ue5-engine-source

[rancid kelp]

“TSR is a new lower resolution single-frame scaling technique to maximize performance and visual fidelity. AMD has worked closely with Epic to optimize Temporal Super Resolution features on Radeon-powered systems. TSR, a standard feature from Unreal Engine 5, it is enabled for all GPUs and provides next-generation scaling not only on PC, but also on PlayStation 5 and Xbox Series X / S. “

I worded my sentence wrong.

Oh i agree with you 100% like i said bad choice of wording

[strong agate]

FSR in some cases is better than TSR, specially in VR.

And FSR can work on more limited hardware, even mobile, TSR IIRC is gen 5 gpu's only

[rancid kelp]

I can fix floats to a double, but trying to update that plugin to ue5 is way to advanced for me. I do not even understand half of those errors xD

[opaque phoenix]

wait FSR could work on quest 2? That could be something useful for the team

[strong agate]

I already made CAS work in a Quest, so it should be totally possible

[opaque phoenix]

I wanna know more about this

[rancid kelp]

You can get the plugin here: but it only works up to 4.27

https://www.unrealengine.com/marketplace/en-US/product/fidelityfx-super-resolution

[opaque phoenix]

we use quest 2 and aliasing is a headache

[opaque phoenix]

we use 4.26 so worth a shot

[strong agate]

However I would use this optimized version: https://gist.github.com/atyuwen/78d6e810e6d0f7fd4aa6207d416f2eeb

[opaque phoenix]

is this production ready?

[strong agate]

It's just an modified shader optimized to run faster on mobile. You're going to need to replace the default one from the plugin or the patch

[torpid valve]

TSR is made specifically for unreal to complement unreal features like Lumen. The Temporal is key here

that's being said VR is second category citizen in Unreal

[strong agate]

Yes I'm well aware of that, however in it's current state it's for next gen hardware only

I hope with PSVR2 and Cambria Unreal will receive better VR support

[torpid valve]

if you want to make VR games

i do recommend unity

like serisouly

the same goes for mobile

in UE it will be always uphill battle

[strong agate]

I was going to switch to Unity, they brag a lot of their HDRP having first class VR support, and with CTAA you can have really good results, until I saw that they recently disabled instanced stereo in HDRP and you instantly lose 30% performance 🙃

Classic Unity move

[torpid valve]

that's prolly still miles better than Unreal : P

[strong agate]

I prefer to bite the bullet using Unreal rather than having to deal with unity bs

Unity's OpenXR was a mess until very recently

[latent iris]

Unreal's VR might do leaps if Fortnite ever goes VR and has some success 🤣

[opaque phoenix]

unlike Unity I do not have to reinvent the wheel esp with subsystems and all. Plus I get paid well cuz Unreal devs are rare where I come from.

[echo ravine]

If we're honest, unity is likely miles ahead still on anything 2D/mobile-ad-powered/VR

Doesn't even need to be good at it

Unreal isn't really targeting those

[lofty idol]

Not sure what gen 5 gpu means in this context, but FSR doesn't work on anything below 10xx series for nvidia, while TSR even works on 2nd gen maxwell 970.

[rare owl]

I was getting those too and was still able to run the editor. I'm not using 3DSMax or SketchUp in my project though, I locally removed /Enterprise/Datasmith so it wouldn't keep attempting to recompile.

[lofty bear]

Oh, nice! Thanks, I haven't had time to look into it or trying anything. I'll definitely try to open it before I start looking into the error. I'm not using 3DSMax or SketchUp either.

[strong agate]

It's different, AMD doesn't officially offer support to GPUs below RX 4xx and Nvidia 10xx series. However it's operating method is so simple it can work anywhere. Nintendo Switch and Steam Deck are already utilizing it per example. TSR in the other hand is a very complex algorithm, and the shader has been optimized for new gen only. So if you're going to try to run it in limited hardware you will need to optimise it.

[lofty idol]

Minimum requirements for nanite is 2nd gen maxwell. That's barely current gen, and it is supported. I would assume same thing would happen with TSR. This isn't news, because Fortnite obviously has to work on previous gen systems. If you said, say, Lumen, I'd agree. But TSR is fast even on a 970.

In any case, one is officially supported (unless epic decides to draw an arbitrary line in the sand for ue5 release) and the other is not.

[paper hound]

Look @lofty idol

[paper hound]

😄 sorry haha

what's going on with TArray??

[paper hound]

can you send me a private message to talk about it?

[hollow orbit]

Hey, question about the new IO Store packaging, are we forced to use it with UE5?

Game won't run unless I package it with the IO store enabled for some reason

[torpid valve]

so just use it ?

[hollow orbit]

It breaks some of our internal tools

[lofty bear]

Is there a way to limit the platform support and other "plugins"/stuff (like Datasmith and ZenDashboard) when building from source?

