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Inside Unreal: In-depth look at PS5's Lumen in the land Of Nanite demo(only 6.14gb of geometry) and Deep dive into Nanite

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PaintTinJr

Member
Mid range was reaching yes. But compared to today's desktops it would be mid range.
Desktop?

What's the CPU got to do with it?

Nanite has very low cpu utilisation and works entirely in the fragment shader AFAIK from the info given.

Unless the nvme ssd or chipaet in that £1700 laptop is below the minimum level that Nanite's virtual geometry streaming needs (inspired by clipmap virtual texturing IIRC) then the gpu is still a top tier gpu for the task in question, no?
 
You have no clue. Editor mode doesn't have a lot of things on that are super taxing like post processing effects. Hence why at the end he shows you the portal but there's no effects applied. You can by all means turn things on and run them in editor mode. But the whole point of editor mode is to make changes and test. And how you would fully test any changes to see how they look and affect Frame rate, hitching, or any other effects is to play them out in realtime. Which means things get added depending on your setup/demo you have created with your assets. Certain scripts and what not do not run in editor mode until you want to look at them and run them in editor mode by activating them. If you were to activate everything you have setup to be applied and compiled for playout it add's significant stress to the system.

It's no different than programs like ADOBE, Divinci resolve ect. When your editing some 3d graphics it's not A. being fully rendered, B. any filters, extra textures, effects you have set to be applied are not being applied in realtime. That comes when you render it.

Which take lots of processing, memory on top of what is cached. When being compiled ever notice how your machine starts making more noise when doing a final render?
That is because everything is being applied that is in that scene, all the effects, animations, and transitions all together.
The same thing can be applied to programs like 3D STUDIO MAX, MAYA which I use to be proficient in, but also those are modeled just like Game engines. Maya was used a lot in PS1 days for CGI scenes for Final Fantasy among other titles.
Did you read any of the previous pages? Do you have even the slightest clue of how these engines in their editors work? I'm assuming that's a big fat no to both questions, as you literally skimmed past all the responses to disprove your irrational thought process on how these things work.

Here, I'll post a quote from about 24 hours ago.


Below will give you the answers you have been completely wrong about, and previous posts can catch you up to speed on how these things actually work. No need for ignorant guesses anymore, when ALL the facts are here.


People really need to just STOP... with the BS narratives..

epicownage.png


epicownage2.png


epicownage3.png


Andrew works on the UE5 team.....

-Reiterates that the Valley of the Ancients demo is actually MORE demanding than the PS5 demo
-Essentially states that the marketing fluff about "PS5's SSD being essential" was in comparison to last gen consoles and their HDDs...
 
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phil_t98

#SonyToo
I think a lot of people believed the marketing Bs that Sweeney said after the big pay out from sony that this was only possible because of the PS5 ssd
 
I think a lot of people believed the marketing Bs that Sweeney said after the big pay out from sony that this was only possible because of the PS5 ssd
I'd love to believe that, but based on several comments and posts from people here, that definitely wasn't the case. Now that they see the proof, and hear it from the horses mouth, they still deny it. These fanboys are so full of themselves. Probably talk to themselves in the mirror each chance they get.
 
Desktop?

What's the CPU got to do with it?

Nanite has very low cpu utilisation and works entirely in the fragment shader AFAIK from the info given.

Unless the nvme ssd or chipaet in that £1700 laptop is below the minimum level that Nanite's virtual geometry streaming needs (inspired by clipmap virtual texturing IIRC) then the gpu is still a top tier gpu for the task in question, no?
Didn't mention CPU. Not sure why you stated taking about it. The laptop in question was a 2080 max q. In the range of a 2060 super. So yes mid range compared to a desktop.
 

PaintTinJr

Member
Didn't mention CPU. Not sure why you stated taking about it. The laptop in question was a 2080 max q. In the range of a 2060 super. So yes mid range compared to a desktop.
Not interms of pixelrate and cache.

Both cards in context of nanite/lumen are top tier. Trust me, go look at all the pixel rates of cards and you will see that my first point about top tier being +100gigapixel/s at 1.5ghz is about right with regards to nanite.
 

Corndog

Banned
Over a year of potential Hype and back and forth down the toilet because of a salesman selling snake oil to Sony fans and them taking the words of Tim Sweeney as gospel.

