add environmentmap
-			vec3 env_vec = env_mat * refnormpersp;
+        vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+
+        if (spec.a > 0.0) // specular reflection
+        {
+            // the old infinite-sky shiny reflection
+            //
+            float sa = dot(refnormpersp, sun_dir.xyz);
+            vec3 dumbshiny = scol * texture2D(lightFunc, vec2(sa, spec.a)).r * atmo_color;
+            
+            // add the two types of shiny together
+            vec3 spec_contrib = dumbshiny * spec.rgb;
+            bloom = dot(spec_contrib, spec_contrib) / 6;
+            col += spec_contrib;
+        }
+
+        col = mix(col, diffuse.rgb, diffuse.a);
+
+        if (envIntensity > 0.0)
+        { //add environmentmap
+            vec3 env_vec = env_mat * refnormpersp;
             vec3 sun_direction  = (inv_modelview * vec4(sun_dir, 1.0)).xyz;
             vec3 radiance_sun  = GetSkyLuminance(camPos, env_vec, 0.0f, sun_direction, transmittance);
             vec3 refcol = ColorFromRadiance(radiance_sun);
-			col = mix(col.rgb, refcol, envIntensity);
-		}
-						
-		/*if (norm.w < 0.5)
-		{
-			col = scaleSoftClipFrag(col);
-		}*/
-
-		#ifdef WATER_FOG
-			vec4 fogged = applyWaterFogView(pos,vec4(col, bloom));
-			col = fogged.rgb;
-			bloom = fogged.a;
-		#endif
-
-        col = pow(col, vec3(light_gamma));
-	}
-	
-	frag_color.rgb = col;
-	frag_color.a = bloom;
+            col = mix(col.rgb, refcol, envIntensity);
+        }
+                        
+        /*if (norm.w < 0.5)
+        {
+            col = scaleSoftClipFrag(col);
+        }*/
+
+        #ifdef WATER_FOG
+            vec4 fogged = applyWaterFogView(pos,vec4(col, bloom));
+            col = fogged.rgb;
+            bloom = fogged.a;
+        #endif
+    }
+    
+    frag_color.rgb = col;
+    frag_color.a = bloom;
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl
index 894534b105..e230ebb71c 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/sunLightF.glsl
@@ -1,5 +1,5 @@
 /** 
- * @file sunLightF.glsl
+ * @file class3\deferred\sunLightF.glsl
  *
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
@@ -35,197 +35,24 @@ out vec4 frag_color;
 
 //class 2, shadows, no SSAO
 
-uniform sampler2DRect depthMap;
-uniform sampler2DRect normalMap;
-uniform sampler2DShadow shadowMap0;
-uniform sampler2DShadow shadowMap1;
-uniform sampler2DShadow shadowMap2;
-uniform sampler2DShadow shadowMap3;
-uniform sampler2DShadow shadowMap4;
-uniform sampler2DShadow shadowMap5;
-
-
 // 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;
 
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-uniform vec2 proj_shadow_res;
-uniform vec3 sun_dir;
-
-uniform vec2 shadow_res;
-uniform float shadow_bias;
-uniform float shadow_offset;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
 vec3 decode_normal (vec2 enc);
 vec4 getPosition(vec2 pos_screen);
 vec3 getNorm(vec2 pos_screen);
 
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
-{
-	stc.xyz /= stc.w;
-	stc.z += shadow_bias;
-
-	stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x; // add some jitter to X sample pos according to Y to disguise the snapping going on here
-	float cs = shadow2D(shadowMap, stc.xyz).x;
-
-	float shadow = cs;
-
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
-
-			
-    return shadow*0.2;
-}
-
-float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
-{
-	stc.xyz /= stc.w;
-	stc.z += spot_shadow_bias*scl;
-	stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap
-
-	float cs = shadow2D(shadowMap, stc.xyz).x;
-	float shadow = cs;
-
-	vec2 off = 1.0/proj_shadow_res;
-	off.y *= 1.5;
-	
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x;
-
-        return shadow*0.2;
-}
+float sampleDirectionalShadow(vec3 pos, vec3 norm, vec2 pos_screen); 
+float sampleSpotShadow(vec3 pos, vec3 norm, int index, vec2 pos_screen); 
 
