11 files changed, 177 insertions, 87 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
index 7125d845d9..e3c15a2ab2 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl
@@ -14,7 +14,7 @@ uniform sampler2D specularMap;
 void main() 
 {
 	vec4 col = texture2D(diffuseMap, gl_TexCoord[0].xy);
-	gl_FragData[0] = vec4(col.rgb, col.a <= 0.5 ? 0.0 : 0.005);
+	gl_FragData[0] = vec4(col.rgb, col.a * 0.005);
 	gl_FragData[1] = texture2D(specularMap, gl_TexCoord[0].xy);
 	gl_FragData[2] = vec4(texture2D(normalMap, gl_TexCoord[0].xy).xyz, 0.0);
 }
diff --git a/indra/newview/installers/windows/installer_template.nsi b/indra/newview/installers/windows/installer_template.nsi
index 4e8ed807ee..b5d43021ec 100644..100755
--- a/indra/newview/installers/windows/installer_template.nsi
+++ b/indra/newview/installers/windows/installer_template.nsi
@@ -211,6 +211,25 @@ continue_install:
 FunctionEnd
 	
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; Checks for CPU valid (must have SSE2 support)
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+Function CheckCPUFlags
+    Call GetWindowsVersion
+    Pop $R0
+    StrCmp $R0 "2000" OK_SSE  ; sse check not available on win2k.
+
+    Push $1
+    System::Call 'kernel32::IsProcessorFeaturePresent(i) i(10) .r1'
+    IntCmp $1 1 OK_SSE
+    MessageBox MB_OKCANCEL $(MissingSSE2) /SD IDOK IDOK OK_SSE
+    Quit
+
+  OK_SSE:
+    Pop $1
+    Return
+FunctionEnd
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Close the program, if running. Modifies no variables.
 ; Allows user to bail out of install process.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -744,6 +763,7 @@ StrCpy $INSTEXE "${INSTEXE}"
 StrCpy $INSTSHORTCUT "${SHORTCUT}"
 
 Call CheckWindowsVersion		; warn if on Windows 98/ME
+Call CheckCPUFlags			; Make sure we have SSE2 support
 Call CheckIfAdministrator		; Make sure the user can install/uninstall
 Call CheckIfAlreadyCurrent		; Make sure that we haven't already installed this version
 Call CloseSecondLife			; Make sure we're not running
diff --git a/indra/newview/installers/windows/lang_en-us.nsi b/indra/newview/installers/windows/lang_en-us.nsi
index a01541377d..da0d7f54d2 100644..100755
--- a/indra/newview/installers/windows/lang_en-us.nsi
+++ b/indra/newview/installers/windows/lang_en-us.nsi
diff --git a/indra/newview/lldrawpoolalpha.cpp b/indra/newview/lldrawpoolalpha.cpp
index 2519d0297c..7f1740e29f 100644
--- a/indra/newview/lldrawpoolalpha.cpp
+++ b/indra/newview/lldrawpoolalpha.cpp
@@ -103,7 +103,14 @@ void LLDrawPoolAlpha::renderDeferred(S32 pass)
 
 S32 LLDrawPoolAlpha::getNumPostDeferredPasses() 
 { 
-	return 2; 
+	if (LLPipeline::sImpostorRender)
+	{ //skip depth buffer filling pass when rendering impostors
+		return 1;
+	}
+	else
+	{
+		return 2; 
+	}
 }
 
 void LLDrawPoolAlpha::beginPostDeferredPass(S32 pass) 
@@ -137,8 +144,13 @@ void LLDrawPoolAlpha::beginPostDeferredPass(S32 pass)
 
