Merge branch 'DRTVWR-546' of ssh://bitbucket.org/lindenlab/viewer into DRTVWR-546

15 files changed, 247 insertions, 96 deletions

diff --git a/indra/cmake/Tracy.cmake b/indra/cmake/Tracy.cmake
index 1b8c3db2e2..cfff956bcf 100644
--- a/indra/cmake/Tracy.cmake
+++ b/indra/cmake/Tracy.cmake
@@ -7,7 +7,7 @@ if (USE_TRACY)
   set(TRACY_INCLUDE_DIR ${LIBS_PREBUILT_DIR}/include/tracy) 
 
 # See: indra/llcommon/llprofiler.h
-  add_definitions(-DLL_PROFILER_CONFIGURATION=2)
+  add_definitions(-DLL_PROFILER_CONFIGURATION=3)
   use_prebuilt_binary(tracy)
 
   if (WINDOWS)
diff --git a/indra/llcommon/llsd.cpp b/indra/llcommon/llsd.cpp
index 57b746889d..605f6bf0e3 100644
--- a/indra/llcommon/llsd.cpp
+++ b/indra/llcommon/llsd.cpp
@@ -400,6 +400,7 @@ namespace
 	
 	ImplMap& ImplMap::makeMap(LLSD::Impl*& var)
 	{
+        LL_PROFILE_ZONE_SCOPED;
 		if (shared())
 		{
 			ImplMap* i = new ImplMap(mData);
@@ -414,18 +415,21 @@ namespace
 	
 	bool ImplMap::has(const LLSD::String& k) const
 	{
+        LL_PROFILE_ZONE_SCOPED;
 		DataMap::const_iterator i = mData.find(k);
 		return i != mData.end();
 	}
 	
 	LLSD ImplMap::get(const LLSD::String& k) const
 	{
+        LL_PROFILE_ZONE_SCOPED;
 		DataMap::const_iterator i = mData.find(k);
 		return (i != mData.end()) ? i->second : LLSD();
 	}
 
 	LLSD ImplMap::getKeys() const
 	{ 
+        LL_PROFILE_ZONE_SCOPED;
 		LLSD keys = LLSD::emptyArray();
 		DataMap::const_iterator iter = mData.begin();
 		while (iter != mData.end())
@@ -438,11 +442,13 @@ namespace
 
 	void ImplMap::insert(const LLSD::String& k, const LLSD& v)
 	{
+        LL_PROFILE_ZONE_SCOPED;
 		mData.insert(DataMap::value_type(k, v));
 	}
 	
 	void ImplMap::erase(const LLSD::String& k)
 	{
+        LL_PROFILE_ZONE_SCOPED;
 		mData.erase(k);
 	}
 	
@@ -684,6 +690,7 @@ const LLSD::Impl& LLSD::Impl::safe(const Impl* impl)
 
 ImplMap& LLSD::Impl::makeMap(Impl*& var)
 {
+    LL_PROFILE_ZONE_SCOPED;
 	ImplMap* im = new ImplMap;
 	reset(var, im);
 	return *im;
@@ -887,11 +894,16 @@ LLSD& LLSD::with(const String& k, const LLSD& v)
 										}
 void LLSD::erase(const String& k)		{ makeMap(impl).erase(k); }
 
-LLSD&		LLSD::operator[](const String& k)
-										{ return makeMap(impl).ref(k); }
+LLSD& LLSD::operator[](const String& k)
+{ 
+    LL_PROFILE_ZONE_SCOPED;
+    return makeMap(impl).ref(k); 
+}
 const LLSD& LLSD::operator[](const String& k) const
-										{ return safe(impl).ref(k); }
-
+{ 
+    LL_PROFILE_ZONE_SCOPED;
+    return safe(impl).ref(k); 
+}
 
 LLSD LLSD::emptyArray()
 {
@@ -914,10 +926,16 @@ LLSD& LLSD::with(Integer i, const LLSD& v)
 LLSD& LLSD::append(const LLSD& v)		{ return makeArray(impl).append(v); }
 void LLSD::erase(Integer i)				{ makeArray(impl).erase(i); }
 
-LLSD&		LLSD::operator[](Integer i)
-										{ return makeArray(impl).ref(i); }
+LLSD& LLSD::operator[](Integer i)
+{ 
+    LL_PROFILE_ZONE_SCOPED;
+    return makeArray(impl).ref(i); 
+}
 const LLSD& LLSD::operator[](Integer i) const
-										{ return safe(impl).ref(i); }
+{ 
+    LL_PROFILE_ZONE_SCOPED;
+    return safe(impl).ref(i);
+}
 
 static const char *llsd_dump(const LLSD &llsd, bool useXMLFormat)
 {
diff --git a/indra/llcommon/llsd.h b/indra/llcommon/llsd.h
index 5b6d5545af..b8ddf21596 100644
--- a/indra/llcommon/llsd.h
+++ b/indra/llcommon/llsd.h
@@ -290,9 +290,17 @@ public:
 		LLSD& with(const String&, const LLSD&);
 		
