1 files changed, 43 insertions, 12 deletions

diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 86b1a8c910..0e29851778 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -317,10 +317,16 @@ S32 LLViewerShaderMgr::getVertexShaderLevel(S32 type)
 
 void LLViewerShaderMgr::setShaders()
 {
-	if (!gPipeline.mInitialized || !sInitialized)
+	//setShaders might be called redundantly by gSavedSettings, so return on reentrance
+	static bool reentrance = false;
+	
+	if (!gPipeline.mInitialized || !sInitialized || reentrance)
 	{
 		return;
 	}
+
+	reentrance = true;
+
 	// Make sure the compiled shader map is cleared before we recompile shaders.
 	mShaderObjects.clear();
 	
@@ -368,17 +374,11 @@ void LLViewerShaderMgr::setShaders()
 		S32 wl_class = 2;
 		S32 water_class = 2;
 		S32 deferred_class = 0;
-		if (!(LLFeatureManager::getInstance()->isFeatureAvailable("WindLightUseAtmosShaders")
-			  && gSavedSettings.getBOOL("WindLightUseAtmosShaders")))
-		{
-			// user has disabled WindLight in their settings, downgrade
-			// windlight shaders to stub versions.
-			wl_class = 1;
-		}
-
-		if (LLPipeline::sRenderDeferred)
+		
+		if (LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferred") &&
+		    gSavedSettings.getBOOL("RenderDeferred"))
 		{
-			if (gSavedSettings.getBOOL("RenderDeferredShadow"))
+			if (gSavedSettings.getS32("RenderShadowDetail") > 0)
 			{
 				if (gSavedSettings.getBOOL("RenderDeferredGI"))
 				{ //shadows + gi
@@ -393,6 +393,24 @@ void LLViewerShaderMgr::setShaders()
 			{ //no shadows
 				deferred_class = 1;
 			}
+
+			//make sure framebuffer objects are enabled
+			gSavedSettings.setBOOL("RenderUseFBO", TRUE);
+
+			//make sure hardware skinning is enabled
+			gSavedSettings.setBOOL("RenderAvatarVP", TRUE);
+			
+			//make sure atmospheric shaders are enabled
+			gSavedSettings.setBOOL("WindLightUseAtmosShaders", TRUE);
+		}
+
+
+		if (!(LLFeatureManager::getInstance()->isFeatureAvailable("WindLightUseAtmosShaders")
+			  && gSavedSettings.getBOOL("WindLightUseAtmosShaders")))
+		{
+			// user has disabled WindLight in their settings, downgrade
+			// windlight shaders to stub versions.
+			wl_class = 1;
 		}
 
 		if(!gSavedSettings.getBOOL("EnableRippleWater"))
@@ -517,6 +535,8 @@ void LLViewerShaderMgr::setShaders()
 		gViewerWindow->setCursor(UI_CURSOR_ARROW);
 	}
 	gPipeline.createGLBuffers();
+
+	reentrance = false;
 }
 
 void LLViewerShaderMgr::unloadShaders()
@@ -973,10 +993,21 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 
 	if (success)
 	{
+		std::string fragment;
+
+		if (gSavedSettings.getBOOL("RenderDeferredSSAO"))
+		{
+			fragment = "deferred/sunLightSSAOF.glsl";
+		}
+		else
+		{
+			fragment = "deferred/sunLightF.glsl";
+		}
+
 		gDeferredSunProgram.mName = "Deferred Sun Shader";
 		gDeferredSunProgram.mShaderFiles.clear();
 		gDeferredSunProgram.mShaderFiles.push_back(make_pair("deferred/sunLightV.glsl", GL_VERTEX_SHADER_ARB));
-		gDeferredSunProgram.mShaderFiles.push_back(make_pair("deferred/sunLightF.glsl", GL_FRAGMENT_SHADER_ARB));
+		gDeferredSunProgram.mShaderFiles.push_back(make_pair(fragment, GL_FRAGMENT_SHADER_ARB));
 		gDeferredSunProgram.mShaderLevel = mVertexShaderLevel[SHADER_DEFERRED];
 		success = gDeferredSunProgram.createShader(NULL, NULL);
 	}