MAINT-6645 - Improvement - Agents that render as jelly dolls should have their attachments render at 0 LoD to prevent loading higher LoD complexity in memory thus deterring crashes.

Comments:
- Fix based on "RenderAutoMuteByteLimit" setting.
- File indra/llxml/llcontrol.h - add all signals to 0 group.
  It garanty that handlers (in indra/newview/llviewercontrol.cpp) will be called last.

12 files changed, 352 insertions, 23 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 63fa93df02..7c3867bdfb 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -10169,9 +10169,9 @@
   <key>RenderAutoMuteByteLimit</key>
   <map>
     <key>Comment</key>
-    <string>OBSOLETE and UNUSED.</string>
+    <string>If avatar attachment size exceed this value (in bytes) attachment will not be rendered. Excludes attachments worn by own avatar.</string>
     <key>Persist</key>
-    <integer>0</integer>
+    <integer>1</integer>
     <key>Type</key>
     <string>U32</string>
     <key>Value</key>
diff --git a/indra/newview/lldrawable.cpp b/indra/newview/lldrawable.cpp
index 3bb2c45a24..aa67ea2524 100644
--- a/indra/newview/lldrawable.cpp
+++ b/indra/newview/lldrawable.cpp
@@ -50,6 +50,7 @@
 #include "llviewerobjectlist.h"
 #include "llviewerwindow.h"
 #include "llvocache.h"
+#include "lldrawpoolavatar.h"
 
 const F32 MIN_INTERPOLATE_DISTANCE_SQUARED = 0.001f * 0.001f;
 const F32 MAX_INTERPOLATE_DISTANCE_SQUARED = 10.f * 10.f;
@@ -143,6 +144,28 @@ void LLDrawable::init(bool new_entry)
 	initVisible(sCurVisible - 2);//invisible for the current frame and the last frame.
 }
 
+void LLDrawable::unload()
+{
+	LLVOVolume *pVVol = getVOVolume();
+	pVVol->setNoLOD();
+
+	for (S32 i = 0; i < getNumFaces(); i++)
+	{
+		LLFace* facep = getFace(i);
+		if (facep->isState(LLFace::RIGGED))
+		{
+			LLDrawPoolAvatar* pool = (LLDrawPoolAvatar*)facep->getPool();
+			if (pool) {
+				pool->removeRiggedFace(facep);
+			}
+			facep->setVertexBuffer(NULL);
+		}
+		facep->clearState(LLFace::RIGGED);
+	}
+
+	pVVol->markForUpdate(TRUE);
+}
+
 // static
 void LLDrawable::initClass()
 {
diff --git a/indra/newview/lldrawable.h b/indra/newview/lldrawable.h
index a3461d4c01..14d782d6f2 100644
--- a/indra/newview/lldrawable.h
+++ b/indra/newview/lldrawable.h
@@ -84,6 +84,7 @@ public:
 	void markDead();			// Mark this drawable as dead
 	BOOL isDead() const			{ return isState(DEAD); }
 	BOOL isNew() const			{ return !isState(BUILT); }
+	BOOL isUnload() const		{ return isState(FOR_UNLOAD); }
 
 	BOOL isLight() const;
 
@@ -141,6 +142,7 @@ public:
 	void				mergeFaces(LLDrawable* src);
 
 	void init(bool new_entry);
+	void unload();
 	void destroy();
 
 	void update();
@@ -282,6 +284,7 @@ public:
 		PARTITION_MOVE	= 0x10000000,
 		ANIMATED_CHILD  = 0x20000000,
 		ACTIVE_CHILD	= 0x40000000,
+		FOR_UNLOAD		= 0x80000000, //should be unload from memory
 	} EDrawableFlags;
 
 public:
diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp
index 50a4925c37..51bb2e3087 100644
--- a/indra/newview/llface.cpp
+++ b/indra/newview/llface.cpp
@@ -2650,12 +2650,27 @@ LLViewerTexture* LLFace::getTexture(U32 ch) const
 