[static copper]

1. run setup.bat with the platforms omitted

2. build from your game project

you can edit .uplugins to be disabled by default too

[lofty bear]

Oh.. And if I didn't pass any arguments to setup.bat when I ran it yesterday, I can do it now? Or do I have to delete everything first?

[limpid light]

Setup.bat you run without arguments. You need to have a game project associated with the engine (easiest to have in the same directory structure) and when you build that project it only builds the parts of the engine your project is actually using.

[radiant pewter]

I want to switch to physx in ue5, for me chaos is a joke, help

[lofty idol]

I think chaos will be better in the future

[echo ravine]

At this stage it might make more sense to investigate how to tweak Chaos for improved quality and performance, since PhysX will be going away long term

[strong agate]

I don't think PhysX can be enabled again after double support

[lofty idol]

are you having problems with ragdolls in ue5?

[limpid light]

Just accept PhysX is going away and learn how to work with Chaos

[lofty idol]

auf

chaos just doesn't work correctly

[echo ravine]

Was kinda hoping it would be going better on 5.0 branch these days

[echo ravine]

Clearly working as intended 🥲

[strong agate]

From my experience using the source branch in VR, Chaos just need good default values now, aside from performance which I didn't test it yet.

[strong agate]

LucenDev did a great breakdown of current Chaos: #ue5-engine-source message

[kind root]

Hello Guys Can i upgrade plugin from 4.27 to 5.0 Source code ?

I havent tried to build the plugin with engine but making sure

[limpid light]

Jagshemash! Usually it's easy, just need to recompile it. There might be broken references to things that have moved or changed in the engine, and you need to have enough knowledge to fix that on your own.

[kind root]

i can try xP i know how things work so i hope i can figure it

[limpid light]

Good luck! Also check out the .uplugin file, if it has an engine version there just remove the line

[kind root]

ok awesome thanks i will bother you again guys if i couldnt solve xD

[lofty bear]

A plugin I use is attempting to pass an FVector2D to a variable that in UE5 has been changed to the type FVector2f. I thought I'd inspect this new data type, but its declaration is a mystery to me, (Vector2,, FVector2D) (two commas?).
Is there anywhere I can read more on how these LWC types work? I assume that the lower-caps f in FVector2f indicates that it's a 32 bit float, and that an FVector2d would be 64bit double, but I'd like to read up on it..

[lofty bear]

Oh cool, thanks!

Oh shit, so FVector2D still exists, alongside FVector2d, and they both use double? And we'll have to change to FVector2f for floats? Wouldn't it be more practical of them to just remove 2D entirely, since the naming of D(Dimension?) has changed meaning?.. I am confused.

[limpid light]

There is a template TVector2 that you can use to make a version with a float, double or whatever you want. FVector2f and 2d are indeed just typedef shortcuts

typedef UE::Math::TVector2<float> FVector2f;
typedef UE::Math::TVector2<double> FVector2d;

FVector2D and FVector2d are not the same thing btw

yeah the naming is very confusing, I agree with that

FVector2D wont be removed, they would break a lot of code

There is also a TVector4 template, and TVector for the normal 3 value ones.

[lofty bear]

What is the difference then?

[limpid light]

ah in the older version I have, FVector2D is still its own type. I'm about to upgrade to latest source in the next week or so 🙂

No difference, but FVector2D is left there for compatibility reasons then

[lofty bear]

My point is that it should be removed because it should break a lot of code, when they have changed it from float to double. Without breaking code, a lot of code could be using double when it should be using float?

[limpid light]

true, but I guess they did a guesstimate and figured that would be the most common case. I myself have plenty of code I'll have to change to FVector2f

ahh value defaults and compilers..

there was a case of confusion recently, where 1 or was it 1.0 actually evals to double?

I'm usually explicit and do 1.0f 🙂

[lofty bear]

god fucking damnit, I guess I'll be back in three hours

I know I know. I was careful at first, but then we started talking about it again, and I wanted to screenshot that FVector2D was the same as FVector2d, and I forgot.

I know some of these words

well, I guess I have nothing better to do

[solid cypress]

5.0 is receiving almost no changes these days 🕵️

[echo ravine]

That'd be great news

Means it's close to release

[static copper]

I'm addicted to engine commits now

I'm going to be compiling main versions until I get burned

[ashen kiln]

Yes, I'm expecting first preview release soon.

[autumn axle]

can't wait

[karmic gazelle]

This error was fixed by https://github.com/EpicGames/UnrealEngine/commit/07493b29bd3344e92d24ac6bb2a71d85a1c1ef13. It had declared its own overload of MakeArrayView that was sometimes ending up in the same unity file as the call that triggered the compile error.

[thin tree]

lol, what are you smoking - release staging branch got an updated 15 hrs ago

[solid cypress]

is that branch relevant for 5.0? I was looking at 5.0 in both git and p4.

[thin tree]

that's the branch where 5.0 release comes from afaik

[solid cypress]

release comes from this https://github.com/EpicGames/UnrealEngine/commits/5.

