SL-16386 remove references to (const true) LLGLSLShader::sNoFixedFunction

39 files changed, 320 insertions, 1734 deletions

diff --git a/indra/llappearance/lltexlayer.cpp b/indra/llappearance/lltexlayer.cpp
index 26e0ae9086..9af59c7da4 100644
--- a/indra/llappearance/lltexlayer.cpp
+++ b/indra/llappearance/lltexlayer.cpp
@@ -144,17 +144,8 @@ BOOL LLTexLayerSetBuffer::renderTexLayerSet(LLRenderTarget* bound_target)
 
 	BOOL success = TRUE;
 	
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
-	if (use_shaders)
-	{
-		gAlphaMaskProgram.bind();
-		gAlphaMaskProgram.setMinimumAlpha(0.004f);
-	}
-	else
-	{
-		gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.00f);
-	}
+	gAlphaMaskProgram.bind();
+	gAlphaMaskProgram.setMinimumAlpha(0.004f);
 
 	LLVertexBuffer::unbind();
 
@@ -166,10 +157,7 @@ BOOL LLTexLayerSetBuffer::renderTexLayerSet(LLRenderTarget* bound_target)
 
 	midRenderTexLayerSet(success);
 
-	if (use_shaders)
-	{
-		gAlphaMaskProgram.unbind();
-	}
+	gAlphaMaskProgram.unbind();
 
 	LLVertexBuffer::unbind();
 	
@@ -392,8 +380,6 @@ BOOL LLTexLayerSet::render( S32 x, S32 y, S32 width, S32 height, LLRenderTarget*
 		}
 	}
 
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
 	LLGLSUIDefault gls_ui;
 	LLGLDepthTest gls_depth(GL_FALSE, GL_FALSE);
 	gGL.setColorMask(true, true);
@@ -402,20 +388,14 @@ BOOL LLTexLayerSet::render( S32 x, S32 y, S32 width, S32 height, LLRenderTarget*
 	{
 		gGL.flush();
 		LLGLDisable no_alpha(GL_ALPHA_TEST);
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.0f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.0f);
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 		gGL.color4f( 0.f, 0.f, 0.f, 1.f );
 
 		gl_rect_2d_simple( width, height );
 
 		gGL.flush();
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.004f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.004f);
 	}
 
 	if (mIsVisible)
@@ -442,10 +422,7 @@ BOOL LLTexLayerSet::render( S32 x, S32 y, S32 width, S32 height, LLRenderTarget*
 
 		gGL.setSceneBlendType(LLRender::BT_REPLACE);
 		LLGLDisable no_alpha(GL_ALPHA_TEST);
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.f);
 
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 		gGL.color4f( 0.f, 0.f, 0.f, 0.f );
@@ -454,10 +431,7 @@ BOOL LLTexLayerSet::render( S32 x, S32 y, S32 width, S32 height, LLRenderTarget*
 		gGL.setSceneBlendType(LLRender::BT_ALPHA);
 
 		gGL.flush();
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.004f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.004f);
 	}
 
 	return success;
@@ -542,8 +516,6 @@ void LLTexLayerSet::renderAlphaMaskTextures(S32 x, S32 y, S32 width, S32 height,
     LL_PROFILE_ZONE_SCOPED;
 	const LLTexLayerSetInfo *info = getInfo();
 	
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
 	gGL.setColorMask(false, true);
 	gGL.setSceneBlendType(LLRender::BT_REPLACE);
 	
@@ -568,20 +540,14 @@ void LLTexLayerSet::renderAlphaMaskTextures(S32 x, S32 y, S32 width, S32 height,
 		// Set the alpha channel to one (clean up after previous blending)
 		gGL.flush();
 		LLGLDisable no_alpha(GL_ALPHA_TEST);
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.f);
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 		gGL.color4f( 0.f, 0.f, 0.f, 1.f );
 		
 		gl_rect_2d_simple( width, height );
 		
 		gGL.flush();
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.004f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.004f);
 	}
 	
 	// (Optional) Mask out part of the baked texture with alpha masks
@@ -1128,13 +1094,6 @@ BOOL LLTexLayer::render(S32 x, S32 y, S32 width, S32 height, LLRenderTarget* bou
 	// *TODO: Is this correct?
 	//gPipeline.disableLights();
 	stop_glerror();
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glDisable(GL_LIGHTING);
-	}
-	stop_glerror();
-
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
 
 	LLColor4 net_color;
 	BOOL color_specified = findNetColor(&net_color);
@@ -1221,10 +1180,7 @@ BOOL LLTexLayer::render(S32 x, S32 y, S32 width, S32 height, LLRenderTarget* bou
 					LLGLDisable alpha_test(no_alpha_test ? GL_ALPHA_TEST : 0);
 					if (no_alpha_test)
 					{
-						if (use_shaders)
-						{
-							gAlphaMaskProgram.setMinimumAlpha(0.f);
-						}
+						gAlphaMaskProgram.setMinimumAlpha(0.f);
 					}
 					
 					LLTexUnit::eTextureAddressMode old_mode = tex->getAddressMode();
@@ -1238,10 +1194,7 @@ BOOL LLTexLayer::render(S32 x, S32 y, S32 width, S32 height, LLRenderTarget* bou
 					gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 					if (no_alpha_test)
 					{
-						if (use_shaders)
-						{
-							gAlphaMaskProgram.setMinimumAlpha(0.004f);
-						}
+						gAlphaMaskProgram.setMinimumAlpha(0.004f);
 					}
 				}
 			}
@@ -1275,18 +1228,12 @@ BOOL LLTexLayer::render(S32 x, S32 y, S32 width, S32 height, LLRenderTarget* bou
 		color_specified )
 	{
 		LLGLDisable no_alpha(GL_ALPHA_TEST);
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.000f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.000f);
 
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 		gGL.color4fv( net_color.mV );
 		gl_rect_2d_simple( width, height );
-		if (use_shaders)
-		{
-			gAlphaMaskProgram.setMinimumAlpha(0.004f);
-		}
+		gAlphaMaskProgram.setMinimumAlpha(0.004f);
 	}
 
 	if( alpha_mask_specified || getInfo()->mWriteAllChannels )
@@ -1374,25 +1321,17 @@ BOOL LLTexLayer::blendAlphaTexture(S32 x, S32 y, S32 width, S32 height)
 
 	gGL.flush();
 	
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
 	if( !getInfo()->mStaticImageFileName.empty() )
 	{
 		LLGLTexture* tex = LLTexLayerStaticImageList::getInstance()->getTexture( getInfo()->mStaticImageFileName, getInfo()->mStaticImageIsMask );
 		if( tex )
 		{
 			LLGLSNoAlphaTest gls_no_alpha_test;
-			if (use_shaders)
-			{
-				gAlphaMaskProgram.setMinimumAlpha(0.f);
-			}
+			gAlphaMaskProgram.setMinimumAlpha(0.f);
 			gGL.getTexUnit(0)->bind(tex, TRUE);
 			gl_rect_2d_simple_tex( width, height );
 			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-			if (use_shaders)
-			{
-				gAlphaMaskProgram.setMinimumAlpha(0.004f);
-			}
+			gAlphaMaskProgram.setMinimumAlpha(0.004f);
 		}
 		else
 		{
@@ -1407,18 +1346,11 @@ BOOL LLTexLayer::blendAlphaTexture(S32 x, S32 y, S32 width, S32 height)
 			if (tex)
 			{
 				LLGLSNoAlphaTest gls_no_alpha_test;
-				if (use_shaders)
-				{
-					gAlphaMaskProgram.setMinimumAlpha(0.f);
-				}
+				gAlphaMaskProgram.setMinimumAlpha(0.f);
 				gGL.getTexUnit(0)->bind(tex);
 				gl_rect_2d_simple_tex( width, height );
 				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-				success = TRUE;
-				if (use_shaders)
-				{
-					gAlphaMaskProgram.setMinimumAlpha(0.004f);
-				}
+				gAlphaMaskProgram.setMinimumAlpha(0.004f);
 			}
 		}
 	}
@@ -1443,13 +1375,7 @@ void LLTexLayer::renderMorphMasks(S32 x, S32 y, S32 width, S32 height, const LLC
 
 	llassert( !mParamAlphaList.empty() );
 
-	bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
-	if (use_shaders)
-	{
-		gAlphaMaskProgram.setMinimumAlpha(0.f);
-	}
-
+	gAlphaMaskProgram.setMinimumAlpha(0.f);
 	gGL.setColorMask(false, true);
 
 	LLTexLayerParamAlpha* first_param = *mParamAlphaList.begin();
@@ -1534,10 +1460,7 @@ void LLTexLayer::renderMorphMasks(S32 x, S32 y, S32 width, S32 height, const LLC
 		gl_rect_2d_simple( width, height );
 	}
 
-	if (use_shaders)
-	{
-		gAlphaMaskProgram.setMinimumAlpha(0.004f);
-	}
+	gAlphaMaskProgram.setMinimumAlpha(0.004f);
 
 	LLGLSUIDefault gls_ui;
 
diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index d7f7b2f58e..d2faa5f3ae 100644
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -195,26 +195,6 @@ void LLCubeMap::enableTexture(S32 stage)
 void LLCubeMap::enableTextureCoords(S32 stage)
 {
 	mTextureCoordStage = stage;
-	if (!LLGLSLShader::sNoFixedFunction && gGLManager.mHasCubeMap && stage >= 0 && LLCubeMap::sUseCubeMaps)
-	{
-		if (stage > 0)
-		{
-			gGL.getTexUnit(stage)->activate();
-		}
-		
-		glEnable(GL_TEXTURE_GEN_R);
-		glEnable(GL_TEXTURE_GEN_S);
-		glEnable(GL_TEXTURE_GEN_T);
-
-		glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
-		glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
-		glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP);
-		
-		if (stage > 0)
-		{
-			gGL.getTexUnit(0)->activate();
-		}
-	}
 }
 
 void LLCubeMap::disable(void)
@@ -237,20 +217,6 @@ void LLCubeMap::disableTexture(void)
 
 void LLCubeMap::disableTextureCoords(void)
 {
-	if (!LLGLSLShader::sNoFixedFunction && gGLManager.mHasCubeMap && mTextureCoordStage >= 0 && LLCubeMap::sUseCubeMaps)
-	{
-		if (mTextureCoordStage > 0)
-		{
-			gGL.getTexUnit(mTextureCoordStage)->activate();
-		}
-		glDisable(GL_TEXTURE_GEN_S);
-		glDisable(GL_TEXTURE_GEN_T);
-		glDisable(GL_TEXTURE_GEN_R);
-		if (mTextureCoordStage > 0)
-		{
-			gGL.getTexUnit(0)->activate();
-		}
-	}
 }
 
 void LLCubeMap::setMatrix(S32 stage)
diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index b49b14615f..58183adfce 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -1936,207 +1936,30 @@ void LLGLState::checkTextureChannels(const std::string& msg)
 #endif
 }
 
-void LLGLState::checkClientArrays(const std::string& msg, U32 data_mask)
-{
-	if (!gDebugGL || LLGLSLShader::sNoFixedFunction)
-	{
-		return;
-	}
-
-	stop_glerror();
-	BOOL error = FALSE;
-
-	GLint active_texture;
-	glGetIntegerv(GL_CLIENT_ACTIVE_TEXTURE_ARB, &active_texture);
-
-	if (active_texture != GL_TEXTURE0_ARB)
-	{
-		LL_WARNS() << "Client active texture corrupted: " << active_texture << LL_ENDL;
-		if (gDebugSession)
-		{
-			gFailLog << "Client active texture corrupted: " << active_texture << std::endl;
-		}
-		error = TRUE;
-	}
-
-	/*glGetIntegerv(GL_ACTIVE_TEXTURE_ARB, &active_texture);
-	if (active_texture != GL_TEXTURE0_ARB)
-	{
-		LL_WARNS() << "Active texture corrupted: " << active_texture << LL_ENDL;
-		if (gDebugSession)
-		{
-			gFailLog << "Active texture corrupted: " << active_texture << std::endl;
-		}
-		error = TRUE;
-	}*/
-
-	static const char* label[] =
-	{
-		"GL_VERTEX_ARRAY",
-		"GL_NORMAL_ARRAY",
-		"GL_COLOR_ARRAY",
-		"GL_TEXTURE_COORD_ARRAY"
-	};
-
-	static GLint value[] =
-	{
-		GL_VERTEX_ARRAY,
-		GL_NORMAL_ARRAY,
-		GL_COLOR_ARRAY,
-		GL_TEXTURE_COORD_ARRAY
-	};
-
-	static const U32 mask[] = 
-	{ //copied from llvertexbuffer.h
-		0x0001, //MAP_VERTEX,
-		0x0002, //MAP_NORMAL,
-		0x0010, //MAP_COLOR,
-		0x0004, //MAP_TEXCOORD
-	};
-
-
-	for (S32 j = 1; j < 4; j++)
-	{
-		if (glIsEnabled(value[j]))
-		{
-			if (!(mask[j] & data_mask))
-			{
-				error = TRUE;
-				LL_WARNS("RenderState") << "GL still has " << label[j] << " enabled." << LL_ENDL;
-				if (gDebugSession)
-				{
-					gFailLog << "GL still has " << label[j] << " enabled." << std::endl;
-				}
-			}
-		}
-		else
-		{
-			if (mask[j] & data_mask)
-			{
-				error = TRUE;
-				LL_WARNS("RenderState") << "GL does not have " << label[j] << " enabled." << LL_ENDL;
-				if (gDebugSession)
-				{
-					gFailLog << "GL does not have " << label[j] << " enabled." << std::endl;
-				}
-			}
-		}
-	}
-
-	glClientActiveTextureARB(GL_TEXTURE1_ARB);
-	gGL.getTexUnit(1)->activate();
-	if (glIsEnabled(GL_TEXTURE_COORD_ARRAY))
-	{
-		if (!(data_mask & 0x0008))
-		{
-			error = TRUE;
-			LL_WARNS("RenderState") << "GL still has GL_TEXTURE_COORD_ARRAY enabled on channel 1." << LL_ENDL;
-			if (gDebugSession)
-			{
-				gFailLog << "GL still has GL_TEXTURE_COORD_ARRAY enabled on channel 1." << std::endl;
-			}
-		}
-	}
-	else
-	{
-		if (data_mask & 0x0008)
-		{
-			error = TRUE;
-			LL_WARNS("RenderState") << "GL does not have GL_TEXTURE_COORD_ARRAY enabled on channel 1." << LL_ENDL;
-			if (gDebugSession)
-			{
-				gFailLog << "GL does not have GL_TEXTURE_COORD_ARRAY enabled on channel 1." << std::endl;
-			}
-		}
-	}
-
-	/*if (glIsEnabled(GL_TEXTURE_2D))
-	{
-		if (!(data_mask & 0x0008))
-		{
-			error = TRUE;
-			LL_WARNS("RenderState") << "GL still has GL_TEXTURE_2D enabled on channel 1." << LL_ENDL;
-			if (gDebugSession)
-			{
-				gFailLog << "GL still has GL_TEXTURE_2D enabled on channel 1." << std::endl;
-			}
-		}
-	}
-	else
-	{
-		if (data_mask & 0x0008)
-		{
-			error = TRUE;
-			LL_WARNS("RenderState") << "GL does not have GL_TEXTURE_2D enabled on channel 1." << LL_ENDL;
-			if (gDebugSession)
-			{
-				gFailLog << "GL does not have GL_TEXTURE_2D enabled on channel 1." << std::endl;
-			}
-		}
-	}*/
-
-	glClientActiveTextureARB(GL_TEXTURE0_ARB);
-	gGL.getTexUnit(0)->activate();
-
-	if (LLGLSLShader::sNoFixedFunction)
-	{	//make sure vertex attribs are all disabled
-		GLint count;
-		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS_ARB, &count);
-		for (GLint i = 0; i < count; i++)
-		{
-			GLint enabled;
-			glGetVertexAttribivARB((GLuint) i, GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB, &enabled);
-			if (enabled)
-			{
-				error = TRUE;
-				LL_WARNS("RenderState") << "GL still has vertex attrib array " << i << " enabled." << LL_ENDL;
-				if (gDebugSession)
-				{
-					gFailLog <<  "GL still has vertex attrib array " << i << " enabled." << std::endl;
-				}
-			}
-		}
-	}
-
-	if (error)
-	{
-		if (gDebugSession)
-		{
-			ll_fail("LLGLState::checkClientArrays failed.");
-		}
-		else
-		{
-			LL_GL_ERRS << "GL client array corruption detected.  " << msg << LL_ENDL;
-		}
-	}
-}
-
 ///////////////////////////////////////////////////////////////////////
 