 void LLDrawPoolAlpha::endPostDeferredPass(S32 pass) 
 { 
-	gPipeline.mDeferredDepth.flush();
-	gPipeline.mScreen.bindTarget();
+
+	if (pass == 1)
+	{
+		gPipeline.mDeferredDepth.flush();
+		gPipeline.mScreen.bindTarget();
+	}
+
 	deferred_render = FALSE;
 	endRenderPass(pass);
 }
diff --git a/indra/newview/lldrawpoolavatar.cpp b/indra/newview/lldrawpoolavatar.cpp
index df5b341fdf..ae3421a019 100644
--- a/indra/newview/lldrawpoolavatar.cpp
+++ b/indra/newview/lldrawpoolavatar.cpp
@@ -494,7 +494,7 @@ void LLDrawPoolAvatar::render(S32 pass)
 	LLFastTimer t(FTM_RENDER_CHARACTERS);
 	if (LLPipeline::sImpostorRender)
 	{
-		renderAvatars(NULL, 2);
+		renderAvatars(NULL, pass+2);
 		return;
 	}
 
diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 9562f2d9d2..a90bacf41d 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -1037,26 +1037,25 @@ void LLFloaterPreference::refreshEnabledState()
 	//Deferred/SSAO/Shadows
 	LLCheckBoxCtrl* ctrl_deferred = getChild<LLCheckBoxCtrl>("UseLightShaders");
 	
-	if (LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferred") && 
-		shaders && 
-		gGLManager.mHasFramebufferObject)
-	{
-		BOOL enabled = (ctrl_wind_light->get()) ? TRUE : FALSE;
+	BOOL enabled = LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferred") && 
+						shaders && 
+						gGLManager.mHasFramebufferObject &&
+						gSavedSettings.getBOOL("RenderAvatarVP") &&
+						(ctrl_wind_light->get()) ? TRUE : FALSE;
 
-		ctrl_deferred->setEnabled(enabled);
+	ctrl_deferred->setEnabled(enabled);
 	
-		LLCheckBoxCtrl* ctrl_ssao = getChild<LLCheckBoxCtrl>("UseSSAO");
-		LLComboBox* ctrl_shadow = getChild<LLComboBox>("ShadowDetail");
+	LLCheckBoxCtrl* ctrl_ssao = getChild<LLCheckBoxCtrl>("UseSSAO");
+	LLComboBox* ctrl_shadow = getChild<LLComboBox>("ShadowDetail");
 
-		enabled = enabled && LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferredSSAO") && (ctrl_deferred->get() ? TRUE : FALSE);
+	enabled = enabled && LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferredSSAO") && (ctrl_deferred->get() ? TRUE : FALSE);
 		
-		ctrl_ssao->setEnabled(enabled);
+	ctrl_ssao->setEnabled(enabled);
 
-		enabled = enabled && LLFeatureManager::getInstance()->isFeatureAvailable("RenderShadowDetail");
-
-		ctrl_shadow->setEnabled(enabled);
-	}
+	enabled = enabled && LLFeatureManager::getInstance()->isFeatureAvailable("RenderShadowDetail");
 
