Yeah that's the article. The is a few there though covering similar topics. You don't need to be an expert or even understand the science at the root level to make great art though. So long as you get general principles and know how to find answers should you need them you are set. I'll add one counterpoint about…
I have experience in Archviz, its a good career if you have the right clients and make sure to be fully transparent with what you can do for them and how long it would take you. The best thing about it is the transparency since theres very little secrecy about what is being worked on (game companies can be pretty paranoid…