 LLGLState::LLGLState(LLGLenum state, S32 enabled) :
 	mState(state), mWasEnabled(FALSE), mIsEnabled(FALSE)
 {
     LL_PROFILE_ZONE_SCOPED;
-	if (LLGLSLShader::sNoFixedFunction)
-	{ //always ignore state that's deprecated post GL 3.0
-		switch (state)
-		{
-			case GL_ALPHA_TEST:
-			case GL_NORMALIZE:
-			case GL_TEXTURE_GEN_R:
-			case GL_TEXTURE_GEN_S:
-			case GL_TEXTURE_GEN_T:
-			case GL_TEXTURE_GEN_Q:
-			case GL_LIGHTING:
-			case GL_COLOR_MATERIAL:
-			case GL_FOG:
-			case GL_LINE_STIPPLE:
-			case GL_POLYGON_STIPPLE:
-				mState = 0;
-				break;
-		}
+	switch (state)
+	{
+		case GL_ALPHA_TEST:
+		case GL_NORMALIZE:
+		case GL_TEXTURE_GEN_R:
+		case GL_TEXTURE_GEN_S:
+		case GL_TEXTURE_GEN_T:
+		case GL_TEXTURE_GEN_Q:
+		case GL_LIGHTING:
+		case GL_COLOR_MATERIAL:
+		case GL_FOG:
+		case GL_LINE_STIPPLE:
+		case GL_POLYGON_STIPPLE:
+			mState = 0;
+			break;
 	}
 
+
 	stop_glerror();
 	if (mState)
 	{
@@ -2688,22 +2511,10 @@ LLGLSPipelineSkyBox::LLGLSPipelineSkyBox()
 , mCullFace(GL_CULL_FACE)
 , mSquashClip()
 { 
-    if (!LLGLSLShader::sNoFixedFunction)
-    {
-        glDisable(GL_LIGHTING);
-        glDisable(GL_FOG);
-        glDisable(GL_CLIP_PLANE0);
-    }
 }
 
 LLGLSPipelineSkyBox::~LLGLSPipelineSkyBox()
 {
-    if (!LLGLSLShader::sNoFixedFunction)
-    {
-        glEnable(GL_LIGHTING);
-        glEnable(GL_FOG);
-        glEnable(GL_CLIP_PLANE0);
-    }
 }
 
 LLGLSPipelineDepthTestSkyBox::LLGLSPipelineDepthTestSkyBox(bool depth_test, bool depth_write)
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index 6e1f5e6deb..386d12d70a 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -266,7 +266,6 @@ public:
 	static void dumpStates();
 	static void checkStates(const std::string& msg = "");
 	static void checkTextureChannels(const std::string& msg = "");
-	static void checkClientArrays(const std::string& msg = "", U32 data_mask = 0);
 	
 protected:
 	static boost::unordered_map<LLGLenum, LLGLboolean> sStateMap;
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp
index 2f1ce0eec9..220e88386a 100644
--- a/indra/llrender/llglslshader.cpp
+++ b/indra/llrender/llglslshader.cpp
@@ -50,7 +50,6 @@ using std::string;
 GLhandleARB LLGLSLShader::sCurBoundShader = 0;
 LLGLSLShader* LLGLSLShader::sCurBoundShaderPtr = NULL;
 S32 LLGLSLShader::sIndexedTextureChannels = 0;
-bool LLGLSLShader::sNoFixedFunction = false;
 bool LLGLSLShader::sProfileEnabled = false;
 std::set<LLGLSLShader*> LLGLSLShader::sInstances;
 U64 LLGLSLShader::sTotalTimeElapsed = 0;
diff --git a/indra/llrender/llglslshader.h b/indra/llrender/llglslshader.h
index 6fdb789087..85e83dbcb9 100644
--- a/indra/llrender/llglslshader.h
+++ b/indra/llrender/llglslshader.h
@@ -148,7 +148,6 @@ public:
 	static GLhandleARB sCurBoundShader;
 	static LLGLSLShader* sCurBoundShaderPtr;
 	static S32 sIndexedTextureChannels;
-	static bool sNoFixedFunction;
 
 	static void initProfile();
 	static void finishProfile(bool emit_report = true);
diff --git a/indra/llrender/llrender.cpp b/indra/llrender/llrender.cpp
index 0c180ed50d..899c61ccb7 100644
--- a/indra/llrender/llrender.cpp
+++ b/indra/llrender/llrender.cpp
@@ -128,29 +128,12 @@ void LLTexUnit::refreshState(void)
 	
 	glActiveTextureARB(GL_TEXTURE0_ARB + mIndex);
 
-	//
-	// Per apple spec, don't call glEnable/glDisable when index exceeds max texture units
-	// http://www.mailinglistarchive.com/html/mac-opengl@lists.apple.com/2008-07/msg00653.html
-	//
-	bool enableDisable = !LLGLSLShader::sNoFixedFunction && 
-		(mIndex < gGLManager.mNumTextureUnits) && mCurrTexType != LLTexUnit::TT_MULTISAMPLE_TEXTURE;
-		
 	if (mCurrTexType != TT_NONE)
 	{
-		if (enableDisable)
-		{
-			glEnable(sGLTextureType[mCurrTexType]);
-		}
-		
 		glBindTexture(sGLTextureType[mCurrTexType], mCurrTexture);
 	}
 	else
 	{
-		if (enableDisable)
-		{
-			glDisable(GL_TEXTURE_2D);
-		}
-		
 		glBindTexture(GL_TEXTURE_2D, 0);	
 	}
 
@@ -158,11 +141,6 @@ void LLTexUnit::refreshState(void)
 	{
 		setTextureBlendType(mCurrBlendType);
 	}
-	else
-	{
-		setTextureCombiner(mCurrColorOp, mCurrColorSrc1, mCurrColorSrc2, false);
-		setTextureCombiner(mCurrAlphaOp, mCurrAlphaSrc1, mCurrAlphaSrc2, true);
-	}
 
     setTextureColorSpace(mTexColorSpace);
 }
@@ -196,14 +174,6 @@ void LLTexUnit::enable(eTextureType type)
 		mCurrTexType = type;
 
 		gGL.flush();
-		if (!LLGLSLShader::sNoFixedFunction && 
-			type != LLTexUnit::TT_MULTISAMPLE_TEXTURE &&
-			mIndex < gGLManager.mNumTextureUnits)
-		{
-			stop_glerror();
-			glEnable(sGLTextureType[type]);
-			stop_glerror();
-		}
 	}
 }
 
@@ -216,13 +186,6 @@ void LLTexUnit::disable(void)
 		activate();
 		unbind(mCurrTexType);
 		gGL.flush();
-		if (!LLGLSLShader::sNoFixedFunction &&
-			mCurrTexType != LLTexUnit::TT_MULTISAMPLE_TEXTURE &&
-			mIndex < gGLManager.mNumTextureUnits)
-		{
-			glDisable(sGLTextureType[mCurrTexType]);
-		}
-
         setTextureColorSpace(TCS_LINEAR);
 		
 		mCurrTexType = TT_NONE;
@@ -465,7 +428,7 @@ void LLTexUnit::unbind(eTextureType type)
 
         // Always make sure our texture color space is reset to linear.  SRGB sampling should be opt-in in the vast majority of cases.  Also prevents color space "popping".
         mTexColorSpace = TCS_LINEAR;
-		if (LLGLSLShader::sNoFixedFunction && type == LLTexUnit::TT_TEXTURE)
+		if (type == LLTexUnit::TT_TEXTURE)
 		{
 			glBindTexture(sGLTextureType[type], sWhiteTexture);
 		}
@@ -579,51 +542,6 @@ void LLTexUnit::setTextureFilteringOption(LLTexUnit::eTextureFilterOptions optio
 
 void LLTexUnit::setTextureBlendType(eTextureBlendType type)
 {
-	if (LLGLSLShader::sNoFixedFunction)
-	{ //texture blend type means nothing when using shaders
-		return;
-	}
-
-	if (mIndex < 0) return;
-
-	// Do nothing if it's already correctly set.
-	if (mCurrBlendType == type && !gGL.mDirty)
-	{
-		return;
-	}
-
-	gGL.flush();
-
-	activate();
-	mCurrBlendType = type;
-	S32 scale_amount = 1;
-	switch (type) 
-	{
-		case TB_REPLACE:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-			break;
-		case TB_ADD:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);
-			break;
-		case TB_MULT:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-			break;
-		case TB_MULT_X2:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-			scale_amount = 2;
-			break;
-		case TB_ALPHA_BLEND:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-			break;
-		case TB_COMBINE:
-			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
-			break;
-		default:
-			LL_ERRS() << "Unknown Texture Blend Type: " << type << LL_ENDL;
-			break;
-	}
-	setColorScale(scale_amount);
-	setAlphaScale(1);
 }
 
 GLint LLTexUnit::getTextureSource(eTextureBlendSrc src)
@@ -702,159 +620,6 @@ GLint LLTexUnit::getTextureSourceType(eTextureBlendSrc src, bool isAlpha)
 	}
 }
 
-void LLTexUnit::setTextureCombiner(eTextureBlendOp op, eTextureBlendSrc src1, eTextureBlendSrc src2, bool isAlpha)
-{
-	if (LLGLSLShader::sNoFixedFunction)
-	{ //register combiners do nothing when not using fixed function
-		return;
-	}	
-
-	if (mIndex < 0) return;
-
-	activate();
-	if (mCurrBlendType != TB_COMBINE || gGL.mDirty)
-	{
-		mCurrBlendType = TB_COMBINE;
-		gGL.flush();
-		glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
-	}
-	
-	// We want an early out, because this function does a LOT of stuff.
-	if ( ( (isAlpha && (mCurrAlphaOp == op) && (mCurrAlphaSrc1 == src1) && (mCurrAlphaSrc2 == src2))
-			|| (!isAlpha && (mCurrColorOp == op) && (mCurrColorSrc1 == src1) && (mCurrColorSrc2 == src2)) ) && !gGL.mDirty)
-	{
-		return;
-	}
-
-	gGL.flush();
-
-	// Get the gl source enums according to the eTextureBlendSrc sources passed in
-	GLint source1 = getTextureSource(src1);
-	GLint source2 = getTextureSource(src2);
-	// Get the gl operand enums according to the eTextureBlendSrc sources passed in
-	GLint operand1 = getTextureSourceType(src1, isAlpha);
-	GLint operand2 = getTextureSourceType(src2, isAlpha);
-	// Default the scale amount to 1
-	S32 scale_amount = 1;
-	GLenum comb_enum, src0_enum, src1_enum, src2_enum, operand0_enum, operand1_enum, operand2_enum;
-	
-	if (isAlpha)
-	{
-		// Set enums to ALPHA ones
-		comb_enum = GL_COMBINE_ALPHA_ARB;
-		src0_enum = GL_SOURCE0_ALPHA_ARB;
-		src1_enum = GL_SOURCE1_ALPHA_ARB;
-		src2_enum = GL_SOURCE2_ALPHA_ARB;
-		operand0_enum = GL_OPERAND0_ALPHA_ARB;
-		operand1_enum = GL_OPERAND1_ALPHA_ARB;
-		operand2_enum = GL_OPERAND2_ALPHA_ARB;
-
-		// cache current combiner
-		mCurrAlphaOp = op;
-		mCurrAlphaSrc1 = src1;
-		mCurrAlphaSrc2 = src2;
-	}
-	else 
-	{
-		// Set enums to RGB ones
-		comb_enum = GL_COMBINE_RGB_ARB;
-		src0_enum = GL_SOURCE0_RGB_ARB;
-		src1_enum = GL_SOURCE1_RGB_ARB;
-		src2_enum = GL_SOURCE2_RGB_ARB;
-		operand0_enum = GL_OPERAND0_RGB_ARB;
-		operand1_enum = GL_OPERAND1_RGB_ARB;
-		operand2_enum = GL_OPERAND2_RGB_ARB;
-
-		// cache current combiner
-		mCurrColorOp = op;
-		mCurrColorSrc1 = src1;
-		mCurrColorSrc2 = src2;
-	}
-
-	switch(op)
-	{
-		case TBO_REPLACE:
-			// Slightly special syntax (no second sources), just set all and return.
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_REPLACE);
-			glTexEnvi(GL_TEXTURE_ENV, src0_enum, source1);
-			glTexEnvi(GL_TEXTURE_ENV, operand0_enum, operand1);
-			(isAlpha) ? setAlphaScale(1) : setColorScale(1);
-			return;
-
-		case TBO_MULT:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_MODULATE);
-			break;
-
-		case TBO_MULT_X2:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_MODULATE);
-			scale_amount = 2;
-			break;
-
-		case TBO_MULT_X4:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_MODULATE);
-			scale_amount = 4;
-			break;
-
-		case TBO_ADD:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_ADD);
-			break;
-
-		case TBO_ADD_SIGNED:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_ADD_SIGNED_ARB);
-			break;
-
-		case TBO_SUBTRACT:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_SUBTRACT_ARB);
-			break;
-
-		case TBO_LERP_VERT_ALPHA:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_INTERPOLATE);
-			glTexEnvi(GL_TEXTURE_ENV, src2_enum, GL_PRIMARY_COLOR_ARB);
-			glTexEnvi(GL_TEXTURE_ENV, operand2_enum, GL_SRC_ALPHA);
-			break;
-
-		case TBO_LERP_TEX_ALPHA:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_INTERPOLATE);
-			glTexEnvi(GL_TEXTURE_ENV, src2_enum, GL_TEXTURE);
-			glTexEnvi(GL_TEXTURE_ENV, operand2_enum, GL_SRC_ALPHA);
-			break;
-
-		case TBO_LERP_PREV_ALPHA:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_INTERPOLATE);
-			glTexEnvi(GL_TEXTURE_ENV, src2_enum, GL_PREVIOUS_ARB);
-			glTexEnvi(GL_TEXTURE_ENV, operand2_enum, GL_SRC_ALPHA);
-			break;
-
-		case TBO_LERP_CONST_ALPHA:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_INTERPOLATE);
-			glTexEnvi(GL_TEXTURE_ENV, src2_enum, GL_CONSTANT_ARB);
-			glTexEnvi(GL_TEXTURE_ENV, operand2_enum, GL_SRC_ALPHA);
-			break;
-
-		case TBO_LERP_VERT_COLOR:
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_INTERPOLATE);
-			glTexEnvi(GL_TEXTURE_ENV, src2_enum, GL_PRIMARY_COLOR_ARB);
-			glTexEnvi(GL_TEXTURE_ENV, operand2_enum, (isAlpha) ? GL_SRC_ALPHA : GL_SRC_COLOR);
-			break;
-
-		default:
-			LL_WARNS() << "Unknown eTextureBlendOp: " << op << ".  Setting op to replace." << LL_ENDL;
-			// Slightly special syntax (no second sources), just set all and return.
-			glTexEnvi(GL_TEXTURE_ENV, comb_enum, GL_REPLACE);
-			glTexEnvi(GL_TEXTURE_ENV, src0_enum, source1);
-			glTexEnvi(GL_TEXTURE_ENV, operand0_enum, operand1);
-			(isAlpha) ? setAlphaScale(1) : setColorScale(1);
-			return;
-	}
-
-	// Set sources, operands, and scale accordingly
-	glTexEnvi(GL_TEXTURE_ENV, src0_enum, source1);
-	glTexEnvi(GL_TEXTURE_ENV, operand0_enum, operand1);
-	glTexEnvi(GL_TEXTURE_ENV, src1_enum, source2);
-	glTexEnvi(GL_TEXTURE_ENV, operand1_enum, operand2);
-	(isAlpha) ? setAlphaScale(scale_amount) : setColorScale(scale_amount);
-}
-
 void LLTexUnit::setColorScale(S32 scale)
 {
 	if (mCurrColorScale != scale || gGL.mDirty)
@@ -943,26 +708,12 @@ LLLightState::LLLightState(S32 index)
 
 void LLLightState::enable()
 {
-	if (!mEnabled)
-	{
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glEnable(GL_LIGHT0+mIndex);
-		}
-		mEnabled = true;
-	}
+	mEnabled = true;
 }
 
 void LLLightState::disable()
 {
-	if (mEnabled)
-	{
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glDisable(GL_LIGHT0+mIndex);
-		}
-		mEnabled = false;
-	}
+	mEnabled = false;
 }
 
 void LLLightState::setDiffuse(const LLColor4& diffuse)
@@ -971,10 +722,6 @@ void LLLightState::setDiffuse(const LLColor4& diffuse)
 	{
 		++gGL.mLightHash;
 		mDiffuse = diffuse;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightfv(GL_LIGHT0+mIndex, GL_DIFFUSE, mDiffuse.mV);
-		}
 	}
 }
 
