Merge v3.6.7 in

1 files changed, 341 insertions, 143 deletions

diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index b9e0847935..50f0a5f1af 100755
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -42,28 +42,19 @@
 #include "llvosky.h"
 #include "llrender.h"
 
-#if LL_DARWIN
-#include "OpenGL/OpenGL.h"
-
-// include spec exp clamp to fix older mac rendering artifacts
-//
-#define SINGLE_FP_PERMUTATION(shader)					\
-	if (gGLManager.mIsMobileGF)							\
-	{																\
-		shader.addPermutation("SINGLE_FP_ONLY","1");		\
-	}
-
-
-#else
-#define SINGLE_FP_PERMUTATION(shader)
-#endif
-
 #ifdef LL_RELEASE_FOR_DOWNLOAD
 #define UNIFORM_ERRS LL_WARNS_ONCE("Shader")
 #else
 #define UNIFORM_ERRS LL_ERRS("Shader")
 #endif
 
+static LLStaticHashedString sTexture0("texture0");
+static LLStaticHashedString sTexture1("texture1");
+static LLStaticHashedString sTex0("tex0");
+static LLStaticHashedString sTex1("tex1");
+static LLStaticHashedString sGlowMap("glowMap");
+static LLStaticHashedString sScreenMap("screenMap");
+
 // Lots of STL stuff in here, using namespace std to keep things more readable
 using std::vector;
 using std::pair;
@@ -93,10 +84,13 @@ LLGLSLShader	gTwoTextureAddProgram;
 LLGLSLShader	gOneTextureNoColorProgram;
 LLGLSLShader	gDebugProgram;
 LLGLSLShader	gClipProgram;
+LLGLSLShader	gDownsampleDepthProgram;
+LLGLSLShader	gDownsampleDepthRectProgram;
 LLGLSLShader	gAlphaMaskProgram;
 
 //object shaders
 LLGLSLShader		gObjectSimpleProgram;
+LLGLSLShader		gObjectSimpleImpostorProgram;
 LLGLSLShader		gObjectPreviewProgram;
 LLGLSLShader		gObjectSimpleWaterProgram;
 LLGLSLShader		gObjectSimpleAlphaMaskProgram;
@@ -182,6 +176,7 @@ LLGLSLShader			gPostNightVisionProgram;
 // Deferred rendering shaders
 LLGLSLShader			gDeferredImpostorProgram;
 LLGLSLShader			gDeferredWaterProgram;
+LLGLSLShader			gDeferredUnderWaterProgram;
 LLGLSLShader			gDeferredDiffuseProgram;
 LLGLSLShader			gDeferredDiffuseAlphaMaskProgram;
 LLGLSLShader			gDeferredNonIndexedDiffuseProgram;
@@ -197,20 +192,26 @@ LLGLSLShader			gDeferredTreeShadowProgram;
 LLGLSLShader			gDeferredAvatarProgram;
 LLGLSLShader			gDeferredAvatarAlphaProgram;
 LLGLSLShader			gDeferredLightProgram;
-LLGLSLShader			gDeferredMultiLightProgram;
+LLGLSLShader			gDeferredMultiLightProgram[16];
 LLGLSLShader			gDeferredSpotLightProgram;
 LLGLSLShader			gDeferredMultiSpotLightProgram;
 LLGLSLShader			gDeferredSunProgram;
 LLGLSLShader			gDeferredBlurLightProgram;
 LLGLSLShader			gDeferredSoftenProgram;
+LLGLSLShader			gDeferredSoftenWaterProgram;
 LLGLSLShader			gDeferredShadowProgram;
 LLGLSLShader			gDeferredShadowCubeProgram;
 LLGLSLShader			gDeferredShadowAlphaMaskProgram;
 LLGLSLShader			gDeferredAvatarShadowProgram;
 LLGLSLShader			gDeferredAttachmentShadowProgram;
 LLGLSLShader			gDeferredAlphaProgram;
+LLGLSLShader			gDeferredAlphaImpostorProgram;
+LLGLSLShader			gDeferredAlphaWaterProgram;
 LLGLSLShader			gDeferredAvatarEyesProgram;
 LLGLSLShader			gDeferredFullbrightProgram;
+LLGLSLShader			gDeferredFullbrightAlphaMaskProgram;
+LLGLSLShader			gDeferredFullbrightWaterProgram;
+LLGLSLShader			gDeferredFullbrightAlphaMaskWaterProgram;
 LLGLSLShader			gDeferredEmissiveProgram;
 LLGLSLShader			gDeferredPostProgram;
 LLGLSLShader			gDeferredCoFProgram;
@@ -228,6 +229,7 @@ LLGLSLShader			gNormalMapGenProgram;
 
 // Deferred materials shaders
 LLGLSLShader			gDeferredMaterialProgram[LLMaterial::SHADER_COUNT*2];
+LLGLSLShader			gDeferredMaterialWaterProgram[LLMaterial::SHADER_COUNT*2];
 
