Editing a rigged mesh (MakeHuman > Blender > Unity) I'm trying to use this program called MakeHuman which creates a rigged mesh for you, but I am trying to edit the mesh in Blender before using it in Unity. There are so many layers and complexity to the Blender scene that I don't know what to do, even given that I have done basic rigging manually before.

For simplicity in example, I would like to replace the head of the mesh with a cube. I believe what I must do is:


Unparent the mesh from the rig (how do I do this properly?)
Edit the mesh
Re-parent the mesh to the rig
Assign automatic weight painting


I've tried this before and what I get is my character floating in space in Unity, I believe because there is something wrong with the weight painting?

Please help!

Thanks

http://www.pasteall.org/blend/37244



Recently I've tried clearing all the Vertex Groups and modifier after Clear Parent, editing my mesh, then reparenting with automatic weight. When I go to bring this into Unity with animations put onto it, it just stands there.
I think your steps should look more like the following:


Edit the mesh

1.1 - delete the vertices for the head

1.2 - shift+a (to add) and select cube (while still in edit mode)

1.3 - The cube should be selected. Place the cube (g button) to desired location.

1.4 - make sure the vertices of the cube are still selected, and go into the "data" panel (icon is a polygon triangle thingy), find the vertex group named "DEF-head", and assign the cube vertices to that group (set slider to 1.0 and click "Assign" button).