@@ -1002,10 +749,6 @@ void LLLightState::setAmbient(const LLColor4& ambient)
 	{
 		++gGL.mLightHash;
 		mAmbient = ambient;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightfv(GL_LIGHT0+mIndex, GL_AMBIENT, mAmbient.mV);
-		}
 	}
 }
 
@@ -1015,10 +758,6 @@ void LLLightState::setSpecular(const LLColor4& specular)
 	{
 		++gGL.mLightHash;
 		mSpecular = specular;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightfv(GL_LIGHT0+mIndex, GL_SPECULAR, mSpecular.mV);
-		}
 	}
 }
 
@@ -1027,20 +766,11 @@ void LLLightState::setPosition(const LLVector4& position)
 	//always set position because modelview matrix may have changed
 	++gGL.mLightHash;
 	mPosition = position;
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glLightfv(GL_LIGHT0+mIndex, GL_POSITION, mPosition.mV);
-	}
-	else
-	{ //transform position by current modelview matrix
-		glh::vec4f pos(position.mV);
-
-		const glh::matrix4f& mat = gGL.getModelviewMatrix();
-		mat.mult_matrix_vec(pos);
-
-		mPosition.set(pos.v);
-	}
-
+	//transform position by current modelview matrix
+	glh::vec4f pos(position.mV);
+	const glh::matrix4f& mat = gGL.getModelviewMatrix();
+	mat.mult_matrix_vec(pos);
+	mPosition.set(pos.v);
 }
 
 void LLLightState::setConstantAttenuation(const F32& atten)
@@ -1049,10 +779,6 @@ void LLLightState::setConstantAttenuation(const F32& atten)
 	{
 		mConstantAtten = atten;
 		++gGL.mLightHash;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightf(GL_LIGHT0+mIndex, GL_CONSTANT_ATTENUATION, atten);
-		}
 	}
 }
 
@@ -1062,10 +788,6 @@ void LLLightState::setLinearAttenuation(const F32& atten)
 	{
 		++gGL.mLightHash;
 		mLinearAtten = atten;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightf(GL_LIGHT0+mIndex, GL_LINEAR_ATTENUATION, atten);
-		}
 	}
 }
 
@@ -1075,10 +797,6 @@ void LLLightState::setQuadraticAttenuation(const F32& atten)
 	{
 		++gGL.mLightHash;
 		mQuadraticAtten = atten;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightf(GL_LIGHT0+mIndex, GL_QUADRATIC_ATTENUATION, atten);
-		}
 	}
 }
 
@@ -1088,10 +806,6 @@ void LLLightState::setSpotExponent(const F32& exponent)
 	{
 		++gGL.mLightHash;
 		mSpotExponent = exponent;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightf(GL_LIGHT0+mIndex, GL_SPOT_EXPONENT, exponent);
-		}
 	}
 }
 
@@ -1101,10 +815,6 @@ void LLLightState::setSpotCutoff(const F32& cutoff)
 	{
 		++gGL.mLightHash;
 		mSpotCutoff = cutoff;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightf(GL_LIGHT0+mIndex, GL_SPOT_CUTOFF, cutoff);
-		}
 	}
 }
 
@@ -1113,19 +823,12 @@ void LLLightState::setSpotDirection(const LLVector3& direction)
 	//always set direction because modelview matrix may have changed
 	++gGL.mLightHash;
 	mSpotDirection = direction;
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glLightfv(GL_LIGHT0+mIndex, GL_SPOT_DIRECTION, direction.mV);
-	}
-	else
-	{ //transform direction by current modelview matrix
-		glh::vec3f dir(direction.mV);
-
-		const glh::matrix4f& mat = gGL.getModelviewMatrix();
-		mat.mult_matrix_dir(dir);
+	//transform direction by current modelview matrix
+	glh::vec3f dir(direction.mV);
+	const glh::matrix4f& mat = gGL.getModelviewMatrix();
+	mat.mult_matrix_dir(dir);
 
-		mSpotDirection.set(dir.v);
-	}
+	mSpotDirection.set(dir.v);
 }
 
 LLRender::LLRender()
@@ -1420,39 +1123,6 @@ void LLRender::syncMatrices()
 			syncLightState();
 		}
 	}
-	else if (!LLGLSLShader::sNoFixedFunction)
-	{
-		static const GLenum mode[] = 
-		{
-			GL_MODELVIEW,
-			GL_PROJECTION,
-			GL_TEXTURE,
-			GL_TEXTURE,
-			GL_TEXTURE,
-			GL_TEXTURE,
-		};
-
-		for (U32 i = 0; i < MM_TEXTURE0; ++i)
-		{
-			if (mMatHash[i] != mCurMatHash[i])
-			{
-				glMatrixMode(mode[i]);
-				glLoadMatrixf(mMatrix[i][mMatIdx[i]].m);
-				mCurMatHash[i] = mMatHash[i];
-			}
-		}
-
-		for (U32 i = MM_TEXTURE0; i < NUM_MATRIX_MODES; ++i)
-		{
-			if (mMatHash[i] != mCurMatHash[i])
-			{
-				gGL.getTexUnit(i-MM_TEXTURE0)->activate();
-				glMatrixMode(mode[i]);
-				glLoadMatrixf(mMatrix[i][mMatIdx[i]].m);
-				mCurMatHash[i] = mMatHash[i];
-			}
-		}
-	}
 }
 
 void LLRender::translatef(const GLfloat& x, const GLfloat& y, const GLfloat& z)
@@ -1771,50 +1441,6 @@ void LLRender::setSceneBlendType(eBlendType type)
 void LLRender::setAlphaRejectSettings(eCompareFunc func, F32 value)
 {
 	flush();
-
-	if (LLGLSLShader::sNoFixedFunction)
-	{ //glAlphaFunc is deprecated in OpenGL 3.3
-		return;
-	}
-
-	if (mCurrAlphaFunc != func ||
-		mCurrAlphaFuncVal != value)
-	{
-		mCurrAlphaFunc = func;
-		mCurrAlphaFuncVal = value;
-		if (func == CF_DEFAULT)
-		{
-			glAlphaFunc(GL_GREATER, 0.01f);
-		} 
-		else
-		{
-			glAlphaFunc(sGLCompareFunc[func], value);
-		}
-	}
-
-	if (gDebugGL)
-	{ //make sure cached state is correct
-		GLint cur_func = 0;
-		glGetIntegerv(GL_ALPHA_TEST_FUNC, &cur_func);
-
-		if (func == CF_DEFAULT)
-		{
-			func = CF_GREATER;
-		}
-
-		if (cur_func != sGLCompareFunc[func])
-		{
-			LL_ERRS() << "Alpha test function corrupted!" << LL_ENDL;
-		}
-
-		F32 ref = 0.f;
-		glGetFloatv(GL_ALPHA_TEST_REF, &ref);
-
-		if (ref != value)
-		{
-			LL_ERRS() << "Alpha test value corrupted!" << LL_ENDL;
-		}
-	}
 }
 
 void LLRender::blendFunc(eBlendFactor sfactor, eBlendFactor dfactor)
@@ -1889,10 +1515,6 @@ void LLRender::setAmbientLightColor(const LLColor4& color)
 	{
 		++mLightHash;
 		mAmbientLightColor = color;
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glLightModelfv(GL_LIGHT_MODEL_AMBIENT, color.mV);
-		}
 	}
 }
 
@@ -2345,7 +1967,7 @@ void LLRender::color3fv(const GLfloat* c)
 void LLRender::diffuseColor3f(F32 r, F32 g, F32 b)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
@@ -2360,7 +1982,7 @@ void LLRender::diffuseColor3f(F32 r, F32 g, F32 b)
 void LLRender::diffuseColor3fv(const F32* c)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
@@ -2375,7 +1997,7 @@ void LLRender::diffuseColor3fv(const F32* c)
 void LLRender::diffuseColor4f(F32 r, F32 g, F32 b, F32 a)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
@@ -2390,7 +2012,7 @@ void LLRender::diffuseColor4f(F32 r, F32 g, F32 b, F32 a)
 void LLRender::diffuseColor4fv(const F32* c)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
@@ -2405,7 +2027,7 @@ void LLRender::diffuseColor4fv(const F32* c)
 void LLRender::diffuseColor4ubv(const U8* c)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
@@ -2420,7 +2042,7 @@ void LLRender::diffuseColor4ubv(const U8* c)
 void LLRender::diffuseColor4ub(U8 r, U8 g, U8 b, U8 a)
 {
 	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;
-	llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
+	llassert(shader != NULL);
 
 	if (shader)
 	{
diff --git a/indra/llrender/llrender.h b/indra/llrender/llrender.h
index 7f19a45410..42aca6e665 100644
--- a/indra/llrender/llrender.h
+++ b/indra/llrender/llrender.h
@@ -204,11 +204,11 @@ public:
 	void setTextureBlendType(eTextureBlendType type);
 
 	inline void setTextureColorBlend(eTextureBlendOp op, eTextureBlendSrc src1, eTextureBlendSrc src2 = TBS_PREV_COLOR)
-	{ setTextureCombiner(op, src1, src2, false); }
+	{ /* setTextureCombiner(op, src1, src2, false); */ }
 
 	// NOTE: If *_COLOR enums are passed to src1 or src2, the corresponding *_ALPHA enum will be used instead.
 	inline void setTextureAlphaBlend(eTextureBlendOp op, eTextureBlendSrc src1, eTextureBlendSrc src2 = TBS_PREV_ALPHA)
-	{ setTextureCombiner(op, src1, src2, true); }
+	{ /* setTextureCombiner(op, src1, src2, true); */ }
 
 	static U32 getInternalType(eTextureType type);
 
@@ -243,7 +243,6 @@ protected:
 	void setAlphaScale(S32 scale);
 	GLint getTextureSource(eTextureBlendSrc src);
 	GLint getTextureSourceType(eTextureBlendSrc src, bool isAlpha = false);
-	void setTextureCombiner(eTextureBlendOp op, eTextureBlendSrc src1, eTextureBlendSrc src2, bool isAlpha = false);
 };
 
 class LLLightState
diff --git a/indra/llrender/llrender2dutils.cpp b/indra/llrender/llrender2dutils.cpp
index 5a942996be..ad21bd4f48 100644
--- a/indra/llrender/llrender2dutils.cpp
+++ b/indra/llrender/llrender2dutils.cpp
@@ -395,15 +395,7 @@ void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTex
 
 	if (solid_color)
 	{
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gSolidColorProgram.bind();
-		}
-		else
-		{
-			gGL.getTexUnit(0)->setTextureColorBlend(LLTexUnit::TBO_REPLACE, LLTexUnit::TBS_PREV_COLOR);
-			gGL.getTexUnit(0)->setTextureAlphaBlend(LLTexUnit::TBO_MULT, LLTexUnit::TBS_TEX_ALPHA, LLTexUnit::TBS_VERT_ALPHA);
-		}
+		gSolidColorProgram.bind();
 	}
 
 	if (center_rect.mLeft == 0.f
@@ -650,14 +642,7 @@ void gl_draw_scaled_image_with_border(S32 x, S32 y, S32 width, S32 height, LLTex
 
 	if (solid_color)
 	{
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gUIProgram.bind();
-		}
-		else
-		{
-			gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
-		}
+		gUIProgram.bind();
 	}
 }
 
@@ -774,10 +759,6 @@ void gl_draw_scaled_rotated_image(S32 x, S32 y, S32 width, S32 height, F32 degre
 
 void gl_stippled_line_3d( const LLVector3& start, const LLVector3& end, const LLColor4& color, F32 phase )
 {
-	phase = fmod(phase, 1.f);
-
-	S32 shift = S32(phase * 4.f) % 4;
-
 	// Stippled line
 	LLGLEnable stipple(GL_LINE_STIPPLE);
 	
@@ -786,11 +767,6 @@ void gl_stippled_line_3d( const LLVector3& start, const LLVector3& end, const LL
 	gGL.flush();
 	glLineWidth(2.5f);
 
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glLineStipple(2, 0x3333 << shift);
-	}
-
 	gGL.begin(LLRender::LINES);
 	{
 		gGL.vertex3fv( start.mV );
@@ -930,52 +906,16 @@ void gl_ring( F32 radius, F32 width, const LLColor4& center_color, const LLColor
 // Draw gray and white checkerboard with black border
 void gl_rect_2d_checkerboard(const LLRect& rect, GLfloat alpha)
 {
-	if (!LLGLSLShader::sNoFixedFunction)
-	{ 
-	// Initialize the first time this is called.
-	const S32 PIXELS = 32;
-	static GLubyte checkerboard[PIXELS * PIXELS];
-	static BOOL first = TRUE;
-	if( first )
-	{
-		for( S32 i = 0; i < PIXELS; i++ )
-		{
-			for( S32 j = 0; j < PIXELS; j++ )
-			{
-				checkerboard[i * PIXELS + j] = ((i & 1) ^ (j & 1)) * 0xFF;
-			}
-		}
-		first = FALSE;
-	}
-	
-	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+	//polygon stipple is deprecated, use "Checker" texture
+	LLPointer<LLUIImage> img = LLRender2D::getInstance()->getUIImage("Checker");
+	gGL.getTexUnit(0)->bind(img->getImage());
+	gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_WRAP);
+	gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT);
 
-	// ...white squares
-	gGL.color4f( 1.f, 1.f, 1.f, alpha );
-	gl_rect_2d(rect);
+	LLColor4 color(1.f, 1.f, 1.f, alpha);
+	LLRectf uv_rect(0, 0, rect.getWidth()/32.f, rect.getHeight()/32.f);
 
-	// ...gray squares
-	gGL.color4f( .7f, .7f, .7f, alpha );
-	gGL.flush();
-
-		glPolygonStipple( checkerboard );
-
-		LLGLEnable polygon_stipple(GL_POLYGON_STIPPLE);
-		gl_rect_2d(rect);
-	}
-	else
-	{ //polygon stipple is deprecated, use "Checker" texture
-		LLPointer<LLUIImage> img = LLRender2D::getInstance()->getUIImage("Checker");
-		gGL.getTexUnit(0)->bind(img->getImage());
-		gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_WRAP);
-		gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_POINT);
-
-		LLColor4 color(1.f, 1.f, 1.f, alpha);
-		LLRectf uv_rect(0, 0, rect.getWidth()/32.f, rect.getHeight()/32.f);
-
-		gl_draw_scaled_image(rect.mLeft, rect.mBottom, rect.getWidth(), rect.getHeight(),
-			img->getImage(), color, uv_rect);
-	}
+	gl_draw_scaled_image(rect.mLeft, rect.mBottom, rect.getWidth(), rect.getHeight(), img->getImage(), color, uv_rect);
 	
 	gGL.flush();
 }
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index a9a4314afa..6a53662619 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -1054,43 +1054,6 @@ BOOL LLShaderMgr::linkProgramObject(GLhandleARB obj, BOOL suppress_errors)
 		LL_SHADER_LOADING_WARNS() << "GLSL Linker Error:" << LL_ENDL;
 	}
 
