I think it is actually quite weird that we don't have a thread on graphics technology, yet. So, I would like to encourage you to share awesome new demos, talks, articles or papers about graphics technology here.
I recently came accross this brilliant analysis of the rendering pipeline of "Rise of the Tomb Raider". I would love to see something like that for Doom Eternal, but so far, I could only find this rather superficial (but nevertheless interesting) review by Digital Foundry.
Epic revealed Unreal Engine 5 today, which looks absolutely stunning. That Nanite-Technology will probably save game developers quite a bit of time. I do wonder, 'though, how the actually do it? Do they dynamically generate LOD-models? Also, does their Lumen technology require RTX?