Installing Blender Add on - Terasology/TutorialAssetSystem GitHub Wiki
1. Download the python script from here.
2. Open Blender. Navigate to File-> User Preferences...Switch to "Add-ons" tab. Click on "Install from File..." at the bottom.
3. Navigate to the directory where the script was downloaded. Select the file and click "Install from File.." (io_export_md5.py).
4. The add-on will appear in the list. It can be enabled by searching for "md5" in the search field and then enabling it. Click on "Save User Settings" at the bottom to enable the script every time blender starts.
5. Go the default layout of blender or select the Properties Window in one of the editor that you have open. On scrolling down you will be able to see a new Panel in the properties window which can be used to export Mesh, Animations, Prefab, Texture and Material data.
6. Navigate to File->Export->Export zip for Terasology. This can be used to export a ready to use module in Terasology.