-#if LL_DARWIN
-
-	// For some reason this absolutely kills the frame rate when VBO's are enabled
-	if (0)
-	{
-		// Force an evaluation of the gl state so the driver can tell if the shader will run in hardware or software
-		// per Apple's suggestion
-		LLGLSLShader::sNoFixedFunction = false;
-		
-		glUseProgramObjectARB(obj);
-
-		gGL.begin(LLRender::TRIANGLES);
-		gGL.vertex3f(0.0f, 0.0f, 0.0f);
-		gGL.vertex3f(0.0f, 0.0f, 0.0f);
-		gGL.vertex3f(0.0f, 0.0f, 0.0f);
-		gGL.end();
-		gGL.flush();
-		
-		glUseProgramObjectARB(0);
-		
-		LLGLSLShader::sNoFixedFunction = true;
-
-		// Query whether the shader can or cannot run in hardware
-		// http://developer.apple.com/qa/qa2007/qa1502.html
-		GLint vertexGPUProcessing, fragmentGPUProcessing;
-		CGLContextObj ctx = CGLGetCurrentContext();
-		CGLGetParameter(ctx, kCGLCPGPUVertexProcessing, &vertexGPUProcessing);	
-		CGLGetParameter(ctx, kCGLCPGPUFragmentProcessing, &fragmentGPUProcessing);
-		if (!fragmentGPUProcessing || !vertexGPUProcessing)
-		{
-			LL_SHADER_LOADING_WARNS() << "GLSL Linker: Running in Software:" << LL_ENDL;
-			success = GL_FALSE;
-			suppress_errors = FALSE;		
-		}
-	}
-
-#else
 	std::string log = get_object_log(obj);
 	LLStringUtil::toLower(log);
 	if (log.find("software") != std::string::npos)
@@ -1099,7 +1062,6 @@ BOOL LLShaderMgr::linkProgramObject(GLhandleARB obj, BOOL suppress_errors)
 		success = GL_FALSE;
 		suppress_errors = FALSE;
 	}
-#endif
 	return success;
 }
 
diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index 46654cc5b9..dcce5a5a1d 100644
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -441,135 +441,26 @@ void LLVertexBuffer::setupClientArrays(U32 data_mask)
 			data_mask = data_mask & ~MAP_TEXTURE_INDEX;
 		}
 
-		if (LLGLSLShader::sNoFixedFunction)
+		for (U32 i = 0; i < TYPE_MAX; ++i)
 		{
-			for (U32 i = 0; i < TYPE_MAX; ++i)
-			{
-				S32 loc = i;
+			S32 loc = i;
 										
-				U32 mask = 1 << i;
-
-				if (sLastMask & (1 << i))
-				{ //was enabled
-					if (!(data_mask & mask))
-					{ //needs to be disabled
-						glDisableVertexAttribArrayARB(loc);
-					}
-				}
-				else 
-				{	//was disabled
-					if (data_mask & mask)
-					{ //needs to be enabled
-						glEnableVertexAttribArrayARB(loc);
-					}
-				}
-			}
-		}
-		else
-		{
-
-			static const GLenum array[] =
-			{
-				GL_VERTEX_ARRAY,
-				GL_NORMAL_ARRAY,
-				GL_TEXTURE_COORD_ARRAY,
-				GL_COLOR_ARRAY,
-			};
-
-			static const GLenum mask[] = 
-			{
-				MAP_VERTEX,
-				MAP_NORMAL,
-				MAP_TEXCOORD0,
-				MAP_COLOR
-			};
-
-
-
-			for (U32 i = 0; i < 4; ++i)
-			{
-				if (sLastMask & mask[i])
-				{ //was enabled
-					if (!(data_mask & mask[i]))
-					{ //needs to be disabled
-						glDisableClientState(array[i]);
-					}
-					else if (gDebugGL)
-					{ //needs to be enabled, make sure it was (DEBUG)
-						if (!glIsEnabled(array[i]))
-						{
-							if (gDebugSession)
-							{
-								gFailLog << "Bad client state! " << array[i] << " disabled." << std::endl;
-							}
-							else
-							{
-								LL_ERRS() << "Bad client state! " << array[i] << " disabled." << LL_ENDL;
-							}
-						}
-					}
-				}
-				else 
-				{	//was disabled
-					if (data_mask & mask[i])
-					{ //needs to be enabled
-						glEnableClientState(array[i]);
-					}
-					else if (gDebugGL && glIsEnabled(array[i]))
-					{ //needs to be disabled, make sure it was (DEBUG TEMPORARY)
-						if (gDebugSession)
-						{
-							gFailLog << "Bad client state! " << array[i] << " enabled." << std::endl;
-						}
-						else
-						{
-							LL_ERRS() << "Bad client state! " << array[i] << " enabled." << LL_ENDL;
-						}
-					}
-				}
-			}
-		
-			static const U32 map_tc[] = 
-			{
-				MAP_TEXCOORD1,
-				MAP_TEXCOORD2,
-				MAP_TEXCOORD3
-			};
+			U32 mask = 1 << i;
 
-			for (U32 i = 0; i < 3; i++)
-			{
-				if (sLastMask & map_tc[i])
-				{
-					if (!(data_mask & map_tc[i]))
-					{ //disable
-						glClientActiveTextureARB(GL_TEXTURE1_ARB+i);
-						glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-						glClientActiveTextureARB(GL_TEXTURE0_ARB);
-					}
-				}
-				else if (data_mask & map_tc[i])
-				{
-					glClientActiveTextureARB(GL_TEXTURE1_ARB+i);
-					glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-					glClientActiveTextureARB(GL_TEXTURE0_ARB);
+			if (sLastMask & (1 << i))
+			{ //was enabled
+				if (!(data_mask & mask))
+				{ //needs to be disabled
+					glDisableVertexAttribArrayARB(loc);
 				}
 			}
-
-			if (sLastMask & MAP_TANGENT)
-			{
-				if (!(data_mask & MAP_TANGENT))
-				{
-					glClientActiveTextureARB(GL_TEXTURE2_ARB);
-					glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-					glClientActiveTextureARB(GL_TEXTURE0_ARB);
+			else 
+			{	//was disabled
+				if (data_mask & mask)
+				{ //needs to be enabled
+					glEnableVertexAttribArrayARB(loc);
 				}
 			}
-			else if (data_mask & MAP_TANGENT)
-			{
-				glClientActiveTextureARB(GL_TEXTURE2_ARB);
-				glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-				glClientActiveTextureARB(GL_TEXTURE0_ARB);
-			}
 		}
 				
 		sLastMask = data_mask;
@@ -593,7 +484,7 @@ void LLVertexBuffer::drawArrays(U32 mode, const std::vector<LLVector3>& pos)
 void LLVertexBuffer::drawElements(U32 mode, const LLVector4a* pos, const LLVector2* tc, S32 num_indices, const U16* indicesp)
 {
     LL_PROFILE_ZONE_SCOPED;
-	llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShaderPtr != NULL);
+	llassert(LLGLSLShader::sCurBoundShaderPtr != NULL);
 
 	gGL.syncMatrices();
 
@@ -690,7 +581,7 @@ void LLVertexBuffer::drawRange(U32 mode, U32 start, U32 end, U32 count, U32 indi
 	gGL.syncMatrices();
 
 	llassert(mNumVerts >= 0);
-	llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShaderPtr != NULL);
+	llassert(LLGLSLShader::sCurBoundShaderPtr != NULL);
 
 	if (mGLArray)
 	{
@@ -758,7 +649,7 @@ void LLVertexBuffer::drawRangeFast(U32 mode, U32 start, U32 end, U32 count, U32
 
 void LLVertexBuffer::draw(U32 mode, U32 count, U32 indices_offset) const
 {
-	llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShaderPtr != NULL);
+	llassert(LLGLSLShader::sCurBoundShaderPtr != NULL);
 	mMappable = false;
 	gGL.syncMatrices();
 
@@ -809,7 +700,7 @@ void LLVertexBuffer::draw(U32 mode, U32 count, U32 indices_offset) const
 void LLVertexBuffer::drawArrays(U32 mode, U32 first, U32 count) const
 {
     LL_PROFILE_ZONE_SCOPED;
-    llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShaderPtr != NULL);
+    llassert(LLGLSLShader::sCurBoundShaderPtr != NULL);
     mMappable = false;
     gGL.syncMatrices();
 
@@ -2499,140 +2390,94 @@ void LLVertexBuffer::setupVertexBuffer(U32 data_mask)
 		LL_ERRS() << "LLVertexBuffer::setupVertexBuffer missing required components for supplied data mask." << LL_ENDL;
 	}
 
-	if (LLGLSLShader::sNoFixedFunction)
+	if (data_mask & MAP_NORMAL)
 	{
-		if (data_mask & MAP_NORMAL)
-		{
-			S32 loc = TYPE_NORMAL;
-			void* ptr = (void*)(base + mOffsets[TYPE_NORMAL]);
-			glVertexAttribPointerARB(loc, 3, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_NORMAL], ptr);
-		}
-		if (data_mask & MAP_TEXCOORD3)
-		{
-			S32 loc = TYPE_TEXCOORD3;
-			void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD3]);
-			glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD3], ptr);
-		}
-		if (data_mask & MAP_TEXCOORD2)
-		{
-			S32 loc = TYPE_TEXCOORD2;
-			void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD2]);
-			glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD2], ptr);
-		}
-		if (data_mask & MAP_TEXCOORD1)
-		{
-			S32 loc = TYPE_TEXCOORD1;
-			void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD1]);
-			glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD1], ptr);
-		}
-		if (data_mask & MAP_TANGENT)
-		{
-			S32 loc = TYPE_TANGENT;
-			void* ptr = (void*)(base + mOffsets[TYPE_TANGENT]);
-			glVertexAttribPointerARB(loc, 4,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TANGENT], ptr);
-		}
-		if (data_mask & MAP_TEXCOORD0)
-		{
-			S32 loc = TYPE_TEXCOORD0;
-			void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD0]);
-			glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD0], ptr);
-		}
-		if (data_mask & MAP_COLOR)
-		{
-			S32 loc = TYPE_COLOR;
-			//bind emissive instead of color pointer if emissive is present
-			void* ptr = (data_mask & MAP_EMISSIVE) ? (void*)(base + mOffsets[TYPE_EMISSIVE]) : (void*)(base + mOffsets[TYPE_COLOR]);
-			glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_COLOR], ptr);
-		}
-		if (data_mask & MAP_EMISSIVE)
-		{
-			S32 loc = TYPE_EMISSIVE;
-			void* ptr = (void*)(base + mOffsets[TYPE_EMISSIVE]);
-			glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
+		S32 loc = TYPE_NORMAL;
+		void* ptr = (void*)(base + mOffsets[TYPE_NORMAL]);
+		glVertexAttribPointerARB(loc, 3, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_NORMAL], ptr);
+	}
+	if (data_mask & MAP_TEXCOORD3)
+	{
+		S32 loc = TYPE_TEXCOORD3;
+		void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD3]);
+		glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD3], ptr);
+	}
+	if (data_mask & MAP_TEXCOORD2)
+	{
+		S32 loc = TYPE_TEXCOORD2;
+		void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD2]);
+		glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD2], ptr);
+	}
+	if (data_mask & MAP_TEXCOORD1)
+	{
+		S32 loc = TYPE_TEXCOORD1;
+		void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD1]);
+		glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD1], ptr);
+	}
+	if (data_mask & MAP_TANGENT)
+	{
+		S32 loc = TYPE_TANGENT;
+		void* ptr = (void*)(base + mOffsets[TYPE_TANGENT]);
+		glVertexAttribPointerARB(loc, 4,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TANGENT], ptr);
+	}
+	if (data_mask & MAP_TEXCOORD0)
+	{
+		S32 loc = TYPE_TEXCOORD0;
+		void* ptr = (void*)(base + mOffsets[TYPE_TEXCOORD0]);
+		glVertexAttribPointerARB(loc,2,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD0], ptr);
+	}
+	if (data_mask & MAP_COLOR)
+	{
+		S32 loc = TYPE_COLOR;
+		//bind emissive instead of color pointer if emissive is present
+		void* ptr = (data_mask & MAP_EMISSIVE) ? (void*)(base + mOffsets[TYPE_EMISSIVE]) : (void*)(base + mOffsets[TYPE_COLOR]);
+		glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_COLOR], ptr);
+	}
+	if (data_mask & MAP_EMISSIVE)
+	{
+		S32 loc = TYPE_EMISSIVE;
+		void* ptr = (void*)(base + mOffsets[TYPE_EMISSIVE]);
+		glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
 
-			if (!(data_mask & MAP_COLOR))
-			{ //map emissive to color channel when color is not also being bound to avoid unnecessary shader swaps
-				loc = TYPE_COLOR;
-				glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
-			}
-		}
-		if (data_mask & MAP_WEIGHT)
-		{
-			S32 loc = TYPE_WEIGHT;
-			void* ptr = (void*)(base + mOffsets[TYPE_WEIGHT]);
-			glVertexAttribPointerARB(loc, 1, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_WEIGHT], ptr);
-		}
-		if (data_mask & MAP_WEIGHT4)
-		{
-			S32 loc = TYPE_WEIGHT4;
-			void* ptr = (void*)(base+mOffsets[TYPE_WEIGHT4]);
-			glVertexAttribPointerARB(loc, 4, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_WEIGHT4], ptr);
-		}
-		if (data_mask & MAP_CLOTHWEIGHT)
-		{
-			S32 loc = TYPE_CLOTHWEIGHT;
-			void* ptr = (void*)(base + mOffsets[TYPE_CLOTHWEIGHT]);
-			glVertexAttribPointerARB(loc, 4, GL_FLOAT, GL_TRUE,  LLVertexBuffer::sTypeSize[TYPE_CLOTHWEIGHT], ptr);
+		if (!(data_mask & MAP_COLOR))
+		{ //map emissive to color channel when color is not also being bound to avoid unnecessary shader swaps
+			loc = TYPE_COLOR;
+			glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
 		}
-		if (data_mask & MAP_TEXTURE_INDEX && 
-				(gGLManager.mGLSLVersionMajor >= 2 || gGLManager.mGLSLVersionMinor >= 30)) //indexed texture rendering requires GLSL 1.30 or later
-		{
+	}
+	if (data_mask & MAP_WEIGHT)
+	{
+		S32 loc = TYPE_WEIGHT;
+		void* ptr = (void*)(base + mOffsets[TYPE_WEIGHT]);
+		glVertexAttribPointerARB(loc, 1, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_WEIGHT], ptr);
+	}
+	if (data_mask & MAP_WEIGHT4)
+	{
+		S32 loc = TYPE_WEIGHT4;
+		void* ptr = (void*)(base+mOffsets[TYPE_WEIGHT4]);
+		glVertexAttribPointerARB(loc, 4, GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_WEIGHT4], ptr);
+	}
+	if (data_mask & MAP_CLOTHWEIGHT)
+	{
+		S32 loc = TYPE_CLOTHWEIGHT;
+		void* ptr = (void*)(base + mOffsets[TYPE_CLOTHWEIGHT]);
+		glVertexAttribPointerARB(loc, 4, GL_FLOAT, GL_TRUE,  LLVertexBuffer::sTypeSize[TYPE_CLOTHWEIGHT], ptr);
+	}
+	if (data_mask & MAP_TEXTURE_INDEX && 
+			(gGLManager.mGLSLVersionMajor >= 2 || gGLManager.mGLSLVersionMinor >= 30)) //indexed texture rendering requires GLSL 1.30 or later
+	{
 #if !LL_DARWIN
-			S32 loc = TYPE_TEXTURE_INDEX;
-			void *ptr = (void*) (base + mOffsets[TYPE_VERTEX] + 12);
-			glVertexAttribIPointer(loc, 1, GL_UNSIGNED_INT, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr);
+		S32 loc = TYPE_TEXTURE_INDEX;
+		void *ptr = (void*) (base + mOffsets[TYPE_VERTEX] + 12);
+		glVertexAttribIPointer(loc, 1, GL_UNSIGNED_INT, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr);
 #endif
-		}
-		if (data_mask & MAP_VERTEX)
-		{
-			S32 loc = TYPE_VERTEX;
-			void* ptr = (void*)(base + mOffsets[TYPE_VERTEX]);
-			glVertexAttribPointerARB(loc, 3,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr);
-		}	
-	}	
-	else
-	{
-		if (data_mask & MAP_NORMAL)
-		{
-			glNormalPointer(GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_NORMAL], (void*)(base + mOffsets[TYPE_NORMAL]));
-		}
-		if (data_mask & MAP_TEXCOORD3)
-		{
-			glClientActiveTextureARB(GL_TEXTURE3_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD3], (void*)(base + mOffsets[TYPE_TEXCOORD3]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD2)
-		{
-			glClientActiveTextureARB(GL_TEXTURE2_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD2], (void*)(base + mOffsets[TYPE_TEXCOORD2]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD1)
-		{
-			glClientActiveTextureARB(GL_TEXTURE1_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD1], (void*)(base + mOffsets[TYPE_TEXCOORD1]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TANGENT)
-		{
-			glClientActiveTextureARB(GL_TEXTURE2_ARB);
-			glTexCoordPointer(4,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TANGENT], (void*)(base + mOffsets[TYPE_TANGENT]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD0)
-		{
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD0], (void*)(base + mOffsets[TYPE_TEXCOORD0]));
-		}
-		if (data_mask & MAP_COLOR)
-		{
-			glColorPointer(4, GL_UNSIGNED_BYTE, LLVertexBuffer::sTypeSize[TYPE_COLOR], (void*)(base + mOffsets[TYPE_COLOR]));
-		}
-		if (data_mask & MAP_VERTEX)
-		{
-			glVertexPointer(3,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_VERTEX], (void*)(base + 0));
-		}	
 	}
+	if (data_mask & MAP_VERTEX)
+	{
+		S32 loc = TYPE_VERTEX;
+		void* ptr = (void*)(base + mOffsets[TYPE_VERTEX]);
+		glVertexAttribPointerARB(loc, 3,GL_FLOAT, GL_FALSE, LLVertexBuffer::sTypeSize[TYPE_VERTEX], ptr);
+	}	
 