[thin tree]

said who ?

[echo ravine]

Read the pinned posts

#ue5-engine-source message

[solid cypress]

said Epic in pinned posts

[limpid light]

no its not 😛

[thin tree]

release-staging stuff goes into 5.0 when it's ready, unless they specifically changed how things were, for 5.0

[solid cypress]

Is not it for staging changes which go into main, not into 5.0?

[thin tree]

main is not for release

I am not Epic though, so I don't know what's going on in their github these days 😛

[solid cypress]

I am not saying it is, I am saying is that we are under the impression that staging branches are for merging stuff from other branches into main

#ue5-engine-source message

#ue5-engine-source message

[limpid light]

Epic has a lot of branches that dont go on Github, and are only in their Perforce

[solid cypress]

not for merging into 5.0, as you said

[thin tree]

and I am saying prior to UE5, release-staging branch had stuff prepped for release

[solid cypress]

therefore activity in staging branch has no impact on 5.0 branch as it is stuff for 5.1

[thin tree]

can you show me commmit in the release-staging branch indicating it was upped to 5.1 ?

[solid cypress]

No, but I can show you engine version of ue5-release-engine-staging

https://github.com/EpicGames/UnrealEngine/blob/ue5-release-engine-staging/Engine/Source/Runtime/Launch/Resources/Version.h

#define ENGINE_MAJOR_VERSION    5
#define ENGINE_MINOR_VERSION    1
#define ENGINE_PATCH_VERSION    0

While 5.0 branch has

https://github.com/EpicGames/UnrealEngine/blob/5.0/Engine/Source/Runtime/Launch/Resources/Version.h

#define ENGINE_MAJOR_VERSION    5
#define ENGINE_MINOR_VERSION    0
#define ENGINE_PATCH_VERSION    0

[thin tree]

🤷‍♂️

then maybe it's different these days

hopefully they release it by March

[limpid light]

Im not sure what your point is? 5.0 is the branch that will be released from, Epic themselves have said so here on this Discord more than once

[thin tree]

no point @limpid light

but, when is CCP going back into VR dev ? 😏

[limpid light]

I dunno, I left them what 4 years ago 😄

When they shut down all VR development 😦

Since then I've been at Wargaming, an indie studio and now founded my own game studio 🙂

[thin tree]

ah, noice. Congrats!

[limpid light]

thanks 🙂 exciting and scary all at once 😂

[astral ore]

Anyone tried texture painting in the latest github build?

[torpid valve]

@lofty idol
https://github.com/EpicGames/UnrealEngine/commit/88eb85837e3a0efaaa4f745a65bdce34e17262f4

[hazy moat]

Anyone knows is 5346eb1 aka latest 5.0 building works? vs2019. Commits from day ago it was broken for me. Thanks.

[radiant pewter]

will this work? "TargetRules.cs

for physx

[torpid valve]

no

just

learn to live with Chaos

the engine moved fully double

and physx will straight not work with it

[radiant pewter]

easier to die than live with chaos, bugs and lags, virus physics engine👹

[spring ocean]

if it works, compile/use chaos to false and compile physx to true

[solid cypress]

as soon as there is a preview/release I would suggest you to precisely report all of them. That is probably best you can do now.

[hearty knot]

xD

[karmic gazelle]

Changes in release-staging can go into 5.0, but don't always. Development for 5.0 is primarily in the 5.0 branch.

[lofty bear]

It happened again (full recompile), and this time I definitely didn't edit any engine code..
So I looked into Installed Builds, running RunUAT.bat BuildGraph -target="Make Installed Build Win64" -script=Engine/Build/InstalledEngineBuild.xml -set:HostPlatformOnly=true, and it compiled for a little more than an hour, then:

UnrealEditor-FractureEditor.lib
   Creating library ..\Plugins\Experimental\ChaosEditor\Intermediate\Build\Win64\UnrealEditor\Development\FractureEditor\UnrealEditor-FractureEditor.lib and object ..\Plugins\Experimental\ChaosEditor\Intermediate\Build\Win64\UnrealEditor\Development\FractureEditor\UnrealEditor-FractureEditor.exp
BUILD FAILED:  failed, retries not enabled:
AutomationTool executed for 1h 15m 45s
AutomationTool exiting with ExitCode=1 (Error_Unknown)
Updating environment variables set by a Turnkey sub-process
Systemet finner ikke angitt bane. {translated from Norwegian: "System can't find provided path"}

😦

[inland kelp]

I'm hesitant to ask this because I have a feeling I know the answer is "rebuild from source with other options", but here goes:

I'm running UE5 with a project migrated from UE4. Project has a Server target file which works totally fine with UE4. Selecting Platforms in UE5 does not bring up any option to package a windows server (or the target selection area for that matter), only a client. Does something need to be done here for this to recognize the server target, or did I simply miss a build option for UE5 source build? Do you even need a source build still in UE5 to build a dedicated server?

