diff --git a/hecl/blender/BlenderConnection.cpp b/hecl/blender/BlenderConnection.cpp
index 8b1ef8c9f..07525b0d9 100644
--- a/hecl/blender/BlenderConnection.cpp
+++ b/hecl/blender/BlenderConnection.cpp
@@ -430,6 +430,14 @@ bool BlenderConnection::openBlend(const ProjectPath& path, bool force)
             }
             ++idx;
         }
+        m_loadedRigged = false;
+        if (m_loadedType == BlendType::Mesh)
+        {
+            _writeLine("GETMESHRIGGED");
+            _readLine(lineBuf, sizeof(lineBuf));
+            if (!strcmp("TRUE", lineBuf))
+                m_loadedRigged = true;
+        }
         return true;
     }
     return false;
diff --git a/hecl/blender/BlenderConnection.hpp b/hecl/blender/BlenderConnection.hpp
index 4beb8ec93..6877290af 100644
--- a/hecl/blender/BlenderConnection.hpp
+++ b/hecl/blender/BlenderConnection.hpp
@@ -57,6 +57,7 @@ private:
     int m_readpipe[2];
     int m_writepipe[2];
     BlendType m_loadedType = BlendType::None;
+    bool m_loadedRigged = false;
     ProjectPath m_loadedBlend;
     std::string m_startupBlend;
     size_t _readLine(char* buf, size_t bufSz);
@@ -70,6 +71,7 @@ public:
 
     bool createBlend(const ProjectPath& path, BlendType type);
     BlendType getBlendType() const {return m_loadedType;}
+    bool getRigged() const {return m_loadedRigged;}
     bool openBlend(const ProjectPath& path, bool force=false);
     bool saveBlend();
     void deleteBlend();
diff --git a/hecl/blender/hecl_blendershell.py b/hecl/blender/hecl_blendershell.py
index 3c859d3f4..81f9c5e0f 100644
--- a/hecl/blender/hecl_blendershell.py
+++ b/hecl/blender/hecl_blendershell.py
@@ -221,6 +221,16 @@ while True:
     elif cmdargs[0] == 'GETTYPE':
         writepipeline(bpy.context.scene.hecl_type.encode())
 
+    elif cmdargs[0] == 'GETMESHRIGGED':
+        meshName = bpy.context.scene.hecl_mesh_obj
+        if meshName not in bpy.data.objects:
+            writepipeline(b'FALSE')
+        else:
+            if len(bpy.data.objects[meshName].vertex_groups):
+                writepipeline(b'TRUE')
+            else:
+                writepipeline(b'FALSE')
+
     elif cmdargs[0] == 'SAVE':
         bpy.context.user_preferences.filepaths.save_version = 0
         if 'FINISHED' in bpy.ops.wm.save_mainfile(check_existing=False, compress=True):
diff --git a/hecl/extern/boo b/hecl/extern/boo
index 23f49fcc1..4cec16380 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit 23f49fcc19f2ef2be2e272ba00bfed863eaea423
+Subproject commit 4cec163804dd293818029d838dda512c7b985aaf
diff --git a/hecl/include/hecl/hecl.hpp b/hecl/include/hecl/hecl.hpp
index 3bf9fe025..ad81ee868 100644
--- a/hecl/include/hecl/hecl.hpp
+++ b/hecl/include/hecl/hecl.hpp
@@ -765,10 +765,12 @@ class ProjectPath
     Database::Project* m_proj = nullptr;
     SystemString m_absPath;
     SystemString m_relPath;
+    SystemString m_auxInfo;
     Hash m_hash = 0;
 #if HECL_UCS2
     std::string m_utf8AbsPath;
     std::string m_utf8RelPath;
+    std::string m_utf8AuxInfo;
 #endif
 public:
     /**
@@ -1048,6 +1050,20 @@ public:
 #endif
     }
 
