/3/ - 3DCG

I'm looking at this video

https://www.youtube.com/watch?v=2Ybogggyl0Y

and wondering how do they usually approach this challenge - do they actually recreate all the textures from scratch or push them through AI upscales, tweak in photoshop, sharpen etc.? I'm not sure, but since I see a lot of details on those reworked textures to be identical to original ones, I can't believe they have been actually recreated from scratch and still managed to match every single detail.

Does this guy really deserve a job in cd projekt red like some people are saying in the comments? I always thought this is just a meme where you spend some time sharpening the texture in photoshop. It's just time consuming. In that case I wouldn't even post it in my portfolio. But again, if this is actually recreated in Substance from scratch, then that's insane.