[radiant pewter]

visual studio gives errors when compile ue5.0 physx, has anyone here ever compiled ue5.0 with physx?

[gilded pecan]

Consider using https://github.com/ryanjon2040/Unreal-Binary-Builder if the CMD scares you.

[tough siren]

Severity Code Description Project File Line Suppression State
Error C2660 'UE::DerivedData::MakeArrayView': function does not take 2 arguments UE5 C:\UE5Source\UnrealEngine-5.0\Engine\Source\Developer\DerivedDataCache\Private\DerivedDataCacheStoreHierarchy.cpp 740
Error C2672 'Invoke': no matching overloaded function found UE5 C:\UE5Source\UnrealEngine-5.0\Engine\Source\Developer\DerivedDataCache\Private\DerivedDataCacheStoreHierarchy.cpp 740
Error C2893 Failed to specialize function template 'unknown-type Invoke(FuncType &&,ArgTypes &&...)' UE5 C:\UE5Source\UnrealEngine-5.0\Engine\Source\Developer\DerivedDataCache\Private\DerivedDataCacheStoreHierarchy.cpp 740
Error MSB3073 The command "....\Build\BatchFiles\Build.bat -Target="UnrealEditor Win64 Development" -Target="ShaderCompileWorker Win64 Development -Quiet" -WaitMutex -FromMsBuild" exited with code 6.
UE5 C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.MakeFile.Targets 45

whyyyyyyy

[desert parrot]

Which branch should i use for my jenkins server?

[crimson granite]

Anyone still getting a lot of crashes on DX12 and RTX 3000 series cards?

[desert parrot]

Tons

[worthy herald]

Hey, anyone know why since several weeks the newer UE5 versions from main branch won't compile?

[lofty bear]

The engine decided to recompile again. I looked into installed builds, but got error when following the guide. Also tried out the binary builder you linked, and clicked "start", and it failed after a few seconds saying some Microsoft error "multiple projects cannot be selected" or something..
Guess I'm just gonna wait for the next official release of UE5..

[lofty idol]

chaos = virus

[ashen kiln]

Chaos is doing pretty well in latest state of 5.0 though.

[static copper]

yeah it's not amazing but hardly malware lol

what

It's still overall a downgrade for some usecases unless something changed in the past few months though, I'll give you that

[worthy herald]

If the engine would compile 😄

[cedar tree]

wtf are people saying chaos is a virus? xD

[autumn axle]

I thought they weren't deprecating removing support for Physx until at least 5.1 last I heard?

[gilded pecan]

They had an on/off switch for LWC until recently but that didn't really pan out. PhysX doesn't have support for doubles/LWC.

Also, Chaos got a bunch of fixes yesterday. - https://github.com/EpicGames/UnrealEngine/commit/6c791ff4954c05c11f25848bd7be64c8e42f3843

The Chaos Cloth solver is better than Nvidia's at this point, so that's a good thing.

[static copper]

nice. good to hear some of it was worthwhite

10% across the board is awesome too

[torpid valve]

PhysX if effctively dead in UE5, unless you want go to pain and restore float switch

[gilded pecan]

Other than Omniverse, does anything else use the "next-gen" PhysX 5?

[ashen kiln]

No, it's not released to public yet, probably will never happen

[autumn axle]

Recent commits looking good, might have to build and test soon

[karmic gazelle]

A later revision of S3CacheStore.cpp removed those variables to fix those errors.

[crimson granite]

All my crashes are either DX12 related or Chaos related. Honestly wondering if this is because I converted the project over from 4.27 instead of making the assets in 5.0

[worthy herald]

This version is from yesterday

Which branch did you use?

[karmic gazelle]

The latest version of the file in ue5-main (and 5.0) no longer defines the variables in the compile errors that you shared. https://github.com/EpicGames/UnrealEngine/blob/ue5-main/Engine/Source/Developer/DerivedDataCache/Private/S3CacheStore.cpp

[lofty idol]

Mine too, but specifically Lumen + DX12. When I disable Lumen the editor/runtime becomes a lot more stable. I ended up switching to Dx11 for testing because it is so much more stable.

[crimson granite]

Haven't had a crash on DX11 once actually. I've learned to adopt the model you've said. But I was under the impression that technologies like Lumen and Nanite we designed and built with DX12 in mind so just thought it would be more stable.

[torpid valve]

unfortuntely it's hit or miss

and not always engine related

there was recently fix for nvidia + unreal but im not sure if it ended up in main

[sour rivet]

For an experienced user how bad is UE5 source to use rn

Is it somewhat stable or still buggy af

[strong hull]

depends on the day

[sour rivet]

I’m sure it’s come a long ass way from EA2

EA2 is a nightmare

[eager hedge]

for an experienced user it's fine - you surf through commits a bit to find one that's mostly stable and stick with it

if you find a good build, you stick with it. I personally keep a list of things that I've noticed are broken but don't block me and I check new commits maybe once a week to see if things are fixed.

and by "check new commits" I mean I just build the latest code on 5.0. I'm not pouring over commits manually lol

[sour rivet]

I think I’m gonna start using it I’ve been dying to work with it

[eager hedge]

if you know what you're doing and understand the work involved it's not hard to deal with.