 LLViewerShaderMgr::LLViewerShaderMgr() :
 	mVertexShaderLevel(SHADER_COUNT, 0),
@@ -243,6 +245,7 @@ LLViewerShaderMgr::LLViewerShaderMgr() :
 	mShaderList.push_back(&gWaterProgram);
 	mShaderList.push_back(&gAvatarEyeballProgram); 
 	mShaderList.push_back(&gObjectSimpleProgram);
+	mShaderList.push_back(&gObjectSimpleImpostorProgram);
 	mShaderList.push_back(&gObjectPreviewProgram);
 	mShaderList.push_back(&gImpostorProgram);
 	mShaderList.push_back(&gObjectFullbrightNoColorProgram);
@@ -293,6 +296,7 @@ LLViewerShaderMgr::LLViewerShaderMgr() :
 	mShaderList.push_back(&gUnderWaterProgram);
 	mShaderList.push_back(&gDeferredSunProgram);
 	mShaderList.push_back(&gDeferredSoftenProgram);
+	mShaderList.push_back(&gDeferredSoftenWaterProgram);
 	mShaderList.push_back(&gDeferredMaterialProgram[1]);
 	mShaderList.push_back(&gDeferredMaterialProgram[5]);
 	mShaderList.push_back(&gDeferredMaterialProgram[9]);
@@ -301,15 +305,29 @@ LLViewerShaderMgr::LLViewerShaderMgr() :
 	mShaderList.push_back(&gDeferredMaterialProgram[5+LLMaterial::SHADER_COUNT]);
 	mShaderList.push_back(&gDeferredMaterialProgram[9+LLMaterial::SHADER_COUNT]);
 	mShaderList.push_back(&gDeferredMaterialProgram[13+LLMaterial::SHADER_COUNT]);	
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[1]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[5]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[9]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[13]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[1+LLMaterial::SHADER_COUNT]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[5+LLMaterial::SHADER_COUNT]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[9+LLMaterial::SHADER_COUNT]);
+	mShaderList.push_back(&gDeferredMaterialWaterProgram[13+LLMaterial::SHADER_COUNT]);	
 	mShaderList.push_back(&gDeferredAlphaProgram);
+	mShaderList.push_back(&gDeferredAlphaImpostorProgram);
+	mShaderList.push_back(&gDeferredAlphaWaterProgram);
 	mShaderList.push_back(&gDeferredSkinnedAlphaProgram);
 	mShaderList.push_back(&gDeferredFullbrightProgram);
+	mShaderList.push_back(&gDeferredFullbrightAlphaMaskProgram);
+	mShaderList.push_back(&gDeferredFullbrightWaterProgram);
+	mShaderList.push_back(&gDeferredFullbrightAlphaMaskWaterProgram);	
 	mShaderList.push_back(&gDeferredFullbrightShinyProgram);
 	mShaderList.push_back(&gDeferredSkinnedFullbrightShinyProgram);
 	mShaderList.push_back(&gDeferredSkinnedFullbrightProgram);
 	mShaderList.push_back(&gDeferredEmissiveProgram);
 	mShaderList.push_back(&gDeferredAvatarEyesProgram);
 	mShaderList.push_back(&gDeferredWaterProgram);
+	mShaderList.push_back(&gDeferredUnderWaterProgram);	
 	mShaderList.push_back(&gDeferredAvatarAlphaProgram);
 	mShaderList.push_back(&gDeferredWLSkyProgram);
 	mShaderList.push_back(&gDeferredWLCloudProgram);
@@ -337,47 +355,6 @@ void LLViewerShaderMgr::initAttribsAndUniforms(void)
 	if (mReservedAttribs.empty())
 	{
 		LLShaderMgr::initAttribsAndUniforms();
-
-		mAvatarUniforms.push_back("matrixPalette");
-		mAvatarUniforms.push_back("gWindDir");
-		mAvatarUniforms.push_back("gSinWaveParams");
-		mAvatarUniforms.push_back("gGravity");
-
-		mWLUniforms.push_back("camPosLocal");
-
-		mTerrainUniforms.reserve(5);
-		mTerrainUniforms.push_back("detail_0");
-		mTerrainUniforms.push_back("detail_1");
-		mTerrainUniforms.push_back("detail_2");
-		mTerrainUniforms.push_back("detail_3");
-		mTerrainUniforms.push_back("alpha_ramp");
-
-		mGlowUniforms.push_back("glowDelta");
-		mGlowUniforms.push_back("glowStrength");
-
-		mGlowExtractUniforms.push_back("minLuminance");
-		mGlowExtractUniforms.push_back("maxExtractAlpha");
-		mGlowExtractUniforms.push_back("lumWeights");
-		mGlowExtractUniforms.push_back("warmthWeights");
-		mGlowExtractUniforms.push_back("warmthAmount");
-
-		mShinyUniforms.push_back("origin");
-
-		mWaterUniforms.reserve(12);
-		mWaterUniforms.push_back("screenTex");
-		mWaterUniforms.push_back("screenDepth");
-		mWaterUniforms.push_back("refTex");
-		mWaterUniforms.push_back("eyeVec");
-		mWaterUniforms.push_back("time");
-		mWaterUniforms.push_back("d1");
-		mWaterUniforms.push_back("d2");
-		mWaterUniforms.push_back("lightDir");
-		mWaterUniforms.push_back("specular");
-		mWaterUniforms.push_back("lightExp");
-		mWaterUniforms.push_back("fogCol");
-		mWaterUniforms.push_back("kd");
-		mWaterUniforms.push_back("refScale");
-		mWaterUniforms.push_back("waterHeight");
 	}	
 }
 	
@@ -702,6 +679,8 @@ void LLViewerShaderMgr::unloadShaders()
 	gOcclusionCubeProgram.unload();
 	gDebugProgram.unload();
 	gClipProgram.unload();
+	gDownsampleDepthProgram.unload();
+	gDownsampleDepthRectProgram.unload();
 	gAlphaMaskProgram.unload();
 	gUIProgram.unload();
 	gPathfindingProgram.unload();
@@ -717,6 +696,7 @@ void LLViewerShaderMgr::unloadShaders()
 	gObjectFullbrightNoColorProgram.unload();
 	gObjectFullbrightNoColorWaterProgram.unload();
 	gObjectSimpleProgram.unload();
+	gObjectSimpleImpostorProgram.unload();
 	gObjectPreviewProgram.unload();
 	gImpostorProgram.unload();
 	gObjectSimpleAlphaMaskProgram.unload();
@@ -962,7 +942,7 @@ BOOL LLViewerShaderMgr::loadShadersEnvironment()
 		gTerrainProgram.mShaderFiles.push_back(make_pair("environment/terrainV.glsl", GL_VERTEX_SHADER_ARB));
 		gTerrainProgram.mShaderFiles.push_back(make_pair("environment/terrainF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gTerrainProgram.mShaderLevel = mVertexShaderLevel[SHADER_ENVIRONMENT];
-		success = gTerrainProgram.createShader(NULL, &mTerrainUniforms);
+		success = gTerrainProgram.createShader(NULL, NULL);
 	}
 
 	if (!success)
@@ -1000,7 +980,7 @@ BOOL LLViewerShaderMgr::loadShadersWater()
 		gWaterProgram.mShaderFiles.push_back(make_pair("environment/waterV.glsl", GL_VERTEX_SHADER_ARB));
 		gWaterProgram.mShaderFiles.push_back(make_pair("environment/waterF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_WATER];
-		success = gWaterProgram.createShader(NULL, &mWaterUniforms);
+		success = gWaterProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1014,7 +994,7 @@ BOOL LLViewerShaderMgr::loadShadersWater()
 		gUnderWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_WATER];
 		gUnderWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
 		