Pouring one out for the poor chinese engineer at Epic, and undoubtedly the dozens of forum users who were probably banned for questioning the PS5 hype based on that video. Also pouring one out for all the Sony fans that are eating skip fulls of crow right now.

ANyone who stepped back and looked at it could see that it was not the PS5 IO driving that demo.

Everyone got fucked by this bullshit in some way or another. Good job Tim Sweeney!
I got thread banned over saying that epic was pushing billions of polygons on screen was PR. It was obviously untrue. They just had billions of source polygons.
 
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Papacheeks

Banned
First of all post process and game scripts were on.

secondly as I have said before...
Every thing you listed as reasons that PC can't run the demo. EXISTS in the valley of the ancient Demo. Infact more things exist there than the PS5 demo.
Teleportation, Attack Blast ability, explosion, drone flying mode, boss enemy.

1) Valley has physics
2) Valley needs only 3 GB Ram and 7 GB VRAM (I/O).
3) Valley has destruction,
4) Valley has Sound and music
5) Valley has VFX (the ancient ball is using the same Niagara particle system as the Portal)
6) Valley has different and dynamic lighting
7) Valley has walk, jump, attack, sit, drone flying
8) Valley has explosions which is more expensive

Even going with your warped logic, you still don't make sense.
Not only does the valley have all of this, but its actually more heavy in the valley demo (explosion uses translucency which is expensive).
Almost everything you listed runs on the CPU. The rest runs on the GPU. Which PC is vastly more powerful than the PS5 (chaos, lumen).

and none of it has anything to do with the only two new features in PS5, nanite and lumen.

Nanite is not affected my the destructions. Again you seem not to understand.
All the nanite data was 6.14 GB. Can you reply yes if you understand that?
Its already loaded. They don't load nanite data per frame, its already in the memory.

Chaos physics is a UE4 feature.


Niagara is a 3 years old feature that is very efficient.


The beetles and birds that you say makes the demo not to be able to run on the PC. The holy grail that you exhort is available on the UE4.26 content example for people to toy around with.
You should drag it into the Valley of the Ancient demo, If what you say is true. Then the demo should crash instantly because it doesn't recognize the PC as a PS5
Pj2cben.png


w8yQ27V.png


ox94lKP.png


Where did I say they could not run the demo? It's loaded on their PC, they just happen to be in edit mode. And your right on scrubbing once it's rendered, it is easier. But engines like Unreal, Unity are different in how they work in relative to using the Hardware as apposed to codec's, raw footage and filters etc seen in adobe.

No one including me is saying they can't run the demo, but running it and showing them playing it in realtime off of a pc are two different things. Have them literally take the demo that was on disc running in a PS5 and run it on PC and play it?

Thats what Im asking. SHowing edit mode is just that edit mode nothing is in play in realtime.

Show me that whole demo being played with a controller in realtime and I'll shutup. Nothing you said has debunked anything. All you have done is regurgitate a bunch of info. Your showing engine screenshots for godsake? How is that showing what Im asking for Epic to show me so we can see if the PS5 demo was just them blowing smoke with the customizations they talked about. Which Sony has paid for.

Unless it was under NDA which it seems it is.

Welcome to memory.

f738527529b87bdfe434061d2020ee2d.gif

Thats edit mode where you have a free camera to move around the scenes/assets you build.

Show it compiled into a literally playable demo they can boot up and control the character from 2020. Thats whats being compared and asked.
 
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Kenpachii

Member
Where did I say they could not run the demo? It's loaded on their PC, they just happen to be in edit mode. And your right on scrubbing once it's rendered, it is easier. But engines like Unreal, Unity are different in how they work in relative to using the Hardware as apposed to codec's, raw footage and filters etc seen in adobe.

No one including me is saying they can't run the demo, but running it and showing them playing it in realtime off of a pc are two different things. Have them literally take the demo that was on disc running in a PS5 and run it on PC and play it?

Thats what Im asking. SHowing edit mode is just that edit mode nothing is in play in realtime.

Show me that whole demo being played with a controller in realtime and I'll shutup. Nothing you said has debunked anything. All you have done is regurgitate a bunch of info. Your showing engine screenshots for godsake? How is that showing what Im asking for Epic to show me so we can see if the PS5 demo was just them blowing smoke with the customizations they talked about. Which Sony has paid for.

