|Custom Stuff 1
Information presented below this line is outdated syntax or information used for Custom Stuff 1. It will not work with Custom Stuff 2.
To add this value, copy the following line substituting the shown index for that of the bottom half of your door in your texture file.
Despite what you may think, this attribute does not texture the bottom face of a normal-type block. In that instance, you'll need to define the bottom face with the textureindex attribute, and use Directional Texture Index for the other five faces.