[sour rivet]

Yes my only thing was im looking to start a serious project with it that I’ve been prototyping in UE4

And it’s not really determined how project porting will work to release copy

[eager hedge]

for a serious project idk that I'd make the jump unless you really need one of the new features that doesn't have an equivalent (like world partition)

not sure what you mean by that last bit

porting from 4 to 5 is like jumping between any engine versions

[sour rivet]

I mean if I build UE5 from source and start a project, if I have some troubles and I carry the project over to let’s say a stable release, will the issues come and haunt me

[eager hedge]

ah

I mean, if you're experienced enough to deal with it then go for it. I guess previews should be coming soon ™️ anyway

[sour rivet]

Because I get the modularity of ue engine and projects but I just don’t want shit to get cached and messed up in my project

But I supposed if my code is okay and it’s just an issue with the engine build then when they patch my issue it should go away

In theory

[lofty bear]

I'm pretty fucking tired of trying to make an installed build of UE5. It takes hours to attempt, and it keeps failing with messages saying I'm missing some SDK. When I install that SDK and run again, it takes even longer, and then stops at some other missing SDK.
Why on earth are these not prerequisites for the build to even start? I just downloaded some Windows 10 SDK debugger tools, tried again, now it needs .NET 4.6.2 developerpack, seemingly because of iOS\iPhonePackager, a platform I've excluded.. gawd

[rancid kelp]

never heard of having to install iOS\iPhonePackager to install use, it will ignore what ever is not installed and just install for what you have.

[strong agate]

You can't exclude IOS from Setup.bat. That's how it is unfortunately. I think there's a hack if you put some png files in a specific folder you can avoid it. But I just don't bother and download all the dependencies.

[rancid kelp]

? i exclude almost everything from linux to ios..

[strong agate]

If you're building from the project that's okay, but if you're doing a installed build (a.k.a rocket build) you need the IOS dependencies

[rancid kelp]

if your on a ios pc.

[strong agate]

It's been a general complaint for quite some time ago how excluding dependencies don't untangle some IOS crap

I'm using Windows

[lofty bear]

It's probably my own fault. I'm using Rider, but I have Visual Studio 2019 installed, and I see in the output that it looked for .NetFramework in the VS2019 folder. I guess maybe it would've worked if I had 2017 installed, since that's the officially supported VS?

[strong agate]

Again, you only experience this if you're doing a rocket build, not building from the project

I use Rider as well

And VS2017 is deprecated IIRC, VS2019 is the norm and VS2022 support has been added

[lofty bear]

C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets(1217,5): error MSB3644: The reference assemblies for .NETFramework,Version=v4.6.2 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack). You can download .NET Framework Developer Packs at **https://aka.ms/msbuild/developerpacks **[\Engine\Source\Programs\IOS\iPhonePackager\iPhonePackager.csproj]
Took 0,35777359999999997s to run MSBuild.exe, ExitCode=1
Command failed (Result:1)

So ok, I need 4.6.2. I go to the link, where it says

All .NET Framework versions since .NET Framework 4 are in-place updates, so only a single 4.x version can be present on a system.

My current version is apparently 4.8, which I assume is because I needed it for something else.
So now I have to remove 4.8 and downgrade to 4.6.2?

[strong agate]

You need both

Open Visual Studio and be sure that you have .NET desktop development and Desktop Development with C++ checked on, along with these Individual components

[lofty bear]

well fuck me

[strong agate]

Be prepared for also having 300GB of spare space and some time, it takes 70 minutes on my 5800x, however on my old 2200G it took 12 hours in a SSD and 3 whole days in a 5400rpm HDD

Lack of RAM can also generate a problem of heap space, the ideal is to have 4gb per CPU thread, you can mitigate this by limiting maxprocessorcount in the BuildConfiguration.xml and increasing your page file size

[lofty bear]

My body is ready

I'm not much of a hardware geek tho, how do I check how many CPU threads I have? Is it just cores*2?

Oh right, I have 16 threads, but 32gb ram. Guess I should've invested in 64gb.

@strong agate You know what, the stupidest thing here is that when I first installed Visual Studio(2019) on this computer it asked me what I was gonna use it for, and Unreal Engine was an option, so all these checkboxes were auto-filled for me because I selected UE-development. I feel like it definitely should've included whatever's necessary for installed builds. Or maybe the requirements have been updated for UE5, idk..

