NORSPEC-311 fix alpha / opaque lighting diffs

11 files changed, 336 insertions, 31 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 2d3b32159a..6570189c5b 100755
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -8894,6 +8894,17 @@
       <key>Value</key>
       <real>1.0</real>
     </map>
+  <key>RenderDeferredDisplayGamma</key>
+  <map>
+    <key>Comment</key>
+    <string>Gamma ramp exponent for final correction before display gamma.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>F32</string>
+    <key>Value</key>
+    <real>1.8</real>
+  </map>
     <key>RenderGLCoreProfile</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
index b64852f17b..69b0f8f012 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl
@@ -136,6 +136,52 @@ float pcfShadow(sampler2DShadow shadowMap, vec4 stc)
 }
 #endif
 
+#if WATER_FOG
+uniform vec4 waterPlane;
+uniform vec4 waterFogColor;
+uniform float waterFogDensity;
+uniform float waterFogKS;
+
+vec4 applyWaterFogDeferred(vec3 pos, vec4 color)
+{
+	//normalize view vector
+	vec3 view = normalize(pos);
+	float es = -(dot(view, waterPlane.xyz));
+
+	//find intersection point with water plane and eye vector
+	
+	//get eye depth
+	float e0 = max(-waterPlane.w, 0.0);
+	
+	vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
+	
+	//get object depth
+	float depth = length(pos - int_v);
+		
+	//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);
+	
+	color.rgb = color.rgb * D + kc.rgb * L;
+	color.a = kc.a + color.a;
+	
+	return color;
+}
+#endif
+
 vec3 srgb_to_linear(vec3 cs)
 {
 	
@@ -240,8 +286,9 @@ void main()
 	vec4 gamma_diff = diff;
 
 	diff.rgb = srgb_to_linear(diff.rgb);
-
+	
 #ifdef USE_VERTEX_COLOR
+	diff.rgb *= vertex_color.rgb;
 	float vertex_color_alpha = vertex_color.a;	
 #else
 	float vertex_color_alpha = 1.0;
@@ -266,6 +313,7 @@ void main()
 	color.rgb = scaleSoftClip(color.rgb);
 
 	color.rgb = srgb_to_linear(color.rgb);
+	
 	col = vec4(0,0,0,0);
 	
    #define LIGHT_LOOP(i) col.rgb += light_diffuse[i].rgb * calcPointLightOrSpotLight(pos.xyz, normal, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z);
@@ -281,7 +329,11 @@ void main()
 	color.rgb += diff.rgb * vary_pointlight_col_linear * col.rgb;
 
 	color.rgb = linear_to_srgb(color.rgb);
-	//color.rgb = vec3(1,0,1);
+
+#if WATER_FOG
+	color = applyWaterFogDeferred(pos.xyz, color);
+#endif
+
 	frag_color = color;
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightAlphaMaskF.glsl
index a74256de81..00743abe34 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightAlphaMaskF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightAlphaMaskF.glsl
@@ -61,6 +61,52 @@ vec3 linear_to_srgb(vec3 cl)
 	return 1.055 * pow(cl, vec3(0.41666)) - 0.055;
 }
 
+#ifdef WATER_FOG
+uniform vec4 waterPlane;
+uniform vec4 waterFogColor;
+uniform float waterFogDensity;
+uniform float waterFogKS;
+
+vec4 applyWaterFogDeferred(vec3 pos, vec4 color)
+{
+	//normalize view vector
+	vec3 view = normalize(pos);
+	float es = -(dot(view, waterPlane.xyz));
+
+	//find intersection point with water plane and eye vector
+	
+	//get eye depth
+	float e0 = max(-waterPlane.w, 0.0);
+	
+	vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
+	
+	//get object depth
+	float depth = length(pos - int_v);
+		
+	//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);
+	
+	color.rgb = color.rgb * D + kc.rgb * L;
+	color.a = kc.a + color.a;
+	
+	return color;
+}
+#endif
+
 uniform float minimum_alpha;
 