 		LLSD& operator[](const String&);
-		LLSD& operator[](const char* c)			{ return (*this)[String(c)]; }
+		LLSD& operator[](const char* c)			
+        { 
+            LL_PROFILE_ZONE_SCOPED;
+            return (*this)[String(c)]; 
+        }
 		const LLSD& operator[](const String&) const;
-		const LLSD& operator[](const char* c) const	{ return (*this)[String(c)]; }
+		const LLSD& operator[](const char* c) const	
+        { 
+            LL_PROFILE_ZONE_SCOPED;
+            return (*this)[String(c)]; 
+        }
 	//@}
 	
 	/** @name Array Values */
diff --git a/indra/llinventory/llsettingsbase.cpp b/indra/llinventory/llsettingsbase.cpp
index 61b59e35aa..89a4eebf26 100644
--- a/indra/llinventory/llsettingsbase.cpp
+++ b/indra/llinventory/llsettingsbase.cpp
@@ -683,6 +683,7 @@ bool LLSettingsBase::Validator::verifyStringLength(LLSD &value, S32 length)
 //=========================================================================
 void LLSettingsBlender::update(const LLSettingsBase::BlendFactor& blendf)
 {
+    LL_PROFILE_ZONE_SCOPED;
     F64 res = setBlendFactor(blendf);
     llassert(res >= 0.0 && res <= 1.0);
     (void)res;
@@ -713,6 +714,7 @@ F64 LLSettingsBlender::setBlendFactor(const LLSettingsBase::BlendFactor& blendf_
 
 void LLSettingsBlender::triggerComplete()
 {
+    LL_PROFILE_ZONE_SCOPED;
     if (mTarget)
         mTarget->replaceSettings(mFinal->getSettings());
     LLSettingsBlender::ptr_t hold = shared_from_this();   // prevents this from deleting too soon
@@ -725,11 +727,13 @@ const LLSettingsBase::BlendFactor LLSettingsBlenderTimeDelta::MIN_BLEND_DELTA(FL
 
 LLSettingsBase::BlendFactor LLSettingsBlenderTimeDelta::calculateBlend(const LLSettingsBase::TrackPosition& spanpos, const LLSettingsBase::TrackPosition& spanlen) const
 {
+    LL_PROFILE_ZONE_SCOPED;
     return LLSettingsBase::BlendFactor(fmod((F64)spanpos, (F64)spanlen) / (F64)spanlen);
 }
 
 bool LLSettingsBlenderTimeDelta::applyTimeDelta(const LLSettingsBase::Seconds& timedelta)
 {
+    LL_PROFILE_ZONE_SCOPED;
     mTimeSpent += timedelta;
 
     if (mTimeSpent > mBlendSpan)
diff --git a/indra/llinventory/llsettingssky.cpp b/indra/llinventory/llsettingssky.cpp
index 81937dbda5..00c1edb55a 100644
--- a/indra/llinventory/llsettingssky.cpp
+++ b/indra/llinventory/llsettingssky.cpp
@@ -444,6 +444,7 @@ void LLSettingsSky::replaceWithSky(LLSettingsSky::ptr_t pother)
 
 void LLSettingsSky::blend(const LLSettingsBase::ptr_t &end, F64 blendf) 
 {
+    LL_PROFILE_ZONE_SCOPED;
     llassert(getSettingsType() == end->getSettingsType());
 
     LLSettingsSky::ptr_t other = PTR_NAMESPACE::dynamic_pointer_cast<LLSettingsSky>(end);
@@ -1022,6 +1023,7 @@ LLColor3 LLSettingsSky::getLightDiffuse() const
 
 LLColor3 LLSettingsSky::getColor(const std::string& key, const LLColor3& default_value) const
 {
+    LL_PROFILE_ZONE_SCOPED;
     if (mSettings.has(SETTING_LEGACY_HAZE) && mSettings[SETTING_LEGACY_HAZE].has(key))
     {
         return LLColor3(mSettings[SETTING_LEGACY_HAZE][key]);
@@ -1035,6 +1037,7 @@ LLColor3 LLSettingsSky::getColor(const std::string& key, const LLColor3& default
 
 F32 LLSettingsSky::getFloat(const std::string& key, F32 default_value) const
 {
+    LL_PROFILE_ZONE_SCOPED;
     if (mSettings.has(SETTING_LEGACY_HAZE) && mSettings[SETTING_LEGACY_HAZE].has(key))
     {
         return mSettings[SETTING_LEGACY_HAZE][key].asReal();
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp
index 84eac00c65..0e4753fcc6 100644
--- a/indra/llrender/llglslshader.cpp
+++ b/indra/llrender/llglslshader.cpp
@@ -1104,6 +1104,7 @@ S32 LLGLSLShader::disableTexture(S32 uniform, LLTexUnit::eTextureType mode, LLTe
 
 void LLGLSLShader::uniform1i(U32 index, GLint x)
 {
+    LL_PROFILE_ZONE_SCOPED
     if (mProgramObject)
     {   
         if (mUniform.size() <= index)
@@ -1114,7 +1115,7 @@ void LLGLSLShader::uniform1i(U32 index, GLint x)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             if (iter == mValue.end() || iter->second.mV[0] != x)
             {
                 glUniform1iARB(mUniform[index], x);
@@ -1126,6 +1127,7 @@ void LLGLSLShader::uniform1i(U32 index, GLint x)
 