[strong agate]

I think you're mostly fine, probably with a big page file you're not going to need to limit your threads

[hazy moat]

after running setup.bat you delete IOS & TVOS folders in Engine\Source\Programs\AutomationTool

after that replace modified InstalledEngineBuild.xml in \Engine\Build

i really wonder when EPIC makes -Set:HostPlatformEditorOnly=true or -set:WithIOS=false work like it should be

[zealous yarrow]

32GB should be enough for 16 threads

I have 64GB with 32 threads and it ends up using around 45-50GB when compiling the engine

[hazy moat]

when people do not need apple garbage then it should be possible to "boot" this garbage 100%

[strong agate]

Thanks! That's what I was doing wrong. I was replacing the xml before setup.bat and still was having MobileDeviceInterface error

[hazy moat]

I constantly build 5.0 with this hack successfully without downloading apple trash at all

[strong agate]

You saved me some precious space 😃

[lofty bear]

Did you make that file? This is the diff: https://www.diffchecker.com/5cUxUD7Y
It feels so.. wrong. What if my version of UE5 differs from yours and expects something that's not included 🥸

[hazy moat]

Yes it is an hack sadly but for me it works but i repeat it is an hack until there will be official cli option to exclude apple garbage 100%

[lofty bear]

Spicy. I'll try it!

Btw, can any of you explain what DDC actually is? It says "Build a standalone derived-data cache for the engine content and templates", but I don't really understand what it really is or does..

[hazy moat]

I learned this from author of UBB, Unreal Binary Builder

5.0 a5b9f97 build ok for me, just mentioning.

[desert parrot]

I'm getting these errors on my build server. 24@1.5ghz cores and 16gb of ram on windows server

Is it too many cores for the amount of ram do i need to add more to the vm

I've been struggling with googling and nothing is really helping

Oh also there is no gpu, don't think that should matter though

[hazy moat]

try that, maybe you have to lower or can increase that number but this is miracle number for my system. 3700x + 32GB ram

it is trial and error

[desert parrot]

I'll try that thank you!

[hazy moat]

picture shows location of this file

[desert parrot]

I'm running a 5800x and 32gb of ram on my desktop and had no issues with compiling it, but server hardware seems fucky with compiling ue5

[hazy moat]

wow lucky, i myself tried everything from pagefile to whatever trick but only this xml fixed for me

for me 12 was upper limit, with 13, 14, 15 etc i still had a chance to trigger heap space error

but beware, build speed will decrease.....but at least it is successful which is more important

[desert parrot]

Just build speed on the engine though right?

[hazy moat]

i am no coder myself, just a hobby builder of UE5. Maybe someone could explain this better why it works but for me it just works

I even limited my pagefile to coulple of gigabytes max to prove myself that/if Unreal still built success

[strong agate]

I have 32GBs and 5800X as well, I've noticed that when I build the engine in my HDD I can use the 16 threads. However in the SSD I ran into the heap size problem and have to lower to 12

[desert parrot]

Is 220gb not enough space :p

[lofty bear]

@hazy moat Just to make sure I don't waste more unnecessary hours on this; I've deleted(moved) the IOS and TVOS folders from Engine/Source/Programs/AutomationTool, replaced the InstalledEngineBuild.xml, and now I should be able to run this command?:

RunUAT.bat BuildGraph -target="Make Installed Build Win64" -script=Engine/Build/InstalledEngineBuild.xml -set:HostPlatformOnly=true

Or should I change the command?

[hazy moat]

I have a USB 3.1 type c fast ssd for building

[hazy moat]

I cannot ever guarantee success, ever, but this is my personal build graph. NB: you have to find option meanings from online or unreal docs

couple days ago i had build fail(bad commit), today i had success with a5b9f97 5.0

it is like roulette, i build when i leave my pc emty running and doing other things coumple hours

[strong agate]

I would also advise against using ue5-main as well. It's super broken.

[lofty bear]

I think we're all talking about 5.0, not ue5-main

[hazy moat]

ue5-main should be avoided at all cost, like Gulop said it is super broken from every part

[strong agate]

It's because I saw some newcomers building ue5-main directly because they saw an old video or post recommending it, when the 5.0 branch didn't exist

[lofty bear]

I've been trying on 6b10e3f today, two after yours, so it should be fine.

Allrighty, I'm gonna try your .bat 🤞

[hazy moat]

make sure you understand options what they change or exclude as it is only my personal choice

[gilded pecan]

@strong agate #ue5-engine-source message try this.

[lofty bear]

I thought it didn't work for a second, but it just doesn't output in the cmd 😅

[hazy moat]

yes i dump to .txt file

[gilded pecan]

Just untick the DDC compilation, otherwise it's going to take a long time (took 4h on my 5950x). With base settings it's about 30 minutes.

[lofty bear]

At this point I don't really care what's included as long as it runs. I'm going to bed while it builds.
I'm probably gonna delete the entire thing as soon as they release a proper version of 5.0.

[hazy moat]

If my mod fails then you could try luck with UBB tool

[lofty bear]

I already tried, and it failed sooner than my manual attempts. And gave me Chinese buttons on error messages. big yikes

[gilded pecan]

UBB is just a graphical interface for the Unreal Automation Tool (UAT).