Unless it was under NDA which it seems it is.



Thats edit mode where you have a free camera to move around the scenes/assets you build.

Show it compiled into a literally playable demo they can boot up and control the character from 2020. Thats whats being compared and asked.

It doesn't matter if it releases. They will just say, they optimized it and downgraded it to run on PC or some other bullshit that floats there boat.

Look i could easily tell them, PS5 couldn't even run the demo that PC has at any stable framerate, because there is zero proof of it running on that box. There is nothing they can do to disprove it. And anything anybody says i just say "proof it" and discussion is dead instantly.

I could also say, the whole video u saw last year on ps5 was prerendered or done on a PC but just stated as "ps5" by tim for marketing reasons. Nothing tim will do or can do to disprove it. Because nobody has access towards the demo on the PS5 to start with and if they make it, and 1 rock is different places, u could easily say look different demo.

Even when tim says for example, that xbox will also run it perfectly fine. it's still but but PS5.

The reality however is, PC runs the data, PS5 does not. And it rubs some people the wrong way to the point they have to come up with all kinds of logic to keep there insanity intact.
 
Where did I say they could not run the demo? It's loaded on their PC, they just happen to be in edit mode. And your right on scrubbing once it's rendered, it is easier. But engines like Unreal, Unity are different in how they work in relative to using the Hardware as apposed to codec's, raw footage and filters etc seen in adobe.

No one including me is saying they can't run the demo, but running it and showing them playing it in realtime off of a pc are two different things. Have them literally take the demo that was on disc running in a PS5 and run it on PC and play it?

Thats what Im asking. SHowing edit mode is just that edit mode nothing is in play in realtime.

Show me that whole demo being played with a controller in realtime and I'll shutup. Nothing you said has debunked anything. All you have done is regurgitate a bunch of info. Your showing engine screenshots for godsake? How is that showing what Im asking for Epic to show me so we can see if the PS5 demo was just them blowing smoke with the customizations they talked about. Which Sony has paid for.

Unless it was under NDA which it seems it is.



Thats edit mode where you have a free camera to move around the scenes/assets you build.

Show it compiled into a literally playable demo they can boot up and control the character from 2020. Thats whats being compared and asked.
Did you see anyone controlling the character in the 2020 demo?
 

mitchman

Gold Member
Lumen in the land of nanite is what he completely loaded into RAM, so that specific demo will run better on a PC.
Valley of the ancient demo specifically shows how Unreal Engine 5 is super efficient at streaming since the data isnt that large a PCIE4 SSD isnt actually needed to load in and out data.
Valley of the Ancient was used to show off how you could use Unreal Engine to make open world games that can stream in millions of polygons.
Test the demo yourself and see.

P.S We already have SSDs that catchup(read as trump) the PS5 SSD.

  • PS5 SSD IO — 5,500MB/s reads, 5,500MB/s writes
  • PNY XLR8 CS3140 —7,500MB/s reads, 6,850MB/s writes
  • Adata XPG Gammix S70 —7,400MB/s reads, 6,400MB/s writes
  • Mushkin Gamma — 7,175MB/s reads, 6,800MB/s writes
  • Sabrent Rocket 4 Plus — 7,100MB/s reads, 6000MB/s writes
  • Samsung 980 Pro — 7,000MB/s reads, 5,000MB/s writes
  • WD SN850 Black — 7,000MB/s reads, 5,300MB/s writes

And before you come at me with the whole "compressed speed" thats not relevant right now.
What is relevant is the massive overhead on the driver level on PC and having to copy the textures to the gfx card, which has been talked about by Cormack and Sweeney before, which PS5 has pretty much eliminated. Do you claim to have knowledge about PC architecture they do not have?
 
Did you see anyone controlling the character in the 2020 demo?
Or a ps5 or ps5 controller. We might as well ask Papacheeks Papacheeks for his proof! The only real indication of any platform running, was when they showed PC running the editor. Everything else could have just been controller mapping or prerendered footage, yet we should just believe what they said, right?


Anyone can push this anyway they want, but at the end of the day, "PC" doesn't have a "marketing deal" with Epic, so there's no reason for them to clarify or clear up the often made, misconception that ps5 is the only hardware capable of running this demo.


