FOSS gamedev and creative worlds

When you look at pictures of buildings, old and new, you see a lot of arches. Are these possible with nodeboxes? Anyway I'd like a mod with 3d arches where 1 node = 1 arch and 1 node= 1/2 arch. It would really make buildings look a lot better. It would be good to apply a decent number of textures to these arches like stairsplus mod. It would be even better if the user could pick any texture to apply to the arch.

if, of course it is possible there are people already working with nodeboxes to create similar things, visit the following topic:

http://minetest.net/forum/viewtopic.php?id=2333

here you will find many ideas, including a tutorial I've done, and have been translated into English, to use Wings 3D to help you create complex nodeboxes ...