 void LLGLSLShader::uniform1f(U32 index, GLfloat x)
 {
+    LL_PROFILE_ZONE_SCOPED
     if (mProgramObject)
     {   
         if (mUniform.size() <= index)
@@ -1136,7 +1138,7 @@ void LLGLSLShader::uniform1f(U32 index, GLfloat x)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             if (iter == mValue.end() || iter->second.mV[0] != x)
             {
                 glUniform1fARB(mUniform[index], x);
@@ -1158,7 +1160,7 @@ void LLGLSLShader::uniform2f(U32 index, GLfloat x, GLfloat y)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(x,y,0.f,0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec))
             {
@@ -1181,7 +1183,7 @@ void LLGLSLShader::uniform3f(U32 index, GLfloat x, GLfloat y, GLfloat z)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(x,y,z,0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec))
             {
@@ -1204,7 +1206,7 @@ void LLGLSLShader::uniform4f(U32 index, GLfloat x, GLfloat y, GLfloat z, GLfloat
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(x,y,z,w);
             if (iter == mValue.end() || shouldChange(iter->second,vec))
             {
@@ -1227,7 +1229,7 @@ void LLGLSLShader::uniform1iv(U32 index, U32 count, const GLint* v)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(v[0],0.f,0.f,0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
             {
@@ -1250,7 +1252,7 @@ void LLGLSLShader::uniform1fv(U32 index, U32 count, const GLfloat* v)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(v[0],0.f,0.f,0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
             {
@@ -1273,7 +1275,7 @@ void LLGLSLShader::uniform2fv(U32 index, U32 count, const GLfloat* v)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(v[0],v[1],0.f,0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
             {
@@ -1296,7 +1298,7 @@ void LLGLSLShader::uniform3fv(U32 index, U32 count, const GLfloat* v)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(v[0],v[1],v[2],0.f);
             if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
             {
@@ -1319,10 +1321,11 @@ void LLGLSLShader::uniform4fv(U32 index, U32 count, const GLfloat* v)
 
         if (mUniform[index] >= 0)
         {
-            std::map<GLint, LLVector4>::iterator iter = mValue.find(mUniform[index]);
+            const auto& iter = mValue.find(mUniform[index]);
             LLVector4 vec(v[0],v[1],v[2],v[3]);
             if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
             {
+                LL_PROFILE_ZONE_SCOPED;
                 glUniform4fvARB(mUniform[index], count, v);
                 mValue[mUniform[index]] = vec;
             }
@@ -1460,7 +1463,7 @@ void LLGLSLShader::uniform1i(const LLStaticHashedString& uniform, GLint v)
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(v,0.f,0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec))
         {
@@ -1476,7 +1479,7 @@ void LLGLSLShader::uniform2i(const LLStaticHashedString& uniform, GLint i, GLint
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(i,j,0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec))
         {
@@ -1493,7 +1496,7 @@ void LLGLSLShader::uniform1f(const LLStaticHashedString& uniform, GLfloat v)
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(v,0.f,0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec))
         {
@@ -1509,7 +1512,7 @@ void LLGLSLShader::uniform2f(const LLStaticHashedString& uniform, GLfloat x, GLf
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(x,y,0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec))
         {
@@ -1526,7 +1529,7 @@ void LLGLSLShader::uniform3f(const LLStaticHashedString& uniform, GLfloat x, GLf
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(x,y,z,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec))
         {
@@ -1542,7 +1545,7 @@ void LLGLSLShader::uniform1fv(const LLStaticHashedString& uniform, U32 count, co
 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(v[0],0.f,0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
         {
@@ -1558,7 +1561,7 @@ void LLGLSLShader::uniform2fv(const LLStaticHashedString& uniform, U32 count, co
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(v[0],v[1],0.f,0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
         {
@@ -1574,7 +1577,7 @@ void LLGLSLShader::uniform3fv(const LLStaticHashedString& uniform, U32 count, co
                 
     if (location >= 0)
     {
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         LLVector4 vec(v[0],v[1],v[2],0.f);
         if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
         {
@@ -1591,12 +1594,11 @@ void LLGLSLShader::uniform4fv(const LLStaticHashedString& uniform, U32 count, co
     if (location >= 0)
     {
         LLVector4 vec(v);
-        std::map<GLint, LLVector4>::iterator iter = mValue.find(location);
+        const auto& iter = mValue.find(location);
         if (iter == mValue.end() || shouldChange(iter->second,vec) || count != 1)
         {
-            stop_glerror();
+            LL_PROFILE_ZONE_SCOPED;
             glUniform4fvARB(location, count, v);
-            stop_glerror();
             mValue[location] = vec;
         }
     }
@@ -1636,3 +1638,27 @@ void LLGLSLShader::setMinimumAlpha(F32 minimum)
     gGL.flush();
     uniform1f(LLShaderMgr::MINIMUM_ALPHA, minimum);
 }
+
+void LLShaderUniforms::apply(LLGLSLShader* shader)
+{
+    LL_PROFILE_ZONE_SCOPED;
+    for (auto& uniform : mIntegers)
+    {
+        shader->uniform1i(uniform.mUniform, uniform.mValue);
+    }
+
+    for (auto& uniform : mFloats)
+    {
+        shader->uniform1f(uniform.mUniform, uniform.mValue);
+    }
+
+    for (auto& uniform : mVectors)
+    {
+        shader->uniform4fv(uniform.mUniform, 1, uniform.mValue.mV);
+    }
+
+    for (auto& uniform : mVector3s)
+    {
+        shader->uniform3fv(uniform.mUniform, 1, uniform.mValue.mV);
+    }
+}
diff --git a/indra/llrender/llglslshader.h b/indra/llrender/llglslshader.h
index 7cf6d3c941..3b23cf1b28 100644
--- a/indra/llrender/llglslshader.h
+++ b/indra/llrender/llglslshader.h
@@ -30,6 +30,7 @@
 #include "llgl.h"
 #include "llrender.h"
 #include "llstaticstringtable.h"
+#include <unordered_map>
 