+    const SystemString& getAuxInfo() const
+    {
+        return m_auxInfo;
+    }
+
+    const std::string& getAuxInfoUTF8() const
+    {
+#if HECL_UCS2
+        return m_utf8AuxInfo;
+#else
+        return m_auxInfo;
+#endif
+    }
+
     /**
      * @brief Type of path
      */
diff --git a/hecl/lib/ProjectPath.cpp b/hecl/lib/ProjectPath.cpp
index e3f418029..75f3f1031 100644
--- a/hecl/lib/ProjectPath.cpp
+++ b/hecl/lib/ProjectPath.cpp
@@ -63,7 +63,18 @@ static SystemString CanonRelPath(const SystemString& path, const ProjectRootPath
 void ProjectPath::assign(Database::Project& project, const SystemString& path)
 {
     m_proj = &project;
-    m_relPath = CanonRelPath(path);
+
+    SystemString usePath;
+    size_t pipeFind = path.rfind(_S('|'));
+    if (pipeFind != SystemString::npos)
+    {
+        m_auxInfo.assign(path.cbegin() + pipeFind + 1, path.cend());
+        usePath.assign(path.cbegin(), path.cbegin() + pipeFind);
+    }
+    else
+        usePath = path;
+
+    m_relPath = CanonRelPath(usePath);
     m_absPath = project.getProjectRootPath().getAbsolutePath() + _S('/') + m_relPath;
     SanitizePath(m_relPath);
     SanitizePath(m_absPath);
@@ -71,31 +82,42 @@ void ProjectPath::assign(Database::Project& project, const SystemString& path)
 #if HECL_UCS2
     m_utf8AbsPath = WideToUTF8(m_absPath);
     m_utf8RelPath = WideToUTF8(m_relPath);
-    m_hash = Hash(m_utf8RelPath);
+    m_utf8AuxInfo = WideToUTF8(m_auxInfo);
+    if (m_utf8AuxInfo.size())
+        m_hash = Hash(m_utf8RelPath + '|' + m_utf8AuxInfo);
+    else
+        m_hash = Hash(m_utf8RelPath);
 #else
-    m_hash = Hash(m_relPath);
+    if (m_auxInfo.size())
+        m_hash = Hash(m_relPath + '|' + m_auxInfo);
+    else
+        m_hash = Hash(m_relPath);
 #endif
 }
 
 #if HECL_UCS2
 void ProjectPath::assign(Database::Project& project, const std::string& path)
 {
-    m_proj = &project;
     std::wstring wpath = UTF8ToWide(path);
-    m_relPath = CanonRelPath(wpath);
-    m_absPath = project.getProjectRootPath().getAbsolutePath() + _S('/') + m_relPath;
-    SanitizePath(m_relPath);
-    SanitizePath(m_absPath);
-    m_utf8AbsPath = WideToUTF8(m_absPath);
-    m_utf8RelPath = WideToUTF8(m_relPath);
-    m_hash = Hash(m_utf8RelPath);
+    assign(project, wpath);
 }
 #endif
 
 void ProjectPath::assign(const ProjectPath& parentPath, const SystemString& path)
 {
     m_proj = parentPath.m_proj;
-    m_relPath = CanonRelPath(parentPath.m_relPath + _S('/') + path);
+
+    SystemString usePath;
+    size_t pipeFind = path.rfind(_S('|'));
+    if (pipeFind != SystemString::npos)
+    {
+        m_auxInfo.assign(path.cbegin() + pipeFind + 1, path.cend());
+        usePath.assign(path.cbegin(), path.cbegin() + pipeFind);
+    }
+    else
+        usePath = path;
+
+    m_relPath = CanonRelPath(parentPath.m_relPath + _S('/') + usePath);
     m_absPath = m_proj->getProjectRootPath().getAbsolutePath() + _S('/') + m_relPath;
     SanitizePath(m_relPath);
     SanitizePath(m_absPath);
@@ -103,24 +125,24 @@ void ProjectPath::assign(const ProjectPath& parentPath, const SystemString& path
 #if HECL_UCS2
     m_utf8AbsPath = WideToUTF8(m_absPath);
     m_utf8RelPath = WideToUTF8(m_relPath);
-    m_hash = Hash(m_utf8RelPath);
+    m_utf8AuxInfo = WideToUTF8(m_auxInfo);
+    if (m_utf8AuxInfo.size())
+        m_hash = Hash(m_utf8RelPath + '|' + m_utf8AuxInfo);
+    else
+        m_hash = Hash(m_utf8RelPath);
 #else
-    m_hash = Hash(m_relPath);
+    if (m_auxInfo.size())
+        m_hash = Hash(m_relPath + '|' + m_auxInfo);
+    else
+        m_hash = Hash(m_relPath);
 #endif
 }
 
 #if HECL_UCS2
 void ProjectPath::assign(const ProjectPath& parentPath, const std::string& path)
 {
-    m_proj = parentPath.m_proj;
     std::wstring wpath = UTF8ToWide(path);
-    m_relPath = CanonRelPath(parentPath.m_relPath + _S('/') + wpath);
-    m_absPath = m_proj->getProjectRootPath().getAbsolutePath() + _S('/') + m_relPath;
-    SanitizePath(m_relPath);
-    SanitizePath(m_absPath);
-    m_utf8AbsPath = WideToUTF8(m_absPath);
-    m_utf8RelPath = WideToUTF8(m_relPath);
-    m_hash = Hash(m_utf8RelPath);
+    assign(parentPath, wpath);
 }
 #endif