-		success = gUnderWaterProgram.createShader(NULL, &mWaterUniforms);
+		success = gUnderWaterProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1032,7 +1012,7 @@ BOOL LLViewerShaderMgr::loadShadersWater()
 		gTerrainWaterProgram.mShaderFiles.push_back(make_pair("environment/terrainWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gTerrainWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_ENVIRONMENT];
 		gTerrainWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
-		terrainWaterSuccess = gTerrainWaterProgram.createShader(NULL, &mTerrainUniforms);
+		terrainWaterSuccess = gTerrainWaterProgram.createShader(NULL, NULL);
 	}	
 
 	/// Keep track of water shader levels
@@ -1081,7 +1061,7 @@ BOOL LLViewerShaderMgr::loadShadersEffects()
 		gGlowProgram.mShaderFiles.push_back(make_pair("effects/glowV.glsl", GL_VERTEX_SHADER_ARB));
 		gGlowProgram.mShaderFiles.push_back(make_pair("effects/glowF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gGlowProgram.mShaderLevel = mVertexShaderLevel[SHADER_EFFECT];
-		success = gGlowProgram.createShader(NULL, &mGlowUniforms);
+		success = gGlowProgram.createShader(NULL, NULL);
 		if (!success)
 		{
 			LLPipeline::sRenderGlow = FALSE;
@@ -1095,7 +1075,7 @@ BOOL LLViewerShaderMgr::loadShadersEffects()
 		gGlowExtractProgram.mShaderFiles.push_back(make_pair("effects/glowExtractV.glsl", GL_VERTEX_SHADER_ARB));
 		gGlowExtractProgram.mShaderFiles.push_back(make_pair("effects/glowExtractF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gGlowExtractProgram.mShaderLevel = mVertexShaderLevel[SHADER_EFFECT];
-		success = gGlowExtractProgram.createShader(NULL, &mGlowExtractUniforms);
+		success = gGlowExtractProgram.createShader(NULL, NULL);
 		if (!success)
 		{
 			LLPipeline::sRenderGlow = FALSE;
@@ -1124,12 +1104,16 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredImpostorProgram.unload();
 		gDeferredTerrainProgram.unload();
 		gDeferredLightProgram.unload();
-		gDeferredMultiLightProgram.unload();
+		for (U32 i = 0; i < LL_DEFERRED_MULTI_LIGHT_COUNT; ++i)
+		{
+			gDeferredMultiLightProgram[i].unload();
+		}
 		gDeferredSpotLightProgram.unload();
 		gDeferredMultiSpotLightProgram.unload();
 		gDeferredSunProgram.unload();
 		gDeferredBlurLightProgram.unload();
 		gDeferredSoftenProgram.unload();
+		gDeferredSoftenWaterProgram.unload();
 		gDeferredShadowProgram.unload();
 		gDeferredShadowCubeProgram.unload();
 		gDeferredShadowAlphaMaskProgram.unload();
@@ -1138,7 +1122,11 @@ 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();		
@@ -1147,6 +1135,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredPostGammaCorrectProgram.unload();
 		gFXAAProgram.unload();
 		gDeferredWaterProgram.unload();
+		gDeferredUnderWaterProgram.unload();
 		gDeferredWLSkyProgram.unload();
 		gDeferredWLCloudProgram.unload();
 		gDeferredStarProgram.unload();
@@ -1158,6 +1147,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		for (U32 i = 0; i < LLMaterial::SHADER_COUNT*2; ++i)
 		{
 			gDeferredMaterialProgram[i].unload();
+			gDeferredMaterialWaterProgram[i].unload();
 		}
 		return TRUE;
 	}
@@ -1242,11 +1232,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 	if (success)
 	{
 		gDeferredSkinnedAlphaProgram.mName = "Deferred Skinned Alpha Shader";
-		gDeferredSkinnedAlphaProgram.mFeatures.atmosphericHelpers = true;
 		gDeferredSkinnedAlphaProgram.mFeatures.hasObjectSkinning = true;
-		gDeferredSkinnedAlphaProgram.mFeatures.calculatesAtmospherics = true;
-		gDeferredSkinnedAlphaProgram.mFeatures.hasGamma = true;
-		gDeferredSkinnedAlphaProgram.mFeatures.hasAtmospherics = true;
 		gDeferredSkinnedAlphaProgram.mFeatures.calculatesLighting = false;
 		gDeferredSkinnedAlphaProgram.mFeatures.hasLighting = false;
 		gDeferredSkinnedAlphaProgram.mFeatures.isAlphaLighting = true;
@@ -1256,8 +1242,8 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredSkinnedAlphaProgram.mShaderFiles.push_back(make_pair("deferred/alphaF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredSkinnedAlphaProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 		gDeferredSkinnedAlphaProgram.addPermutation("USE_DIFFUSE_TEX", "1");
-		gDeferredSkinnedAlphaProgram.addPermutation("USE_VERTEX_COLOR", "1");
 		gDeferredSkinnedAlphaProgram.addPermutation("HAS_SKIN", "1");
+		gDeferredSkinnedAlphaProgram.addPermutation("USE_VERTEX_COLOR", "1");
 		gDeferredSkinnedAlphaProgram.addPermutation("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
 		success = gDeferredSkinnedAlphaProgram.createShader(NULL, NULL);
 		
@@ -1285,6 +1271,15 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 	gDeferredMaterialProgram[9+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
 	gDeferredMaterialProgram[13+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
 
+	gDeferredMaterialWaterProgram[1].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[5].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[9].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[13].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[1+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[5+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[9+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
+	gDeferredMaterialWaterProgram[13+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = false;
+
 	for (U32 i = 0; i < LLMaterial::SHADER_COUNT*2; ++i)
 	{
 		if (success)
@@ -1304,8 +1299,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 			bool has_skin = i & 0x10;
 			gDeferredMaterialProgram[i].addPermutation("HAS_SKIN",has_skin ? "1" : "0");
 
