Just passing this on. This link takes you to the portal to a two-page article:
Wo Tai Lao Le
Two things to say about the content:
Software has been used to correct optical distortion for millennia
using photography to make drawings is in itself "cheating". One only has to examine the history of photography vis a vis painting and drawing to find these kinds of arguments proceeding. Manipulated vs straight photography ( look at the criticism of Henry Peach Robinson by the f64 crowd for one example).
This would make for interesting discussions in the Photography Forum. It's quite dead over there.
Software has been used to correct optical distortion for millennia…