depth, normals i guess

engine/cl_dll.cpp

@@ -2,6 +2,7 @@
 #include "tier1/interface.h"
 #include "tier0/platform.h"
 #include "icvar.h"
+#include "tier2/ifilesystem.h"
 
 void CClientGameDLL::Init()
 {
@@ -19,6 +20,7 @@ void CClientGameDLL::Init()
 
 	pEngineBridge->ConnectInterface(RENDER_CONTEXT_INTERFACE_VERSION, m_pRenderContext);
 	pEngineBridge->ConnectInterface("MainWindow", m_pGameWindow);
+	pEngineBridge->ConnectInterface(FILESYSTEM_INTERFACE_VERSION, filesystem);
 	pEngineBridge->Init();
 	m_pBridge = pEngineBridge;
 }