diff --git a/apps/opencs/model/doc/document.cpp b/apps/opencs/model/doc/document.cpp
index a7809f3e3..d9f86cdde 100644
--- a/apps/opencs/model/doc/document.cpp
+++ b/apps/opencs/model/doc/document.cpp
@@ -275,7 +275,7 @@ CSMDoc::Document::Document (VFS::Manager* vfs, const Files::ConfigurationManager
     const Fallback::Map* fallback,
     ToUTF8::FromType encoding, CSMWorld::ResourcesManager& resourcesManager,
     const std::vector<std::string>& blacklistedScripts)
-: mVFS(vfs), mSavePath (savePath), mContentFiles (files), mNew (new_), mData (encoding, resourcesManager, fallback, resDir),
+: mVFS(vfs), mSavePath (savePath), mContentFiles (files), mNew (new_), mData (encoding, vfs, resourcesManager, fallback, resDir),
   mTools (*this, encoding),
   mProjectPath ((configuration.getUserDataPath() / "projects") /
   (savePath.filename().string() + ".project")),
diff --git a/apps/opencs/model/world/data.cpp b/apps/opencs/model/world/data.cpp
index 61db4ff77..d7f42d027 100644
--- a/apps/opencs/model/world/data.cpp
+++ b/apps/opencs/model/world/data.cpp
@@ -62,9 +62,9 @@ int CSMWorld::Data::count (RecordBase::State state, const CollectionBase& collec
     return number;
 }
 
-CSMWorld::Data::Data (ToUTF8::FromType encoding, ResourcesManager& resourcesManager, const Fallback::Map* fallback, const boost::filesystem::path& resDir)
+CSMWorld::Data::Data (ToUTF8::FromType encoding, VFS::Manager* vfs, ResourcesManager& resourcesManager, const Fallback::Map* fallback, const boost::filesystem::path& resDir)
 : mEncoder (encoding), mPathgrids (mCells), mRefs (mCells),
-  mResourcesManager (resourcesManager), mFallbackMap(fallback),
+  mVFS(vfs), mResourcesManager (resourcesManager), mFallbackMap(fallback),
   mReader (0), mDialogue (0), mReaderIndex(1), mResourceSystem(new Resource::ResourceSystem(resourcesManager.getVFS()))
 {
     mResourceSystem->getSceneManager()->setShaderPath((resDir / "shaders").string());
@@ -1218,8 +1218,7 @@ std::vector<std::string> CSMWorld::Data::getIds (bool listDeleted) const
 
 void CSMWorld::Data::assetsChanged()
 {
-    VFS::Manager* vfs = mResourcesManager.getVFS();
-    vfs->rebuildIndex();
+    mVFS->rebuildIndex();
 
     ResourceTable* meshTable = static_cast<ResourceTable*>(getTableModel(UniversalId::Type_Meshes));
     ResourceTable* iconTable = static_cast<ResourceTable*>(getTableModel(UniversalId::Type_Icons));
@@ -1264,7 +1263,7 @@ void CSMWorld::Data::rowsChanged (const QModelIndex& parent, int start, int end)
 
 const VFS::Manager* CSMWorld::Data::getVFS() const
 {
-    return mResourcesManager.getVFS();
+    return mVFS;
 }
 
 const Fallback::Map* CSMWorld::Data::getFallbackMap() const
diff --git a/apps/opencs/model/world/data.hpp b/apps/opencs/model/world/data.hpp
index 8fe5eeff9..771a706b3 100644
--- a/apps/opencs/model/world/data.hpp
+++ b/apps/opencs/model/world/data.hpp
@@ -108,6 +108,7 @@ namespace CSMWorld
             RefCollection mRefs;
             IdCollection<ESM::Filter> mFilters;
             Collection<MetaData> mMetaData;
+            VFS::Manager* mVFS;
             ResourcesManager& mResourcesManager;
             const Fallback::Map* mFallbackMap;
             std::vector<QAbstractItemModel *> mModels;
@@ -140,7 +141,7 @@ namespace CSMWorld
 
         public:
 