+	ctrl_shadow->setEnabled(enabled);
+	
 
 	// now turn off any features that are unavailable
 	disableUnavailableSettings();
diff --git a/indra/newview/llnamelistctrl.cpp b/indra/newview/llnamelistctrl.cpp
index 38100aa6c5..afceb58ccf 100644
--- a/indra/newview/llnamelistctrl.cpp
+++ b/indra/newview/llnamelistctrl.cpp
@@ -143,6 +143,30 @@ void	LLNameListCtrl::mouseOverHighlightNthItem( S32 target_index )
 	S32 cur_index = getHighlightedItemInx();
 	if (cur_index != target_index)
 	{
+		bool is_mouse_over_name_cell = false;
+
+		S32 mouse_x, mouse_y;
+		LLUI::getMousePositionLocal(this, &mouse_x, &mouse_y);
+
+		S32 column_index = getColumnIndexFromOffset(mouse_x);
+		LLScrollListItem* hit_item = hitItem(mouse_x, mouse_y);
+		if (hit_item && column_index == mNameColumnIndex)
+		{
+			// Get the name cell which is currently under the mouse pointer.
+			LLScrollListCell* hit_cell = hit_item->getColumn(column_index);
+			if (hit_cell)
+			{
+				is_mouse_over_name_cell = getCellRect(cur_index, column_index).pointInRect(mouse_x, mouse_y);
+			}
+		}
+
+		// If the tool tip is visible and the mouse is over the currently highlighted item's name cell,
+		// we should not reset the highlighted item index i.e. set mHighlightedItem = -1
+		// and should not increase the width of the text inside the cell because it may
+		// overlap the tool tip icon.
+		if (LLToolTipMgr::getInstance()->toolTipVisible() && is_mouse_over_name_cell)
+			return;
+
 		if(0 <= cur_index && cur_index < (S32)getItemList().size())
 		{
 			LLScrollListItem* item = getItemList()[cur_index];
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index eb022851e7..cfcce3e7bb 100755
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -2082,7 +2082,8 @@ class LLAdvancedEnableRenderDeferredOptions: public view_listener_t
 {
 	bool handleEvent(const LLSD& userdata)
 	{
-		bool new_value = gSavedSettings.getBOOL("RenderDeferred");
+		bool new_value = gGLManager.mHasFramebufferObject && LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_WINDLIGHT > 0) &&
+			LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_AVATAR) > 0 && gSavedSettings.getBOOL("RenderDeferred");
 		return new_value;
 	}
 };
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index a9462c9d50..25cf63a367 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -397,7 +397,9 @@ void LLViewerShaderMgr::setShaders()
 		S32 deferred_class = 0;
 		
 		if (LLFeatureManager::getInstance()->isFeatureAvailable("RenderDeferred") &&
-		    gSavedSettings.getBOOL("RenderDeferred"))
+		    gSavedSettings.getBOOL("RenderDeferred") &&
+			gSavedSettings.getBOOL("RenderAvatarVP") &&
+			gSavedSettings.getBOOL("WindLightUseAtmosShaders"))
 		{
 			if (gSavedSettings.getS32("RenderShadowDetail") > 0)
 			{
@@ -416,10 +418,10 @@ void LLViewerShaderMgr::setShaders()
 			}
 
 			//make sure hardware skinning is enabled
-			gSavedSettings.setBOOL("RenderAvatarVP", TRUE);
+			//gSavedSettings.setBOOL("RenderAvatarVP", TRUE);
 			
 			//make sure atmospheric shaders are enabled
-			gSavedSettings.setBOOL("WindLightUseAtmosShaders", TRUE);
+			//gSavedSettings.setBOOL("WindLightUseAtmosShaders", TRUE);
 		}
 
 
@@ -505,9 +507,14 @@ void LLViewerShaderMgr::setShaders()
 			{ //hardware skinning not possible, neither is deferred rendering
 				mVertexShaderLevel[SHADER_AVATAR] = 0;
 				mVertexShaderLevel[SHADER_DEFERRED] = 0;
-				gSavedSettings.setBOOL("RenderDeferred", FALSE);
-				gSavedSettings.setBOOL("RenderAvatarCloth", FALSE);
-				gSavedSettings.setBOOL("RenderAvatarVP", FALSE);
+
+				if (gSavedSettings.getBOOL("RenderAvatarVP"))
+				{
+					gSavedSettings.setBOOL("RenderDeferred", FALSE);
+					gSavedSettings.setBOOL("RenderAvatarCloth", FALSE);
+					gSavedSettings.setBOOL("RenderAvatarVP", FALSE);
+				}
+
 				loadShadersAvatar(); // unloads
 				loadShadersObject();
 			}
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index 950d050f26..f151cbb173 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -3335,13 +3335,21 @@ BOOL LLVOAvatar::updateCharacter(LLAgent &agent)
 
