I added possibility to assign different textures to building material.
So displayed material texture is chosen randomly from texture set. I added some textures from wiki. You can test new textures by you own. To do that use option “Download form wiki”. After using that it well be created file:
“{JOSM_DIR}/plugins/kendzi3d/resources/textureLibraryWiki.xml”
You can put new textures to directory:
“{JOSM_DIR}/plugins/kendzi3d/textures/”
And add them to file textureLibraryWiki.xml. After using option “Clean up” in JOSM menu, textures added by you should appear in plugin.