 class LLShaderFeatures
 {
@@ -64,16 +65,79 @@ public:
 	LLShaderFeatures();
 };
 
+// ============= Structure for caching shader uniforms ===============
+class LLGLSLShader;
+
+class LLShaderUniforms
+{
+public:
+
+    template<typename T>
+    struct UniformSetting
+    {
+        S32 mUniform;
+        T mValue;
+    };
+
+    typedef UniformSetting<S32> IntSetting;
+    typedef UniformSetting<F32> FloatSetting;
+    typedef UniformSetting<LLVector4> VectorSetting;
+    typedef UniformSetting<LLVector3> Vector3Setting;
+
+    void clear()
+    {
+        mIntegers.resize(0);
+        mFloats.resize(0);
+        mVectors.resize(0);
+        mVector3s.resize(0);
+    }
+
+    void uniform1i(S32 index, S32 value)
+    {
+        mIntegers.push_back({ index, value });
+    }
+
+    void uniform1f(S32 index, F32 value)
+    {
+        mFloats.push_back({ index, value });
+    }
+
+    void uniform4fv(S32 index, const LLVector4& value)
+    {
+        mVectors.push_back({ index, value });
+    }
+    
+    void uniform4fv(S32 index, const F32* value)
+    {
+        mVectors.push_back({ index, LLVector4(value) });
+    }
+
+    void uniform3fv(S32 index, const LLVector3& value)
+    {
+        mVector3s.push_back({ index, value });
+    }
+
+    void apply(LLGLSLShader* shader);
+   
+
+    std::vector<IntSetting> mIntegers;
+    std::vector<FloatSetting> mFloats;
+    std::vector<VectorSetting> mVectors;
+    std::vector<Vector3Setting> mVector3s;
+};
 class LLGLSLShader
 {
 public:
 
-	enum 
+    // enum primarily used to control application sky settings uniforms
+	typedef enum 
 	{
-		SG_DEFAULT = 0,
-		SG_SKY,
-		SG_WATER
-	};
+		SG_DEFAULT = 0,  // not sky or water specific
+		SG_SKY,  //
+		SG_WATER,
+        SG_ANY,
+        SG_COUNT
+	} eGroup;
 	
 	static std::set<LLGLSLShader*> sInstances;
 	static bool sProfileEnabled;
@@ -190,13 +254,15 @@ public:
 	U32 mAttributeMask;  //mask of which reserved attributes are set (lines up with LLVertexBuffer::getTypeMask())
 	std::vector<GLint> mUniform;   //lookup table of uniform enum to uniform location
 	LLStaticStringTable<GLint> mUniformMap; //lookup map of uniform name to uniform location
-	std::map<GLint, std::string> mUniformNameMap; //lookup map of uniform location to uniform name
-	std::map<GLint, LLVector4> mValue; //lookup map of uniform location to last known value
+    typedef std::unordered_map<GLint, std::string> uniform_name_map_t;
+    typedef std::unordered_map<GLint, LLVector4> uniform_value_map_t;
+    uniform_name_map_t mUniformNameMap; //lookup map of uniform location to uniform name
+	uniform_value_map_t mValue; //lookup map of uniform location to last known value
 	std::vector<GLint> mTexture;
 	S32 mTotalUniformSize;
 	S32 mActiveTextureChannels;
 	S32 mShaderLevel;
-	S32 mShaderGroup;
+	S32 mShaderGroup; // see LLGLSLShader::eGroup
 	BOOL mUniformsDirty;
 	LLShaderFeatures mFeatures;
 	std::vector< std::pair< std::string, GLenum > > mShaderFiles;
diff --git a/indra/newview/lldrawpoolbump.cpp b/indra/newview/lldrawpoolbump.cpp
index f316d121ab..d75884cc16 100644
--- a/indra/newview/lldrawpoolbump.cpp
+++ b/indra/newview/lldrawpoolbump.cpp
@@ -1062,6 +1062,7 @@ void LLBumpImageList::updateImages()
 // Note: the caller SHOULD NOT keep the pointer that this function returns.  It may be updated as more data arrives.
 LLViewerTexture* LLBumpImageList::getBrightnessDarknessImage(LLViewerFetchedTexture* src_image, U8 bump_code )
 {
+    LL_PROFILE_ZONE_SCOPED;
 	llassert( (bump_code == BE_BRIGHTNESS) || (bump_code == BE_DARKNESS) );
 