 void main() 
@@ -72,7 +118,7 @@ void main()
 #endif
 
 	float final_alpha = color.a * vertex_color.a;
-	if (final_alpha < minimum_alpha)
+	if (color.a < minimum_alpha)
 	{
 		discard;
 	}
@@ -84,7 +130,12 @@ void main()
 	color.rgb = fullbrightScaleSoftClip(color.rgb);
 
 	color.rgb = linear_to_srgb(color.rgb);
-	//color.rgb = vec3(1,0,1);
+
+
+#ifdef WATER_FOG
+	color = applyWaterFogDeferred(pos, vec4(color));
+#endif
+
 	frag_color.rgb = color.rgb;
 	frag_color.a   = final_alpha;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
index 5876efedec..1e8df68a72 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightF.glsl
@@ -35,12 +35,63 @@ out vec4 frag_color;
 uniform sampler2D diffuseMap;
 #endif
 
+VARYING vec3 vary_position;
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
 vec3 fullbrightAtmosTransport(vec3 light);
 vec3 fullbrightScaleSoftClip(vec3 light);
 
+#if HAS_ALPHA_MASK
+uniform float minimum_alpha;
+#endif
+
+#ifdef WATER_FOG
+uniform vec4 waterPlane;
+uniform vec4 waterFogColor;
+uniform float waterFogDensity;
+uniform float waterFogKS;
+
+vec4 applyWaterFogDeferred(vec3 pos, vec4 color)
+{
+	//normalize view vector
+	vec3 view = normalize(pos);
+	float es = -(dot(view, waterPlane.xyz));
+
+	//find intersection point with water plane and eye vector
+	
+	//get eye depth
+	float e0 = max(-waterPlane.w, 0.0);
+	
+	vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
+	
+	//get object depth
+	float depth = length(pos - int_v);
+		
+	//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);
+	
+	color.rgb = color.rgb * D + kc.rgb * L;
+	color.a = kc.a + color.a;
+	
+	return color;
+}
+#endif
+
 vec3 srgb_to_linear(vec3 cs)
 {
 	
@@ -69,15 +120,31 @@ void main()
 	vec4 color = texture2D(diffuseMap, vary_texcoord0.xy);
 #endif
 
+	float final_alpha = color.a * vertex_color.a;
+
+#if HAS_ALPHA_MASK
+	if (color.a < minimum_alpha)
+	{
+		discard;
+	}
+#endif
 
-	color.rgb = srgb_to_linear(color.rgb);
 	color.rgb *= vertex_color.rgb;
+	color.rgb = srgb_to_linear(color.rgb);
+	
 
 	color.rgb = fullbrightAtmosTransport(color.rgb);
 	color.rgb = fullbrightScaleSoftClip(color.rgb);
-
+	
 	color.rgb = linear_to_srgb(color.rgb);
-	//color.rgb = vec3(1,0,1);
+
+#ifdef WATER_FOG
+	vec3 pos = vary_position;
+	vec4 fogged = applyWaterFogDeferred(pos, vec4(color.rgb, final_alpha));
+	color.rgb = fogged.rgb;
+	color.a   = fogged.a;
+#endif
+
 	frag_color.rgb = color.rgb;
 	frag_color.a   = color.a;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
index 3f09a15375..22f47b7572 100755
--- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightV.glsl
@@ -40,6 +40,9 @@ vec3 atmosAffectDirectionalLight(float lightIntensity);
 vec3 scaleDownLight(vec3 light);
 vec3 scaleUpLight(vec3 light);
 
+#if WATER_FOG
+VARYING vec3 vary_position;
+#endif
 
 VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
@@ -53,7 +56,11 @@ void main()
 	passTextureIndex();
 
 	gl_Position = modelview_projection_matrix*vec4(position.xyz, 1.0);
-	
+
+#if WATER_FOG
+	vary_position = pos.xyz;
+#endif
+
 	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
 	
 	calcAtmospherics(pos.xyz);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
index a3610bfffa..59b027a045 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
@@ -51,7 +51,7 @@ vec3 linear_to_srgb(vec3 cl)
 void main() 
 {
 	vec4 diff = texture2DRect(diffuseRect, vary_fragcoord);
-	diff.rgb = linear_to_srgb(diff.rgb);
+	diff.rgb = pow(diff.rgb,vec3(texture_gamma));
 	frag_color = diff;
 }
 