 	llglassertok();
 }
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index 062dd02903..b8bfa92279 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -1798,14 +1798,6 @@ void* LLWindowWin32::createSharedContext()
             LL_INFOS() << "Created OpenGL " << llformat("%d.%d", attribs[1], attribs[3]) <<
                 (LLRender::sGLCoreProfile ? " core" : " compatibility") << " context." << LL_ENDL;
             done = true;
-
-            // force sNoFixedFunction iff we're trying to use nsight debugging which does not support many legacy API uses
-
-                // nSight doesn't support use of legacy API funcs in the fixed function pipe
-            if (LLRender::sGLCoreProfile || LLRender::sNsightDebugSupport)
-            {
-                LLGLSLShader::sNoFixedFunction = true;
-            }
         }
     }
 
diff --git a/indra/newview/lldrawpoolavatar.cpp b/indra/newview/lldrawpoolavatar.cpp
index 125cd3fd5b..f9fdbac9ab 100644
--- a/indra/newview/lldrawpoolavatar.cpp
+++ b/indra/newview/lldrawpoolavatar.cpp
@@ -497,11 +497,8 @@ void LLDrawPoolAvatar::beginImpostor()
 		LLVOAvatar::sNumVisibleAvatars = 0;
 	}
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gImpostorProgram.bind();
-		gImpostorProgram.setMinimumAlpha(0.01f);
-	}
+	gImpostorProgram.bind();
+	gImpostorProgram.setMinimumAlpha(0.01f);
 
 	gPipeline.enableLightsFullbright();
 	sDiffuseChannel = 0;
@@ -511,10 +508,7 @@ void LLDrawPoolAvatar::endImpostor()
 {
     LL_PROFILE_ZONE_SCOPED
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gImpostorProgram.unbind();
-	}
+	gImpostorProgram.unbind();
 	gPipeline.enableLightsDynamic();
 }
 
@@ -686,10 +680,7 @@ void LLDrawPoolAvatar::beginSkinned()
 		}
 	}
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		sVertexProgram->setMinimumAlpha(LLDrawPoolAvatar::sMinimumAlpha);
-	}
+	sVertexProgram->setMinimumAlpha(LLDrawPoolAvatar::sMinimumAlpha);
 }
 
 void LLDrawPoolAvatar::endSkinned()
diff --git a/indra/newview/lldrawpoolbump.cpp b/indra/newview/lldrawpoolbump.cpp
index af8b194f38..2d26ee9f65 100644
--- a/indra/newview/lldrawpoolbump.cpp
+++ b/indra/newview/lldrawpoolbump.cpp
@@ -745,23 +745,9 @@ void LLDrawPoolBump::renderBump(U32 pass)
 //static
 void LLDrawPoolBump::endBump(U32 pass)
 {
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gObjectBumpProgram.unbind();
-	}
-	else
-	{
-		// Disable texture blending on unit 1
-		gGL.getTexUnit(1)->activate();
-		gGL.getTexUnit(1)->disable();
-		gGL.getTexUnit(1)->setTextureBlendType(LLTexUnit::TB_MULT);
+    gObjectBumpProgram.unbind();
 
-		// Disable texture blending on unit 0
-		gGL.getTexUnit(0)->activate();
-		gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
-	}
-	
-	gGL.setSceneBlendType(LLRender::BT_ALPHA);
+    gGL.setSceneBlendType(LLRender::BT_ALPHA);
 }
 
 S32 LLDrawPoolBump::getNumDeferredPasses()
diff --git a/indra/newview/lldrawpoolsky.cpp b/indra/newview/lldrawpoolsky.cpp
index b1eefaab81..3a1efec91b 100644
--- a/indra/newview/lldrawpoolsky.cpp
+++ b/indra/newview/lldrawpoolsky.cpp
@@ -76,16 +76,8 @@ void LLDrawPoolSky::render(S32 pass)
 	}
 
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{ //just use the UI shader (generic single texture no lighting)
-		gOneTextureNoColorProgram.bind();
-	}
-	else
-	{
-		LLGLSLShader::bindNoShader();
-		mShader = NULL;
-	}
-	
+    //just use the UI shader (generic single texture no lighting)
+	gOneTextureNoColorProgram.bind();
 
 	LLGLSPipelineDepthTestSkyBox gls_skybox(true, false);
 
diff --git a/indra/newview/lldrawpoolterrain.cpp b/indra/newview/lldrawpoolterrain.cpp
index 9cea8f5460..c71ebaffb9 100644
--- a/indra/newview/lldrawpoolterrain.cpp
+++ b/indra/newview/lldrawpoolterrain.cpp
@@ -837,20 +837,8 @@ void LLDrawPoolTerrain::renderSimple()
 	tp0.setVec(tscale, 0.f, 0.0f, -1.f*(origin_agent.mV[0]/256.f));
 	tp1.setVec(0.f, tscale, 0.0f, -1.f*(origin_agent.mV[1]/256.f));
 	
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		sShader->uniform4fv(LLShaderMgr::OBJECT_PLANE_S, 1, tp0.mV);
-		sShader->uniform4fv(LLShaderMgr::OBJECT_PLANE_T, 1, tp1.mV);
-	}
-	else
-	{
-		glEnable(GL_TEXTURE_GEN_S);
-		glEnable(GL_TEXTURE_GEN_T);
-		glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
-		glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
-		glTexGenfv(GL_S, GL_OBJECT_PLANE, tp0.mV);
-		glTexGenfv(GL_T, GL_OBJECT_PLANE, tp1.mV);
-	}
+	sShader->uniform4fv(LLShaderMgr::OBJECT_PLANE_S, 1, tp0.mV);
+	sShader->uniform4fv(LLShaderMgr::OBJECT_PLANE_T, 1, tp1.mV);
 
 	gGL.getTexUnit(0)->setTextureColorBlend(LLTexUnit::TBO_MULT, LLTexUnit::TBS_TEX_COLOR, LLTexUnit::TBS_VERT_COLOR);
 
@@ -861,11 +849,6 @@ void LLDrawPoolTerrain::renderSimple()
 	
 	gGL.getTexUnit(0)->activate();
 	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glDisable(GL_TEXTURE_GEN_S);
-		glDisable(GL_TEXTURE_GEN_T);
-	}
 	gGL.matrixMode(LLRender::MM_TEXTURE);
 	gGL.loadIdentity();
 	gGL.matrixMode(LLRender::MM_MODELVIEW);
diff --git a/indra/newview/lldrawpooltree.cpp b/indra/newview/lldrawpooltree.cpp
index 202f648e3f..e93852864e 100644
--- a/indra/newview/lldrawpooltree.cpp
+++ b/indra/newview/lldrawpooltree.cpp
@@ -90,7 +90,7 @@ void LLDrawPoolTree::render(S32 pass)
 		return;
 	}
 
-	LLGLState test(GL_ALPHA_TEST, LLGLSLShader::sNoFixedFunction ? 0 : 1);
+	LLGLState test(GL_ALPHA_TEST, 0);
 
 	gGL.getTexUnit(sDiffTex)->bind(mTexturep);
 				
diff --git a/indra/newview/lldrawpoolwater.cpp b/indra/newview/lldrawpoolwater.cpp
index e2d3f67e46..c0e82ead43 100644
--- a/indra/newview/lldrawpoolwater.cpp
+++ b/indra/newview/lldrawpoolwater.cpp
@@ -352,19 +352,16 @@ void LLDrawPoolWater::renderOpaqueLegacyWater()
     }
 
 	LLGLSLShader* shader = NULL;
-	if (LLGLSLShader::sNoFixedFunction)
+	if (LLPipeline::sUnderWaterRender)
 	{
-		if (LLPipeline::sUnderWaterRender)
-		{
-			shader = &gObjectSimpleNonIndexedTexGenWaterProgram;
-		}
-		else
-		{
-			shader = &gObjectSimpleNonIndexedTexGenProgram;
-		}
-
-		shader->bind();
+		shader = &gObjectSimpleNonIndexedTexGenWaterProgram;
 	}
+	else
+	{
+		shader = &gObjectSimpleNonIndexedTexGenProgram;
+	}
+
+	shader->bind();
 
 	stop_glerror();
 
diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index 8c8dc3f3d2..44b12ceaca 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -266,33 +266,14 @@ void LLDrawPoolWLSky::renderStars(const LLVector3& camPosLocal) const
 	gGL.pushMatrix();
 	gGL.translatef(camPosLocal.mV[0], camPosLocal.mV[1], camPosLocal.mV[2]);
 	gGL.rotatef(gFrameTimeSeconds*0.01f, 0.f, 0.f, 1.f);
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gCustomAlphaProgram.bind();
-		gCustomAlphaProgram.uniform1f(sCustomAlpha, star_alpha.mV[3]);
-	}
-	else
-	{
-		gGL.getTexUnit(0)->setTextureColorBlend(LLTexUnit::TBO_MULT, LLTexUnit::TBS_TEX_COLOR, LLTexUnit::TBS_VERT_COLOR);
-		gGL.getTexUnit(0)->setTextureAlphaBlend(LLTexUnit::TBO_MULT_X2, LLTexUnit::TBS_CONST_ALPHA, LLTexUnit::TBS_TEX_ALPHA);
-		glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, star_alpha.mV);
-	}
+	gCustomAlphaProgram.bind();
+	gCustomAlphaProgram.uniform1f(sCustomAlpha, star_alpha.mV[3]);
 
 	gSky.mVOWLSkyp->drawStars();
 
     gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
-
 	gGL.popMatrix();
-
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gCustomAlphaProgram.unbind();
-	}
-	else
-	{
-		// and disable the combiner states
-		gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
-	}
+	gCustomAlphaProgram.unbind();
 }
 
 void LLDrawPoolWLSky::renderStarsDeferred(const LLVector3& camPosLocal) const
diff --git a/indra/newview/llfloaterbvhpreview.cpp b/indra/newview/llfloaterbvhpreview.cpp
index 131d9b077b..4f0d8b8eb0 100644
--- a/indra/newview/llfloaterbvhpreview.cpp
+++ b/indra/newview/llfloaterbvhpreview.cpp
@@ -1088,10 +1088,7 @@ BOOL	LLPreviewAnimation::render()
 	gGL.pushMatrix();
 	gGL.loadIdentity();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	LLGLSUIDefault def;
 	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
diff --git a/indra/newview/llfloaterimagepreview.cpp b/indra/newview/llfloaterimagepreview.cpp
index 028c922a4d..89ba687d25 100644
--- a/indra/newview/llfloaterimagepreview.cpp
+++ b/indra/newview/llfloaterimagepreview.cpp
@@ -664,10 +664,7 @@ BOOL LLImagePreviewAvatar::render()
 	LLGLSUIDefault def;
 	gGL.color4f(0.15f, 0.2f, 0.3f, 1.f);
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	gl_rect_2d_simple( mFullWidth, mFullHeight );
 
@@ -866,10 +863,7 @@ BOOL LLImagePreviewSculpted::render()
 		
 	gGL.color4f(0.15f, 0.2f, 0.3f, 1.f);
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	gl_rect_2d_simple( mFullWidth, mFullHeight );
 	
@@ -903,10 +897,7 @@ BOOL LLImagePreviewSculpted::render()
 	
 	gPipeline.enableLightsAvatar();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gObjectPreviewProgram.bind();
-	}
+	gObjectPreviewProgram.bind();
 	gPipeline.enableLightsPreview();
 
 	gGL.pushMatrix();
@@ -920,10 +911,7 @@ BOOL LLImagePreviewSculpted::render()
 
 	gGL.popMatrix();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gObjectPreviewProgram.unbind();
-	}
+	gObjectPreviewProgram.unbind();
 
 	return TRUE;
 }
diff --git a/indra/newview/llglsandbox.cpp b/indra/newview/llglsandbox.cpp
index 91f314c115..a135ef0814 100644
--- a/indra/newview/llglsandbox.cpp
+++ b/indra/newview/llglsandbox.cpp
@@ -791,10 +791,7 @@ void LLViewerObjectList::renderObjectBeacons()
 
 	LLGLSUIDefault gls_ui;
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	{
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
@@ -882,10 +879,7 @@ void LLViewerObjectList::renderObjectBeacons()
 void LLSky::renderSunMoonBeacons(const LLVector3& pos_agent, const LLVector3& direction, LLColor4 color)
 {
 	LLGLSUIDefault gls_ui;
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 	gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 
 	LLVector3 pos_end;
diff --git a/indra/newview/llhudtext.cpp b/indra/newview/llhudtext.cpp
index 7c957ac712..d01d25a75b 100644
--- a/indra/newview/llhudtext.cpp
+++ b/indra/newview/llhudtext.cpp
@@ -573,7 +573,6 @@ void LLHUDText::renderAllHUD()
 {
 	LLGLState::checkStates();
 	LLGLState::checkTextureChannels();
-	LLGLState::checkClientArrays();
 
 	{
 		LLGLEnable color_mat(GL_COLOR_MATERIAL);
@@ -591,7 +590,6 @@ void LLHUDText::renderAllHUD()
 
 	LLGLState::checkStates();
 	LLGLState::checkTextureChannels();
-	LLGLState::checkClientArrays();
 }
 
 void LLHUDText::shiftAll(const LLVector3& offset)
diff --git a/indra/newview/lllegacyatmospherics.cpp b/indra/newview/lllegacyatmospherics.cpp
index 238e9fe0e1..1364067949 100644
--- a/indra/newview/lllegacyatmospherics.cpp
+++ b/indra/newview/lllegacyatmospherics.cpp
@@ -383,12 +383,6 @@ void LLAtmospherics::updateFog(const F32 distance, const LLVector3& tosun_in)
 
 	if (!gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_FOG))
 	{
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glFogf(GL_FOG_DENSITY, 0);
-			glFogfv(GL_FOG_COLOR, (F32 *) &LLColor4::white.mV);
-			glFogf(GL_FOG_END, 1000000.f);
-		}
 		return;
 	}
 
