title: How to create a .mesh file with OGRE?
body: <p>I'm relatively new to OGRE graphics engine, so my question may seem too obvious, but searching for relevant information was not successful.</p>
  
  <p>Given:<br>
    I have an OGRE application with a scene created of some meshes, lights, cameras and textures. It is rather simple, I think. That all is represented by a tree of scene nodes(internal object).</p>
  
  <p>The goal:<br>
    To save the full tree of scene nodes or, preferably, an indicated branch of nodes of the tree to a ".mesh" file. To be able load it later as any other mesh. The ".mesh.xml" format is also fine. How it could be done?</p>
  
  <p>If not:<br>
    If the desired thing is not possible, what is normal way to create those ".mesh" files? And where I could find some guides for it?</p>