 void LLFace::setVertexBuffer(LLVertexBuffer* buffer)
 {
+	if (buffer)
+	{
+		LLSculptIDSize::instance().inc(mDrawablep, buffer->getSize() + buffer->getIndicesSize());
+	}
+
+	if (mVertexBuffer)
+	{
+		LLSculptIDSize::instance().dec(mDrawablep);
+	}
+
 	mVertexBuffer = buffer;
 	llassert(verify());
 }
 
 void LLFace::clearVertexBuffer()
 {
+	if (mVertexBuffer)
+	{
+		LLSculptIDSize::instance().dec(mDrawablep);
+	}
+
 	mVertexBuffer = NULL;
 }
 
diff --git a/indra/newview/llmeshrepository.cpp b/indra/newview/llmeshrepository.cpp
index df708013fc..9edffea1c1 100644
--- a/indra/newview/llmeshrepository.cpp
+++ b/indra/newview/llmeshrepository.cpp
@@ -3945,7 +3945,7 @@ void LLMeshRepository::uploadModel(std::vector<LLModelInstance>& data, LLVector3
 
 S32 LLMeshRepository::getMeshSize(const LLUUID& mesh_id, S32 lod)
 {
-	if (mThread && mesh_id.notNull())
+	if (mThread && mesh_id.notNull() && LLPrimitive::NO_LOD != lod)
 	{
 		LLMutexLock lock(mThread->mHeaderMutex);
 		LLMeshRepoThread::mesh_header_map::iterator iter = mThread->mMeshHeader.find(mesh_id);
diff --git a/indra/newview/llspatialpartition.h b/indra/newview/llspatialpartition.h
index 7633e46200..f7bcce6daf 100644
--- a/indra/newview/llspatialpartition.h
+++ b/indra/newview/llspatialpartition.h
@@ -646,7 +646,7 @@ class LLVolumeGeometryManager: public LLGeometryManager
 	virtual void rebuildGeom(LLSpatialGroup* group);
 	virtual void rebuildMesh(LLSpatialGroup* group);
 	virtual void getGeometry(LLSpatialGroup* group);
-	void genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace** faces, U32 face_count, BOOL distance_sort = FALSE, BOOL batch_textures = FALSE, BOOL no_materials = FALSE);
+	U32 genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace** faces, U32 face_count, BOOL distance_sort = FALSE, BOOL batch_textures = FALSE, BOOL no_materials = FALSE);
 	void registerFace(LLSpatialGroup* group, LLFace* facep, U32 type);
 
 private:
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index d9d66ef254..3280aa718d 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -582,6 +582,7 @@ bool toggle_show_object_render_cost(const LLSD& newvalue)
 	return true;
 }
 
+void handleRenderAutoMuteByteLimitChanged(const LLSD& new_value);
 ////////////////////////////////////////////////////////////////////////////
 
 void settings_setup_listeners()
@@ -734,7 +735,8 @@ void settings_setup_listeners()
 	gSavedSettings.getControl("SpellCheck")->getSignal()->connect(boost::bind(&handleSpellCheckChanged));
 	gSavedSettings.getControl("SpellCheckDictionary")->getSignal()->connect(boost::bind(&handleSpellCheckChanged));
 	gSavedSettings.getControl("LoginLocation")->getSignal()->connect(boost::bind(&handleLoginLocationChanged));
-    gSavedSettings.getControl("DebugAvatarJoints")->getCommitSignal()->connect(boost::bind(&handleDebugAvatarJointsChanged, _2));
+	gSavedSettings.getControl("DebugAvatarJoints")->getCommitSignal()->connect(boost::bind(&handleDebugAvatarJointsChanged, _2));
+	gSavedSettings.getControl("RenderAutoMuteByteLimit")->getSignal()->connect(boost::bind(&handleRenderAutoMuteByteLimitChanged, _2));
 }
 
