Xu Qingyan stood on the side, watching the lighting planning in action; the atmosphere on-site was lively, and a teacher from the director's group turned his head and said a word.
"I don't understand lighting. I just want that effect."
He found it amusing. The lighting director's face was at a loss for words as he continued to argue.
"This is challenging. It's theoretically feasible, but..."
After listening for a while, he learned that the lighting layout concept was based on "Rites of Zhou. Kaogong Ji", which essentially was a miniature representation of ancient Chang'an City.
When the ancients built cities, they were typically square-shaped with each side being nine li long, and three gates of various sizes on each side. This is what's meant by "square nine li, side three gates."
The lighting design concept was also created according to this "microcosm", but the difficulty lied in... traditional stage lighting focusing on perspective, while this was an outdoor grand stage.