 void main() 
 {
 	vec2 pos_screen = vary_fragcoord.xy;
 	vec4 pos = getPosition(pos_screen);
 	vec3 norm = getNorm(pos_screen);
-		
-	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
-	{
-		frag_color = vec4(0.0); // doesn't matter
-		return;
-	}*/
-	
-	float shadow = 0.0;
-	float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz));
-	
-	vec3 shadow_pos = pos.xyz;
-	vec3 offset = sun_dir.xyz * (1.0-dp_directional_light);
-	
-	vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
-	
-	if (spos.z > -shadow_clip.w)
-	{	
-		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
-		{
-			vec4 lpos;
-			
-			vec4 near_split = shadow_clip*-0.75;
-			vec4 far_split = shadow_clip*-1.25;
-			vec4 transition_domain = near_split-far_split;
-			float weight = 0.0;
-
-			if (spos.z < near_split.z)
-			{
-				lpos = shadow_matrix[3]*spos;
-				
-				float w = 1.0;
-				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w;
-				weight += w;
-				shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
-			}
-
-			if (spos.z < near_split.y && spos.z > far_split.z)
-			{
-				lpos = shadow_matrix[2]*spos;
-				
-				float w = 1.0;
-				w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
-				w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w;
-				weight += w;
-			}
-
-			if (spos.z < near_split.x && spos.z > far_split.y)
-			{
-				lpos = shadow_matrix[1]*spos;
-
-				float w = 1.0;
-				w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
-				w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
-				shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w;
-				weight += w;
-			}
-
-			if (spos.z > far_split.x)
-			{
-				lpos = shadow_matrix[0]*spos;
-				
-				float w = 1.0;
-				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
-				
-				shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w;
-				weight += w;
-			}
-		
-
-			shadow /= weight;
-
-			// 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);
-			
-			//lpos.xy /= lpos.w*32.0;
-			//if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1)
-			//{
-			//	shadow = 0.0;
-			//}
-			
-		}
-	}
-	else
-	{
-		// more distant than the shadow map covers
-		shadow = 1.0;
-	}
-	
-	frag_color[0] = shadow;
-	frag_color[1] = 1.0;
-	
-	spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0);
-	
-	//spotlight shadow 1
-	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen); 
-	
-	//spotlight shadow 2
-	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen); 
 
-	//frag_color.rgb = pos.xyz;
-	//frag_color.b = shadow;
+	frag_color.r = sampleDirectionalShadow(pos.xyz, norm, pos_screen);
+	frag_color.g = 1.0f;
+    frag_color.b = sampleSpotShadow(pos.xyz, norm, 0, pos_screen);
+    frag_color.a = sampleSpotShadow(pos.xyz, norm, 1, pos_screen);
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl
index 0870a80a32..342a2ff3ed 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/sunLightSSAOF.glsl
@@ -1,5 +1,5 @@
 /** 
- * @file sunLightSSAOF.glsl
+ * @file class3\deferred\sunLightSSAOF.glsl
  * $LicenseInfo:firstyear=2007&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2007, Linden Research, Inc.
@@ -34,200 +34,28 @@ out vec4 frag_color;
 
 //class 2 -- shadows and SSAO
 
-uniform sampler2DRect depthMap;
-uniform sampler2DRect normalMap;
-uniform sampler2DShadow shadowMap0;
-uniform sampler2DShadow shadowMap1;
-uniform sampler2DShadow shadowMap2;
-uniform sampler2DShadow shadowMap3;
-uniform sampler2DShadow shadowMap4;
-uniform sampler2DShadow shadowMap5;
-uniform sampler2D noiseMap;
-
-
 // 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;
 