 	if (visible && !isSelf() && !mIsDummy && sUseImpostors && !mNeedsAnimUpdate && !sFreezeCounter)
 	{
+		const LLVector4a* ext = mDrawable->getSpatialExtents();
+		LLVector4a size;
+		size.setSub(ext[1],ext[0]);
+		F32 mag = size.getLength3().getF32()*0.5f;
+
 		F32 impostor_area = 256.f*512.f*(8.125f - LLVOAvatar::sLODFactor*8.f);
 		if (LLMuteList::getInstance()->isMuted(getID()))
 		{ // muted avatars update at 16 hz
 			mUpdatePeriod = 16;
 		}
-		else if (mVisibilityRank <= LLVOAvatar::sMaxVisible)
+		else if (mVisibilityRank <= LLVOAvatar::sMaxVisible ||
+			mDrawable->mDistanceWRTCamera < 1.f + mag)
 		{ //first 25% of max visible avatars are not impostored
+			//also, don't impostor avatars whose bounding box may be penetrating the 
+			//impostor camera near clip plane
 			mUpdatePeriod = 1;
 		}
 		else if (mVisibilityRank > LLVOAvatar::sMaxVisible * 4)
@@ -4955,7 +4963,7 @@ void LLVOAvatar::resetSpecificJointPosition( const std::string& name )
 {
 	LLJoint* pJoint = mRoot.findJoint( name );
 	
-	if ( pJoint )
+	if ( pJoint  && pJoint->doesJointNeedToBeReset() )
 	{
 		pJoint->restoreOldXform();
 		pJoint->setId( LLUUID::null );
@@ -4993,11 +5001,15 @@ void LLVOAvatar::resetJointPositionsToDefault( void )
 	for( S32 i = 0; i < (S32)mNumJoints; ++i )
 	{
 		LLJoint* pJoint = (LLJoint*)&mSkeleton[i];
-		pJoint->setId( LLUUID::null );
-		//restore joints to default positions, however skip over the pelvis
-		if ( pJoint && pPelvis != pJoint )
+		if ( pJoint->doesJointNeedToBeReset() )
 		{
-			pJoint->restoreOldXform();
+
+			pJoint->setId( LLUUID::null );
+			//restore joints to default positions, however skip over the pelvis
+			if ( pJoint && pPelvis != pJoint )
+			{
+				pJoint->restoreOldXform();
+			}
 		}
 	}
 	//make sure we don't apply the joint offset
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 69173d26f4..9d7af4aace 100755
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -104,6 +104,26 @@
 #include "llcurl.h"
 
 
+void check_stack_depth(S32 stack_depth)
+{
+	if (gDebugGL || gDebugSession)
+	{
+		GLint depth;
+		glGetIntegerv(GL_MODELVIEW_STACK_DEPTH, &depth);
+		if (depth != stack_depth)
+		{
+			if (gDebugSession)
+			{
+				ll_fail("GL matrix stack corrupted.");
+			}
+			else
+			{
+				llerrs << "GL matrix stack corrupted!" << llendl;
+			}
+		}
+	}
+}
+	
 #ifdef _DEBUG
 // Debug indices is disabled for now for debug performance - djs 4/24/02
 //#define DEBUG_INDICES
@@ -3354,6 +3374,13 @@ void LLPipeline::renderGeom(LLCamera& camera, BOOL forceVBOUpdate)
 		}
 	}
 
