Oppo has released a promo video detailing the process it has used to create the unique camera bump on the rear of the new Oppo Find X3 Pro. The camera housing has polarized the Android fan base but it is the result of a highly complex 40-hour process that is impressive in its technical complexity.
https://www.notebookcheck.net/The-unusual-camera-bump-on-the-Oppo-Find-X3-Pro-is-the-result-of-a-complex-40-hour-forging-process.527093.0.html
Honestly, that just sounds like a biiiig waste of time and effort.