 	LLViewerTexture* bump = NULL;
diff --git a/indra/newview/lldrawpoolterrain.cpp b/indra/newview/lldrawpoolterrain.cpp
index 37dc80e2b7..34a8b6b2cc 100644
--- a/indra/newview/lldrawpoolterrain.cpp
+++ b/indra/newview/lldrawpoolterrain.cpp
@@ -343,8 +343,6 @@ void LLDrawPoolTerrain::renderFullShader()
 
     LLSettingsWater::ptr_t pwater = LLEnvironment::instance().getCurrentWater();
 
-    ((LLSettingsVOWater*)pwater.get())->updateShader(shader);
-
 	//
 	// detail texture 1
 	//
diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index 0c3d8f3098..8c8dc3f3d2 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -182,8 +182,6 @@ void LLDrawPoolWLSky::renderSkyHazeDeferred(const LLVector3& camPosLocal, F32 ca
         sky_shader->bindTexture(LLShaderMgr::RAINBOW_MAP, rainbow_tex);
         sky_shader->bindTexture(LLShaderMgr::HALO_MAP,  halo_tex);
 
-        ((LLSettingsVOSky*)psky.get())->updateShader(sky_shader);
-
         F32 moisture_level  = (float)psky->getSkyMoistureLevel();
         F32 droplet_radius  = (float)psky->getSkyDropletRadius();
         F32 ice_level       = (float)psky->getSkyIceLevel();
@@ -406,8 +404,6 @@ void LLDrawPoolWLSky::renderSkyCloudsDeferred(const LLVector3& camPosLocal, F32
         cloudshader->uniform1f(LLShaderMgr::CLOUD_VARIANCE, cloud_variance);
         cloudshader->uniform1f(LLShaderMgr::SUN_MOON_GLOW_FACTOR, psky->getSunMoonGlowFactor());
 
-        ((LLSettingsVOSky*)psky.get())->updateShader(cloudshader);
-
 		/// Render the skydome
         renderDome(camPosLocal, camHeightLocal, cloudshader);
 
@@ -462,8 +458,6 @@ void LLDrawPoolWLSky::renderSkyClouds(const LLVector3& camPosLocal, F32 camHeigh
         cloudshader->uniform1f(LLShaderMgr::CLOUD_VARIANCE, cloud_variance);
         cloudshader->uniform1f(LLShaderMgr::SUN_MOON_GLOW_FACTOR, psky->getSunMoonGlowFactor());
 
-        ((LLSettingsVOSky*)psky.get())->updateShader(cloudshader);
-
 		/// Render the skydome
         renderDome(camPosLocal, camHeightLocal, cloudshader);
 
diff --git a/indra/newview/llenvironment.cpp b/indra/newview/llenvironment.cpp
index 8881d11802..69d3075928 100644
--- a/indra/newview/llenvironment.cpp
+++ b/indra/newview/llenvironment.cpp
@@ -1471,6 +1471,7 @@ LLEnvironment::DayInstance::ptr_t LLEnvironment::getSharedEnvironmentInstance()
 
 void LLEnvironment::updateEnvironment(LLSettingsBase::Seconds transition, bool forced)
 {
+    LL_PROFILE_ZONE_SCOPED;
     DayInstance::ptr_t pinstance = getSelectedEnvironmentInstance();
 
     if ((mCurrentEnvironment != pinstance) || forced)
@@ -1488,6 +1489,8 @@ void LLEnvironment::updateEnvironment(LLSettingsBase::Seconds transition, bool f
         {
             mCurrentEnvironment = pinstance;
         }
+
+        updateSettingsUniforms();
     }
 }
 
@@ -1614,6 +1617,8 @@ void LLEnvironment::update(const LLViewerCamera * cam)
 
     stop_glerror();
 
+    updateSettingsUniforms();
+
     // *TODO: potential optimization - this block may only need to be
     // executed some of the time.  For example for water shaders only.
     {
@@ -1648,10 +1653,16 @@ void LLEnvironment::updateCloudScroll()
 }
 
 // static
-void LLEnvironment::updateGLVariablesForSettings(LLGLSLShader *shader, const LLSettingsBase::ptr_t &psetting)
+void LLEnvironment::updateGLVariablesForSettings(LLShaderUniforms* uniforms, const LLSettingsBase::ptr_t &psetting)
 {
     LL_RECORD_BLOCK_TIME(FTM_SHADER_PARAM_UPDATE);
 
+    for (int i = 0; i < LLGLSLShader::SG_COUNT; ++i)
+    {
+        uniforms[i].clear();
+    }
+
+    LLShaderUniforms* shader = &uniforms[LLGLSLShader::SG_ANY];
     //_WARNS("RIDER") << "----------------------------------------------------------------" << LL_ENDL;
     LLSettingsBase::parammapping_t params = psetting->getParameterMap();
     for (auto &it: params)
@@ -1694,7 +1705,7 @@ void LLEnvironment::updateGLVariablesForSettings(LLGLSLShader *shader, const LLS
         {
             LLVector4 vect4(value);
             //_WARNS("RIDER") << "pushing '" << (*it).first << "' as " << vect4 << LL_ENDL;
-            shader->uniform4fv(it.second.getShaderKey(), 1, vect4.mV);
+            shader->uniform4fv(it.second.getShaderKey(), vect4 );
             break;
         }
 
