00:00Questo è un'ottica tecnologica che è setto nel mondo di The Witcher 4.
00:06Lo che vi ho visto e vi farò ora, è che si riempie su una standard PlayStation 5 a 60 fps con raytracing.
00:15In questo gioco, vi farò di giocare a Siri, un professionista monster slayer, The Witcher.
00:21She explora il mondo e ha un'unica monster for coin.
00:24The region we are in is called Kovir, and you'll get to explore it in a game.
00:31Right now, Siri is investigating the monster, and after gathering new clues, she is heading back to a nearby village.
00:42All right, everyone, meet Kelpie!
00:47Let weeds be weeds, Kelpie!
00:49So, just like Geralt at Roach, Siri has her own loyal companion.
00:57We return to town.
00:59These two characters need to feel like one, since you're gonna explore the world on horseback, riding these to feel seamless, natural, and just fun.
01:08Yeah, and to support that, we're introducing multi-character motion matching in Unreal.
01:13So, Siri and Kelpie, they're perfectly synchronized when mounting from any angle and speed.
01:18And we also support root motion movement on Kelpie, so controlling her feels realistic and grounded.
01:27And there are also some really nice improvements to our Unreal Chaos Flesh Solver, and these machine-learn deformations.
01:34So, you've got realistic muscles moving and stretching under Kelpie's skin without compromising the performance there.
01:39So, let's leave Siri behind for a second and talk about the world itself.
01:52So much of the Witcher world is natural, organic, especially Kovir with its dense forest and wild nature.
01:59Yeah, and wild nature is hard.
02:03And with Nanite Geometry, we've freed artists from so many of their old constraints.
02:07But we don't want to rest until everything we do in Unreal has that same spirit of freedom.
02:12There's always more work to do.
02:13And foliage is a huge piece of that puzzle.
02:16So, we are excited to introduce Nanite Foliage.
02:19And in order to achieve gorgeous foliage density everywhere, while still being memory efficient, fast to render, we believe that a new idea was needed.
02:31So, instead of the same card approach we've been using for the past 20 years, artists should be free to take a Nanite approach to foliage, modeling every single leaf and pine needle.
02:41And the old LOD tricks of the past, they needed a complete rethink.
02:47And in their place, it's a new adaptive voxel representation in Nanite.
02:52It's volumetric, it's fully 3D, it is super fast to render.
02:56And these dense clusters of triangles turn into these cubes, which at a distance, they're no larger than a pixel.
03:02And they react to the changing light of our dynamic sun and our shadows.
03:06And they allow artists to render whatever amount of foliage is needed to achieve their vision without compromise.
03:13And no compromise means how ambitious we are when it comes to bringing our vision to life with incredible visuals.
03:20But more than that, together with Epic, we created fast a way to load the world.
03:25We can now bring in more content more quickly for the smoothest possible experience as we fly down to catch up with Siri.
03:36Welcome to Valgrist.
03:48So Valgrist is a port town, a hub for fishing, freight and mining.
03:54It's one of those places where you can meet shady characters or overhear gossip from other lands.
03:59It's also where Cui took on her current contract.
04:02Hi-tech, let's leave Kelpie here and explore the marketplace and food.
04:11I'm so excited we can finally show you some of this stuff.
04:15Let's see what Valgrist has to offer.
04:16Ah, fuck that.
04:18Not Ireland.
04:19Guys, notice how responsive the world is.
04:46Character actions directly affect what happens around you.
04:51Sometimes even setting up chain reactions.
04:54Everything is working together.
05:04Or look at this poor gentleman being told how to fly by an angry innkeeper.
05:09That's what happens when you cheat at Gwen.
05:11Okay, so this is the guy who gave the series questions on.
05:30Like you probably suspect he has his own agenda in all of this.
05:33You're off your tits again, Wilfred.
05:37Get your ass up.
05:43A typical day's toil.
05:45Who in?
05:46Ah, witcheress.
05:49What news of my wagons?
05:51No eternity is taking to that damn salt to arrive.
05:54I found them.
05:56And, well, suffice to say, they'll not reach you.
06:00As for the salt, I found not one speck.
06:07I presume this comes as no surprise to you.
06:11No, no.
06:13Kvir's smuggling trade is of no concern to me.
06:16Shush, shush, shush.
06:17The manticore that flattened your cars and devoured your men?
06:22Quite the opposite.
06:26Manticore?
06:27No, no.
06:28Them winged hellspawn dwell in the arse end of Krayton.
06:32While Ciri decides what to do about that merchant,
06:35let's take a look at the character technology that powers this marketplace.
06:39Why don't we listen in on these fishmongers?
06:41They're selling their wares, chatting up customers.
