By my perspective it is smooth.
I believe that this was China.
Stupas originated in India around 4th century BCE and later the idea spread around Asia . In China it was then combined with the Chinese Watchtowers, and then as such it spread (under the name Pagoda) to other countries, such as Japan.
Explanation:
completely splitting said first element in exactly 2" nodes n-dimensional second elements in such a manner that said first additional node forms a comer node
Answer:
Add white doodles around the outside