One of the fundamentals aspects of this project for the client apart from the interactivity, was to simulate a realistic lighting according to the real location of the hotel. This was easily managed thanks to the latest Unreal update adding new features to lighting.
Once the client was happy with the result, texturing stage began. Thanks to Substance and Quixel this process was painless and extremely fun.
Here you can see the final project delivered to the client as an application. The same example you see is also available for mobile devices and VR.