-			SINGLE_FP_PERMUTATION(gDeferredMaterialProgram[i]);
-
 			if (has_skin)
 			{
 				gDeferredMaterialProgram[i].mFeatures.hasObjectSkinning = true;
@@ -1313,6 +1306,34 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 			success = gDeferredMaterialProgram[i].createShader(NULL, NULL);
 		}
+
+		if (success)
+		{
+			gDeferredMaterialWaterProgram[i].mName = llformat("Deferred Underwater Material Shader %d", i);
+
+			U32 alpha_mode = i & 0x3;
+
+			gDeferredMaterialWaterProgram[i].mShaderFiles.clear();
+			gDeferredMaterialWaterProgram[i].mShaderFiles.push_back(make_pair("deferred/materialV.glsl", GL_VERTEX_SHADER_ARB));
+			gDeferredMaterialWaterProgram[i].mShaderFiles.push_back(make_pair("deferred/materialF.glsl", GL_FRAGMENT_SHADER_ARB));
+			gDeferredMaterialWaterProgram[i].mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+			gDeferredMaterialWaterProgram[i].mShaderGroup = LLGLSLShader::SG_WATER;
+
+			gDeferredMaterialWaterProgram[i].addPermutation("HAS_NORMAL_MAP", i & 0x8? "1" : "0");
+			gDeferredMaterialWaterProgram[i].addPermutation("HAS_SPECULAR_MAP", i & 0x4 ? "1" : "0");
+			gDeferredMaterialWaterProgram[i].addPermutation("DIFFUSE_ALPHA_MODE", llformat("%d", alpha_mode));
+			gDeferredMaterialWaterProgram[i].addPermutation("HAS_SUN_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
+			bool has_skin = i & 0x10;
+			gDeferredMaterialWaterProgram[i].addPermutation("HAS_SKIN",has_skin ? "1" : "0");
+			gDeferredMaterialWaterProgram[i].addPermutation("WATER_FOG","1");
+
+			if (has_skin)
+			{
+				gDeferredMaterialWaterProgram[i].mFeatures.hasObjectSkinning = true;
+			}
+
+			success = gDeferredMaterialWaterProgram[i].createShader(NULL, NULL);//&mWLUniforms);
+		}
 	}
 
 	gDeferredMaterialProgram[1].mFeatures.hasLighting = true;
@@ -1324,6 +1345,14 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 	gDeferredMaterialProgram[9+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
 	gDeferredMaterialProgram[13+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
 
+	gDeferredMaterialWaterProgram[1].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[5].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[9].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[13].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[1+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[5+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[9+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
+	gDeferredMaterialWaterProgram[13+LLMaterial::SHADER_COUNT].mFeatures.hasLighting = true;
 
 	
 	if (success)
@@ -1364,22 +1393,21 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredLightProgram.mShaderFiles.push_back(make_pair("deferred/pointLightF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredLightProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredLightProgram);
-
 		success = gDeferredLightProgram.createShader(NULL, NULL);
 	}
 
+	for (U32 i = 0; i < LL_DEFERRED_MULTI_LIGHT_COUNT; i++)
+	{
 	if (success)
 	{
-		gDeferredMultiLightProgram.mName = "Deferred MultiLight Shader";
-		gDeferredMultiLightProgram.mShaderFiles.clear();
-		gDeferredMultiLightProgram.mShaderFiles.push_back(make_pair("deferred/multiPointLightV.glsl", GL_VERTEX_SHADER_ARB));
-		gDeferredMultiLightProgram.mShaderFiles.push_back(make_pair("deferred/multiPointLightF.glsl", GL_FRAGMENT_SHADER_ARB));
-		gDeferredMultiLightProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-
-		SINGLE_FP_PERMUTATION(gDeferredMultiLightProgram);
-
-		success = gDeferredMultiLightProgram.createShader(NULL, NULL);
+			gDeferredMultiLightProgram[i].mName = llformat("Deferred MultiLight Shader %d", i);
+			gDeferredMultiLightProgram[i].mShaderFiles.clear();
+			gDeferredMultiLightProgram[i].mShaderFiles.push_back(make_pair("deferred/multiPointLightV.glsl", GL_VERTEX_SHADER_ARB));
+			gDeferredMultiLightProgram[i].mShaderFiles.push_back(make_pair("deferred/multiPointLightF.glsl", GL_FRAGMENT_SHADER_ARB));
+			gDeferredMultiLightProgram[i].mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+			gDeferredMultiLightProgram[i].addPermutation("LIGHT_COUNT", llformat("%d", i+1));
+			success = gDeferredMultiLightProgram[i].createShader(NULL, NULL);
+		}
 	}
 
 	if (success)
@@ -1390,8 +1418,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredSpotLightProgram.mShaderFiles.push_back(make_pair("deferred/spotLightF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredSpotLightProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredSpotLightProgram);
-
 		success = gDeferredSpotLightProgram.createShader(NULL, NULL);
 	}
 
@@ -1403,8 +1429,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredMultiSpotLightProgram.mShaderFiles.push_back(make_pair("deferred/multiSpotLightF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredMultiSpotLightProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredMultiSpotLightProgram);
-
 		success = gDeferredMultiSpotLightProgram.createShader(NULL, NULL);
 	}
 
@@ -1432,8 +1456,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredSunProgram.mShaderFiles.push_back(make_pair(fragment, GL_FRAGMENT_SHADER_ARB));
 		gDeferredSunProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredSunProgram);
-
 		success = gDeferredSunProgram.createShader(NULL, NULL);
 	}
 
@@ -1445,19 +1467,14 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredBlurLightProgram.mShaderFiles.push_back(make_pair("deferred/blurLightF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredBlurLightProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredBlurLightProgram);
-
 		success = gDeferredBlurLightProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
 	{
 		gDeferredAlphaProgram.mName = "Deferred Alpha Shader";
-		gDeferredAlphaProgram.mFeatures.atmosphericHelpers = true;
+
 		gDeferredAlphaProgram.mFeatures.calculatesLighting = false;
-		gDeferredAlphaProgram.mFeatures.calculatesAtmospherics = true;
-		gDeferredAlphaProgram.mFeatures.hasGamma = true;
-		gDeferredAlphaProgram.mFeatures.hasAtmospherics = true;
 		gDeferredAlphaProgram.mFeatures.hasLighting = false;
 		gDeferredAlphaProgram.mFeatures.isAlphaLighting = true;
 		gDeferredAlphaProgram.mFeatures.disableTextureIndex = true; //hack to disable auto-setup of texture channels
@@ -1474,12 +1491,10 @@ 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("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
+		gDeferredAlphaProgram.addPermutation("USE_VERTEX_COLOR", "1");
 		gDeferredAlphaProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredAlphaProgram);
-
 		success = gDeferredAlphaProgram.createShader(NULL, NULL);
 