 #if TEST_CACHED_CONTROL
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index 6c2d4d7fea..293df89bf0 100644
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -5868,6 +5868,14 @@ void LLViewerObject::markForUpdate(BOOL priority)
 	}
 }
 
+void LLViewerObject::markForUnload(BOOL priority)
+{
+	if (mDrawable.notNull())
+	{
+		gPipeline.markRebuild(mDrawable, LLDrawable::FOR_UNLOAD, priority);
+	}
+}
+
 bool LLViewerObject::isPermanentEnforced() const
 {
 	return flagObjectPermanent() && (mRegionp != gAgent.getRegion()) && !gAgent.isGodlike();
diff --git a/indra/newview/llviewerobject.h b/indra/newview/llviewerobject.h
index 7a490f6957..e4224a79d1 100644
--- a/indra/newview/llviewerobject.h
+++ b/indra/newview/llviewerobject.h
@@ -412,6 +412,7 @@ public:
 	void clearIcon();
 
 	void markForUpdate(BOOL priority);
+	void markForUnload(BOOL priority);
 	void updateVolume(const LLVolumeParams& volume_params);
 	virtual	void updateSpatialExtents(LLVector4a& min, LLVector4a& max);
 	virtual F32 getBinRadius();
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 9c77a76683..5292eb7067 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -249,6 +249,8 @@ void LLVOVolume::markDead()
 {
 	if (!mDead)
 	{
+		LLSculptIDSize::instance().rem(getVolume()->getParams().getSculptID());
+
 		if(getMDCImplCount() > 0)
 		{
 			LLMediaDataClientObject::ptr_t obj = new LLMediaDataClientObjectImpl(const_cast<LLVOVolume*>(this), false);
@@ -951,13 +953,14 @@ BOOL LLVOVolume::setVolume(const LLVolumeParams &params_in, const S32 detail, bo
 		// if it's a mesh
 		if ((volume_params.getSculptType() & LL_SCULPT_TYPE_MASK) == LL_SCULPT_TYPE_MESH)
 		{ //meshes might not have all LODs, get the force detail to best existing LOD
-			LLUUID mesh_id = volume_params.getSculptID();
-
-			lod = gMeshRepo.getActualMeshLOD(volume_params, lod);
-			if (lod == -1)
+			if (NO_LOD != lod)
 			{
-				is404 = TRUE;
-				lod = 0;
+				lod = gMeshRepo.getActualMeshLOD(volume_params, lod);
+				if (lod == -1)
+				{
+					is404 = TRUE;
+					lod = 0;
+				}
 			}
 		}
 	}
@@ -4652,10 +4655,79 @@ static LLDrawPoolAvatar* get_avatar_drawpool(LLViewerObject* vobj)
 	return NULL;
 }
 