+	S32 stack_depth = 0;
+
+	if (gDebugGL)
+	{
+		glGetIntegerv(GL_MODELVIEW_STACK_DEPTH, &stack_depth);
+	}
+
 	///////////////////////////////////////////
 	//
 	// Sync and verify GL state
@@ -3478,18 +3505,9 @@ void LLPipeline::renderGeom(LLCamera& camera, BOOL forceVBOUpdate)
 					}
 					poolp->endRenderPass(i);
 					LLVertexBuffer::unbind();
-					if (gDebugGL || gDebugPipeline)
+					if (gDebugGL)
 					{
-						GLint depth;
-						glGetIntegerv(GL_MODELVIEW_STACK_DEPTH, &depth);
-						if (depth > 3)
-						{
-							if (gDebugSession)
-							{
-								ll_fail("GL matrix stack corrupted.");
-							}
-							llerrs << "GL matrix stack corrupted!" << llendl;
-						}
+						check_stack_depth(stack_depth);
 						std::string msg = llformat("%s pass %d", gPoolNames[cur_type].c_str(), i);
 						LLGLState::checkStates(msg);
 						LLGLState::checkTextureChannels(msg);
@@ -3512,11 +3530,11 @@ void LLPipeline::renderGeom(LLCamera& camera, BOOL forceVBOUpdate)
 			iter1 = iter2;
 			stop_glerror();
 		}
-	
-	LLAppViewer::instance()->pingMainloopTimeout("Pipeline:RenderDrawPoolsEnd");
-
-	LLVertexBuffer::unbind();
 		
+		LLAppViewer::instance()->pingMainloopTimeout("Pipeline:RenderDrawPoolsEnd");
+
+		LLVertexBuffer::unbind();
+			
 		gGLLastMatrix = NULL;
 		glLoadMatrixd(gGLModelView);
 
@@ -3563,9 +3581,9 @@ void LLPipeline::renderGeom(LLCamera& camera, BOOL forceVBOUpdate)
 	{
 		if (gPipeline.hasRenderDebugFeatureMask(LLPipeline::RENDER_DEBUG_FEATURE_UI))
 		{
-		      // Render debugging beacons.
-		      gObjectList.renderObjectBeacons();
-		      gObjectList.resetObjectBeacons();
+			// Render debugging beacons.
+			gObjectList.renderObjectBeacons();
+			gObjectList.resetObjectBeacons();
 		}
 		else
 		{
@@ -4269,9 +4287,10 @@ void LLPipeline::renderDebug()
 				gGL.popMatrix();
 			}
 		}
+
+		gGL.popMatrix();
 	}
 
-	gGL.popMatrix();
 	gGL.flush();
 
 	gPipeline.renderPhysicsDisplay();
@@ -7779,7 +7798,9 @@ void LLPipeline::generateWaterReflection(LLCamera& camera_in)
 						LLPipeline::RENDER_TYPE_WL_SKY,
 						LLPipeline::END_RENDER_TYPES);
 
+					//bad pop here 
 					renderGeom(camera, TRUE);
+
 					gPipeline.popRenderTypeMask();
 				}
 
@@ -9352,10 +9373,10 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 
 	glMatrixMode(GL_PROJECTION);
 	glPushMatrix();
-	//glh::matrix4f ortho = gl_ortho(-tdim.mV[0], tdim.mV[0], -tdim.mV[1], tdim.mV[1], 1.0, 256.0);
+	
 	F32 distance = (pos-camera.getOrigin()).length();
 	F32 fov = atanf(tdim.mV[1]/distance)*2.f*RAD_TO_DEG;
-	F32 aspect = tdim.mV[0]/tdim.mV[1]; //128.f/256.f;
+	F32 aspect = tdim.mV[0]/tdim.mV[1];
 	glh::matrix4f persp = gl_perspective(fov, aspect, 1.f, 256.f);
 	glh_set_current_projection(persp);
 	glLoadMatrixf(persp.m);
@@ -9372,9 +9393,7 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 
 	glClearColor(0.0f,0.0f,0.0f,0.0f);
 	gGL.setColorMask(true, true);
-	glStencilMask(0xFFFFFFFF);
-	glClearStencil(0);
-
+	
 	// get the number of pixels per angle
 	F32 pa = gViewerWindow->getWindowHeightRaw() / (RAD_TO_DEG * viewer_camera->getView());
 