[gilded pecan]

Try asking in the UBB Discord. I've never had issues with it on multiple PCs.

[lofty bear]

I will if this doesn't work 👍

@hazy moat Btw, will your .bat let me know when it's done. Like, will it close or output anything?

[hazy moat]

Good luck, myself learned my way from UBB. Was easier for me later on

[hazy moat]

It just closes on error and on success which you will be seen by log and if success then "dont remember folder name" appears in unreal source folder

[lofty bear]

yeye nice. "LocalBuilds/Engine/" I guess?

[hazy moat]

I repeat, i am no coder and it took over year to finally get build going at all. My goal is 3D art itself and world building

[hazy moat]

yeah excatly

[hazy moat]

If builds still fails then log might, i repeat might tell what went wrong but if there is some VS component missing then it can easily fail too.

[lofty bear]

Regardless of how it turns out, I've learned something, so thanks for the help guys!

I'm going to bed while it compiles, and I'll probably have nightmares about monsters crawling out of my monitor yelling "BUILD GRAPH"

And instead of arms it will have "Installed Build iOS error" messages

[strong agate]

Yeah I've tried to use Unreal Binary Tool in the past but I never managed to make it work, it always fails when trying to run the prerequisites installer but that's because Binary Builder didn't run Setup.bat while I believe it's supposed to do so?

If I have to run Setup.bat by myself I'd rather do it by hand

[desert parrot]

So i've been recompiling for a hot minute its at like 2500/5500. I'm almost out of disk space.... It's the only thing on the vm is 230gb vm not enough space?

It was enough space for ue4.25 @_@

Does this seem right?

[eager hedge]

yep

depends on the number of build configs you're building and how many leftover intermediate files you have

[desert parrot]

@_@ That seems so much bigger than ue4

[eager hedge]

I hit almost 300GB in the engine dir from creating an installed build, but that's multiple build configs and all modules.

[desert parrot]

What would the purpose of multiple build configs be?

[autumn axle]

So with Material AO not being used by Lumen, it's a great candidate for me to use to pass custom data through to PP mats - for a material-based 'fake' custom stencil pass that respects occlusion, to use with nanite, in this case.

It works perfectly without any Metallic values - but once introduced they somehow affect the Material AO pass - increased metalness lightens it slightly, and spec and rough also affect this. Been looking through the gbuffer/deferred shading stuff and I can't see where this is happening, and am at a loss. All I want is for MaterialAO input ----> GbufferAO ----> scenetexture PPI_MaterialAO. Is there maybe another place I'm not looking where this is being affected by other PBR channels?

Or- maybe there's a simple way in the material editor to negate the value changes caused by the metallic channel to undo its effects?

[eager hedge]

In general? Because you want to have more or less debuggable versions of the engine (+ editor and non-editor builds, + server/client builds if relevant).
Why I was doing it? Installed builds are what the launcher provides - which includes debugggame editor, development editor, development, and shipping versions of the engine.

[desert parrot]

I see! That makes sense @_@ I think i might just allocate half a tb so it's not a problem in the future...

[lofty bear]

I don't know if it was the missing SDKs in VS or the fix for iOS/tvOS or the updated .xml/.bat-command, but it fucking worked lads 🎉
@strong agate and @hazy moat Thanks for all the help 💌

[opaque phoenix]

any interesting commits this week?

[static copper]

Chaos solver got 10% faster

nothing else I can remember

[opaque phoenix]

so chaos might be production ready with stable release?

[static copper]

too many questions unanswered

backface collision, actual sim stability with stacked objects

if it's even as fast as physx yet

it's good enough for my purposes but some people might still be disappointed

[cedar tree]

da fuq

C:\Users\Joni\Documents\UnrealEngine [ue5-main ≡]> git pull
remote: Enumerating objects: 759364, done.
remote: Counting objects: 100% (105533/105533), done.
remote: Compressing objects: 100% (130/130), done.
fatal: protocol error: bad line length character: )9d߬ 11.23 MiB/s
error: inflate: data stream error (incorrect data check)
fatal: pack has bad object at offset 1074044787: inflate returned -3
fatal: fetch-pack: invalid index-pack output

[static copper]

that's a bit too deep in the filesystem to build unreal

assuming it's just a folder url length issue

[cedar tree]

I have long paths enabled and it has built fine before

but that's a git issue

not a build issue

just wondering what that is as I have never encountered that error with git

[static copper]

google says server issue

try again and pray it doesn't explode this time I guess

bummer

[cedar tree]

typical github 😄

shallow clone with just ue5-main branch worked 🤔

oh well

[static copper]

I think some built in Ms libs need to be deleted

Ugh, I forget the filename of the random MS file I had to clear out

I assume it's a similar issue

[tender crest]

guys i just built unreal engine 5 - main from source. the unreal editor opens up, but when i create a project, nothing happens

anyone know this issue?