-void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
+void handleRenderAutoMuteByteLimitChanged(const LLSD& new_value)
 {
-	
+	static LLCachedControl<U32> render_auto_mute_byte_limit(gSavedSettings, "RenderAutoMuteByteLimit", 0U);
+
+	if (0 != render_auto_mute_byte_limit)
+	{
+		//for unload
+		LLSculptIDSize::container_BY_SIZE_view::iterator
+			itL = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().lower_bound(render_auto_mute_byte_limit),
+			itU = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().end();
+
+		for (; itL != itU; ++itL)
+		{
+			const LLSculptIDSize::Info &nfo = *itL;
+			LLVOVolume *pVVol = nfo.getPtrLLDrawable()->getVOVolume();
+			if (pVVol
+				&& !pVVol->isDead()
+				&& pVVol->isAttachment()
+				&& !pVVol->getAvatar()->isSelf()
+				&& LLVOVolume::NO_LOD != pVVol->getLOD()
+				)
+			{
+				//postponed
+				pVVol->markForUnload();
+			}
+		}
+
+		//for load if it was unload
+		itL = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().begin();
+		itU = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().upper_bound(render_auto_mute_byte_limit);
+
+		for (; itL != itU; ++itL)
+		{
+			const LLSculptIDSize::Info &nfo = *itL;
+			LLVOVolume *pVVol = nfo.getPtrLLDrawable()->getVOVolume();
+			if (pVVol
+				&& !pVVol->isDead()
+				&& pVVol->isAttachment()
+				&& !pVVol->getAvatar()->isSelf()
+				&& LLVOVolume::NO_LOD == pVVol->getLOD()
+				)
+			{
+				pVVol->updateLOD();
+				pVVol->markForUpdate(TRUE);
+			}
+		}
+	}
+	else
+	{
+		LLSculptIDSize::container_BY_SIZE_view::iterator
+			itL = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().begin(),
+			itU = LLSculptIDSize::instance().getSizeInfo().get<LLSculptIDSize::tag_BY_SIZE>().end();
+
+		for (; itL != itU; ++itL)
+		{
+			const LLSculptIDSize::Info &nfo = *itL;
+			LLVOVolume *pVVol = nfo.getPtrLLDrawable()->getVOVolume();
+			if (pVVol
+				&& !pVVol->isDead()
+				&& pVVol->isAttachment()
+				&& !pVVol->getAvatar()->isSelf()
+				&& LLVOVolume::NO_LOD == pVVol->getLOD()
+				) 
+			{
+				pVVol->updateLOD();
+				pVVol->markForUpdate(TRUE);
+			}
+		}
+	}
+}
 
+void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
+{
 	if (group->changeLOD())
 	{
 		group->mLastUpdateDistance = group->mDistance;
@@ -5216,13 +5288,19 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
 		fullbright_mask = fullbright_mask | LLVertexBuffer::MAP_TEXTURE_INDEX;
 	}
 
-	genDrawInfo(group, simple_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sSimpleFaces, simple_count, FALSE, batch_textures, FALSE);
-	genDrawInfo(group, fullbright_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sFullbrightFaces, fullbright_count, FALSE, batch_textures);
-	genDrawInfo(group, alpha_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sAlphaFaces, alpha_count, TRUE, batch_textures);
-	genDrawInfo(group, bump_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sBumpFaces, bump_count, FALSE, FALSE);
-	genDrawInfo(group, norm_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sNormFaces, norm_count, FALSE, FALSE);
-	genDrawInfo(group, spec_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sSpecFaces, spec_count, FALSE, FALSE);
-	genDrawInfo(group, normspec_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sNormSpecFaces, normspec_count, FALSE, FALSE);
+	group->mGeometryBytes = 0;
+
+	U32 geometryBytes = 0;
+
+	geometryBytes += genDrawInfo(group, simple_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sSimpleFaces, simple_count, FALSE, batch_textures, FALSE);
+	geometryBytes += genDrawInfo(group, fullbright_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sFullbrightFaces, fullbright_count, FALSE, batch_textures);
+	geometryBytes += genDrawInfo(group, alpha_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sAlphaFaces, alpha_count, TRUE, batch_textures);
+	geometryBytes += genDrawInfo(group, bump_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sBumpFaces, bump_count, FALSE, FALSE);
+	geometryBytes += genDrawInfo(group, norm_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sNormFaces, norm_count, FALSE, FALSE);
+	geometryBytes += genDrawInfo(group, spec_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sSpecFaces, spec_count, FALSE, FALSE);
+	geometryBytes += genDrawInfo(group, normspec_mask | LLVertexBuffer::MAP_TEXTURE_INDEX, sNormSpecFaces, normspec_count, FALSE, FALSE);
+
+	group->mGeometryBytes = geometryBytes;
 
 	if (!LLPipeline::sDelayVBUpdate)
 	{
@@ -5412,10 +5490,11 @@ static LLTrace::BlockTimerStatHandle FTM_GEN_DRAW_INFO_RESIZE_VB("Resize VB");
 
 
 
