3 files changed, 28 insertions, 7 deletions

diff --git a/indra/newview/llviewerregion.cpp b/indra/newview/llviewerregion.cpp
index 6e9f649d23..2ed7d59ec0 100755
--- a/indra/newview/llviewerregion.cpp
+++ b/indra/newview/llviewerregion.cpp
@@ -377,7 +377,8 @@ LLViewerRegion::LLViewerRegion(const U64 &handle,
 	mPacketsReceived(0.f),
 	mDead(FALSE),
 	mLastVisitedEntry(NULL),
-	mInvisibilityCheckHistory(-1)
+	mInvisibilityCheckHistory(-1),
+	mPaused(FALSE)
 {
 	mWidth = region_width_meters;
 	mImpl->mOriginGlobal = from_region_handle(handle); 
@@ -1185,6 +1186,7 @@ void LLViewerRegion::clearCachedVisibleObjects()
 
 	//reset all occluders
 	mImpl->mVOCachePartition->resetOccluders();
+	mPaused = TRUE;
 
 	//clean visible entries
 	for(LLVOCacheEntry::vocache_entry_set_t::iterator iter = mImpl->mVisibleEntries.begin(); iter != mImpl->mVisibleEntries.end();)
@@ -1257,9 +1259,13 @@ BOOL LLViewerRegion::idleUpdate(F32 max_update_time)
 	{
 		return did_update;
 	}	
-	
+	if(mPaused)
+	{
+		mPaused = FALSE; //unpause.
+	}
+
 	//reset all occluders
-	mImpl->mVOCachePartition->resetOccluders();
+	mImpl->mVOCachePartition->resetOccluders();	
 
 	max_update_time -= update_timer.getElapsedTimeF32();	
 
diff --git a/indra/newview/llviewerregion.h b/indra/newview/llviewerregion.h
index 79a992a4c1..cc7ee5c6ee 100755
--- a/indra/newview/llviewerregion.h
+++ b/indra/newview/llviewerregion.h
@@ -373,6 +373,8 @@ public:
 	void removeFromCreatedList(U32 local_id);
 	void addToCreatedList(U32 local_id);	
 
+	BOOL isPaused() const {return mPaused;}
+
 private:
 	void addToVOCacheTree(LLVOCacheEntry* entry);
 	LLViewerObject* addNewObject(LLVOCacheEntry* entry);
@@ -482,6 +484,7 @@ private:
 	BOOL	mCapabilitiesReceived;
 	BOOL    mReleaseNotesRequested;
 	BOOL    mDead;  //if true, this region is in the process of deleting.
+	BOOL    mPaused; //pause processing the objects in the region
 
 	typedef std::map<U32, std::vector<U32> > orphan_list_t;
 	orphan_list_t mOrphanMap;
diff --git a/indra/newview/llvocache.cpp b/indra/newview/llvocache.cpp
index 71d5a92df3..b8a6141e2c 100755
--- a/indra/newview/llvocache.cpp
+++ b/indra/newview/llvocache.cpp
@@ -481,9 +481,13 @@ void LLVOCacheEntry::updateParentBoundingInfo(const LLVOCacheEntry* child)
 //-------------------------------------------------------------------
 LLVOCacheGroup::~LLVOCacheGroup()
 {
-	if(mOcclusionState[0] & ACTIVE_OCCLUSION)
+	for(S32 i = 0; i < LLViewerCamera::NUM_CAMERAS; i++)
 	{
-		((LLVOCachePartition*)mSpatialPartition)->removeOccluder(this);
+		if(mOcclusionState[i] & ACTIVE_OCCLUSION)
+		{
+			((LLVOCachePartition*)mSpatialPartition)->removeOccluder(this);
+			break;
+		}
 	}
 }
 
@@ -726,6 +730,10 @@ S32 LLVOCachePartition::cull(LLCamera &camera, bool do_occlusion)
 	{
 		return 0;
 	}
+	if(mRegionp->isPaused())
+	{
+		return 0;
+	}
 
 	((LLviewerOctreeGroup*)mOctree->getListener(0))->rebound();
 
@@ -791,7 +799,7 @@ void LLVOCachePartition::addOccluders(LLviewerOctreeGroup* gp)
 
 	if(!group->isOcclusionState(LLOcclusionCullingGroup::ACTIVE_OCCLUSION))
 	{
-		group->setOcclusionState(LLOcclusionCullingGroup::ACTIVE_OCCLUSION, LLOcclusionCullingGroup::STATE_MODE_ALL_CAMERAS);
+		group->setOcclusionState(LLOcclusionCullingGroup::ACTIVE_OCCLUSION);
 		mOccludedGroups.insert(group);
 	}
 }
@@ -808,7 +816,11 @@ void LLVOCachePartition::processOccluders(LLCamera* camera)
 	for(std::set<LLVOCacheGroup*>::iterator iter = mOccludedGroups.begin(); iter != mOccludedGroups.end(); ++iter)
 	{
 		LLVOCacheGroup* group = *iter;
-		group->doOcclusion(camera, &shift);
+		if(group->isOcclusionState(LLOcclusionCullingGroup::ACTIVE_OCCLUSION))
+		{
+			group->doOcclusion(camera, &shift);
+			group->clearOcclusionState(LLOcclusionCullingGroup::ACTIVE_OCCLUSION);
+		}
 	}	
 }