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-uniform vec2 proj_shadow_res;
 uniform vec3 sun_dir;
 
-uniform vec2 shadow_res;
-
-uniform float shadow_bias;
-uniform float shadow_offset;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
 vec4 getPosition(vec2 pos_screen);
 vec3 getNorm(vec2 pos_screen);
 
-//calculate decreases in ambient lighting when crowded out (SSAO)
-float calcAmbientOcclusion(vec4 pos, vec3 norm, pos_screen);
-
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
-{
-	stc.xyz /= stc.w;
-	stc.z += shadow_bias;
+float sampleDirectionalShadow(vec3 pos, vec3 norm, vec2 pos_screen);
+float sampleSpotShadow(vec3 pos, vec3 norm, int index, vec2 pos_screen);
 
-	stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x;
-	float cs = shadow2D(shadowMap, stc.xyz).x;
-	
-	float shadow = cs;
-	
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
-    shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
-    shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
-    shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
-	         
-        return shadow*0.2;
-}
-
-float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
-{
-	stc.xyz /= stc.w;
-	stc.z += spot_shadow_bias*scl;
-	stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap
-		
-	float cs = shadow2D(shadowMap, stc.xyz).x;
-	float shadow = cs;
-
-	vec2 off = 1.0/proj_shadow_res;
-	off.y *= 1.5;
-	
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x;
-	shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x;
-
-        return shadow*0.2;
-}
+//calculate decreases in ambient lighting when crowded out (SSAO)
+float calcAmbientOcclusion(vec4 pos, vec3 norm, vec2 pos_screen);
 
 void main() 
 {
-	vec2 pos_screen = vary_fragcoord.xy;	
+	vec2 pos_screen = vary_fragcoord.xy;
 	vec4 pos        = getPosition(pos_screen);
 	vec3 norm       = getNorm(pos_screen);
-		
-	/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
-	{
-		frag_color = vec4(0.0); // doesn't matter
-		return;
-	}*/
-	
-	float shadow = 0.0;
-	float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz));
-	
-	vec3 shadow_pos = pos.xyz;
-	vec3 offset = sun_dir.xyz * (1.0-dp_directional_light);
-	
-	vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
-	
-	if (spos.z > -shadow_clip.w)
-	{	
-		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
-		{
-			vec4 lpos;
-
-			vec4 near_split = shadow_clip*-0.75;
-			vec4 far_split = shadow_clip*-1.25;
-			vec4 transition_domain = near_split-far_split;
-			float weight = 0.0;
-
-			if (spos.z < near_split.z)
-			{
-				lpos = shadow_matrix[3]*spos;
-				
-				float w = 1.0;
-				w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w;
-				weight += w;
-				shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
-			}
-
-			if (spos.z < near_split.y && spos.z > far_split.z)
-			{
-				lpos = shadow_matrix[2]*spos;
-				
-				float w = 1.0;
-				w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
-				w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
-				shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w;
-				weight += w;
-			}
-
-			if (spos.z < near_split.x && spos.z > far_split.y)
-			{
-				lpos = shadow_matrix[1]*spos;
-				
-				float w = 1.0;
-				w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
-				w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
-				shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w;
-				weight += w;
-			}
-
-			if (spos.z > far_split.x)
-			{
-				lpos = shadow_matrix[0]*spos;
-								
-				float w = 1.0;
-				w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
-				
-				shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w;
-				weight += w;
-			}
-		
-
-			shadow /= weight;
-
-			// 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);
-			
-			//lpos.xy /= lpos.w*32.0;
-			//if (fract(lpos.x) < 0.1 || fract(lpos.y) < 0.1)
-			//{
-			//	shadow = 0.0;
-			//}
-			
-		}
-	}
-	else
-	{
-		// more distant than the shadow map covers
-		shadow = 1.0;
-	}
-	
-	frag_color[0] = shadow;
-	frag_color[1] = calcAmbientOcclusion(pos, norm, pos_screen);
-	
-	spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0);
-	
-	//spotlight shadow 1
-	vec4 lpos = shadow_matrix[4]*spos;
-	frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen);
-	
-	//spotlight shadow 2
-	lpos = shadow_matrix[5]*spos;
-	frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen);
 