@@ -484,10 +478,6 @@ void LLAtmospherics::updateFog(const F32 distance, const LLVector3& tosun_in)
 	if (camera_height > water_height)
 	{
 		LLColor4 fog(render_fog_color);
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glFogfv(GL_FOG_COLOR, fog.mV);
-		}
 		mGLFogCol = fog;
 
 		if (hide_clip_plane)
@@ -495,19 +485,11 @@ void LLAtmospherics::updateFog(const F32 distance, const LLVector3& tosun_in)
 			// For now, set the density to extend to the cull distance.
 			const F32 f_log = 2.14596602628934723963618357029f; // sqrt(fabs(log(0.01f)))
 			fog_density = f_log/fog_distance;
-			if (!LLGLSLShader::sNoFixedFunction)
-			{
-				glFogi(GL_FOG_MODE, GL_EXP2);
-			}
 		}
 		else
 		{
 			const F32 f_log = 4.6051701859880913680359829093687f; // fabs(log(0.01f))
 			fog_density = (f_log)/fog_distance;
-			if (!LLGLSLShader::sNoFixedFunction)
-			{
-				glFogi(GL_FOG_MODE, GL_EXP);
-			}
 		}
 	}
 	else
@@ -533,12 +515,6 @@ void LLAtmospherics::updateFog(const F32 distance, const LLVector3& tosun_in)
 
 		// set the density based on what the shaders use
 		fog_density = water_fog_density * gSavedSettings.getF32("WaterGLFogDensityScale");
-
-		if (!LLGLSLShader::sNoFixedFunction)
-		{
-			glFogfv(GL_FOG_COLOR, (F32 *) &fogCol.mV);
-			glFogi(GL_FOG_MODE, GL_EXP2);
-		}
 	}
 
 	mFogColor = sky_fog_color;
@@ -546,13 +522,6 @@ void LLAtmospherics::updateFog(const F32 distance, const LLVector3& tosun_in)
 
 	LLDrawPoolWater::sWaterFogEnd = fog_distance*2.2f;
 
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		LLGLSFog gls_fog;
-		glFogf(GL_FOG_END, fog_distance*2.2f);
-		glFogf(GL_FOG_DENSITY, fog_density);
-		glHint(GL_FOG_HINT, GL_NICEST);
-	}
 	stop_glerror();
 }
 
diff --git a/indra/newview/llmaniprotate.cpp b/indra/newview/llmaniprotate.cpp
index 7c942e8b53..452762b09d 100644
--- a/indra/newview/llmaniprotate.cpp
+++ b/indra/newview/llmaniprotate.cpp
@@ -157,10 +157,7 @@ void LLManipRotate::render()
 		}
 		else
 		{
-			if (LLGLSLShader::sNoFixedFunction)
-			{
-				gDebugProgram.bind();
-			}
+			gDebugProgram.bind();
 
 			LLGLEnable cull_face(GL_CULL_FACE);
 			LLGLDepthTest gls_depth(GL_FALSE);
@@ -213,10 +210,7 @@ void LLManipRotate::render()
 			}
 			gGL.popMatrix();
 
-			if (LLGLSLShader::sNoFixedFunction)
-			{
-				gUIProgram.bind();
-			}
+			gUIProgram.bind();
 		}
 		
 		gGL.translatef( center.mV[VX], center.mV[VY], center.mV[VZ] );
@@ -234,10 +228,7 @@ void LLManipRotate::render()
 		gGL.rotatef(angle_radians * RAD_TO_DEG, x, y, z);
 
 
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gDebugProgram.bind();
-		}
+		gDebugProgram.bind();
 
 		if (mManipPart == LL_ROT_Z)
 		{
@@ -355,11 +346,7 @@ void LLManipRotate::render()
 			
 		}
 
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gUIProgram.bind();
-		}
-		
+		gUIProgram.bind();
 	}
 	gGL.popMatrix();
 	gGL.popMatrix();
diff --git a/indra/newview/llmaniptranslate.cpp b/indra/newview/llmaniptranslate.cpp
index 8736d3b51f..0b2a1ef389 100644
--- a/indra/newview/llmaniptranslate.cpp
+++ b/indra/newview/llmaniptranslate.cpp
@@ -1565,11 +1565,6 @@ void LLManipTranslate::renderSnapGuides()
 					LLGLEnable stipple(GL_LINE_STIPPLE);
 					gGL.flush();
 
-					if (!LLGLSLShader::sNoFixedFunction)
-					{
-						glLineStipple(1, 0x3333);
-					}
-		
 					switch (mManipPart)
 					{
 					  case LL_YZ_PLANE:
@@ -1633,7 +1628,7 @@ void LLManipTranslate::highlightIntersection(LLVector3 normal,
 											 LLQuaternion grid_rotation, 
 											 LLColor4 inner_color)
 {
-	if (!gSavedSettings.getBOOL("GridCrossSections") || !LLGLSLShader::sNoFixedFunction)
+	if (!gSavedSettings.getBOOL("GridCrossSections"))
 	{
 		return;
 	}
diff --git a/indra/newview/llmodelpreview.cpp b/indra/newview/llmodelpreview.cpp
index d7e9e234ca..566a89e24d 100644
--- a/indra/newview/llmodelpreview.cpp
+++ b/indra/newview/llmodelpreview.cpp
@@ -2886,8 +2886,6 @@ BOOL LLModelPreview::render()
     LLMutexLock lock(this);
     mNeedsUpdate = FALSE;
 
-    bool use_shaders = LLGLSLShader::sNoFixedFunction;
-
     bool edges = mViewOption["show_edges"];
     bool joint_overrides = mViewOption["show_joint_overrides"];
     bool joint_positions = mViewOption["show_joint_positions"];
@@ -2905,10 +2903,8 @@ BOOL LLModelPreview::render()
     LLGLDisable fog(GL_FOG);
 
     {
-        if (use_shaders)
-        {
-            gUIProgram.bind();
-        }
+        gUIProgram.bind();
+
         //clear background to grey
         gGL.matrixMode(LLRender::MM_PROJECTION);
         gGL.pushMatrix();
@@ -2927,10 +2923,7 @@ BOOL LLModelPreview::render()
 
         gGL.matrixMode(LLRender::MM_MODELVIEW);
         gGL.popMatrix();
-        if (use_shaders)
-        {
-            gUIProgram.unbind();
-        }
+        gUIProgram.unbind();
     }
 
     LLFloaterModelPreview* fmp = LLFloaterModelPreview::sInstance;
@@ -3083,10 +3076,7 @@ BOOL LLModelPreview::render()
         refresh();
     }
 
-    if (use_shaders)
-    {
-        gObjectPreviewProgram.bind();
-    }
+    gObjectPreviewProgram.bind();
 
     gGL.loadIdentity();
     gPipeline.enableLightsPreview();
@@ -3587,10 +3577,7 @@ BOOL LLModelPreview::render()
         }
     }
 
-    if (use_shaders)
-    {
-        gObjectPreviewProgram.unbind();
-    }
+    gObjectPreviewProgram.unbind();
 
     gGL.popMatrix();
 
diff --git a/indra/newview/llscenemonitor.cpp b/indra/newview/llscenemonitor.cpp
index 177bc84cee..2e44dc1459 100644
--- a/indra/newview/llscenemonitor.cpp
+++ b/indra/newview/llscenemonitor.cpp
@@ -271,7 +271,7 @@ void LLSceneMonitor::capture()
 	static LLCachedControl<F32>  scene_load_sample_time(gSavedSettings, "SceneLoadingMonitorSampleTime");
 	static bool force_capture = true;
 
-	bool enabled = LLGLSLShader::sNoFixedFunction && (monitor_enabled || mDebugViewerVisible);
+	bool enabled = monitor_enabled || mDebugViewerVisible;
 	if(mEnabled != enabled)
 	{
 		if(mEnabled)
@@ -719,13 +719,6 @@ void LLSceneMonitorView::onTeleportFinished()
 
 void LLSceneMonitorView::onVisibilityChange(BOOL visible)
 {
-	if (!LLGLSLShader::sNoFixedFunction && visible)
-	{
-		visible = false;
-		// keep Scene monitor and its view in sycn
-		setVisible(false);
-		LL_WARNS("SceneMonitor") << "Incompatible graphical settings, Scene Monitor can't be turned on" << LL_ENDL; 
-	}
 	LLSceneMonitor::getInstance()->setDebugViewerVisible(visible);
 }
 
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index 332fa73944..25d6106361 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -2612,7 +2612,7 @@ void renderPhysicsShape(LLDrawable* drawable, LLVOVolume* volume)
 				gGL.diffuseColor4fv(line_color.mV);
 				LLVertexBuffer::unbind();
 
-				llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShader != 0);
+				llassert(LLGLSLShader::sCurBoundShader != 0);
 				
                 LLVertexBuffer::drawElements(LLRender::TRIANGLES, phys_volume->mHullPoints, NULL, phys_volume->mNumHullIndices, phys_volume->mHullIndices);
 				
@@ -2694,7 +2694,7 @@ void renderPhysicsShape(LLDrawable* drawable, LLVOVolume* volume)
 		if (phys_volume->mHullPoints && phys_volume->mHullIndices)
 		{
 			glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-			llassert(!LLGLSLShader::sNoFixedFunction || LLGLSLShader::sCurBoundShader != 0);
+			llassert(LLGLSLShader::sCurBoundShader != 0);
 			LLVertexBuffer::unbind();
 			glVertexPointer(3, GL_FLOAT, 16, phys_volume->mHullPoints);
 			gGL.diffuseColor4fv(line_color.mV);
@@ -3796,10 +3796,7 @@ void LLSpatialPartition::renderDebug()
 		return;
 	}
 	
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gDebugProgram.bind();
-	}
+	gDebugProgram.bind();
 
 	if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXTURE_PRIORITY))
 	{
@@ -3848,10 +3845,7 @@ void LLSpatialPartition::renderDebug()
 			glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 		}
 	}
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gDebugProgram.unbind();
-	}
+	gDebugProgram.unbind();
 }
 
 void LLSpatialGroup::drawObjectBox(LLColor4 col)
diff --git a/indra/newview/lltoolmorph.cpp b/indra/newview/lltoolmorph.cpp
index 06a2caf75b..9f0198029a 100644
--- a/indra/newview/lltoolmorph.cpp
+++ b/indra/newview/lltoolmorph.cpp
@@ -195,10 +195,7 @@ BOOL LLVisualParamHint::render()
 	gGL.pushMatrix();
 	gGL.loadIdentity();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	LLGLSUIDefault gls_ui;
 	//LLGLState::verify(TRUE);
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index 3c6c9c905a..19b25a01fe 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -388,7 +388,7 @@ static bool handleJoystickChanged(const LLSD& newvalue)
 
 static bool handleUseOcclusionChanged(const LLSD& newvalue)
 {
-	LLPipeline::sUseOcclusion = (newvalue.asBoolean() && gGLManager.mHasOcclusionQuery && LLGLSLShader::sNoFixedFunction
+	LLPipeline::sUseOcclusion = (newvalue.asBoolean() && gGLManager.mHasOcclusionQuery
 		&& LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") && !gUseWireframe) ? 2 : 0;
 	return true;
 }
diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 38ac4275cf..60ba07d3af 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -717,7 +717,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 
 		LLGLState::checkStates();
 		LLGLState::checkTextureChannels();
-		LLGLState::checkClientArrays();
 
 		static LLCullResult result;
 		LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
@@ -727,8 +726,7 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 
 		LLGLState::checkStates();
 		LLGLState::checkTextureChannels();
-		LLGLState::checkClientArrays();
-
+		
 		LLAppViewer::instance()->pingMainloopTimeout("Display:Swap");
 		
 		{ 
@@ -744,7 +742,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 
 			LLGLState::checkStates();
 			LLGLState::checkTextureChannels();
-			LLGLState::checkClientArrays();
 
 			if (!for_snapshot)
 			{
@@ -758,7 +755,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 
 				LLGLState::checkStates();
 				LLGLState::checkTextureChannels();
-				LLGLState::checkClientArrays();
 
 				glh::matrix4f proj = get_current_projection();
 				glh::matrix4f mod = get_current_modelview();
@@ -777,14 +773,12 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 
 				LLGLState::checkStates();
 				LLGLState::checkTextureChannels();
-				LLGLState::checkClientArrays();
 
 			}
 			glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 		}
 
 		LLGLState::checkStates();
-		LLGLState::checkClientArrays();
 
 		//if (!for_snapshot)
 		{
@@ -796,7 +790,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 		}
 
 		LLGLState::checkStates();
-		LLGLState::checkClientArrays();
 
 		//////////////////////////////////////
 		//
@@ -836,7 +829,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 		}
 
 		LLGLState::checkStates();
-		LLGLState::checkClientArrays();
 
 		///////////////////////////////////
 		//
@@ -868,7 +860,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 		LLSceneMonitor::getInstance()->fetchQueryResult();
 		
 		LLGLState::checkStates();
-		LLGLState::checkClientArrays();
 
 		LLPipeline::sUseOcclusion = occlusion;
 
@@ -927,7 +918,6 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 		LLPipeline::sUnderWaterRender = LLViewerCamera::getInstance()->cameraUnderWater() ? TRUE : FALSE;
 
 		LLGLState::checkStates();
-		LLGLState::checkClientArrays();
 
 		stop_glerror();
 
@@ -960,7 +950,7 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 			LL_PROFILE_ZONE_NAMED("display - 4")
 			LLViewerCamera::sCurCameraID = LLViewerCamera::CAMERA_WORLD;
 
-			if (gSavedSettings.getBOOL("RenderDepthPrePass") && LLGLSLShader::sNoFixedFunction)
+			if (gSavedSettings.getBOOL("RenderDepthPrePass"))
 			{
 				gGL.setColorMask(false, false);
 
@@ -1450,10 +1440,7 @@ void render_ui_3d()
 
 	stop_glerror();
 	
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	// Coordinate axes
 	if (gSavedSettings.getBOOL("ShowAxes"))
@@ -1583,10 +1570,7 @@ void render_ui_2d()
 
 void render_disconnected_background()
 {
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	gGL.color4f(1,1,1,1);
 	if (!gDisconnectedImagep && gDisconnected)
@@ -1658,11 +1642,7 @@ void render_disconnected_background()
 	}
 	gGL.flush();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.unbind();
-	}
-
+	gUIProgram.unbind();
 }
 
 void display_cleanup()
diff --git a/indra/newview/llviewerjointmesh.cpp b/indra/newview/llviewerjointmesh.cpp
index 3e385a46e4..98d8f91116 100644
--- a/indra/newview/llviewerjointmesh.cpp
+++ b/indra/newview/llviewerjointmesh.cpp
@@ -225,7 +225,7 @@ U32 LLViewerJointMesh::drawShape( F32 pixelArea, BOOL first_pass, BOOL is_dummy)
 	if (!mValid || !mMesh || !mFace || !mVisible || 
 		!mFace->getVertexBuffer() ||
 		mMesh->getNumFaces() == 0 ||
-		(LLGLSLShader::sNoFixedFunction && LLGLSLShader::sCurBoundShaderPtr == NULL))
+		LLGLSLShader::sCurBoundShaderPtr == NULL)
 	{
 		return 0;
 	}
@@ -246,7 +246,7 @@ U32 LLViewerJointMesh::drawShape( F32 pixelArea, BOOL first_pass, BOOL is_dummy)
 
 	stop_glerror();
 	
-	LLGLSSpecular specular(LLColor4(1.f,1.f,1.f,1.f), (mFace->getPool()->getShaderLevel() > 0 || LLGLSLShader::sNoFixedFunction) ? 0.f : mShiny);
+	LLGLSSpecular specular(LLColor4(1.f,1.f,1.f,1.f), 0.f);
 
 	//----------------------------------------------------------------
 	// setup current texture
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index b626a8ebea..d37678e24f 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -471,7 +471,6 @@ void LLViewerShaderMgr::setShaders()
     }
     mMaxAvatarShaderLevel = 0;
 
-    LLGLSLShader::sNoFixedFunction = false;
     LLVertexBuffer::unbind();
 
     llassert((gGLManager.mGLSLVersionMajor > 1 || gGLManager.mGLSLVersionMinor >= 10));
@@ -482,9 +481,6 @@ void LLViewerShaderMgr::setShaders()
     bool doingWindLight          = hasWindLightShaders && gSavedSettings.getBOOL("WindLightUseAtmosShaders");
     bool useRenderDeferred       = doingWindLight && canRenderDeferred && gSavedSettings.getBOOL("RenderDeferred");
 
