Creating visuals is one thing. Designing the mathematical model behaivng like real airplane is completely different ball game.
I often wonder myself how can someone other than airspace engineer who actually is part of the team responsible for design and/or maitnance of said aircraft or aviation inspector, how anyone else can obtain detailed enough data necessary to create such model. Must be something I am not aware of existing, like open source math models of generic cruiseliner that can be tweaked to fit particular aircrafl make/model. Still, hard to imagine mafh model would actually reflect the real airplane. Unless developed with effort mentioned above.
My 5 cents from seasoned engineer.