-void LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace** faces, U32 face_count, BOOL distance_sort, BOOL batch_textures, BOOL no_materials)
+U32 LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFace** faces, U32 face_count, BOOL distance_sort, BOOL batch_textures, BOOL no_materials)
 {
 	LL_RECORD_BLOCK_TIME(FTM_REBUILD_VOLUME_GEN_DRAW_INFO);
 
+	U32 geometryBytes = 0;
 	U32 buffer_usage = group->mBufferUsage;
 	
 	static LLCachedControl<bool> use_transform_feedback(gSavedSettings, "RenderUseTransformFeedback", false);
@@ -5665,7 +5744,7 @@ void LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFac
 
 		if (buffer)
 		{
-			group->mGeometryBytes += buffer->getSize() + buffer->getIndicesSize();
+			geometryBytes += buffer->getSize() + buffer->getIndicesSize();
 			buffer_map[mask][*face_iter].push_back(buffer);
 		}
 
@@ -6021,6 +6100,8 @@ void LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, LLFac
 	{
 		group->mBufferMap[mask][i->first] = i->second;
 	}
+
+	return geometryBytes;
 }
 
 void LLGeometryManager::addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32 &index_count)
@@ -6088,3 +6169,103 @@ void LLHUDPartition::shift(const LLVector4a &offset)
 	//HUD objects don't shift with region crossing.  That would be silly.
 }
 