It's just sad that some people still have to push forth the frontline battles, to try and secure any "win" or "gotcha", they can conceive. Even though all of the bullshit has been disproven for several pages for now.
 

Papacheeks

Banned
It doesn't matter if it releases. They will just say, they optimized it and downgraded it to run on PC or some other bullshit that floats there boat.

Look i could easily tell them, PS5 couldn't even run the demo that PC has at any stable framerate, because there is zero proof of it running on that box. There is nothing they can do to disprove it. And anything anybody says i just say "proof it" and discussion is dead instantly.

I could also say, the whole video u saw last year on ps5 was prerendered or done on a PC but just stated as "ps5" by tim for marketing reasons. Nothing tim will do or can do to disprove it. Because nobody has access towards the demo on the PS5 to start with and if they make it, and 1 rock is different places, u could easily say look different demo.

Even when tim says for example, that xbox will also run it perfectly fine. it's still but but PS5.

The reality however is, PC runs the data, PS5 does not. And it rubs some people the wrong way to the point they have to come up with all kinds of logic to keep there insanity intact.

Who is in here disputing that PC doesn't run the data? I never said in any response that it doesnt obviously it was built on a PC. The demo we saw last year was a customized early release of their engine that wasn't even finished yet to my knowledge. But they made customizations because of partnership with SOny and their investment.

The demo is running on PC as it was built on. But what we are asking for is them showing us it running in realtime being played with a controller.

How is that hard to replicate? Unless like I said they are under some form of NDA in showing it exactly like it was shown for PS5.
 
Or a ps5 or ps5 controller. We might as well ask Papacheeks Papacheeks for his proof! The only real indication of any platform running, was when they showed PC running the editor. Everything else could have just been controller mapping or prerendered footage, yet we should just believe what they said, right?


Anyone can push this anyway they want, but at the end of the day, "PC" doesn't have a "marketing deal" with Epic, so there's no reason for them to clarify or clear up the often made, misconception that ps5 is the only hardware capable of running this demo.


It's just sad that some people still have to push forth the frontline battles, to try and secure any "win" or "gotcha", they can conceive. Even though all of the bullshit has been disproven for several pages for now.
I'm happy you picked up that it was about the double standard of proof.
 
Who is in here disputing that PC doesn't run the data? I never said in any response that it doesnt obviously it was built on a PC. The demo we saw last year was a customized early release of their engine that wasn't even finished yet to my knowledge. But they made customizations because of partnership with SOny and their investment.

The demo is running on PC as it was built on. But what we are asking for is them showing us it running in realtime being played with a controller.

How is that hard to replicate? Unless like I said they are under some form of NDA in showing it exactly like it was shown for PS5.
There's no need for them to replicate that... because they've already shown off something MORE taxing.

Are you EVER going to get that through your head?


Let me ask you another thing... where is your proof that it was EVER running on a PS5 to begin with?

Epic told you it was right? You believe them, right?

Epic ALSO said, and proved in a more demanding state, that it runs on PC as well...they did that specifically because Sony fans had the misconception that their SSD somehow made it only possible on PS5... At this point... continuing to be unconvinced is just willful ignorance.
 
I'm happy you picked up that it was about the double standard of proof.
In my head I'm just wondering...
"Show us this demo running on PC, not in editor mode, and with a controller!"


What if they show it running with a ps5 controller, with ps5 controller prompts on the screen, but running on a PC.

Would there be an issue then?

What if that's what happened last year? Hmmm

What if they used a m&kb, instead of a controller, would that still be valid?
 

Papacheeks

Banned
There's no need for them to replicate that... because they've already shown off something MORE taxing.

Are you EVER going to get that through your head?


Let me ask you another thing... where is your proof that it was EVER running on a PS5 to begin with?

Epic told you it was right? You believe them, right?

Epic ALSO said, and proved in a more demanding state, that it runs on PC as well...they did that specifically because Sony fans had the misconception that their SSD somehow made it only possible on PS5... At this point... continuing to be unconvinced is just willful ignorance.

Running it in edit mode with free form camera is not the same as a full on compiled demo being played out.
 
