diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index d117324..847b998 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/SceneGeom.cpp b/SceneGeom.cpp
index 880fbbd..da5df7f 100644
--- a/SceneGeom.cpp
+++ b/SceneGeom.cpp
@@ -74,7 +74,7 @@ bool
 Scene::UpdateExtension( void)
 {
    BBox3d b3Ext ;
-   if ( m_pGeomDB == nullptr  ||  ! m_pGeomDB->GetLocalBBox( GDB_ID_ROOT, b3Ext))
+   if ( m_pGeomDB == nullptr  ||  ! m_pGeomDB->GetLocalBBox( GDB_ID_ROOT, b3Ext, BBF_ONLY_VISIBLE))
       return false ;
    return SetExtension( b3Ext) ;
 }