8 files changed, 11 insertions, 66 deletions
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 3d49a9eb78..98409106a1 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -1010,19 +1010,6 @@ bool LLAppViewer::init()
 		return 0;
 	}
 
-    // If we don't have the right shader requirements.
-    if (!gGLManager.mHasShaderObjects
-        || !gGLManager.mHasVertexShader
-        || !gGLManager.mHasFragmentShader)
-    {
-        LLUIString details = LLNotifications::instance().getGlobalString("UnsupportedShaderRequirements");
-        OSMessageBox(
-            details.getString(),
-            LLStringUtil::null,
-            OSMB_OK);
-        return 0;
-    }
-
 	// Without SSE2 support we will crash almost immediately, warn here.
 	if (!gSysCPU.hasSSE2())
 	{
diff --git a/indra/newview/lldrawpoolsimple.cpp b/indra/newview/lldrawpoolsimple.cpp
index f211cf6e27..74e6665a96 100644
--- a/indra/newview/lldrawpoolsimple.cpp
+++ b/indra/newview/lldrawpoolsimple.cpp
@@ -199,11 +199,7 @@ void LLDrawPoolSimple::beginRenderPass(S32 pass)
 	}
 	else 
 	{
-		// don't use shaders!
-		if (gGLManager.mHasShaderObjects)
-		{
-			LLGLSLShader::bindNoShader();
-		}		
+		LLGLSLShader::bindNoShader();
 	}
 }
 
@@ -301,11 +297,7 @@ void LLDrawPoolAlphaMask::beginRenderPass(S32 pass)
 	}
 	else 
 	{
-		// don't use shaders!
-		if (gGLManager.mHasShaderObjects)
-		{
-			LLGLSLShader::bindNoShader();
-		}		
+		LLGLSLShader::bindNoShader();
 	}
 }
 
@@ -392,11 +384,7 @@ void LLDrawPoolFullbrightAlphaMask::beginRenderPass(S32 pass)
 	}
 	else 
 	{
-		// don't use shaders!
-		if (gGLManager.mHasShaderObjects)
-		{
-			LLGLSLShader::bindNoShader();
-		}		
+		LLGLSLShader::bindNoShader();
 	}
 }
 
@@ -567,11 +555,7 @@ void LLDrawPoolGrass::beginRenderPass(S32 pass)
 	else 
 	{
 		gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
-		// don't use shaders!
-		if (gGLManager.mHasShaderObjects)
-		{
-			LLGLSLShader::bindNoShader();
-		}		
+		LLGLSLShader::bindNoShader();
 	}
 }
 
diff --git a/indra/newview/lldrawpoolsky.cpp b/indra/newview/lldrawpoolsky.cpp
index b6f55e800a..b1eefaab81 100644
--- a/indra/newview/lldrawpoolsky.cpp
+++ b/indra/newview/lldrawpoolsky.cpp
@@ -82,13 +82,7 @@ void LLDrawPoolSky::render(S32 pass)
 	}
 	else
 	{
-		// don't use shaders!
-		if (gGLManager.mHasShaderObjects)
-		{
-			// Ironically, we must support shader objects to be
-			// able to use this call.
-			LLGLSLShader::bindNoShader();
-		}
+		LLGLSLShader::bindNoShader();
 		mShader = NULL;
 	}
 	
diff --git a/indra/newview/llfeaturemanager.cpp b/indra/newview/llfeaturemanager.cpp
index e6bbe234b3..98c8531cd6 100644
--- a/indra/newview/llfeaturemanager.cpp
+++ b/indra/newview/llfeaturemanager.cpp
@@ -670,11 +670,7 @@ void LLFeatureManager::applyBaseMasks()
 	}
 