diff --git a/indra/newview/lldrawpoolalpha.cpp b/indra/newview/lldrawpoolalpha.cpp
index e53c783161..973e263572 100755
--- a/indra/newview/lldrawpoolalpha.cpp
+++ b/indra/newview/lldrawpoolalpha.cpp
@@ -93,11 +93,21 @@ void LLDrawPoolAlpha::beginPostDeferredPass(S32 pass)
 
 	if (pass == 0)
 	{
-		simple_shader = &gDeferredAlphaProgram;
-		fullbright_shader = &gObjectFullbrightProgram;
+		if (LLPipeline::sUnderWaterRender)
+		{
+			simple_shader = &gDeferredAlphaWaterProgram;
+			fullbright_shader = &gDeferredFullbrightWaterProgram;
+		}
+		else
+		{
+			simple_shader = &gDeferredAlphaProgram;
+			fullbright_shader = &gDeferredFullbrightProgram;
+		}
+
 		fullbright_shader->bind();
 		fullbright_shader->uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f); 
 		fullbright_shader->unbind();
+
 		//prime simple shader (loads shadow relevant uniforms)
 		gPipeline.bindDeferredShader(*simple_shader);
 	}
diff --git a/indra/newview/lldrawpoolsimple.cpp b/indra/newview/lldrawpoolsimple.cpp
index 87fbeaf2c0..d51b84cfbc 100755
--- a/indra/newview/lldrawpoolsimple.cpp
+++ b/indra/newview/lldrawpoolsimple.cpp
@@ -111,7 +111,14 @@ void LLDrawPoolGlow::render(S32 pass)
 	
 	LLGLSLShader* shader = LLPipeline::sUnderWaterRender ? &gObjectEmissiveWaterProgram : &gObjectEmissiveProgram;
 	shader->bind();
-	shader->uniform1f(LLShaderMgr::TEXTURE_GAMMA, 1.f);
+	if (LLPipeline::sRenderDeferred)
+	{
+		shader->uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
+	}
+	else
+	{
+		shader->uniform1f(LLShaderMgr::TEXTURE_GAMMA, 1.f);
+	}	
 
 	LLGLDepthTest depth(GL_TRUE, GL_FALSE);
 	gGL.setColorMask(false, true);
@@ -536,7 +543,15 @@ void LLDrawPoolFullbright::prerender()
 
 void LLDrawPoolFullbright::beginPostDeferredPass(S32 pass)
 {
-	gDeferredFullbrightProgram.bind();
+	if (LLPipeline::sUnderWaterRender)
+	{
+		gDeferredFullbrightWaterProgram.bind();
+	}
+	else
+	{
+		gDeferredFullbrightProgram.bind();
+	}
+	
 }
 
 void LLDrawPoolFullbright::renderPostDeferred(S32 pass)
@@ -550,7 +565,14 @@ void LLDrawPoolFullbright::renderPostDeferred(S32 pass)
 
 void LLDrawPoolFullbright::endPostDeferredPass(S32 pass)
 {
-	gDeferredFullbrightProgram.unbind();
+	if (LLPipeline::sUnderWaterRender)
+	{
+		gDeferredFullbrightWaterProgram.unbind();
+	}
+	else
+	{
+		gDeferredFullbrightProgram.unbind();
+	}
 	LLRenderPass::endRenderPass(pass);
 }
 
@@ -633,15 +655,17 @@ void LLDrawPoolFullbrightAlphaMask::beginPostDeferredPass(S32 pass)
 	} 
 	else 
 	{
-#if LL_DARWIN
-		// the OS X 10.6.8 GeForce driver is a real POS
-		// this is a work-around for NORSPEC-314
-		gObjectFullbrightAlphaMaskProgram.bind();
-		gObjectFullbrightAlphaMaskProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
-#else
-		gDeferredFullbrightAlphaMaskProgram.bind();
-		gDeferredFullbrightAlphaMaskProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
-#endif
+		if (LLPipeline::sUnderWaterRender)
+		{
+			gDeferredFullbrightAlphaMaskWaterProgram.bind();
+			gDeferredFullbrightAlphaMaskWaterProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
+		}
+		else
+		{
+			gDeferredFullbrightAlphaMaskProgram.bind();
+			gDeferredFullbrightAlphaMaskProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, 2.2f);
+		}
+		
 	}
 }
 