-	//frag_color.rgb = pos.xyz;
-	//frag_color.b = shadow;
+	frag_color.r = sampleDirectionalShadow(pos.xyz, norm, pos_screen);
+    frag_color.b = calcAmbientOcclusion(pos, norm, pos_screen);
+    frag_color.b = sampleSpotShadow(pos.xyz, norm, 0, pos_screen);
+    frag_color.a = sampleSpotShadow(pos.xyz, norm, 1, pos_screen);
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl b/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl
new file mode 100644
index 0000000000..693af31bf2
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/treeShadowF.glsl
@@ -0,0 +1,59 @@
+/** 
+ * @file treeShadowF.glsl
+ *
+ * $LicenseInfo:firstyear=2005&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2005, 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
+ * $/LicenseInfo$
+ */
+
+/*[EXTRA_CODE_HERE]*/
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_color;
+#else
+#define frag_color gl_FragColor
+#endif
+
+uniform float minimum_alpha;
+
+uniform sampler2D diffuseMap;
+
+VARYING vec4 pos;
+VARYING vec2 vary_texcoord0;
+
+vec4 computeMoments(float d, float a);
+
+void main() 
+{
+	float alpha = texture2D(diffuseMap, vary_texcoord0.xy).a;
+
+	if (alpha < minimum_alpha)
+	{
+		discard;
+	}
+
+    frag_color = computeMoments(length(pos), 1.0);
+
+#if !DEPTH_CLAMP
+	gl_FragDepth = max(pos.z/pos.w*0.5+0.5, 0.0);
+#endif
+
+}
+
diff --git a/indra/newview/app_settings/shaders/class3/deferred/treeShadowV.glsl b/indra/newview/app_settings/shaders/class3/deferred/treeShadowV.glsl
new file mode 100644
index 0000000000..15e769ac10
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/treeShadowV.glsl
@@ -0,0 +1,43 @@
+/** 
+ * @file treeShadowV.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
+ * $/LicenseInfo$
+ */
+
+uniform mat4 texture_matrix0;
+uniform mat4 modelview_projection_matrix;
+ 
+ATTRIBUTE vec3 position;
+ATTRIBUTE vec2 texcoord0;
+
+VARYING vec4 pos;
+VARYING vec2 vary_texcoord0;
+
+void main()
+{
+	//transform vertex
+	pos = modelview_projection_matrix*vec4(position.xyz, 1.0);
+
+	gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w);
+	
+	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/underWaterF.glsl b/indra/newview/app_settings/shaders/class3/deferred/underWaterF.glsl
new file mode 100644
index 0000000000..9d18d1afd8
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/underWaterF.glsl
@@ -0,0 +1,118 @@
+/**
+ * @file underWaterF.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
+ * $/LicenseInfo$
+ */
+ 
+/*[EXTRA_CODE_HERE]*/
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_data[3];
+#else
+#define frag_data gl_FragData
+#endif
+
+uniform sampler2D diffuseMap;
+uniform sampler2D bumpMap;   
+uniform sampler2D screenTex;
+uniform sampler2D refTex;
+uniform sampler2D screenDepth;
+
+uniform vec4 fogCol;
+uniform vec3 lightDir;
+uniform vec3 specular;