-    //using shaders, disable fixed function
-    LLGLSLShader::sNoFixedFunction = true;
-
     S32 light_class = 3;
     S32 interface_class = 2;
     S32 env_class = 2;
@@ -556,12 +552,12 @@ void LLViewerShaderMgr::setShaders()
     }
     else
     {
-        LL_WARNS() << "Failed to load basic shaders." << LL_ENDL;
+        LL_ERRS() << "Unable to load basic shaders, verify graphics driver installed and current." << LL_ENDL;
         llassert(loaded);
+        reentrance = false; // For hygiene only, re-try probably helps nothing 
+        return;
     }
 
-    if (loaded)
-    {
         gPipeline.mVertexShadersEnabled = TRUE;
         gPipeline.mVertexShadersLoaded = 1;
 
@@ -686,8 +682,8 @@ void LLViewerShaderMgr::setShaders()
                 mShaderLevel[SHADER_AVATAR] = 0;
                 mShaderLevel[SHADER_DEFERRED] = 0;
 
-                gSavedSettings.setBOOL("RenderDeferred", FALSE);
-                gSavedSettings.setBOOL("RenderAvatarCloth", FALSE);
+                    gSavedSettings.setBOOL("RenderDeferred", FALSE);
+                    gSavedSettings.setBOOL("RenderAvatarCloth", FALSE);
 
                 loadShadersAvatar(); // unloads
 
@@ -718,21 +714,9 @@ void LLViewerShaderMgr::setShaders()
             setShaders();
             return;
         }
-    }
-    else
-    {
-        LLGLSLShader::sNoFixedFunction = false;
-        gPipeline.mVertexShadersEnabled = FALSE;
-        gPipeline.mVertexShadersLoaded = 0;
-        mShaderLevel[SHADER_LIGHTING] = 0;
-        mShaderLevel[SHADER_INTERFACE] = 0;
-        mShaderLevel[SHADER_ENVIRONMENT] = 0;
-        mShaderLevel[SHADER_WATER] = 0;
-        mShaderLevel[SHADER_OBJECT] = 0;
-        mShaderLevel[SHADER_EFFECT] = 0;
-        mShaderLevel[SHADER_WINDLIGHT] = 0;
-        mShaderLevel[SHADER_AVATAR] = 0;
-    }
+
+    // gPipeline.mVertexShadersEnabled = FALSE;
+    // gPipeline.mVertexShadersLoaded = 0;
     
     if (gViewerWindow)
     {
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 198007aaa1..10631afd13 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -2065,20 +2065,6 @@ void LLViewerWindow::initGLDefaults()
 {
 	gGL.setSceneBlendType(LLRender::BT_ALPHA);
 
-	if (!LLGLSLShader::sNoFixedFunction)
-	{ //initialize fixed function state
-		glColorMaterial( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE );
-
-		glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,LLColor4::black.mV);
-		glMaterialfv(GL_FRONT_AND_BACK,GL_DIFFUSE,LLColor4::white.mV);
-
-		// lights for objects
-		glShadeModel( GL_SMOOTH );
-
-		gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
-		gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
-	}
-
 	glPixelStorei(GL_PACK_ALIGNMENT,1);
 	glPixelStorei(GL_UNPACK_ALIGNMENT,1);
 
@@ -2694,10 +2680,7 @@ void LLViewerWindow::drawDebugText()
 	gGL.color4f(1,1,1,1);
 	gGL.pushMatrix();
 	gGL.pushUIMatrix();
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 	{
 		// scale view by UI global scale factor and aspect ratio correction factor
 		gGL.scaleUI(mDisplayScale.mV[VX], mDisplayScale.mV[VY], 1.f);
@@ -2707,10 +2690,7 @@ void LLViewerWindow::drawDebugText()
 	gGL.popMatrix();
 
 	gGL.flush();
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.unbind();
-	}
+	gUIProgram.unbind();
 }
 
 void LLViewerWindow::draw()
@@ -2756,10 +2736,7 @@ void LLViewerWindow::draw()
 	// Draw all nested UI views.
 	// No translation needed, this view is glued to 0,0
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	gGL.pushMatrix();
 	LLUI::pushMatrix();
@@ -2835,14 +2812,9 @@ void LLViewerWindow::draw()
 	LLUI::popMatrix();
 	gGL.popMatrix();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.unbind();
-	}
+	gUIProgram.unbind();
 
-//#if LL_DEBUG
 	LLView::sIsDrawing = FALSE;
-//#endif
 }
 
 // Takes a single keyup event, usually when UI is visible
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index 84bb67a03d..da856beb6e 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -5053,11 +5053,6 @@ U32 LLVOAvatar::renderSkinned()
 		bool should_alpha_mask = shouldAlphaMask();
 		LLGLState test(GL_ALPHA_TEST, should_alpha_mask);
 		
-		if (should_alpha_mask && !LLGLSLShader::sNoFixedFunction)
-		{
-			gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
-		}
-		
 		BOOL first_pass = TRUE;
 		if (!LLDrawPoolAvatar::sSkipOpaque)
 		{
@@ -5104,11 +5099,6 @@ U32 LLVOAvatar::renderSkinned()
 			}
 		}
 
-		if (should_alpha_mask && !LLGLSLShader::sNoFixedFunction)
-		{
-			gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
-		}
-
 		if (!LLDrawPoolAvatar::sSkipTransparent || LLPipeline::sImpostorRender)
 		{
 			LLGLState blend(GL_BLEND, !mIsDummy);
@@ -5193,11 +5183,6 @@ U32 LLVOAvatar::renderRigid()
 	bool should_alpha_mask = shouldAlphaMask();
 	LLGLState test(GL_ALPHA_TEST, should_alpha_mask);
 
-	if (should_alpha_mask && !LLGLSLShader::sNoFixedFunction)
-	{
-		gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
-	}
-
 	if (isTextureVisible(TEX_EYES_BAKED) || (getOverallAppearance() == AOA_JELLYDOLL && !isControlAvatar()) || isUIAvatar())
 	{
 		LLViewerJoint* eyeball_left = getViewerJoint(MESH_ID_EYEBALL_LEFT);
@@ -5212,11 +5197,6 @@ U32 LLVOAvatar::renderRigid()
 		}
 	}
 
-	if (should_alpha_mask && !LLGLSLShader::sNoFixedFunction)
-	{
-		gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
-	}
-	
 	return num_indices;
 }
 
diff --git a/indra/newview/llvosurfacepatch.cpp b/indra/newview/llvosurfacepatch.cpp
index 4d25e8c7bd..8fbecbc7d7 100644
--- a/indra/newview/llvosurfacepatch.cpp
+++ b/indra/newview/llvosurfacepatch.cpp
@@ -59,63 +59,8 @@ public:
 	// virtual
 	void setupVertexBuffer(U32 data_mask)
 	{	
-		if (LLGLSLShader::sNoFixedFunction)
-		{ //just use default if shaders are in play
-			LLVertexBuffer::setupVertexBuffer(data_mask & ~(MAP_TEXCOORD2 | MAP_TEXCOORD3));
-			return;
-		}
-
-		volatile U8* base = useVBOs() ? (U8*) mAlignedOffset : mMappedData;
-
-		//assume tex coords 2 and 3 are present
-		U32 type_mask = mTypeMask | MAP_TEXCOORD2 | MAP_TEXCOORD3;
-
-		if ((data_mask & type_mask) != data_mask)
-		{
-			LL_ERRS() << "LLVertexBuffer::setupVertexBuffer missing required components for supplied data mask." << LL_ENDL;
-		}
-
-		if (data_mask & MAP_NORMAL)
-		{
-			glNormalPointer(GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_NORMAL], (void*)(base + mOffsets[TYPE_NORMAL]));
-		}
-		if (data_mask & MAP_TEXCOORD3)
-		{ //substitute tex coord 1 for tex coord 3
-			glClientActiveTextureARB(GL_TEXTURE3_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD1], (void*)(base + mOffsets[TYPE_TEXCOORD1]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD2)
-		{ //substitute tex coord 0 for tex coord 2
-			glClientActiveTextureARB(GL_TEXTURE2_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD0], (void*)(base + mOffsets[TYPE_TEXCOORD0]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD1)
-		{
-			glClientActiveTextureARB(GL_TEXTURE1_ARB);
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD1], (void*)(base + mOffsets[TYPE_TEXCOORD1]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TANGENT)
-		{
-			glClientActiveTextureARB(GL_TEXTURE2_ARB);
-			glTexCoordPointer(3,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TANGENT], (void*)(base + mOffsets[TYPE_TANGENT]));
-			glClientActiveTextureARB(GL_TEXTURE0_ARB);
-		}
-		if (data_mask & MAP_TEXCOORD0)
-		{
-			glTexCoordPointer(2,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_TEXCOORD0], (void*)(base + mOffsets[TYPE_TEXCOORD0]));
-		}
-		if (data_mask & MAP_COLOR)
-		{
-			glColorPointer(4, GL_UNSIGNED_BYTE, LLVertexBuffer::sTypeSize[TYPE_COLOR], (void*)(base + mOffsets[TYPE_COLOR]));
-		}
-		
-		if (data_mask & MAP_VERTEX)
-		{
-			glVertexPointer(3,GL_FLOAT, LLVertexBuffer::sTypeSize[TYPE_VERTEX], (void*)(base + 0));
-		}
+		LLVertexBuffer::setupVertexBuffer(data_mask & ~(MAP_TEXCOORD2 | MAP_TEXCOORD3));
+		return;
 	}
 };
 
diff --git a/indra/newview/llvowater.cpp b/indra/newview/llvowater.cpp
index efe6aa158e..089a7712c0 100644
--- a/indra/newview/llvowater.cpp
+++ b/indra/newview/llvowater.cpp
@@ -143,7 +143,7 @@ BOOL LLVOWater::updateGeometry(LLDrawable *drawable)
 	static const unsigned int vertices_per_quad = 4;
 	static const unsigned int indices_per_quad = 6;
 
-	const S32 size = LLPipeline::sRenderTransparentWater && LLGLSLShader::sNoFixedFunction ? 16 : 1;
+	const S32 size = LLPipeline::sRenderTransparentWater ? 16 : 1;
 
 	const S32 num_quads = size * size;
 	face->setSize(vertices_per_quad * num_quads,
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 1f4fdca2e7..8881b78593 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -1061,7 +1061,6 @@ void LLPipeline::refreshCachedSettings()
 
 	LLPipeline::sUseOcclusion = 
 			(!gUseWireframe
-			&& LLGLSLShader::sNoFixedFunction
 			&& LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") 
 			&& gSavedSettings.getBOOL("UseOcclusion") 
 			&& gGLManager.mHasOcclusionQuery) ? 2 : 0;
@@ -2338,8 +2337,7 @@ static LLTrace::BlockTimerStatHandle FTM_CULL("Object Culling");
 void LLPipeline::updateCull(LLCamera& camera, LLCullResult& result, S32 water_clip, LLPlane* planep)
 {
 	static LLCachedControl<bool> use_occlusion(gSavedSettings,"UseOcclusion");
-	static bool can_use_occlusion = LLGLSLShader::sNoFixedFunction
-									&& LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") 
+	static bool can_use_occlusion = LLFeatureManager::getInstance()->isFeatureAvailable("UseOcclusion") 
 									&& gGLManager.mHasOcclusionQuery;
 
 	LL_RECORD_BLOCK_TIME(FTM_CULL);
@@ -2650,7 +2648,7 @@ void LLPipeline::doOcclusion(LLCamera& camera)
 		LLGLDisable cull(GL_CULL_FACE);
 
 		
-		bool bind_shader = LLGLSLShader::sNoFixedFunction && LLGLSLShader::sCurBoundShader == 0;
+		bool bind_shader = (LLGLSLShader::sCurBoundShader == 0);
 		if (bind_shader)
 		{
 			if (LLPipeline::sShadowRender)
@@ -3992,10 +3990,7 @@ void render_hud_elements()
 	
 	gGL.color4f(1,1,1,1);
 	
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 	LLGLDepthTest depth(GL_TRUE, GL_FALSE);
 
 	if (!LLPipeline::sReflectionRender && gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))
@@ -4027,10 +4022,7 @@ void render_hud_elements()
 		LLHUDText::renderAllHUD();
 	}
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.unbind();
-	}
+	gUIProgram.unbind();
 	gGL.flush();
 }
 
@@ -4062,10 +4054,7 @@ void LLPipeline::renderHighlights()
 
 		gGL.setColorMask(false, false);
 
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gHighlightProgram.bind();
-        }
+        gHighlightProgram.bind();
 
 		for (std::set<HighlightItem>::iterator iter = mHighlightSet.begin(); iter != mHighlightSet.end(); ++iter)
 		{
@@ -4297,7 +4286,6 @@ void LLPipeline::renderGeom(LLCamera& camera, bool forceVBOUpdate)
 	// Do verification of GL state
 	LLGLState::checkStates();
 	LLGLState::checkTextureChannels();
-	LLGLState::checkClientArrays();
 	if (mRenderDebugMask & RENDER_DEBUG_VERIFY)
 	{
 		if (!verify())
@@ -4546,7 +4534,6 @@ void LLPipeline::renderGeomDeferred(LLCamera& camera)
 
 		LLGLState::checkStates();
 		LLGLState::checkTextureChannels();
-		LLGLState::checkClientArrays();
 
 		U32 cur_type = 0;
 
@@ -4819,10 +4806,7 @@ void LLPipeline::renderPhysicsDisplay()
 
 	gGL.setColorMask(true, false);
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gDebugProgram.bind();
-	}
+	gDebugProgram.bind();
 
 	for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin(); 
 			iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
@@ -4843,11 +4827,7 @@ void LLPipeline::renderPhysicsDisplay()
 
 	gGL.flush();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gDebugProgram.unbind();
-	}
-
+	gDebugProgram.unbind();
 	mPhysicsDisplay.flush();
 }
 
@@ -4874,13 +4854,10 @@ void LLPipeline::renderDebug()
 
 				if ( pathfindingCharacter->getVisible() || gAgentCamera.cameraMouselook() )			
 				{	
-					if (LLGLSLShader::sNoFixedFunction)
-					{					
-						gPathfindingProgram.bind();			
-						gPathfindingProgram.uniform1f(sTint, 1.f);
-						gPathfindingProgram.uniform1f(sAmbiance, 1.f);
-						gPathfindingProgram.uniform1f(sAlphaScale, 1.f);
-					}
+					gPathfindingProgram.bind();			
+					gPathfindingProgram.uniform1f(sTint, 1.f);
+					gPathfindingProgram.uniform1f(sAmbiance, 1.f);
+					gPathfindingProgram.uniform1f(sAlphaScale, 1.f);
 
 					//Requried character physics capsule render parameters
 					LLUUID id;					
@@ -4889,21 +4866,14 @@ void LLPipeline::renderDebug()
 				
 					if ( pathfindingCharacter->isPhysicsCapsuleEnabled( id, pos, rot ) )
 					{
-						if (LLGLSLShader::sNoFixedFunction)
-						{					
-							//remove blending artifacts
-							gGL.setColorMask(false, false);
-							llPathingLibInstance->renderSimpleShapeCapsuleID( gGL, id, pos, rot );				
-							gGL.setColorMask(true, false);
-							LLGLEnable blend(GL_BLEND);
-							gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
-							llPathingLibInstance->renderSimpleShapeCapsuleID( gGL, id, pos, rot );
-							gPathfindingProgram.bind();
-						}
-						else
-						{
-							llPathingLibInstance->renderSimpleShapeCapsuleID( gGL, id, pos, rot );
-						}
+						//remove blending artifacts
+						gGL.setColorMask(false, false);
+						llPathingLibInstance->renderSimpleShapeCapsuleID( gGL, id, pos, rot );				
+						gGL.setColorMask(true, false);
+						LLGLEnable blend(GL_BLEND);
+						gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
+						llPathingLibInstance->renderSimpleShapeCapsuleID( gGL, id, pos, rot );
+						gPathfindingProgram.bind();
 					}
 				}
 			}
@@ -4919,14 +4889,11 @@ void LLPipeline::renderDebug()
 				{				
 					F32 ambiance = gSavedSettings.getF32("PathfindingAmbiance");
 