+
+//...........
+
+void _nothing_to_do_func(int) { /*nothing todo here because of the size it's a shared member*/  }
+
+void LLSculptIDSize::inc(const LLDrawable *pdrawable, int sz)
+{
+	llassert(sz >= 0);
+
+	if (!pdrawable) return;
+	LLVOVolume* vvol = pdrawable->getVOVolume();
+	if (!vvol) return;
+	if (!vvol->isAttachment()) return;
+	if (!vvol->getAvatar()) return;
+	if (vvol->getAvatar()->isSelf()) return;
+	LLVolume *vol = vvol->getVolume();
+	if (!vol) return;
+
+	const LLUUID &sculptId = vol->getParams().getSculptID();
+
+	unsigned int total_size = 0;
+
+	typedef std::pair<container_BY_SCULPT_ID_view::iterator, container_BY_SCULPT_ID_view::iterator> pair_iter_iter_t;
+
+	pair_iter_iter_t itLU = m_size_info.get<tag_BY_SCULPT_ID>().equal_range(sculptId);
+	if (itLU.first == itLU.second)
+	{ //register
+		llassert(m_size_info.get<tag_BY_DRAWABLE>().end() == m_size_info.get<tag_BY_DRAWABLE>().find(pdrawable));
+		m_size_info.get<tag_BY_DRAWABLE>().insert(Info( pdrawable, sz, boost::make_shared<SizeInfo>(sz), sculptId ));
+		total_size = sz;
+	}
+	else
+	{ //update + register
+		Info &nfo = const_cast<Info &>(*itLU.first);
+		//calc new size
+		total_size = nfo.getTotalSize() + sz;
+		nfo.m_p_size_info->m_size = total_size;
+		nfo.m_size = sz;
+		//update size for all LLDrwable in range of sculptId
+		for (pair_iter_iter_t::first_type it = itLU.first; it != itLU.second; ++it)
+		{
+			m_size_info.get<tag_BY_SIZE>().modify_key(m_size_info.project<tag_BY_SIZE>(it), boost::bind(&_nothing_to_do_func, _1));
+		}
+
+		//trying insert the LLDrawable
+		m_size_info.get<tag_BY_DRAWABLE>().insert(Info(pdrawable, sz, nfo.m_p_size_info, sculptId));
+	}
+
+	static LLCachedControl<U32> render_auto_mute_byte_limit(gSavedSettings, "RenderAutoMuteByteLimit", 0U);
+
+	if (0 != render_auto_mute_byte_limit && total_size > render_auto_mute_byte_limit)
+	{
+		pair_iter_iter_t it_eqr = m_size_info.get<tag_BY_SCULPT_ID>().equal_range(sculptId);
+		for (; it_eqr.first != it_eqr.second; ++it_eqr.first)
+		{
+			const Info &i = *it_eqr.first;
+			LLVOVolume *pVVol = i.m_p_drawable->getVOVolume();
+			if (pVVol
+				&& !pVVol->isDead()
+				&& pVVol->isAttachment()
+				&& !pVVol->getAvatar()->isSelf()
+				&& LLVOVolume::NO_LOD != pVVol->getLOD()
+				)
+			{
+				//immediately
+				const_cast<LLDrawable*>(i.m_p_drawable)->unload();
+			}
+		}
+	}
+}
+
+void LLSculptIDSize::dec(const LLDrawable *pdrawable)
+{
+	container_BY_DRAWABLE_view::iterator it = m_size_info.get<tag_BY_DRAWABLE>().find(pdrawable);
+	if (m_size_info.get<tag_BY_DRAWABLE>().end() == it) return;
+
+	unsigned int size = it->getTotalSize() - it->getSize();
+
+	if (0 == size)
+	{
+		m_size_info.get<tag_BY_SCULPT_ID>().erase(it->getSculptId());
+	}
+	else
+	{
+		Info &nfo = const_cast<Info &>(*it);
+		nfo.m_size = 0;
+		typedef std::pair<container_BY_SCULPT_ID_view::iterator, container_BY_SCULPT_ID_view::iterator> pair_iter_iter_t;
+		pair_iter_iter_t itLU = m_size_info.get<tag_BY_SCULPT_ID>().equal_range(it->getSculptId());
+		it->m_p_size_info->m_size = size;
+		for (pair_iter_iter_t::first_type it = itLU.first; it != itLU.second; ++it)
+		{
+			m_size_info.get<tag_BY_SIZE>().modify_key(m_size_info.project<tag_BY_SIZE>(it), boost::bind(&_nothing_to_do_func, _1));
+		}
+	}
+}
+
+void LLSculptIDSize::rem(LLUUID sculptId)
+{
+	m_size_info.get<tag_BY_SCULPT_ID>().erase(sculptId);
+}
diff --git a/indra/newview/llvovolume.h b/indra/newview/llvovolume.h
index 3b68d61ee9..3ae9ac5325 100644
--- a/indra/newview/llvovolume.h
+++ b/indra/newview/llvovolume.h
@@ -35,6 +35,12 @@
 #include "m3math.h"		// LLMatrix3
 #include "m4math.h"		// LLMatrix4
 #include <map>
+#include <set>
+//boost
+#include "boost/multi_index_container.hpp"
+#include "boost/multi_index/ordered_index.hpp"
+#include "boost/multi_index/mem_fun.hpp"
+
 
 class LLViewerTextureAnim;
 class LLDrawPool;
@@ -125,7 +131,8 @@ public:
 
 				void	generateSilhouette(LLSelectNode* nodep, const LLVector3& view_point);
 	/*virtual*/	BOOL	setParent(LLViewerObject* parent);
-				S32		getLOD() const							{ return mLOD; }
+				S32		getLOD() const						{ return mLOD; }
+				void	setNoLOD()							{ mLOD = NO_LOD; mLODChanged = TRUE; }
 	const LLVector3		getPivotPositionAgent() const;
 	const LLMatrix4&	getRelativeXform() const				{ return mRelativeXform; }
 	const LLMatrix3&	getRelativeXformInvTrans() const		{ return mRelativeXformInvTrans; }
@@ -160,6 +167,7 @@ public:
 				const LLMatrix4& getWorldMatrix(LLXformMatrix* xform) const;
 
 				void	markForUpdate(BOOL priority)			{ LLViewerObject::markForUpdate(priority); mVolumeChanged = TRUE; }
+				void	markForUnload()							{ LLViewerObject::markForUnload(TRUE); mVolumeChanged = TRUE; }
 				void    faceMappingChanged()                    { mFaceMappingChanged=TRUE; };
 