+uniform float lightExp;
+uniform vec2 fbScale;
+uniform float refScale;
+uniform float znear;
+uniform float zfar;
+uniform float kd;
+uniform vec4 waterPlane;
+uniform vec3 eyeVec;
+uniform vec4 waterFogColor;
+uniform float waterFogDensity;
+uniform float waterFogKS;
+uniform vec2 screenRes;
+
+//bigWave is (refCoord.w, view.w);
+VARYING vec4 refCoord;
+VARYING vec4 littleWave;
+VARYING vec4 view;
+
+vec3 srgb_to_linear(vec3 cs);
+vec3 linear_to_srgb(vec3 cl);
+
+vec2 encode_normal(vec3 n);
+
+vec4 applyWaterFog(vec4 color, vec3 viewVec)
+{
+	//normalize view vector
+	vec3 view = normalize(viewVec);
+	float es = -view.z;
+
+	//find intersection point with water plane and eye vector
+	
+	//get eye depth
+	float e0 = max(-waterPlane.w, 0.0);
+	
+	//get object depth
+	float depth = length(viewVec);
+		
+	//get "thickness" of water
+	float l = max(depth, 0.1);
+
+	float kd = waterFogDensity;
+	float ks = waterFogKS;
+	vec4 kc = waterFogColor;
+	
+	float F = 0.98;
+	
+	float t1 = -kd * pow(F, ks * e0);
+	float t2 = kd + ks * es;
+	float t3 = pow(F, t2*l) - 1.0;
+	
+	float L = min(t1/t2*t3, 1.0);
+	
+	float D = pow(0.98, l*kd);
+	return color * D + kc * L;
+}
+
+void main() 
+{
+	vec4 color;
+	    
+	//get detail normals
+	vec3 wave1 = texture2D(bumpMap, vec2(refCoord.w, view.w)).xyz*2.0-1.0;
+	vec3 wave2 = texture2D(bumpMap, littleWave.xy).xyz*2.0-1.0;
+	vec3 wave3 = texture2D(bumpMap, littleWave.zw).xyz*2.0-1.0;    
+	vec3 wavef = normalize(wave1+wave2+wave3);
+	
+	//figure out distortion vector (ripply)   
+	vec2 distort = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
+	distort = distort+wavef.xy*refScale;
+		
+	vec4 fb = texture2D(screenTex, distort);
+
+	frag_data[0] = vec4(fb.rgb, 1.0); // diffuse
+	frag_data[1] = vec4(0.5,0.5,0.5, 0.95); // speccolor*spec, spec
+	frag_data[2] = vec4(encode_normal(wavef), 0.0, 0.0); // normalxyz, displace
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterF.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterF.glsl
new file mode 100644
index 0000000000..2a144ba23a
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterF.glsl
@@ -0,0 +1,175 @@
+/** 
+ * @file waterF.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
+ * $/LicenseInfo$
+ */
+ 
+#extension GL_ARB_texture_rectangle : enable
+
+/*[EXTRA_CODE_HERE]*/
+
+#ifdef DEFINE_GL_FRAGCOLOR
+out vec4 frag_data[3];
+#else
+#define frag_data gl_FragData
+#endif
+
+uniform sampler2D bumpMap;   
+uniform sampler2D bumpMap2;
+uniform float blend_factor;
+uniform sampler2D screenTex;
+uniform sampler2D refTex;
+
+uniform float sunAngle;
+uniform float sunAngle2;
+uniform vec3 lightDir;
+uniform vec3 specular;
+uniform float lightExp;
+uniform float refScale;
+uniform float kd;
+uniform vec2 screenRes;
+uniform vec3 normScale;
+uniform float fresnelScale;
+uniform float fresnelOffset;