 	// now all those wacky ones
-	if (!gGLManager.mHasFragmentShader)
-	{
-		maskFeatures("NoPixelShaders");
-	}
-	if (!gGLManager.mHasVertexShader || !mGPUSupported)
+	if (!mGPUSupported)
 	{
 		maskFeatures("NoVertexShaders");
 	}
diff --git a/indra/newview/llglsandbox.cpp b/indra/newview/llglsandbox.cpp
index 698c15bd2d..0f288e05ca 100644
--- a/indra/newview/llglsandbox.cpp
+++ b/indra/newview/llglsandbox.cpp
@@ -993,9 +993,8 @@ private:
 //-----------------------------------------------------------------------------
 F32 gpu_benchmark()
 {
-	if (!gGLManager.mHasShaderObjects || !gGLManager.mHasTimerQuery)
-	{ // don't bother benchmarking the fixed function
-      // or venerable drivers which don't support accurate timing anyway
+	if (!gGLManager.mHasTimerQuery)
+	{ // don't bother benchmarking venerable drivers which don't support accurate timing anyway
       // and are likely to be correctly identified by the GPU table already.
 		return -1.f;
 	}
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index be5c22e7c3..7dcf29eb75 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -384,7 +384,7 @@ void LLViewerShaderMgr::initAttribsAndUniforms(void)
 
 S32 LLViewerShaderMgr::getShaderLevel(S32 type)
 {
-	return LLPipeline::sDisableShaders ? 0 : mShaderLevel[type];
+	return mShaderLevel[type];
 }
 
 //============================================================================
@@ -400,15 +400,6 @@ void LLViewerShaderMgr::setShaders()
         return;
     }
 
-    if (!gGLManager.mHasShaderObjects
-        || !gGLManager.mHasVertexShader
-        || !gGLManager.mHasFragmentShader)
-    {
-        // Viewer will show 'hardware requirements' warning later
-        LL_INFOS("ShaderLoading") << "Shaders not supported" << LL_ENDL;
-        return;
-    }
-
     static LLCachedControl<U32> max_texture_index(gSavedSettings, "RenderMaxTextureIndex", 16);
     LLGLSLShader::sIndexedTextureChannels = llmax(llmin(gGLManager.mNumTextureImageUnits, (S32) max_texture_index), 1);
 
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index d7acf2ec0e..c0b469af81 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -338,7 +338,6 @@ S32		LLPipeline::sUseOcclusion = 0;
 bool	LLPipeline::sDelayVBUpdate = true;
 bool	LLPipeline::sAutoMaskAlphaDeferred = true;
 bool	LLPipeline::sAutoMaskAlphaNonDeferred = false;
-bool	LLPipeline::sDisableShaders = false;
 bool	LLPipeline::sRenderTransparentWater = true;
 bool	LLPipeline::sRenderBump = true;
 bool	LLPipeline::sBakeSunlight = false;
@@ -1393,10 +1392,7 @@ void LLPipeline::restoreGL()
 
 bool LLPipeline::canUseVertexShaders()
 {
-	if (sDisableShaders ||
-		!gGLManager.mHasVertexShader ||
-		!gGLManager.mHasFragmentShader ||
-		(assertInitialized() && mVertexShadersLoaded != 1) )
+	if ((assertInitialized() && mVertexShadersLoaded != 1) )
 	{
 		return false;
 	}
@@ -1408,8 +1404,7 @@ bool LLPipeline::canUseVertexShaders()
 
 bool LLPipeline::canUseWindLightShaders() const
 {
-	return (!LLPipeline::sDisableShaders &&
-			gWLSkyProgram.mProgramObject != 0 &&
+	return (gWLSkyProgram.mProgramObject != 0 &&
 			LLViewerShaderMgr::instance()->getShaderLevel(LLViewerShaderMgr::SHADER_WINDLIGHT) > 1);
 }
 
diff --git a/indra/newview/pipeline.h b/indra/newview/pipeline.h
index 0eaa6b141d..5605d26410 100644
--- a/indra/newview/pipeline.h
+++ b/indra/newview/pipeline.h
@@ -574,7 +574,6 @@ public:
 	static bool				sDelayVBUpdate;
 	static bool				sAutoMaskAlphaDeferred;
 	static bool				sAutoMaskAlphaNonDeferred;
-	static bool				sDisableShaders; // if true, rendering will be done without shaders
 	static bool				sRenderTransparentWater;
 	static bool				sRenderBump;
 	static bool				sBakeSunlight;