 	/*virtual*/ void	onShift(const LLVector4a &shift_vector); // Called when the drawable shifts
@@ -410,5 +418,87 @@ private:
 
 };
 
+//...........
+
+class LLSculptIDSize
+{
+public:
+	struct SizeInfo
+	{
+		SizeInfo(int size) : m_size(size) {}
+		unsigned int m_size;
+	};
+
+	struct Info
+	{
+		typedef boost::shared_ptr<SizeInfo> PtrSizeInfo;
+
+		Info(const LLDrawable *pdrawable, int size, PtrSizeInfo psize_info, LLUUID sculpt_id)
+			: m_p_drawable(pdrawable)
+			, m_size(size)
+			, m_p_size_info(psize_info)
+			, m_sculpt_id(sculpt_id)
+		{}
+
+		const LLDrawable *m_p_drawable;
+		unsigned int m_size;
+		PtrSizeInfo	m_p_size_info;
+		LLUUID m_sculpt_id;
+
+		inline const LLDrawable*	getPtrLLDrawable() const { return m_p_drawable; }
+		inline unsigned int			getSize() const { return m_size; }
+		inline unsigned int			getTotalSize() const { return m_p_size_info->m_size; }
+		inline LLUUID				getSculptId() const { return m_sculpt_id; }
+		PtrSizeInfo					getSizeInfo() { return m_p_size_info; }
+	};
+
+public:
+	//tags
+	struct tag_BY_DRAWABLE {};
+	struct tag_BY_SCULPT_ID {};
+	struct tag_BY_SIZE {};
+
+	//container
+	typedef boost::multi_index_container <
+		Info,
+		boost::multi_index::indexed_by <
+			boost::multi_index::ordered_unique< boost::multi_index::tag<tag_BY_DRAWABLE>
+				, boost::multi_index::const_mem_fun<Info, const LLDrawable*, &Info::getPtrLLDrawable>
+			>
+			, boost::multi_index::ordered_non_unique<boost::multi_index::tag<tag_BY_SCULPT_ID>
+				, boost::multi_index::const_mem_fun<Info, LLUUID, &Info::getSculptId>
+			>
+			, boost::multi_index::ordered_non_unique<boost::multi_index::tag<tag_BY_SIZE>
+				, boost::multi_index::const_mem_fun<Info, unsigned int, &Info::getTotalSize>
+			>
+		>
+	> container;
+
+	//views
+	typedef container::template index<tag_BY_DRAWABLE>::type			container_BY_DRAWABLE_view;
+	typedef container::template index<tag_BY_SCULPT_ID>::type			container_BY_SCULPT_ID_view;
+	typedef container::template index<tag_BY_SIZE>::type				container_BY_SIZE_view;
+
+private:
+	LLSculptIDSize()
+	{}
+
+public:
+	static LLSculptIDSize & instance() {
+		static LLSculptIDSize inst;
+		return inst;
+	}
+
+public:
+	void inc(const LLDrawable *pdrawable, int sz);
+	void dec(const LLDrawable *pdrawable);
+	void rem(LLUUID sculptId);
+
+	const container & getSizeInfo() const { return m_size_info; }
+
+private:
+	container m_size_info;
+};
+
 #endif // LL_LLVOVOLUME_H
 
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 1777fcc0f2..205585b34e 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -3031,6 +3031,12 @@ void LLPipeline::updateGeom(F32 max_dtime)
 				}
 			}
 
+			if (drawablep->isUnload())
+			{
+				drawablep->unload();
+				drawablep->clearState(LLDrawable::FOR_UNLOAD);
+			}
+
 			if (updateDrawableGeom(drawablep, TRUE))
 			{
 				drawablep->clearState(LLDrawable::IN_REBUILD_Q1);