@@ -1707,17 +1718,30 @@ void LLEnvironment::updateGLVariablesForSettings(LLGLSLShader *shader, const LLS
         default:
             break;
         }
-        stop_glerror();
     }
     //_WARNS("RIDER") << "----------------------------------------------------------------" << LL_ENDL;
 
-    psetting->applySpecial(shader);
+    psetting->applySpecial(uniforms);
+}
+
+void LLEnvironment::updateShaderUniforms(LLGLSLShader* shader)
+{
+    LL_PROFILE_ZONE_SCOPED;
+
+    // apply uniforms that should be applied to all shaders
+    mSkyUniforms[LLGLSLShader::SG_ANY].apply(shader);
+    mWaterUniforms[LLGLSLShader::SG_ANY].apply(shader);
+
+    // apply uniforms specific to the given shader's shader group
+    auto group = shader->mShaderGroup;
+    mSkyUniforms[group].apply(shader);
+    mWaterUniforms[group].apply(shader);
 }
 
-void LLEnvironment::updateShaderUniforms(LLGLSLShader *shader)
+void LLEnvironment::updateSettingsUniforms()
 {
-    updateGLVariablesForSettings(shader, mCurrentEnvironment->getWater());
-    updateGLVariablesForSettings(shader, mCurrentEnvironment->getSky());
+    updateGLVariablesForSettings(mWaterUniforms, mCurrentEnvironment->getWater());
+    updateGLVariablesForSettings(mSkyUniforms, mCurrentEnvironment->getSky());
 }
 
 void LLEnvironment::recordEnvironment(S32 parcel_id, LLEnvironment::EnvironmentInfo::ptr_t envinfo, LLSettingsBase::Seconds transition)
@@ -2618,6 +2642,7 @@ LLEnvironment::DayInstance::ptr_t LLEnvironment::DayInstance::clone() const
 
 bool LLEnvironment::DayInstance::applyTimeDelta(const LLSettingsBase::Seconds& delta)
 {
+    LL_PROFILE_ZONE_SCOPED;
     ptr_t keeper(shared_from_this());   // makes sure that this does not go away while it is being worked on.
 
     bool changed(false);
diff --git a/indra/newview/llenvironment.h b/indra/newview/llenvironment.h
index 7cbf2d25bb..3568fbcfd1 100644
--- a/indra/newview/llenvironment.h
+++ b/indra/newview/llenvironment.h
@@ -38,11 +38,12 @@
 
 #include "llatmosphere.h"
 
+#include "llglslshader.h"
+
 #include <boost/signals2.hpp>
 
 //-------------------------------------------------------------------------
 class LLViewerCamera;
-class LLGLSLShader;
 class LLParcel;
 
 //-------------------------------------------------------------------------
@@ -50,8 +51,8 @@ class LLEnvironment : public LLSingleton<LLEnvironment>
 {
     LLSINGLETON_C11(LLEnvironment);
     LOG_CLASS(LLEnvironment);
-
 public:
+
     static const F64Seconds     TRANSITION_INSTANT;
     static const F64Seconds     TRANSITION_FAST;
     static const F64Seconds     TRANSITION_DEFAULT;
@@ -131,9 +132,14 @@ public:
 
     void                        update(const LLViewerCamera * cam);
 
-    static void                 updateGLVariablesForSettings(LLGLSLShader *shader, const LLSettingsBase::ptr_t &psetting);
+    static void                 updateGLVariablesForSettings(LLShaderUniforms* uniforms, const LLSettingsBase::ptr_t &psetting);
+    
+    // apply current sky settings to given shader
     void                        updateShaderUniforms(LLGLSLShader *shader);
 
+    // prepare settings to be applied to shaders (call whenever settings are updated)
+    void                        updateSettingsUniforms();
+
     void                        setSelectedEnvironment(EnvSelection_t env, LLSettingsBase::Seconds transition = TRANSITION_DEFAULT, bool forced = false);
     EnvSelection_t              getSelectedEnvironment() const                  { return mSelectedEnvironment; }
 
@@ -234,6 +240,11 @@ public:
 
     void                        handleEnvironmentPush(LLSD &message);
 