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index e9c3990e9a..f0e4825279 100755
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -197,9 +197,12 @@ LLGLSLShader			gDeferredShadowAlphaMaskProgram;
 LLGLSLShader			gDeferredAvatarShadowProgram;
 LLGLSLShader			gDeferredAttachmentShadowProgram;
 LLGLSLShader			gDeferredAlphaProgram;
+LLGLSLShader			gDeferredAlphaWaterProgram;
 LLGLSLShader			gDeferredAvatarEyesProgram;
 LLGLSLShader			gDeferredFullbrightProgram;
 LLGLSLShader			gDeferredFullbrightAlphaMaskProgram;
+LLGLSLShader			gDeferredFullbrightWaterProgram;
+LLGLSLShader			gDeferredFullbrightAlphaMaskWaterProgram;
 LLGLSLShader			gDeferredEmissiveProgram;
 LLGLSLShader			gDeferredPostProgram;
 LLGLSLShader			gDeferredCoFProgram;
@@ -301,9 +304,12 @@ LLViewerShaderMgr::LLViewerShaderMgr() :
 	mShaderList.push_back(&gDeferredMaterialWaterProgram[9+LLMaterial::SHADER_COUNT]);
 	mShaderList.push_back(&gDeferredMaterialWaterProgram[13+LLMaterial::SHADER_COUNT]);	
 	mShaderList.push_back(&gDeferredAlphaProgram);
+	mShaderList.push_back(&gDeferredAlphaWaterProgram);
 	mShaderList.push_back(&gDeferredSkinnedAlphaProgram);
 	mShaderList.push_back(&gDeferredFullbrightProgram);
-	mShaderList.push_back(&gDeferredFullbrightAlphaMaskProgram);	
+	mShaderList.push_back(&gDeferredFullbrightAlphaMaskProgram);
+	mShaderList.push_back(&gDeferredFullbrightWaterProgram);
+	mShaderList.push_back(&gDeferredFullbrightAlphaMaskWaterProgram);	
 	mShaderList.push_back(&gDeferredFullbrightShinyProgram);
 	mShaderList.push_back(&gDeferredSkinnedFullbrightShinyProgram);
 	mShaderList.push_back(&gDeferredSkinnedFullbrightProgram);
@@ -1145,8 +1151,11 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAvatarProgram.unload();
 		gDeferredAvatarAlphaProgram.unload();
 		gDeferredAlphaProgram.unload();
+		gDeferredAlphaWaterProgram.unload();
 		gDeferredFullbrightProgram.unload();
 		gDeferredFullbrightAlphaMaskProgram.unload();
+		gDeferredFullbrightWaterProgram.unload();
+		gDeferredFullbrightAlphaMaskWaterProgram.unload();
 		gDeferredEmissiveProgram.unload();
 		gDeferredAvatarEyesProgram.unload();
 		gDeferredPostProgram.unload();		
@@ -1518,7 +1527,8 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAlphaProgram.mShaderFiles.push_back(make_pair("deferred/alphaV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredAlphaProgram.mShaderFiles.push_back(make_pair("deferred/alphaF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredAlphaProgram.addPermutation("USE_INDEXED_TEX", "1");
-		gDeferredAlphaProgram.addPermutation("USE_VERTEX_COLOR", "1");
+		//gDeferredAlphaProgram.addPermutation("USE_VERTEX_COLOR", "1");
+		gDeferredAlphaProgram.addPermutation("WATER_FOG", "0");
 		gDeferredAlphaProgram.addPermutation("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
 		gDeferredAlphaProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
@@ -1531,6 +1541,42 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
+		gDeferredAlphaWaterProgram.mName = "Deferred Alpha Underwater Shader";
+		gDeferredAlphaWaterProgram.mFeatures.atmosphericHelpers = true;
+		gDeferredAlphaWaterProgram.mFeatures.calculatesLighting = false;
+		gDeferredAlphaWaterProgram.mFeatures.calculatesAtmospherics = true;
+		gDeferredAlphaWaterProgram.mFeatures.hasGamma = true;
+		gDeferredAlphaWaterProgram.mFeatures.hasAtmospherics = true;
+		gDeferredAlphaWaterProgram.mFeatures.hasLighting = false;
+		gDeferredAlphaWaterProgram.mFeatures.isAlphaLighting = true;
+		gDeferredAlphaWaterProgram.mFeatures.disableTextureIndex = true; //hack to disable auto-setup of texture channels
+		if (mVertexShaderLevel[SHADER_DEFERRED] < 1)
+		{
+			gDeferredAlphaWaterProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
+		}
+		else
+		{ //shave off some texture units for shadow maps
+			gDeferredAlphaWaterProgram.mFeatures.mIndexedTextureChannels = llmax(LLGLSLShader::sIndexedTextureChannels - 6, 1);
+		}
+		gDeferredAlphaWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
+		gDeferredAlphaWaterProgram.mShaderFiles.clear();
+		gDeferredAlphaWaterProgram.mShaderFiles.push_back(make_pair("deferred/alphaV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredAlphaWaterProgram.mShaderFiles.push_back(make_pair("deferred/alphaF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredAlphaWaterProgram.addPermutation("USE_INDEXED_TEX", "1");
+		//gDeferredAlphaWaterProgram.addPermutation("USE_VERTEX_COLOR", "1");
+		gDeferredAlphaWaterProgram.addPermutation("WATER_FOG", "1");
+		gDeferredAlphaWaterProgram.addPermutation("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
+		gDeferredAlphaWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+
+		success = gDeferredAlphaWaterProgram.createShader(NULL, NULL);