Running it in edit mode with free form camera is not the same as a full on compiled demo being played out.
In case you didn't get it the millionth time. It's much more taxing and performance heavy with the editor running the demo. Please can we not have to repeat what's been said a billion times already? You must be trolling at this point if you still can't get it. I've even quoted the devs comments to reiterate on how wrong you were.


It's ok to be wrong. Take the L in stride and move on. No point in beating a dead horse or trying to disprove the guys who made the engine. As it just won't happen.
 
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Papacheeks

Banned
I know...It's more taxing.

In it's specific load yes because your camera can move around and everything is just there loaded in memory. I want them to show me the demo being played period.

Why would they highlight in 2020 that demo specifically with the ssd?

I know how engines work, how they are made and how they run.
I know they all are made via PC, because there's no limit in hardware. Right now the limit is NVME, I/O and direct storage not being available still with GPU.

They are running this all through tons of memory if my memory serves me right correct?
So in how it's being run on a PC in edit mode, is not the same as a specific set of hardware with a unique I/O setup currently with Ratchet doing things that can't be done "yet" on other platforms. Unless their wording specifically in the 2020 was off, they were specific in talking about the I/O.

Thats what I want to see on PC.
They have not shown that period. All they have shown is nothing new in terms of having a insane workstation like we have here at our newsstation that loads all our live rendered graphics into the vram then into the SDI bus card for playout.
 
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In it's specific load yes because your camera can move around and everything is just there loaded in memory. I want them to show me the demo being played period.

Why would they highlight in 2020 that demo specifically with the ssd?

I know how engines work, how they are made and how they run.

I know they all are made via PC, because there's no limit in hardware. Right now the limit is NVME, I/O and direct storage not being available still with GPU.

They are running this all through tons of memory if my memory serves me right correct?

So in how it's being run on a PC in edit mode, is not the same as a specific set of hardware with a unique I/O setup currently with Ratchet doing things that can't be done "yet" on other platforms. Unless their wording specifically in the 2020 was off, they were specific in talking about the I/O.

Thats what I want to see on PC.

They have not shown that period. All they have shown is nothing new in terms of having a insane workstation like we have here that loads all our live rendered graphics into the vram then into the SDI bus card for playout.
Well it's clear you choose to remain ignorant.

I'd also like to see them running the demo on a retail PS5... because nothing has proven to me that they ever have...

Right? I mean, since we're requesting proof and not taking them at their word...
 

Papacheeks

Banned
Well it's clear you choose to remain ignorant.

I'd also like to see them running the demo on a retail PS5... because nothing has proven to me that they ever have...

Right? I mean, since we're requesting proof and not taking them at their word...



Literally see dual sense, playstation button prompts all over in the demo. So unless they are faking it, it's running on PS5. You can't fake currently Dual sense on PC. Support isn't live yet for PC. And I doubt it was when they filmed this in March of 2020.
 
In it's specific load yes because your camera can move around and everything is just there loaded in memory. I want them to show me the demo being played period.

Why would they highlight in 2020 that demo specifically with the ssd?

I know how engines work, how they are made and how they run.

I know they all are made via PC, because there's no limit in hardware. Right now the limit is NVME, I/O and direct storage not being available still with GPU.

They are running this all through tons of memory if my memory serves me right correct?

So in how it's being run on a PC in edit mode, is not the same as a specific set of hardware with a unique I/O setup currently with Ratchet doing things that can't be done "yet" on other platforms. Unless their wording specifically in the 2020 was off, they were specific in talking about the I/O.

Thats what I want to see on PC.

They have not shown that period. All they have shown is nothing new in terms of having a insane workstation like we have here that loads all our live rendered graphics into the vram then into the SDI bus card for playout.
Got any proof?


Epic said they ps5 i/o is impressive, COMPARED to is slower old HDD tech in previous console.



Who said R&C can't be done on PC? You got any PROOF of that Papacheeks Papacheeks ?




ilM9WHk.jpg
 


Literally see dual sense, playstation button prompts all over in the demo. So unless they are faking it, it's running on PS5. You can't fake currently Dual sense on PC. Support isn't live yet for PC. And I doubt it was when they filmed this in March of 2020.

I can change my controller input from Xbox to PlayStation buttons on Days Gone, while not owning a PlayStation controller. Not hard to do.
 