+    //cached uniform values from LLSD values
+    LLShaderUniforms mWaterUniforms[LLGLSLShader::SG_COUNT];
+    LLShaderUniforms mSkyUniforms[LLGLSLShader::SG_COUNT];
+    // =======================================================================================
+
     class DayInstance: public std::enable_shared_from_this<DayInstance>
     {
     public:
@@ -288,6 +299,7 @@ public:
         LLSettingsDay::ptr_t        mDayCycle;
         LLSettingsSky::ptr_t        mSky;
         LLSettingsWater::ptr_t      mWater;
+
         S32                         mSkyTrack;
 
         bool                        mInitialized;
diff --git a/indra/newview/llsettingsvo.cpp b/indra/newview/llsettingsvo.cpp
index 1e5b893cbc..6a88a8ef2c 100644
--- a/indra/newview/llsettingsvo.cpp
+++ b/indra/newview/llsettingsvo.cpp
@@ -637,6 +637,7 @@ LLSD LLSettingsVOSky::convertToLegacy(const LLSettingsSky::ptr_t &psky, bool isA
 //-------------------------------------------------------------------------
 void LLSettingsVOSky::updateSettings()
 {
+    LL_PROFILE_ZONE_SCOPED;
     LLSettingsSky::updateSettings();
     LLVector3 sun_direction  = getSunDirection();
     LLVector3 moon_direction = getMoonDirection();
@@ -665,55 +666,55 @@ void LLSettingsVOSky::updateSettings()
 
 void LLSettingsVOSky::applySpecial(void *ptarget, bool force)
 {
-    LLGLSLShader *shader = (LLGLSLShader *)ptarget;
-
     LLVector4 light_direction = LLEnvironment::instance().getClampedLightNorm();
 
-    if (shader->mShaderGroup == LLGLSLShader::SG_DEFAULT)
+    LLShaderUniforms* shader = &((LLShaderUniforms*)ptarget)[LLGLSLShader::SG_DEFAULT];
 	{        
-    shader->uniform4fv(LLViewerShaderMgr::LIGHTNORM, 1, light_direction.mV);
-	shader->uniform3fv(LLShaderMgr::WL_CAMPOSLOCAL, 1, LLViewerCamera::getInstance()->getOrigin().mV);
+        shader->uniform4fv(LLViewerShaderMgr::LIGHTNORM, light_direction);
+        shader->uniform3fv(LLShaderMgr::WL_CAMPOSLOCAL, LLViewerCamera::getInstance()->getOrigin());
 	} 
-	else if (shader->mShaderGroup == LLGLSLShader::SG_SKY)
+    
+    shader = &((LLShaderUniforms*)ptarget)[LLGLSLShader::SG_SKY];
 	{
-    shader->uniform4fv(LLViewerShaderMgr::LIGHTNORM, 1, light_direction.mV);        
+        shader->uniform4fv(LLViewerShaderMgr::LIGHTNORM, light_direction);
 
-    // Legacy? SETTING_CLOUD_SCROLL_RATE("cloud_scroll_rate")
-    LLVector4 vect_c_p_d1(mSettings[SETTING_CLOUD_POS_DENSITY1]);
-    LLVector4 cloud_scroll( LLEnvironment::instance().getCloudScrollDelta() );
+        // Legacy? SETTING_CLOUD_SCROLL_RATE("cloud_scroll_rate")
+        LLVector4 vect_c_p_d1(mSettings[SETTING_CLOUD_POS_DENSITY1]);
+        LLVector4 cloud_scroll( LLEnvironment::instance().getCloudScrollDelta() );
 
-    // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll
-    // Keep in Sync!
-    // * indra\newview\llsettingsvo.cpp
-    // * indra\newview\app_settings\shaders\class2\windlight\cloudsV.glsl
-    // * indra\newview\app_settings\shaders\class1\deferred\cloudsV.glsl
-    cloud_scroll[0] = -cloud_scroll[0];
-    vect_c_p_d1 += cloud_scroll;
-    shader->uniform4fv(LLShaderMgr::CLOUD_POS_DENSITY1, 1, vect_c_p_d1.mV);
+        // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll
+        // Keep in Sync!
+        // * indra\newview\llsettingsvo.cpp
+        // * indra\newview\app_settings\shaders\class2\windlight\cloudsV.glsl
+        // * indra\newview\app_settings\shaders\class1\deferred\cloudsV.glsl
+        cloud_scroll[0] = -cloud_scroll[0];
+        vect_c_p_d1 += cloud_scroll;
+        shader->uniform4fv(LLShaderMgr::CLOUD_POS_DENSITY1, vect_c_p_d1);
 
-    LLSettingsSky::ptr_t psky = LLEnvironment::instance().getCurrentSky();
+        LLSettingsSky::ptr_t psky = LLEnvironment::instance().getCurrentSky();
 
-    LLColor4 sunDiffuse = psky->getSunlightColor();
-    LLColor4 moonDiffuse = psky->getMoonlightColor();
+        LLVector4 sunDiffuse = LLVector4(psky->getSunlightColor().mV);
+        LLVector4 moonDiffuse = LLVector4(psky->getMoonlightColor().mV);
 
-    shader->uniform4fv(LLShaderMgr::SUNLIGHT_COLOR, 1, sunDiffuse.mV);
-    shader->uniform4fv(LLShaderMgr::MOONLIGHT_COLOR, 1, moonDiffuse.mV);
+        shader->uniform4fv(LLShaderMgr::SUNLIGHT_COLOR, sunDiffuse);
+        shader->uniform4fv(LLShaderMgr::MOONLIGHT_COLOR, moonDiffuse);
 
-    LLColor4 cloud_color(psky->getCloudColor(), 1.0);
-    shader->uniform4fv(LLShaderMgr::CLOUD_COLOR, 1, cloud_color.mV);
+        LLVector4 cloud_color(LLVector3(psky->getCloudColor().mV), 1.0);
+        shader->uniform4fv(LLShaderMgr::CLOUD_COLOR, cloud_color);
 	}
     