 		// Hack
@@ -1489,6 +1504,72 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
+		gDeferredAlphaImpostorProgram.mName = "Deferred Alpha Shader";
+
+		gDeferredAlphaImpostorProgram.mFeatures.calculatesLighting = false;
+		gDeferredAlphaImpostorProgram.mFeatures.hasLighting = false;
+		gDeferredAlphaImpostorProgram.mFeatures.isAlphaLighting = true;
+		gDeferredAlphaImpostorProgram.mFeatures.disableTextureIndex = true; //hack to disable auto-setup of texture channels
+		if (mVertexShaderLevel[SHADER_DEFERRED] < 1)
+		{
+			gDeferredAlphaImpostorProgram.mFeatures.mIndexedTextureChannels = LLGLSLShader::sIndexedTextureChannels;
+		}
+		else
+		{ //shave off some texture units for shadow maps
+			gDeferredAlphaImpostorProgram.mFeatures.mIndexedTextureChannels = llmax(LLGLSLShader::sIndexedTextureChannels - 6, 1);
+		}
+
+		gDeferredAlphaImpostorProgram.mShaderFiles.clear();
+		gDeferredAlphaImpostorProgram.mShaderFiles.push_back(make_pair("deferred/alphaV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredAlphaImpostorProgram.mShaderFiles.push_back(make_pair("deferred/alphaF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredAlphaImpostorProgram.addPermutation("USE_INDEXED_TEX", "1");
+		gDeferredAlphaImpostorProgram.addPermutation("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
+		gDeferredAlphaImpostorProgram.addPermutation("USE_VERTEX_COLOR", "1");
+		gDeferredAlphaImpostorProgram.addPermutation("FOR_IMPOSTOR", "1");
+
+		gDeferredAlphaImpostorProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+
+		success = gDeferredAlphaImpostorProgram.createShader(NULL, NULL);
+
+		// Hack
+		gDeferredAlphaImpostorProgram.mFeatures.calculatesLighting = true;
+		gDeferredAlphaImpostorProgram.mFeatures.hasLighting = true;
+	}
+
+	if (success)
+	{
+		gDeferredAlphaWaterProgram.mName = "Deferred Alpha Underwater Shader";
+		gDeferredAlphaWaterProgram.mFeatures.calculatesLighting = false;
+		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("WATER_FOG", "1");
+		gDeferredAlphaWaterProgram.addPermutation("USE_VERTEX_COLOR", "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;
@@ -1517,6 +1598,54 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
+		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/fullbrightF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredFullbrightAlphaMaskProgram.addPermutation("HAS_ALPHA_MASK","1");
+		gDeferredFullbrightAlphaMaskProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		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;
@@ -1526,7 +1655,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredFullbrightShinyProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightShinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredFullbrightShinyProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredFullbrightShinyProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-		success = gDeferredFullbrightShinyProgram.createShader(NULL, &mShinyUniforms);
+		success = gDeferredFullbrightShinyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1556,7 +1685,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredSkinnedFullbrightShinyProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinySkinnedV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredSkinnedFullbrightShinyProgram.mShaderFiles.push_back(make_pair("deferred/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredSkinnedFullbrightShinyProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-		success = gDeferredSkinnedFullbrightShinyProgram.createShader(NULL, &mShinyUniforms);
+		success = gDeferredSkinnedFullbrightShinyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1584,7 +1713,21 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredWaterProgram.mShaderFiles.push_back(make_pair("deferred/waterV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredWaterProgram.mShaderFiles.push_back(make_pair("deferred/waterF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-		success = gDeferredWaterProgram.createShader(NULL, &mWaterUniforms);
+		success = gDeferredWaterProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
+		// load water shader
+		gDeferredUnderWaterProgram.mName = "Deferred Under Water Shader";
+		gDeferredUnderWaterProgram.mFeatures.calculatesAtmospherics = true;
+		gDeferredUnderWaterProgram.mFeatures.hasGamma = true;
+		gDeferredUnderWaterProgram.mFeatures.hasTransport = true;
+		gDeferredUnderWaterProgram.mShaderFiles.clear();
+		gDeferredUnderWaterProgram.mShaderFiles.push_back(make_pair("deferred/waterV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredUnderWaterProgram.mShaderFiles.push_back(make_pair("deferred/underWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredUnderWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		success = gDeferredUnderWaterProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1596,8 +1739,6 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 		gDeferredSoftenProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		SINGLE_FP_PERMUTATION(gDeferredSoftenProgram);
-
 		if (gSavedSettings.getBOOL("RenderDeferredSSAO"))
 		{ //if using SSAO, take screen space light map into account as if shadows are enabled
 			gDeferredSoftenProgram.mShaderLevel = llmax(gDeferredSoftenProgram.mShaderLevel, 2);
@@ -1608,6 +1749,25 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
+		gDeferredSoftenWaterProgram.mName = "Deferred Soften Underwater Shader";
+		gDeferredSoftenWaterProgram.mShaderFiles.clear();
+		gDeferredSoftenWaterProgram.mShaderFiles.push_back(make_pair("deferred/softenLightV.glsl", GL_VERTEX_SHADER_ARB));
+		gDeferredSoftenWaterProgram.mShaderFiles.push_back(make_pair("deferred/softenLightF.glsl", GL_FRAGMENT_SHADER_ARB));
+
+		gDeferredSoftenWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
+		gDeferredSoftenWaterProgram.addPermutation("WATER_FOG", "1");
+		gDeferredSoftenWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
+
+		if (gSavedSettings.getBOOL("RenderDeferredSSAO"))
+		{ //if using SSAO, take screen space light map into account as if shadows are enabled
+			gDeferredSoftenWaterProgram.mShaderLevel = llmax(gDeferredSoftenWaterProgram.mShaderLevel, 2);
+		}
+
+		success = gDeferredSoftenWaterProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
 		gDeferredShadowProgram.mName = "Deferred Shadow Shader";
 		gDeferredShadowProgram.mShaderFiles.clear();
 		gDeferredShadowProgram.mShaderFiles.push_back(make_pair("deferred/shadowV.glsl", GL_VERTEX_SHADER_ARB));
@@ -1649,7 +1809,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAvatarShadowProgram.mShaderFiles.push_back(make_pair("deferred/avatarShadowF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredAvatarShadowProgram.addPermutation("DEPTH_CLAMP", gGLManager.mHasDepthClamp ? "1" : "0");
 		gDeferredAvatarShadowProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-		success = gDeferredAvatarShadowProgram.createShader(NULL, &mAvatarUniforms);
+		success = gDeferredAvatarShadowProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1671,7 +1831,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredTerrainProgram.mShaderFiles.push_back(make_pair("deferred/terrainV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredTerrainProgram.mShaderFiles.push_back(make_pair("deferred/terrainF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredTerrainProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-		success = gDeferredTerrainProgram.createShader(NULL, &mTerrainUniforms);
+		success = gDeferredTerrainProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1682,18 +1842,14 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAvatarProgram.mShaderFiles.push_back(make_pair("deferred/avatarV.glsl", GL_VERTEX_SHADER_ARB));
 		gDeferredAvatarProgram.mShaderFiles.push_back(make_pair("deferred/avatarF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredAvatarProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
-		success = gDeferredAvatarProgram.createShader(NULL, &mAvatarUniforms);
+		success = gDeferredAvatarProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
 	{
 		gDeferredAvatarAlphaProgram.mName = "Avatar Alpha Shader";
-		gDeferredAvatarAlphaProgram.mFeatures.atmosphericHelpers = true;
 		gDeferredAvatarAlphaProgram.mFeatures.hasSkinning = true;
 		gDeferredAvatarAlphaProgram.mFeatures.calculatesLighting = false;
-		gDeferredAvatarAlphaProgram.mFeatures.calculatesAtmospherics = true;
-		gDeferredAvatarAlphaProgram.mFeatures.hasGamma = true;
-		gDeferredAvatarAlphaProgram.mFeatures.hasAtmospherics = true;
 		gDeferredAvatarAlphaProgram.mFeatures.hasLighting = false;
 		gDeferredAvatarAlphaProgram.mFeatures.isAlphaLighting = true;
 		gDeferredAvatarAlphaProgram.mFeatures.disableTextureIndex = true;
@@ -1705,7 +1861,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredAvatarAlphaProgram.addPermutation("HAS_SHADOW", mVertexShaderLevel[SHADER_DEFERRED] > 1 ? "1" : "0");
 		gDeferredAvatarAlphaProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 
-		success = gDeferredAvatarAlphaProgram.createShader(NULL, &mAvatarUniforms);
+		success = gDeferredAvatarAlphaProgram.createShader(NULL, NULL);
 
