There are still a few problems with it, and it might be too expensive to use too often, but as an option, why not. And if there would be some major performance issues, it can always, optionally, be replaced with new parallax mapping with soft shadows (or, simpler parallax mapping without self-shadowing):
https://acstuff.ru/u/comparison/JSK
https://acstuff.ru/u/comparison/ofQ
Thank you for all the support! If you have any suggestions, please let me know. 🙂
(Never mind the car, I just used it for testing before, and then thought this thing would look nice with some shiny car behind it.)