So in how it's being run on a PC in edit mode, is not the same as a specific set of hardware with a unique I/O setup currently with Ratchet doing things that can't be done "yet" on other platforms. Unless their wording specifically in the 2020 was off, they were specific in talking about the I/O.

Thats what I want to see on PC.
They have not shown that period. All they have shown is nothing new in terms of having a insane workstation like we have here at our newsstation that loads all our live rendered graphics into the vram then into the SDI bus card for playout.
Show me Insomniac trying to run Ratchet on different hardware and failing. Until you show me it not working, I won't believe it can't.


Literally see dual sense, playstation button prompts all over in the demo. So unless they are faking it, it's running on PS5. You can't fake currently Dual sense on PC. Support isn't live yet for PC. And I doubt it was when they filmed this in March of 2020.

You know they put those button prompts in eh. Like they don't just show up when you run a game on ps5.
I never doubt EA gameplay and audio/sound quality, they are there in the very top in the industry. Actually growing up there were my best studio since SEGA MegaDrive.
I've never been huge on battlefield but they always get my attention.
 

Papacheeks

Banned
Got any proof?


Epic said they ps5 i/o is impressive, COMPARED to is slower old HDD tech in previous console.



Who said R&C can't be done on PC? You got any PROOF of that Papacheeks Papacheeks ?




ilM9WHk.jpg

Basically everyone who's actually reviewed the game including Digital Foundry. But mainly talking about compared to PS4 currently but right now Direct storage isn't available.

 
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Kenpachii

Member
Who is in here disputing that PC doesn't run the data? I never said in any response that it doesnt obviously it was built on a PC. The demo we saw last year was a customized early release of their engine that wasn't even finished yet to my knowledge. But they made customizations because of partnership with SOny and their investment.

The demo is running on PC as it was built on. But what we are asking for is them showing us it running in realtime being played with a controller.

How is that hard to replicate? Unless like I said they are under some form of NDA in showing it exactly like it was shown for PS5.

I was talking towards the community's in general.

Who knows why tim does things. could very well be that the engine couldn't even handle the tech demo in any playable stage. Could very well be the whole demo was bullshit as he avoided any technical question like the plague.

All we know the demo is nowhere to be played. And he doesn't care about releasing it. So its safe to say at this point it might as well not exist.
 

ZywyPL

Banned
The usual suspects are still in denial. There is apparently no limit to fanboyism :messenger_beaming:

The SSD fanatics are just like flat earthers, they just went too damn far to admit they were wrong all along and were only making fools of themselves, the only way now is to fake denial and keep pushing the agenda even harder. Sweeney made a clown of himself but at least he got a really, really fat check for it, and here the guys are going full retard for free. Or maybe they are on a payroll as well, I don't know.
 

martino

Member
Show me Insomniac trying to run Ratchet on different hardware and failing. Until you show me it not working, I won't believe it can't.
All we know the demo is nowhere to be played. And he doesn't care about releasing it. So its safe to say at this point it might as well not exist.
that's called making someone eat its own medecine.
but you can be better and not reach the same level of intellectual dishonesty. there is no need for that here.
 
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Kenpachii

Member
that's called making someone eat its own medecine.
but you can be better and not reach the same level of intellectual dishonesty. there is no need for that here.

The moment i spended some time on forums, i see a lot of these things. I believe nothing until its served.


xbox-one-crashed.jpg


I could link far more, ubisoft games, cdpr games, hell even sony does it etc etc.
 
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PaintTinJr

Member
In case you didn't get it the millionth time. It's much more taxing and performance heavy with the editor running the demo. Please can we not have to repeat what's been said a billion times already? You must be trolling at this point if you still can't get it. I've even quoted the devs comments to reiterate on how wrong you were.


It's ok to be wrong. Take the L in stride and move on. No point in beating a dead horse or trying to disprove the guys who made the engine. As it just won't happen.
The exact wording is "the performance in the editor is lower than a shipping build" which we actually get a visual example of in the video.

Remembering back to Brian talking about the transitions between nanite clusters, he does say that we might see the changes while he's moving the camera in the editor- which we see in the stream that the cluster sizes get larger temporarily where IQ would be dropping temporarily - either because the best data isn't in the nanite world data "clipmap" on time - for want of a better word - or the GPU running nanite can't keep up with the rate of change.