 		gDeferredAvatarAlphaProgram.mFeatures.calculatesLighting = true;
 		gDeferredAvatarAlphaProgram.mFeatures.hasLighting = true;
@@ -1780,7 +1936,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredWLSkyProgram.mShaderFiles.push_back(make_pair("deferred/skyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredWLSkyProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 		gDeferredWLSkyProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-		success = gDeferredWLSkyProgram.createShader(NULL, &mWLUniforms);
+		success = gDeferredWLSkyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1791,7 +1947,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredWLCloudProgram.mShaderFiles.push_back(make_pair("deferred/cloudsF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredWLCloudProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 		gDeferredWLCloudProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-		success = gDeferredWLCloudProgram.createShader(NULL, &mWLUniforms);
+		success = gDeferredWLCloudProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1802,7 +1958,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredStarProgram.mShaderFiles.push_back(make_pair("deferred/starsF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredStarProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 		gDeferredStarProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-		success = gDeferredStarProgram.createShader(NULL, &mWLUniforms);
+		success = gDeferredStarProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -1832,6 +1988,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectFullbrightNoColorProgram.unload();
 		gObjectFullbrightNoColorWaterProgram.unload();
 		gObjectSimpleProgram.unload();
+		gObjectSimpleImpostorProgram.unload();
 		gObjectPreviewProgram.unload();
 		gImpostorProgram.unload();
 		gObjectSimpleAlphaMaskProgram.unload();
@@ -2153,7 +2310,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectShinyNonIndexedProgram.mShaderFiles.push_back(make_pair("objects/shinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectShinyNonIndexedProgram.mShaderFiles.push_back(make_pair("objects/shinyF.glsl", GL_FRAGMENT_SHADER_ARB));		
 		gObjectShinyNonIndexedProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-		success = gObjectShinyNonIndexedProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectShinyNonIndexedProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2170,7 +2327,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectShinyNonIndexedWaterProgram.mShaderFiles.push_back(make_pair("objects/shinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectShinyNonIndexedWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
 		gObjectShinyNonIndexedWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
-		success = gObjectShinyNonIndexedWaterProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectShinyNonIndexedWaterProgram.createShader(NULL, NULL);
 	}
 	