+
+		// Hack
+		gDeferredAlphaWaterProgram.mFeatures.calculatesLighting = true;
+		gDeferredAlphaWaterProgram.mFeatures.hasLighting = true;
+	}
+
+	if (success)
+	{
 		gDeferredAvatarEyesProgram.mName = "Deferred Avatar Eyes Shader";
 		gDeferredAvatarEyesProgram.mFeatures.calculatesAtmospherics = true;
 		gDeferredAvatarEyesProgram.mFeatures.hasGamma = true;
@@ -1559,20 +1605,54 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
-		gDeferredFullbrightAlphaMaskProgram.mName = "Deferred Fullbright Alpha Mask Shader";
+		gDeferredFullbrightAlphaMaskProgram.mName = "Deferred Fullbright Alpha Masking Shader";
 		gDeferredFullbrightAlphaMaskProgram.mFeatures.calculatesAtmospherics = true;
 		gDeferredFullbrightAlphaMaskProgram.mFeatures.hasGamma = true;
 		gDeferredFullbrightAlphaMaskProgram.mFeatures.hasTransport = true;
 		gDeferredFullbrightAlphaMaskProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
 		gDeferredFullbrightAlphaMaskProgram.mShaderFiles.clear();
 		gDeferredFullbrightAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightV.glsl", GL_VERTEX_SHADER_ARB));
-		gDeferredFullbrightAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightAlphaMaskF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredFullbrightAlphaMaskProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredFullbrightAlphaMaskProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		gDeferredFullbrightAlphaMaskProgram.addPermutation("HAS_ALPHA_MASK","1");
 		success = gDeferredFullbrightAlphaMaskProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
 	{
+		gDeferredFullbrightWaterProgram.mName = "Deferred Fullbright Underwater Shader";
+		gDeferredFullbrightWaterProgram.mFeatures.calculatesAtmospherics = true;
+		gDeferredFullbrightWaterProgram.mFeatures.hasGamma = true;
+		gDeferredFullbrightWaterProgram.mFeatures.hasTransport = true;
+		gDeferredFullbrightWaterProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
+		gDeferredFullbrightWaterProgram.mShaderFiles.clear();
+		gDeferredFullbrightWaterProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredFullbrightWaterProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredFullbrightWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		gDeferredFullbrightWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
+		gDeferredFullbrightWaterProgram.addPermutation("WATER_FOG","1");
+		success = gDeferredFullbrightWaterProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
+		gDeferredFullbrightAlphaMaskWaterProgram.mName = "Deferred Fullbright Underwater Alpha Masking Shader";
+		gDeferredFullbrightAlphaMaskWaterProgram.mFeatures.calculatesAtmospherics = true;
+		gDeferredFullbrightAlphaMaskWaterProgram.mFeatures.hasGamma = true;
+		gDeferredFullbrightAlphaMaskWaterProgram.mFeatures.hasTransport = true;
+		gDeferredFullbrightAlphaMaskWaterProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
+		gDeferredFullbrightAlphaMaskWaterProgram.mShaderFiles.clear();
+		gDeferredFullbrightAlphaMaskWaterProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredFullbrightAlphaMaskWaterProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredFullbrightAlphaMaskWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		gDeferredFullbrightAlphaMaskWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
+		gDeferredFullbrightAlphaMaskWaterProgram.addPermutation("HAS_ALPHA_MASK","1");
+		gDeferredFullbrightAlphaMaskWaterProgram.addPermutation("WATER_FOG","1");
+		success = gDeferredFullbrightAlphaMaskWaterProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
 		gDeferredFullbrightShinyProgram.mName = "Deferred FullbrightShiny Shader";
 		gDeferredFullbrightShinyProgram.mFeatures.calculatesAtmospherics = true;
 		gDeferredFullbrightShinyProgram.mFeatures.hasGamma = true;
diff --git a/indra/newview/llviewershadermgr.h b/indra/newview/llviewershadermgr.h
index f14180d957..5fa9b82170 100755
--- a/indra/newview/llviewershadermgr.h
+++ b/indra/newview/llviewershadermgr.h
@@ -366,6 +366,9 @@ extern LLGLSLShader			gDeferredAttachmentShadowProgram;
 extern LLGLSLShader			gDeferredAlphaProgram;
 extern LLGLSLShader			gDeferredFullbrightProgram;
 extern LLGLSLShader			gDeferredFullbrightAlphaMaskProgram;
+extern LLGLSLShader			gDeferredAlphaWaterProgram;
+extern LLGLSLShader			gDeferredFullbrightWaterProgram;
+extern LLGLSLShader			gDeferredFullbrightAlphaMaskWaterProgram;
 extern LLGLSLShader			gDeferredEmissiveProgram;
 extern LLGLSLShader			gDeferredAvatarEyesProgram;
 extern LLGLSLShader			gDeferredAvatarAlphaProgram;
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index d89ad615ae..c593c85ce7 100755
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -8831,9 +8831,9 @@ void LLPipeline::renderDeferredLighting()
 		