+    shader = &((LLShaderUniforms*)ptarget)[LLGLSLShader::SG_ANY];
     shader->uniform1f(LLShaderMgr::SCENE_LIGHT_STRENGTH, mSceneLightStrength);
 
     LLColor4 ambient(getTotalAmbient());
-    shader->uniform4fv(LLShaderMgr::AMBIENT, 1, ambient.mV);
+    shader->uniform4fv(LLShaderMgr::AMBIENT, LLVector4(ambient.mV));
 
     shader->uniform1i(LLShaderMgr::SUN_UP_FACTOR, getIsSunUp() ? 1 : 0);
     shader->uniform1f(LLShaderMgr::SUN_MOON_GLOW_FACTOR, getSunMoonGlowFactor());
     shader->uniform1f(LLShaderMgr::DENSITY_MULTIPLIER, getDensityMultiplier());
     shader->uniform1f(LLShaderMgr::DISTANCE_MULTIPLIER, getDistanceMultiplier());
     
-    F32 g             = getGamma();    
+    F32 g             = getGamma();
     F32 display_gamma = gSavedSettings.getF32("RenderDeferredDisplayGamma");
 
     shader->uniform1f(LLShaderMgr::GAMMA, g);
@@ -907,11 +908,11 @@ LLSD LLSettingsVOWater::convertToLegacy(const LLSettingsWater::ptr_t &pwater)
 //-------------------------------------------------------------------------
 void LLSettingsVOWater::applySpecial(void *ptarget, bool force)
 {
-    LLGLSLShader *shader = (LLGLSLShader *)ptarget;
-
     LLEnvironment& env = LLEnvironment::instance();
 
-    if (force || (shader->mShaderGroup == LLGLSLShader::SG_WATER))
+    auto group = LLGLSLShader::SG_WATER;
+    LLShaderUniforms* shader = &((LLShaderUniforms*)ptarget)[group];
+    
 	{
         F32 water_height = env.getWaterHeight();
 
@@ -935,7 +936,7 @@ void LLSettingsVOWater::applySpecial(void *ptarget, bool force)
 
         LLVector4 waterPlane(enorm.v[0], enorm.v[1], enorm.v[2], -ep.dot(enorm));
 
-        shader->uniform4fv(LLShaderMgr::WATER_WATERPLANE, 1, waterPlane.mV);
+        shader->uniform4fv(LLShaderMgr::WATER_WATERPLANE, waterPlane.mV);
 
         LLVector4 light_direction = env.getClampedLightNorm();
 
@@ -950,18 +951,19 @@ void LLSettingsVOWater::applySpecial(void *ptarget, bool force)
         shader->uniform1f(LLShaderMgr::WATER_FOGDENSITY, waterFogDensity);
 
         LLColor4 fog_color(env.getCurrentWater()->getWaterFogColor(), 0.0f);
-        shader->uniform4fv(LLShaderMgr::WATER_FOGCOLOR, 1, fog_color.mV);
+        shader->uniform4fv(LLShaderMgr::WATER_FOGCOLOR, fog_color.mV);
 
         F32 blend_factor = env.getCurrentWater()->getBlendFactor();
         shader->uniform1f(LLShaderMgr::BLEND_FACTOR, blend_factor);
 
         // update to normal lightnorm, water shader itself will use rotated lightnorm as necessary
-        shader->uniform4fv(LLShaderMgr::LIGHTNORM, 1, light_direction.mV);
+        shader->uniform4fv(LLShaderMgr::LIGHTNORM, light_direction.mV);
     }
 }
 
 void LLSettingsVOWater::updateSettings()
 {
+    LL_PROFILE_ZONE_SCOPED;
     // base class clears dirty flag so as to not trigger recursive update
     LLSettingsBase::updateSettings();
 
diff --git a/indra/newview/llsettingsvo.h b/indra/newview/llsettingsvo.h
index 65136ad2f5..caa3ac18d3 100644
--- a/indra/newview/llsettingsvo.h
+++ b/indra/newview/llsettingsvo.h
@@ -102,8 +102,6 @@ public:
 
     bool isAdvanced() const { return  m_isAdvanced; }
 
-    virtual void updateShader(LLGLSLShader* shader) { applySpecial(shader, true); }
-
 protected:
     LLSettingsVOSky();
 
@@ -136,8 +134,6 @@ public:
 
     static LLSD     convertToLegacy(const ptr_t &);
 
-    virtual void    updateShader(LLGLSLShader* shader) { applySpecial(shader, true); }
-
 protected:
     LLSettingsVOWater();
 
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 5ef3819de4..c4976c4bbc 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -8427,8 +8427,6 @@ void LLPipeline::bindDeferredShader(LLGLSLShader& shader, LLRenderTarget* light_
 
     LLEnvironment& environment = LLEnvironment::instance();
     LLSettingsSky::ptr_t sky = environment.getCurrentSky();
-
-    static_cast<LLSettingsVOSky*>(sky.get())->updateShader(&shader);
 }
 
 LLColor3 pow3f(LLColor3 v, F32 f)