 	if (success)
@@ -2186,7 +2343,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectFullbrightShinyNonIndexedProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectFullbrightShinyNonIndexedProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gObjectFullbrightShinyNonIndexedProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-		success = gObjectFullbrightShinyNonIndexedProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectFullbrightShinyNonIndexedProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2204,7 +2361,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectFullbrightShinyNonIndexedWaterProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gObjectFullbrightShinyNonIndexedWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
 		gObjectFullbrightShinyNonIndexedWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
-		success = gObjectFullbrightShinyNonIndexedWaterProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectFullbrightShinyNonIndexedWaterProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2254,6 +2411,27 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 
 	if (success)
 	{
+		gObjectSimpleImpostorProgram.mName = "Simple Impostor Shader";
+		gObjectSimpleImpostorProgram.mFeatures.calculatesLighting = true;
+		gObjectSimpleImpostorProgram.mFeatures.calculatesAtmospherics = true;
+		gObjectSimpleImpostorProgram.mFeatures.hasGamma = true;
+		gObjectSimpleImpostorProgram.mFeatures.hasAtmospherics = true;
+		gObjectSimpleImpostorProgram.mFeatures.hasLighting = true;
+		gObjectSimpleImpostorProgram.mFeatures.mIndexedTextureChannels = 0;
+		// force alpha mask version of lighting so we can weed out
+		// transparent pixels from impostor temp buffer
+		//
+		gObjectSimpleImpostorProgram.mFeatures.hasAlphaMask = true; 
+		gObjectSimpleImpostorProgram.mShaderFiles.clear();
+		gObjectSimpleImpostorProgram.mShaderFiles.push_back(make_pair("objects/simpleV.glsl", GL_VERTEX_SHADER_ARB));
+		gObjectSimpleImpostorProgram.mShaderFiles.push_back(make_pair("objects/simpleF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gObjectSimpleImpostorProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
+		
+		success = gObjectSimpleImpostorProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
 		gObjectSimpleWaterProgram.mName = "Simple Water Shader";
 		gObjectSimpleWaterProgram.mFeatures.calculatesLighting = true;
 		gObjectSimpleWaterProgram.mFeatures.calculatesAtmospherics = true;
@@ -2283,12 +2461,11 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectBumpProgram.mShaderFiles.push_back(make_pair("objects/bumpF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gObjectBumpProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
 		success = gObjectBumpProgram.createShader(NULL, NULL);
-
 		if (success)
 		{ //lldrawpoolbump assumes "texture0" has channel 0 and "texture1" has channel 1
 			gObjectBumpProgram.bind();
-			gObjectBumpProgram.uniform1i("texture0", 0);
-			gObjectBumpProgram.uniform1i("texture1", 1);
+			gObjectBumpProgram.uniform1i(sTexture0, 0);
+			gObjectBumpProgram.uniform1i(sTexture1, 1);
 			gObjectBumpProgram.unbind();
 		}
 	}
@@ -2437,7 +2614,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectShinyProgram.mShaderFiles.push_back(make_pair("objects/shinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectShinyProgram.mShaderFiles.push_back(make_pair("objects/shinyF.glsl", GL_FRAGMENT_SHADER_ARB));		
 		gObjectShinyProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-		success = gObjectShinyProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectShinyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2454,7 +2631,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectShinyWaterProgram.mShaderFiles.push_back(make_pair("objects/shinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectShinyWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
 		gObjectShinyWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
-		success = gObjectShinyWaterProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectShinyWaterProgram.createShader(NULL, NULL);
 	}
 	
 	if (success)
@@ -2470,7 +2647,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectFullbrightShinyProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyV.glsl", GL_VERTEX_SHADER_ARB));
 		gObjectFullbrightShinyProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gObjectFullbrightShinyProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-		success = gObjectFullbrightShinyProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectFullbrightShinyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2488,7 +2665,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 		gObjectFullbrightShinyWaterProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gObjectFullbrightShinyWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
 		gObjectFullbrightShinyWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;
-		success = gObjectFullbrightShinyWaterProgram.createShader(NULL, &mShinyUniforms);
+		success = gObjectFullbrightShinyWaterProgram.createShader(NULL, NULL);
 	}
 
 	if (mVertexShaderLevel[SHADER_AVATAR] > 0)
@@ -2576,7 +2753,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 			gSkinnedObjectFullbrightShinyProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinySkinnedV.glsl", GL_VERTEX_SHADER_ARB));
 			gSkinnedObjectFullbrightShinyProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 			gSkinnedObjectFullbrightShinyProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-			success = gSkinnedObjectFullbrightShinyProgram.createShader(NULL, &mShinyUniforms);
+			success = gSkinnedObjectFullbrightShinyProgram.createShader(NULL, NULL);
 		}
 
 		if (success)
@@ -2594,7 +2771,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 			gSkinnedObjectShinySimpleProgram.mShaderFiles.push_back(make_pair("objects/shinySimpleSkinnedV.glsl", GL_VERTEX_SHADER_ARB));
 			gSkinnedObjectShinySimpleProgram.mShaderFiles.push_back(make_pair("objects/shinyF.glsl", GL_FRAGMENT_SHADER_ARB));
 			gSkinnedObjectShinySimpleProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-			success = gSkinnedObjectShinySimpleProgram.createShader(NULL, &mShinyUniforms);
+			success = gSkinnedObjectShinySimpleProgram.createShader(NULL, NULL);
 		}
 
 		if (success)
@@ -2653,7 +2830,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 			gSkinnedObjectFullbrightShinyWaterProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinySkinnedV.glsl", GL_VERTEX_SHADER_ARB));
 			gSkinnedObjectFullbrightShinyWaterProgram.mShaderFiles.push_back(make_pair("objects/fullbrightShinyWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
 			gSkinnedObjectFullbrightShinyWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-			success = gSkinnedObjectFullbrightShinyWaterProgram.createShader(NULL, &mShinyUniforms);
+			success = gSkinnedObjectFullbrightShinyWaterProgram.createShader(NULL, NULL);
 		}
 
 		if (success)
@@ -2673,7 +2850,7 @@ BOOL LLViewerShaderMgr::loadShadersObject()
 			gSkinnedObjectShinySimpleWaterProgram.mShaderFiles.push_back(make_pair("objects/shinySimpleSkinnedV.glsl", GL_VERTEX_SHADER_ARB));
 			gSkinnedObjectShinySimpleWaterProgram.mShaderFiles.push_back(make_pair("objects/shinyWaterF.glsl", GL_FRAGMENT_SHADER_ARB));
 			gSkinnedObjectShinySimpleWaterProgram.mShaderLevel = mVertexShaderLevel[SHADER_OBJECT];
-			success = gSkinnedObjectShinySimpleWaterProgram.createShader(NULL, &mShinyUniforms);
+			success = gSkinnedObjectShinySimpleWaterProgram.createShader(NULL, NULL);
 		}
 	}
 