-					if (LLGLSLShader::sNoFixedFunction)
-					{					
-						gPathfindingProgram.bind();
+					gPathfindingProgram.bind();
 			
-						gPathfindingProgram.uniform1f(sTint, 1.f);
-						gPathfindingProgram.uniform1f(sAmbiance, ambiance);
-						gPathfindingProgram.uniform1f(sAlphaScale, 1.f);
-					}
+					gPathfindingProgram.uniform1f(sTint, 1.f);
+					gPathfindingProgram.uniform1f(sAmbiance, ambiance);
+					gPathfindingProgram.uniform1f(sAlphaScale, 1.f);
 
 					if ( !pathfindingConsole->isRenderWorld() )
 					{
@@ -4958,18 +4925,11 @@ void LLPipeline::renderDebug()
 						}
 						
 						//render edges
-						if (LLGLSLShader::sNoFixedFunction)
-						{
-							gPathfindingNoNormalsProgram.bind();
-							gPathfindingNoNormalsProgram.uniform1f(sTint, 1.f);
-							gPathfindingNoNormalsProgram.uniform1f(sAlphaScale, 1.f);
-							llPathingLibInstance->renderNavMeshEdges();
-							gPathfindingProgram.bind();
-						}
-						else
-						{
-							llPathingLibInstance->renderNavMeshEdges();
-						}
+						gPathfindingNoNormalsProgram.bind();
+						gPathfindingNoNormalsProgram.uniform1f(sTint, 1.f);
+						gPathfindingNoNormalsProgram.uniform1f(sAlphaScale, 1.f);
+						llPathingLibInstance->renderNavMeshEdges();
+						gPathfindingProgram.bind();
 
 						gGL.flush();
 						glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );	
@@ -4980,53 +4940,31 @@ void LLPipeline::renderDebug()
 					if ( LLPathfindingPathTool::getInstance()->isRenderPath() )
 					{
 						//The path
-						if (LLGLSLShader::sNoFixedFunction)
-						{
-							gUIProgram.bind();
-							gGL.getTexUnit(0)->bind(LLViewerFetchedTexture::sWhiteImagep);
-							llPathingLibInstance->renderPath();
-							gPathfindingProgram.bind();
-						}
-						else
-						{
-							llPathingLibInstance->renderPath();
-						}
-						//The bookends
-						if (LLGLSLShader::sNoFixedFunction)
-						{
-							//remove blending artifacts
-							gGL.setColorMask(false, false);
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_START );
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_END );
+						gUIProgram.bind();
+						gGL.getTexUnit(0)->bind(LLViewerFetchedTexture::sWhiteImagep);
+						llPathingLibInstance->renderPath();
+						gPathfindingProgram.bind();
+
+                        //The bookends
+						//remove blending artifacts
+						gGL.setColorMask(false, false);
+						llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_START );
+						llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_END );
 						
-							gGL.setColorMask(true, false);
-							//render the bookends
-							LLGLEnable blend(GL_BLEND);
-							gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_START );
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_END );
-							gPathfindingProgram.bind();
-						}
-						else
-						{
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_START );
-							llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_END );
-						}
-					
+						gGL.setColorMask(true, false);
+						//render the bookends
+						LLGLEnable blend(GL_BLEND);
+						gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
+						llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_START );
+						llPathingLibInstance->renderPathBookend( gGL, LLPathingLib::LLPL_END );
+						gPathfindingProgram.bind();
 					}
 				
 					if ( pathfindingConsole->isRenderWaterPlane() )
 					{	
-						if (LLGLSLShader::sNoFixedFunction)
-						{
-							LLGLEnable blend(GL_BLEND);
-							gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
-							llPathingLibInstance->renderSimpleShapes( gGL, gAgent.getRegion()->getWaterHeight() );
-						}
-						else
-						{
-							llPathingLibInstance->renderSimpleShapes( gGL, gAgent.getRegion()->getWaterHeight() );					
-						}
+						LLGLEnable blend(GL_BLEND);
+						gPathfindingProgram.uniform1f(sAlphaScale, 0.90f);
+						llPathingLibInstance->renderSimpleShapes( gGL, gAgent.getRegion()->getWaterHeight() );
 					}
 				//physics/exclusion shapes
 				if ( pathfindingConsole->isRenderAnyShapes() )
@@ -5157,18 +5095,11 @@ void LLPipeline::renderDebug()
 						}
 
 						//render edges
-						if (LLGLSLShader::sNoFixedFunction)
-						{
-							gPathfindingNoNormalsProgram.bind();
-							gPathfindingNoNormalsProgram.uniform1f(sTint, gSavedSettings.getF32("PathfindingXRayTint"));
-							gPathfindingNoNormalsProgram.uniform1f(sAlphaScale, gSavedSettings.getF32("PathfindingXRayOpacity"));
-							llPathingLibInstance->renderNavMeshEdges();
-							gPathfindingProgram.bind();
-						}
-						else
-						{
-							llPathingLibInstance->renderNavMeshEdges();
-						}
+						gPathfindingNoNormalsProgram.bind();
+						gPathfindingNoNormalsProgram.uniform1f(sTint, gSavedSettings.getF32("PathfindingXRayTint"));
+						gPathfindingNoNormalsProgram.uniform1f(sAlphaScale, gSavedSettings.getF32("PathfindingXRayOpacity"));
+						llPathingLibInstance->renderNavMeshEdges();
+						gPathfindingProgram.bind();
 					
 						gGL.flush();
 						glLineWidth(1.0f);	
@@ -5177,10 +5108,7 @@ void LLPipeline::renderDebug()
 					glPolygonOffset(0.f, 0.f);
 
 					gGL.flush();
-					if (LLGLSLShader::sNoFixedFunction)
-					{
-						gPathfindingProgram.unbind();
-					}
+					gPathfindingProgram.unbind();
 				}
 			}
 		}
@@ -5195,10 +5123,7 @@ void LLPipeline::renderDebug()
 	
 	if (!hud_only && !mDebugBlips.empty())
 	{ //render debug blips
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gUIProgram.bind();
-		}
+		gUIProgram.bind();
 
 		gGL.getTexUnit(0)->bind(LLViewerFetchedTexture::sWhiteImagep, true);
 
@@ -5262,7 +5187,7 @@ void LLPipeline::renderDebug()
 		}
 	}
 
-	if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCCLUSION) && LLGLSLShader::sNoFixedFunction)
+	if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCCLUSION))
 	{ //render visible selected group occlusion geometry
 		gDebugProgram.bind();
 		LLGLDepthTest depth(GL_TRUE, GL_FALSE);
@@ -5284,44 +5209,38 @@ void LLPipeline::renderDebug()
 
 	visible_selected_groups.clear();
 
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.bind();
-	}
+	gUIProgram.bind();
 
 	if (hasRenderDebugMask(LLPipeline::RENDER_DEBUG_RAYCAST) && !hud_only)
 	{ //draw crosshairs on particle intersection
 		if (gDebugRaycastParticle)
 		{
-			if (LLGLSLShader::sNoFixedFunction)
-			{ //this debug display requires shaders
-				gDebugProgram.bind();
+			gDebugProgram.bind();
 
-				gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+			gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 
-				LLVector3 center(gDebugRaycastParticleIntersection.getF32ptr());
-				LLVector3 size(0.1f, 0.1f, 0.1f);
+			LLVector3 center(gDebugRaycastParticleIntersection.getF32ptr());
+			LLVector3 size(0.1f, 0.1f, 0.1f);
 
-				LLVector3 p[6];
+			LLVector3 p[6];
 
-				p[0] = center + size.scaledVec(LLVector3(1,0,0));
-				p[1] = center + size.scaledVec(LLVector3(-1,0,0));
-				p[2] = center + size.scaledVec(LLVector3(0,1,0));
-				p[3] = center + size.scaledVec(LLVector3(0,-1,0));
-				p[4] = center + size.scaledVec(LLVector3(0,0,1));
-				p[5] = center + size.scaledVec(LLVector3(0,0,-1));
+			p[0] = center + size.scaledVec(LLVector3(1,0,0));
+			p[1] = center + size.scaledVec(LLVector3(-1,0,0));
+			p[2] = center + size.scaledVec(LLVector3(0,1,0));
+			p[3] = center + size.scaledVec(LLVector3(0,-1,0));
+			p[4] = center + size.scaledVec(LLVector3(0,0,1));
+			p[5] = center + size.scaledVec(LLVector3(0,0,-1));
 				
-				gGL.begin(LLRender::LINES);
-				gGL.diffuseColor3f(1.f, 1.f, 0.f);
-				for (U32 i = 0; i < 6; i++)
-				{
-					gGL.vertex3fv(p[i].mV);
-				}
-				gGL.end();
-				gGL.flush();
-
-				gDebugProgram.unbind();
+			gGL.begin(LLRender::LINES);
+			gGL.diffuseColor3f(1.f, 1.f, 0.f);
+			for (U32 i = 0; i < 6; i++)
+			{
+				gGL.vertex3fv(p[i].mV);
 			}
+			gGL.end();
+			gGL.flush();
+
+			gDebugProgram.unbind();
 		}
 	}
 
@@ -5554,10 +5473,7 @@ void LLPipeline::renderDebug()
 	}
 
 	gGL.flush();
-	if (LLGLSLShader::sNoFixedFunction)
-	{
-		gUIProgram.unbind();
-	}
+	gUIProgram.unbind();
 }
 
 void LLPipeline::rebuildPools()
@@ -6226,11 +6142,6 @@ void LLPipeline::setupHWLights(LLDrawPool* pool)
     LLEnvironment& environment = LLEnvironment::instance();
     LLSettingsSky::ptr_t psky = environment.getCurrentSky();
 
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		gGL.syncMatrices();
-	}
-
     // Ambient
     LLColor4 ambient = psky->getTotalAmbient();
 		gGL.setAmbientLightColor(ambient);
@@ -6429,11 +6340,6 @@ void LLPipeline::setupHWLights(LLDrawPool* pool)
     // prev site of forward (non-deferred) character light injection, removed by SL-13522 09/20
 
 	// Init GL state
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glDisable(GL_LIGHTING);
-	}
-
 	for (S32 i = 0; i < 8; ++i)
 	{
 		gGL.getLight(i)->disable();
@@ -6452,13 +6358,6 @@ void LLPipeline::enableLights(U32 mask)
 	if (mLightMask != mask)
 	{
 		stop_glerror();
-		if (!mLightMask)
-		{
-			if (!LLGLSLShader::sNoFixedFunction)
-			{
-				glEnable(GL_LIGHTING);
-			}
-		}
 		if (mask)
 		{
 			stop_glerror();
@@ -6478,13 +6377,6 @@ void LLPipeline::enableLights(U32 mask)
 			}
 			stop_glerror();
 		}
-		else
-		{
-			if (!LLGLSLShader::sNoFixedFunction)
-			{
-				glDisable(GL_LIGHTING);
-			}
-		}
 		mLightMask = mask;
 		stop_glerror();
 	}
@@ -6535,11 +6427,6 @@ void LLPipeline::enableLightsPreview()
 {
 	disableLights();
 
-	if (!LLGLSLShader::sNoFixedFunction)
-	{
-		glEnable(GL_LIGHTING);
-	}
-
 	LLColor4 ambient = PreviewAmbientColor;
 	gGL.setAmbientLightColor(ambient);
 
@@ -8093,18 +7980,7 @@ void LLPipeline::renderFinalize()
 
         LLGLDisable blend(GL_BLEND);
 
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gGlowCombineProgram.bind();
-        }
-        else
-        {
-            // tex unit 0
-            gGL.getTexUnit(0)->setTextureColorBlend(LLTexUnit::TBO_REPLACE, LLTexUnit::TBS_TEX_COLOR);
-            // tex unit 1
-            gGL.getTexUnit(1)->setTextureColorBlend(LLTexUnit::TBO_ADD, LLTexUnit::TBS_TEX_COLOR,
-                                                    LLTexUnit::TBS_PREV_COLOR);
-        }
+        gGlowCombineProgram.bind();
 
         gGL.getTexUnit(0)->bind(&mGlow[1]);
         gGL.getTexUnit(1)->bind(&mScreen);
@@ -8114,28 +7990,14 @@ void LLPipeline::renderFinalize()
         buff->setBuffer(mask);
         buff->drawArrays(LLRender::TRIANGLE_STRIP, 0, 3);
 
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gGlowCombineProgram.unbind();
-        }
-        else
-        {
-            gGL.getTexUnit(1)->disable();
-            gGL.getTexUnit(1)->setTextureBlendType(LLTexUnit::TB_MULT);
-
-            gGL.getTexUnit(0)->activate();
-            gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
-        }
+        gGlowCombineProgram.unbind();
     }
 
     gGL.setSceneBlendType(LLRender::BT_ALPHA);
 
     if (hasRenderDebugMask(LLPipeline::RENDER_DEBUG_PHYSICS_SHAPES))
     {
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gSplatTextureRectProgram.bind();
-        }
+        gSplatTextureRectProgram.bind();
 
         gGL.setColorMask(true, false);
 
@@ -8161,10 +8023,7 @@ void LLPipeline::renderFinalize()
         gGL.end();
         gGL.flush();
 
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gSplatTextureRectProgram.unbind();
-        }
+        gSplatTextureRectProgram.unbind();
     }
 
     if (LLRenderTarget::sUseFBO)
@@ -9502,17 +9361,11 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
                     renderGeom(camera);
                 }
 
-                if (LLGLSLShader::sNoFixedFunction)
-                {
-                    gUIProgram.bind();
-                }
+                gUIProgram.bind();
 
                 LLWorld::getInstance()->renderPropertyLines();
 
-                if (LLGLSLShader::sNoFixedFunction)
-                {
-                    gUIProgram.unbind();
-                }
+                gUIProgram.unbind();
 
                 mWaterDis.flush();
             }
@@ -10066,10 +9919,7 @@ void LLPipeline::generateHighlight(LLCamera& camera)
 		gGL.setColorMask(true, true);
 		mHighlight.clear();
 
-        if (LLGLSLShader::sNoFixedFunction)
-        {
-            gHighlightProgram.bind();
-        }
+        gHighlightProgram.bind();
 
 		gGL.getTexUnit(0)->bind(LLViewerFetchedTexture::sWhiteImagep);
 		for (std::set<HighlightItem>::iterator iter = mHighlightSet.begin(); iter != mHighlightSet.end(); )
@@ -10951,7 +10801,6 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
     LL_RECORD_BLOCK_TIME(FTM_GENERATE_IMPOSTOR);
 	LLGLState::checkStates();
 	LLGLState::checkTextureChannels();
-	LLGLState::checkClientArrays();
 
 	static LLCullResult result;
 	result.clear();
@@ -11210,11 +11059,7 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 
 		static const F32 clip_plane = 0.99999f;
 
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gDebugProgram.bind();
-		}
-
+		gDebugProgram.bind();
 
 		if (visually_muted)
 		{	// Visually muted avatar
@@ -11228,7 +11073,6 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 			gGL.diffuseColor4fv(LLColor4::pink.mV );
 		}
 
-		{
 		gGL.begin(LLRender::QUADS);
 		gGL.vertex3f(-1, -1, clip_plane);
 		gGL.vertex3f(1, -1, clip_plane);
@@ -11236,12 +11080,8 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 		gGL.vertex3f(-1, 1, clip_plane);
 		gGL.end();
 		gGL.flush();
-		}
 
-		if (LLGLSLShader::sNoFixedFunction)
-		{
-			gDebugProgram.unbind();
-		}
+		gDebugProgram.unbind();
 
 		gGL.popMatrix();
 		gGL.matrixMode(LLRender::MM_MODELVIEW);
@@ -11270,7 +11110,6 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 	LLVertexBuffer::unbind();
 	LLGLState::checkStates();
 	LLGLState::checkTextureChannels();
-	LLGLState::checkClientArrays();
 }
 
 bool LLPipeline::hasRenderBatches(const U32 type) const