+uniform float blurMultiplier;
+uniform vec2 screen_res;
+uniform mat4 norm_mat; //region space to screen space
+
+//bigWave is (refCoord.w, view.w);
+VARYING vec4 refCoord;
+VARYING vec4 littleWave;
+VARYING vec4 view;
+VARYING vec4 vary_position;
+
+vec3 scaleSoftClip(vec3 c);
+vec3 srgb_to_linear(vec3 cs);
+vec2 encode_normal(vec3 n);
+
+vec3 BlendNormal(vec3 bump1, vec3 bump2)
+{
+    //vec3 normal   = bump1.xyz * vec3( 2.0,  2.0, 2.0) - vec3(1.0, 1.0,  0.0);
+    //vec3 normal2  = bump2.xyz * vec3(-2.0, -2.0, 2.0) + vec3(1.0, 1.0, -1.0);
+    //vec3 n        = normalize(normal * dot(normal, normal2) - (normal2 * normal.z));
+    vec3 n = normalize(mix(bump1, bump2, blend_factor));
+    return n;
+}
+
+void main() 
+{
+	vec4 color;
+	float dist = length(view.xy);
+	
+	//normalize view vector
+	vec3 viewVec = normalize(view.xyz);
+	
+	//get wave normals
+	vec3 wave1_a = texture2D(bumpMap, vec2(refCoord.w, view.w)).xyz*2.0-1.0;
+	vec3 wave2_a = texture2D(bumpMap, littleWave.xy).xyz*2.0-1.0;
+	vec3 wave3_a = texture2D(bumpMap, littleWave.zw).xyz*2.0-1.0;
+
+
+	vec3 wave1_b = texture2D(bumpMap2, vec2(refCoord.w, view.w)).xyz*2.0-1.0;
+	vec3 wave2_b = texture2D(bumpMap2, littleWave.xy).xyz*2.0-1.0;
+	vec3 wave3_b = texture2D(bumpMap2, littleWave.zw).xyz*2.0-1.0;
+
+    vec3 wave1 = BlendNormal(wave1_a, wave1_b);
+    vec3 wave2 = BlendNormal(wave2_a, wave2_b);
+    vec3 wave3 = BlendNormal(wave3_a, wave3_b);
+
+	//get base fresnel components	
+	
+	vec3 df = vec3(
+					dot(viewVec, wave1),
+					dot(viewVec, (wave2 + wave3) * 0.5),
+					dot(viewVec, wave3)
+				 ) * fresnelScale + fresnelOffset;
+	df *= df;
+		    
+	vec2 distort = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
+	
+	float dist2 = dist;
+	dist = max(dist, 5.0);
+	
+	float dmod = sqrt(dist);
+	
+	vec2 dmod_scale = vec2(dmod*dmod, dmod);
+	
+	//get reflected color
+	vec2 refdistort1 = wave1.xy*normScale.x;
+	vec2 refvec1 = distort+refdistort1/dmod_scale;
+	vec4 refcol1 = texture2D(refTex, refvec1);
+	
+	vec2 refdistort2 = wave2.xy*normScale.y;
+	vec2 refvec2 = distort+refdistort2/dmod_scale;
+	vec4 refcol2 = texture2D(refTex, refvec2);
+	
+	vec2 refdistort3 = wave3.xy*normScale.z;
+	vec2 refvec3 = distort+refdistort3/dmod_scale;
+	vec4 refcol3 = texture2D(refTex, refvec3);
+
+	vec4 refcol = refcol1 + refcol2 + refcol3;
+	float df1 = df.x + df.y + df.z;
+	refcol *= df1 * 0.333;
+	
+	vec3 wavef = (wave1 + wave2 * 0.4 + wave3 * 0.6) * 0.5;
+	wavef.z *= max(-viewVec.z, 0.1);
+	wavef = normalize(wavef);
+	
+	float df2 = dot(viewVec, wavef) * fresnelScale+fresnelOffset;
+	
+	vec2 refdistort4 = wavef.xy*0.125;
+	refdistort4.y -= abs(refdistort4.y);
+	vec2 refvec4 = distort+refdistort4/dmod;
+	float dweight = min(dist2*blurMultiplier, 1.0);
+	vec4 baseCol = texture2D(refTex, refvec4);
+
+	refcol = mix(baseCol*df2, refcol, dweight);
+