@@ -2714,7 +2891,7 @@ BOOL LLViewerShaderMgr::loadShadersAvatar()
 		gAvatarProgram.mShaderFiles.push_back(make_pair("avatar/avatarV.glsl", GL_VERTEX_SHADER_ARB));
 		gAvatarProgram.mShaderFiles.push_back(make_pair("avatar/avatarF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gAvatarProgram.mShaderLevel = mVertexShaderLevel[SHADER_AVATAR];
-		success = gAvatarProgram.createShader(NULL, &mAvatarUniforms);
+		success = gAvatarProgram.createShader(NULL, NULL);
 			
 		if (success)
 		{
@@ -2733,7 +2910,7 @@ BOOL LLViewerShaderMgr::loadShadersAvatar()
 			// Note: no cloth under water:
 			gAvatarWaterProgram.mShaderLevel = llmin(mVertexShaderLevel[SHADER_AVATAR], 1);	
 			gAvatarWaterProgram.mShaderGroup = LLGLSLShader::SG_WATER;				
-			success = gAvatarWaterProgram.createShader(NULL, &mAvatarUniforms);
+			success = gAvatarWaterProgram.createShader(NULL, NULL);
 		}
 
 		/// Keep track of avatar levels
@@ -2752,7 +2929,7 @@ BOOL LLViewerShaderMgr::loadShadersAvatar()
 		gAvatarPickProgram.mShaderFiles.push_back(make_pair("avatar/pickAvatarV.glsl", GL_VERTEX_SHADER_ARB));
 		gAvatarPickProgram.mShaderFiles.push_back(make_pair("avatar/pickAvatarF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gAvatarPickProgram.mShaderLevel = mVertexShaderLevel[SHADER_AVATAR];
-		success = gAvatarPickProgram.createShader(NULL, &mAvatarUniforms);
+		success = gAvatarPickProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -2874,7 +3051,7 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gSplatTextureRectProgram.bind();
-			gSplatTextureRectProgram.uniform1i("screenMap", 0);
+			gSplatTextureRectProgram.uniform1i(sScreenMap, 0);
 			gSplatTextureRectProgram.unbind();
 		}
 	}
@@ -2890,8 +3067,8 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gGlowCombineProgram.bind();
-			gGlowCombineProgram.uniform1i("glowMap", 0);
-			gGlowCombineProgram.uniform1i("screenMap", 1);
+			gGlowCombineProgram.uniform1i(sGlowMap, 0);
+			gGlowCombineProgram.uniform1i(sScreenMap, 1);
 			gGlowCombineProgram.unbind();
 		}
 	}
@@ -2907,8 +3084,8 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gGlowCombineFXAAProgram.bind();
-			gGlowCombineFXAAProgram.uniform1i("glowMap", 0);
-			gGlowCombineFXAAProgram.uniform1i("screenMap", 1);
+			gGlowCombineFXAAProgram.uniform1i(sGlowMap, 0);
+			gGlowCombineFXAAProgram.uniform1i(sScreenMap, 1);
 			gGlowCombineFXAAProgram.unbind();
 		}
 	}
@@ -2925,8 +3102,8 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gTwoTextureAddProgram.bind();
-			gTwoTextureAddProgram.uniform1i("tex0", 0);
-			gTwoTextureAddProgram.uniform1i("tex1", 1);
+			gTwoTextureAddProgram.uniform1i(sTex0, 0);
+			gTwoTextureAddProgram.uniform1i(sTex1, 1);
 		}
 	}
 
@@ -2941,7 +3118,7 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gOneTextureNoColorProgram.bind();
-			gOneTextureNoColorProgram.uniform1i("tex0", 0);
+			gOneTextureNoColorProgram.uniform1i(sTex0, 0);
 		}
 	}
 
@@ -2956,7 +3133,7 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 		if (success)
 		{
 			gSolidColorProgram.bind();
-			gSolidColorProgram.uniform1i("tex0", 0);
+			gSolidColorProgram.uniform1i(sTex0, 0);
 			gSolidColorProgram.unbind();
 		}
 	}
@@ -3003,6 +3180,26 @@ BOOL LLViewerShaderMgr::loadShadersInterface()
 
 	if (success)
 	{
+		gDownsampleDepthProgram.mName = "DownsampleDepth Shader";
+		gDownsampleDepthProgram.mShaderFiles.clear();
+		gDownsampleDepthProgram.mShaderFiles.push_back(make_pair("interface/downsampleDepthV.glsl", GL_VERTEX_SHADER_ARB));
+		gDownsampleDepthProgram.mShaderFiles.push_back(make_pair("interface/downsampleDepthF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDownsampleDepthProgram.mShaderLevel = mVertexShaderLevel[SHADER_INTERFACE];
+		success = gDownsampleDepthProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
+		gDownsampleDepthRectProgram.mName = "DownsampleDepthRect Shader";
+		gDownsampleDepthRectProgram.mShaderFiles.clear();
+		gDownsampleDepthRectProgram.mShaderFiles.push_back(make_pair("interface/downsampleDepthV.glsl", GL_VERTEX_SHADER_ARB));
+		gDownsampleDepthRectProgram.mShaderFiles.push_back(make_pair("interface/downsampleDepthRectF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDownsampleDepthRectProgram.mShaderLevel = mVertexShaderLevel[SHADER_INTERFACE];
+		success = gDownsampleDepthRectProgram.createShader(NULL, NULL);
+	}
+
+	if (success)
+	{
 		gAlphaMaskProgram.mName = "Alpha Mask Shader";
 		gAlphaMaskProgram.mShaderFiles.clear();
 		gAlphaMaskProgram.mShaderFiles.push_back(make_pair("interface/alphamaskV.glsl", GL_VERTEX_SHADER_ARB));
@@ -3040,7 +3237,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
 		gWLSkyProgram.mShaderFiles.push_back(make_pair("windlight/skyF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gWLSkyProgram.mShaderLevel = mVertexShaderLevel[SHADER_WINDLIGHT];
 		gWLSkyProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-		success = gWLSkyProgram.createShader(NULL, &mWLUniforms);
+		success = gWLSkyProgram.createShader(NULL, NULL);
 	}
 
 	if (success)
@@ -3052,7 +3249,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
 		gWLCloudProgram.mShaderFiles.push_back(make_pair("windlight/cloudsF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gWLCloudProgram.mShaderLevel = mVertexShaderLevel[SHADER_WINDLIGHT];
 		gWLCloudProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-		success = gWLCloudProgram.createShader(NULL, &mWLUniforms);
+		success = gWLCloudProgram.createShader(NULL, NULL);
 	}
 
 	return success;
@@ -3167,3 +3364,4 @@ LLViewerShaderMgr::shader_iter LLViewerShaderMgr::endShaders() const
 {
 	return mShaderList.end();
 }
+