void WalkableShape::setTransform(const MatrixF & mat)
{
   mObjToWorld = mWorldToObj = mat;
   mWorldToObj.affineInverse();

   // Update the world-space AABB.
   resetWorldBox();

   // If we're in a SceneManager, sync our scene state.
   if( mSceneManager != NULL )
      mSceneManager->notifyObjectDirty( this );

   if ( mPhysicsRep )
   {  // We can't use kinematic target if we have attached objects, the new position won't
      // be set until after the collide/slide on the attached object
      if (mAttachments.size() > 0)
         mPhysicsRep->setTransform( mat );
      else
         mPhysicsRep->moveKinematicTo( mat );
   }
}