+	//get specular component
+	float spec = clamp(dot(lightDir, (reflect(viewVec,wavef))),0.0,1.0);
+		
+	//harden specular
+	spec = pow(spec, 128.0);
+
+	//figure out distortion vector (ripply)   
+	vec2 distort2 = distort+wavef.xy*refScale/max(dmod*df1, 1.0);
+		
+	vec4 fb = texture2D(screenTex, distort2);
+	
+	//mix with reflection
+	// 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);
+
+    color.rgb *= 2.0f;
+    color.rgb = scaleSoftClip(color.rgb);
+	
+	vec4 pos = vary_position;
+	
+	color.rgb += spec * specular;
+	color.a    = spec * sunAngle2;
+    
+	vec3 screenspacewavef = normalize((norm_mat*vec4(wavef, 1.0)).xyz);
+	
+	frag_data[0] = vec4(color.rgb, color); // diffuse
+	frag_data[1] = vec4(spec * specular, spec);		// speccolor, spec
+	frag_data[2] = vec4(encode_normal(wavef.xyz), 0.05, 0);// normalxy, 0, 0
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl
new file mode 100644
index 0000000000..02000d90ca
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl
@@ -0,0 +1,95 @@
+/** 
+ * @file waterV.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
+ * $/LicenseInfo$
+ */
+
+uniform mat4 modelview_matrix;
+uniform mat4 modelview_projection_matrix;
+
+ATTRIBUTE vec3 position;
+
+
+uniform vec2 d1;
+uniform vec2 d2;
+uniform float time;
+uniform vec3 eyeVec;
+uniform float waterHeight;
+
+VARYING vec4 refCoord;
+VARYING vec4 littleWave;
+VARYING vec4 view;
+
+VARYING vec4 vary_position;
+
+float wave(vec2 v, float t, float f, vec2 d, float s) 
+{
+   return (dot(d, v)*f + t*s)*f;
+}
+
+void main()
+{
+	//transform vertex
+	vec4 pos = vec4(position.xyz, 1.0);
+	mat4 modelViewProj = modelview_projection_matrix;
+	
+	vec4 oPosition;
+		    
+	//get view vector
+	vec3 oEyeVec;
+	oEyeVec.xyz = pos.xyz-eyeVec;
+		
+	float d = length(oEyeVec.xy);
+	float ld = min(d, 2560.0);
+	
+	pos.xy = eyeVec.xy + oEyeVec.xy/d*ld;
+	view.xyz = oEyeVec;
+		
+	d = clamp(ld/1536.0-0.5, 0.0, 1.0);	
+	d *= d;
+		
+	oPosition = vec4(position, 1.0);
+	oPosition.z = mix(oPosition.z, max(eyeVec.z*0.75, 0.0), d);
+	vary_position = modelview_matrix * oPosition;
+	oPosition = modelViewProj * oPosition;
+	
+	refCoord.xyz = oPosition.xyz + vec3(0,0,0.2);
+	
+	//get wave position parameter (create sweeping horizontal waves)
+	vec3 v = pos.xyz;
+	v.x += (cos(v.x*0.08/*+time*0.01*/)+sin(v.y*0.02))*6.0;
+	    
+	//push position for further horizon effect.
+	pos.xyz = oEyeVec.xyz*(waterHeight/oEyeVec.z);
+	pos.w = 1.0;
+	pos = modelview_matrix*pos;
+	
+	//pass wave parameters to pixel shader
+	vec2 bigWave =  (v.xy) * vec2(0.04,0.04)  + d1 * time * 0.055;
+	//get two normal map (detail map) texture coordinates
+	littleWave.xy = (v.xy) * vec2(0.45, 0.9)   + d2 * time * 0.13;
+	littleWave.zw = (v.xy) * vec2(0.1, 0.2) + d1 * time * 0.1;
+	view.w = bigWave.y;
+	refCoord.w = bigWave.x;
+	
+	gl_Position = oPosition;
+}