-            Data (ToUTF8::FromType encoding, ResourcesManager& resourcesManager, const Fallback::Map* fallback, const boost::filesystem::path& resDir);
+            Data (ToUTF8::FromType encoding, VFS::Manager* vfs, ResourcesManager& resourcesManager, const Fallback::Map* fallback, const boost::filesystem::path& resDir);
 
             virtual ~Data();
 
diff --git a/apps/opencs/model/world/resourcesmanager.cpp b/apps/opencs/model/world/resourcesmanager.cpp
index 6b271c276..c50b86682 100644
--- a/apps/opencs/model/world/resourcesmanager.cpp
+++ b/apps/opencs/model/world/resourcesmanager.cpp
@@ -14,16 +14,19 @@ void CSMWorld::ResourcesManager::addResources (const Resources& resources)
         resources));
 }
 
-void CSMWorld::ResourcesManager::setVFS(VFS::Manager *vfs)
+const char * const * CSMWorld::ResourcesManager::getMeshExtensions()
 {
-    mVFS = vfs;
-    mResources.clear();
-
     // maybe we could go over the osgDB::Registry to list all supported node formats
-
     static const char * const sMeshTypes[] = { "nif", "osg", "osgt", "osgb", "osgx", "osg2", 0 };
+    return sMeshTypes;
+}
 
-    addResources (Resources (vfs, "meshes", UniversalId::Type_Mesh, sMeshTypes));
+void CSMWorld::ResourcesManager::setVFS(const VFS::Manager *vfs)
+{
+    mVFS = vfs;
+    mResources.clear();
+
+    addResources (Resources (vfs, "meshes", UniversalId::Type_Mesh, getMeshExtensions()));
     addResources (Resources (vfs, "icons", UniversalId::Type_Icon));
     addResources (Resources (vfs, "music", UniversalId::Type_Music));
     addResources (Resources (vfs, "sound", UniversalId::Type_SoundRes));
@@ -31,21 +34,18 @@ void CSMWorld::ResourcesManager::setVFS(VFS::Manager *vfs)
     addResources (Resources (vfs, "videos", UniversalId::Type_Video));
 }
 
-VFS::Manager* CSMWorld::ResourcesManager::getVFS() const
+const VFS::Manager* CSMWorld::ResourcesManager::getVFS() const
 {
     return mVFS;
 }
 
 void CSMWorld::ResourcesManager::recreateResources()
 {
-    // TODO make this shared with setVFS function
-    static const char * const sMeshTypes[] = { "nif", "osg", "osgt", "osgb", "osgx", "osg2", 0 };
-
     std::map<UniversalId::Type, Resources>::iterator it = mResources.begin();
     for ( ; it != mResources.end(); ++it)
     {
         if (it->first == UniversalId::Type_Mesh)
-            it->second.recreate(mVFS, sMeshTypes);
+            it->second.recreate(mVFS, getMeshExtensions());
         else
             it->second.recreate(mVFS);
     }
diff --git a/apps/opencs/model/world/resourcesmanager.hpp b/apps/opencs/model/world/resourcesmanager.hpp
index 969666856..0e8385300 100644
--- a/apps/opencs/model/world/resourcesmanager.hpp
+++ b/apps/opencs/model/world/resourcesmanager.hpp
@@ -16,19 +16,21 @@ namespace CSMWorld
     class ResourcesManager
     {
             std::map<UniversalId::Type, Resources> mResources;
-            VFS::Manager* mVFS;
+            const VFS::Manager* mVFS;
 
         private:
 
             void addResources (const Resources& resources);
 
+            const char * const * getMeshExtensions();
+
         public:
 
             ResourcesManager();
 
-            VFS::Manager* getVFS() const;
+            const VFS::Manager* getVFS() const;
 
-            void setVFS(VFS::Manager* vfs);
+            void setVFS(const VFS::Manager* vfs);
 
             void recreateResources();
 
diff --git a/components/resource/resourcesystem.cpp b/components/resource/resourcesystem.cpp
index b1061adcd..d7a6771c4 100644
--- a/components/resource/resourcesystem.cpp
+++ b/components/resource/resourcesystem.cpp
@@ -2,8 +2,6 @@
 
 #include <algorithm>
 
-#include <osgDB/Registry>
-
 #include "scenemanager.hpp"
 #include "imagemanager.hpp"
 #include "niffilemanager.hpp"