@@ -9385,7 +9404,7 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 	if (!avatar->mImpostor.isComplete() || resX != avatar->mImpostor.getWidth() ||
 		resY != avatar->mImpostor.getHeight())
 	{
-		avatar->mImpostor.allocate(resX,resY,GL_RGBA,TRUE,TRUE);
+		avatar->mImpostor.allocate(resX,resY,GL_RGBA,TRUE,FALSE);
 		
 		if (LLPipeline::sRenderDeferred)
 		{
@@ -9397,43 +9416,30 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 	}
 
-	LLGLEnable stencil(GL_STENCIL_TEST);
-	glStencilMask(0xFFFFFFFF);
-	glStencilFunc(GL_ALWAYS, 1, 0xFFFFFFFF);
-	glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+	avatar->mImpostor.bindTarget();
 
-	{
-		LLGLEnable scissor(GL_SCISSOR_TEST);
-		glScissor(0, 0, resX, resY);
-		avatar->mImpostor.bindTarget();
-		avatar->mImpostor.clear();
-	}
-	
 	if (LLPipeline::sRenderDeferred)
 	{
-		stop_glerror();
+		avatar->mImpostor.clear();
 		renderGeomDeferred(camera);
 		renderGeomPostDeferred(camera);
 	}
 	else
 	{
+		LLGLEnable scissor(GL_SCISSOR_TEST);
+		glScissor(0, 0, resX, resY);
+		avatar->mImpostor.clear();
 		renderGeom(camera);
 	}
 	
-	glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-	glStencilFunc(GL_EQUAL, 1, 0xFFFFFF);
-
-	{ //create alpha mask based on stencil buffer (grey out if muted)
-		LLVector3 left = camera.getLeftAxis()*tdim.mV[0]*2.f;
-		LLVector3 up = camera.getUpAxis()*tdim.mV[1]*2.f;
-
+	{ //create alpha mask based on depth buffer (grey out if muted)
 		if (LLPipeline::sRenderDeferred)
 		{
-			GLuint buff = GL_COLOR_ATTACHMENT0_EXT;
+			GLuint buff = GL_COLOR_ATTACHMENT0;
 			glDrawBuffersARB(1, &buff);
 		}
 
-		LLGLEnable blend(muted ? 0 : GL_BLEND);
+		LLGLDisable blend(GL_BLEND);
 
 		if (muted)
 		{
@@ -9444,25 +9450,34 @@ void LLPipeline::generateImpostor(LLVOAvatar* avatar)
 			gGL.setColorMask(false, true);
 		}
 		
-		gGL.setSceneBlendType(LLRender::BT_ADD);
 		gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
 
-		LLGLDepthTest depth(GL_FALSE, GL_FALSE);
+		LLGLDepthTest depth(GL_TRUE, GL_FALSE, GL_GREATER);
+
+		gGL.flush();
+
+		glPushMatrix();
+		glLoadIdentity();
+		glMatrixMode(GL_PROJECTION);
+		glPushMatrix();
+		glLoadIdentity();
+
+		static const F32 clip_plane = 0.99999f;
 
-		gGL.color4f(1,1,1,1);
 		gGL.color4ub(64,64,64,255);
 		gGL.begin(LLRender::QUADS);
-		gGL.vertex3fv((pos+left-up).mV);
-		gGL.vertex3fv((pos-left-up).mV);
-		gGL.vertex3fv((pos-left+up).mV);
-		gGL.vertex3fv((pos+left+up).mV);
+		gGL.vertex3f(-1, -1, clip_plane);
+		gGL.vertex3f(1, -1, clip_plane);
+		gGL.vertex3f(1, 1, clip_plane);
+		gGL.vertex3f(-1, 1, clip_plane);
 		gGL.end();
 		gGL.flush();
 
-		gGL.setSceneBlendType(LLRender::BT_ALPHA);
+		glPopMatrix();
+		glMatrixMode(GL_MODELVIEW);
+		glPopMatrix();
 	}
 
-
 	avatar->mImpostor.flush();
 
 	avatar->setImpostorDim(tdim);