Intermiediary commit.

indra/newview/llworld.cpp

@@ -769,6 +769,17 @@ void LLWorld::updateRegions(F32 max_update_time)
 	}
 }
 
+
+void LLWorld::clearAllVisibleObjects()
+{
+	for (region_list_t::iterator iter = mRegionList.begin();
+		 iter != mRegionList.end(); ++iter)
+	{
+		//clear all cached visible objects.
+		(*iter)->clearCachedVisibleObjects();
+	}
+}
+
 void LLWorld::updateParticles()
 {
 	static const LLCachedControl<bool> freeze_time("FreezeTime",false);
@@ -842,7 +853,6 @@ LLCloudGroup* LLWorld::findCloudGroup(const LLCloudPuff &puff)
 }
 #endif
 
-
 void LLWorld::renderPropertyLines()
 {
 	S32 region_count = 0;