I'm fuzzy on the details, now but it was mentioned that some aspects of the rendering only replace the changes from the previous frame, so that example of late clusters might have been illustrating a difference of rendering cost for a nanite "keyframe" - that can exceed a GPU's performance - but doesn't exceed the rendering cost of a nanite "intermediate frame".

Personally, I think it is more likely to be IO related, that Brain's work from home PC was able to demonstrate clusters arriving late, but I'm sure someone like VFXVeteran could probably replicate something similar on the released UE5 demo and work out if it is IO or lack of pixelrate that causes that scenario of lower performance in the editor.
 

PaintTinJr

Member
There's no need for them to replicate that... because they've already shown off something MORE taxing.
I might be remembering this incorrectly, but I thought that the more taxing part is just related to nanite, and the Epic team was just showing very obtuse angles of quixel scan overlap where overdraw is a potential performance issue, unless further artistic care is taken to either simplify or cull, they were also showing an angle to illustrate nanite's prowess at detailed floor geometry beyond the foreground without the need of very expensive AF.

AFAIK the lumen work in the first demo is more taxing because with many things at close proximity, more rays hit more objects - statistically that's what I would expect - and there is more shinny surfaces, so the rays continue to propagate for longer.

Edit:
obviously the small amount of overdraw pixels in the desert demo will cost lumen as much as 3 or 4 times a normal pixel, but given the more open space, I'd still guess lumen does a lot more work in the first demo warrior graveyard.
 
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IntentionalPun

Ask me about my wife's perfect butthole
ANy finalized, post processing effects, game scripts usually when your building the game which is in edit mode are not on to conserve processing. The last part of your response is where we disagree, though the engine itself, assets, and demo were created on the engine with a PC.

The specific customizations made for PS5's I/O and ssd are specific to that set of hardware. And if it wasn't then I would assume we would see them playing the same demo with a controller instead of in the raw engine edit mode which does not apply game scripts, post processing effects chosen for said demo, on top of a character with active animations, button commands and interactions.

Until they show it being actually played on PC in realtime with a controller the exact thing we saw running on PS5 in realtime which means they had someone hitting the prompts for the character through the demo. Until they show me that, what they currently are showing is just basically the engine with the demo assets.

Which is not 1:1 the same environment at all.

The dude used the engine to show off features he couldn't playing the demo outright.. your assumption is silly, the video is for developers, not console warriors... and he was ADAMANT about the fact that specifically the idea that high I/O requirements would be needed was totally false. The devs have even further expounded on that on forums and twitter.

What you are saying makes zero sense anyways.. a PC can run circles around a PS5 for post processing effects, scripts.. and really everything but I/O (until DirectStorage API and GPU decompression arrive).. on what planet would those effects be what the PS5 outdoes a PC on?
 
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Papacheeks

Banned
The dude used the engine to show off features he couldn't playing the demo outright.. your assumption is silly, the video is for developers, not console warriors... and he was ADAMANT about the fact that specifically the idea that high I/O requirements would be needed was totally false. The devs have even further expounded on that on forums and twitter.

What you are saying makes zero sense anyways.. a PC can run circles around a PS5 for post processing effects, scripts.. and really everything but I/O (until DirectStorage API and GPU decompression arrive).. on what planet would those effects be what the PS5 outdoes a PC on?

Go re-read what I said. In any of my responses did I say pc isn't first the main development platform for engine development, or second that pc doesn't run circles around ps5.

What of can't do currently is use a NVME with direct storage API in unreal 5. It's probably coded already in the engine, but literally isn't out yet.
So I specifically in all of my responses mention the I/O IN relation to the end part of the 2020 u5 demo. This current dev video is him in edit mode with a free camera showing everything loaded in memory.

As in he is not playing a compiled in play demo in real time with assets set to 8k in relation to end part of the demo which was very specific in their description in older video.

And I believe why they can't show playing it is nda.

Money is involved between Sony and U5 and certain customization must have been made a year ago if direct storage API was not available correct?

That's what I'm asking. I never once said it could not be run, I am talking about playing the same demo all the way through with current setup to compare the 2.

All this shows is them in edit mode of said demo having it all loaded in a insane PC setup.
 
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