 		gDeferredPostGammaCorrectProgram.uniform2f(LLShaderMgr::DEFERRED_SCREEN_RES, mScreen.getWidth(), mScreen.getHeight());
 		
-		F32 gamma = 1.0/2.2;
+		F32 gamma = gSavedSettings.getF32("RenderDeferredDisplayGamma");
 
-		gDeferredPostGammaCorrectProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, gamma);
+		gDeferredPostGammaCorrectProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, (gamma > 0.1f) ? 1.0f / gamma : (1.0f/2.2f));
 		
 		gGL.begin(LLRender::TRIANGLE_STRIP);
 		gGL.texCoord2f(tc1.mV[0], tc1.mV[1]);
@@ -9380,9 +9380,9 @@ void LLPipeline::renderDeferredLightingToRT(LLRenderTarget* target)
 		
 		gDeferredPostGammaCorrectProgram.uniform2f(LLShaderMgr::DEFERRED_SCREEN_RES, target->getWidth(), target->getHeight());
 		
-		F32 gamma = 1.0/2.2;
+		F32 gamma = gSavedSettings.getF32("RenderDeferredDisplayGamma");
 
-		gDeferredPostGammaCorrectProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, gamma);
+		gDeferredPostGammaCorrectProgram.uniform1f(LLShaderMgr::TEXTURE_GAMMA, (gamma > 0.1f) ? 1.0f / gamma : (1.0f/2.2f));
 		
 		gGL.begin(LLRender::TRIANGLE_STRIP);
 		gGL.texCoord2f(tc1.mV[0], tc1.mV[1]);