Their 3D and AR tech is pretty much top of the industry. I'm not an expert so I might be full of shit, but I'm guessing rigging a table tennis ball so the talent can play table tennis in 3D takes some skill. That said, I'd say Holo's current 3D is a far cry from the Korone meme, and has been catching up pretty alright.
I feel like 4th Fes was definitely comparable to the top clip as far as tracking. Lighting however I feel like Hololive is still behind on, but that could very well be an issue with how they textured their 3D models. I've noticed some member's eyes glowing in the dark for instance, which I'm not sure is fully intentional. What I really hope they improve, and what's also visible in the Nijisanji clips is just some damn better mouth/lip tracking. The lack of good mouth tracking was probably the most glaring issue for me during 4th Fes.
Unrelated but Goddamn if some of those character designs aren't atrocious.
So apparently calli and ina wants to invite someone who knows fighting game for the casting of the tournament calli is organizing. I dont know who this guy is but since we have a couple of fighting game connoisseur here maybe someone can give a background on him?
Archive
Im looking right now for the time stamp from the stream they had yesterday
He also played Idol Showdown the other day for a bit: