If the curve radius is less than about six meters the roof will tend to look like a normal pitched roof with a strange mixture of pitches.
How to make a round roof minecraft.
Allowing for the very thick walls one gets in minecraft that give a usable internal space of 4 8 meters.
This roof design is common in the original villages produced by minecraft s terrain generator and is useful for small buildings.
The building in the image is 6 10 meters.
But if you have your heart set on circles or spheres here s a trick.
Sufficient for one or two rooms.
In a world where everything consists of squares and cubes creating anything that s perfectly round in your minecraft world is impossible.
You can come close by stacking blocks.
At smaller scales it is easier to correctly interpret a dome structure as curved but other curves.