[cedar tree]

I just built it too and shader compiler crashes due to out of bounds array access 😄

[lofty idol]

do you guys experiencing issues with destroying actors on latest 5.0 builds ?

[buoyant field]

Hello, got a small question, what is the size of fully built ue5 editor (from source), more or less? My ssds are too small lol

[buoyant field]

thank you

[hazy moat]

Rocket build of 5.0 is something around 60gb, but removing .pdb files drops to around 10gb BUT if you plan submit crashes to EPIC or need to debug yourself then i strongly suggest to keep them.

[buoyant field]

Yeah, was just trying to figure out how much stuff gotta purge from drive 😛

[buoyant field]

well im at 230 now, rip

my drives are too smol

[hazy moat]

for me it is 260gb to build a safe bet (without iOS garbage of course)

[desert parrot]

Okay so i finally got ue5 to compile mostly... 73 succeeded 1 failed

Is zendashboard anything to worry about?

[cursive elk]

is only zendashboard failing ??

[desert parrot]

Yeah is that an issue?

[cursive elk]

no

[lofty bear]

I'm looking into creating a mesh at runtime at lowlevel (not PMC), and specifically looking at the CollisionDataProvider interface. It needs to fill a FTriMeshCollisionData which has the variable TArray<FVector3f> Vertices. I expected this to use FVector3d(double), or at least FVector, given the new LWC system. Since it specifically is the new FVector3f (float), does this mean I can't use this interface for generating collision with double precision?

[lofty bear]

The same struct also has TArray<TArray<FVector2D>> UVs, which I find a bit weird. Allowing double for UVs, not for collision? I guess it's just unchanged from before LWC was introduced, but it strikes me as odd when Vertices was intentionally changed to Vector3f.

[limpid axle]

Hi Guys, i compiled the engine from the 5.0 branch, my project works fine so I downloaded a much newer commit to the same branch but it said it was made in a different engine and wouldnt open...any insight on why?

[torpid ocean]

are there any differences between the launcher ue5 and the source? - i was told a few bugs were fixed like worldpartition, but i have no idea

[arctic cradle]

Plenty of differences!

[torpid ocean]

i've never done it so it's a new world for me

[arctic cradle]

The source build (you're using it from git?) gets updated regularly, so there's always new bug fixes and undocumented features (read new bugs)

[torpid ocean]

interesting, if that's the case, why doesn't epic update the launcher version?

i assume there's a lot of reasons, just curious

[arctic cradle]

They do, that's what every 4.x version is

It's just not all that regularly

[torpid ocean]

i'm referring to ue5 builds

[arctic cradle]

Yeh, that UE5 will get a .1 .2 .3 etc

[torpid ocean]

what i'm saying is, if there's been multiple updates, why haven't epic updated the ea version

[cursive elk]

what exactly has lwc introduced exactly ?? an extra float for tile position ??

[arctic cradle]

Because they want to make sure it's a good build and has plenty of new features. They have a plan for 5.1 and such. They are literally thousands of updates every week (maybe even day) they can't test and release a new launcher version for all of them.

[torpid ocean]

ok, fair

[grand epoch]

Does anyone know off-hand where Unreal checks when providing choices for the "Source Code Editor" options? UE5 is suddenly unable to find VS2022 and it's not showing up in the drop down.

[torpid ocean]

question, anything interesting between the ea2 build and the most up to date ue5main source?

[fallen briar]

Epic got a lot of work done in the 8 months since ea2

[torpid ocean]

I've just not seen much about it since ea2

didn't realise it was a funny question 🙄

[fallen briar]

well, hard to say whether something is interesting or not without knowing your interests

[torpid ocean]

well, is it just bug fixes, or any features added, i can't seem to find any update logs or anything anywhere.

[fallen briar]

heck of a lot more than just bug fixes

[torpid ocean]

where can i find out that for myself?

i don't want to be asking here everytime i have a question, might get annoying XD

[zealous yarrow]

https://github.com/EpicGames/UnrealEngine/commits/5.0

[fallen briar]

reading commit comments (https://github.com/EpicGames/UnrealEngine/commits/ue5-main), surfing twitter

this discord channel

if you're looking for an official blog post and summary on 5.1, you aren't going to find one just yet. way too early

[torpid ocean]

thanks - i'm new to the github source side of things, so it's a good shout to look there

[vale hill]

@torpid ocean EA2 pretty old at this point - would definitely recommend using 5.0 over it

[torpid ocean]

I think I went with the wrong branch, it's more recommended to go with 5 over ue5-main right

[fallen briar]

depends on what you're after, some 5.1 features aren't going to be in 5.0, some things that work in EA2 break in 5.0 (like the stack-o-bot example project)

[last widget]

What features are getting pushed back to 5.1?

[fallen briar]

features that aren't deemed ready... your guess is as good as anyone not at Epic. Things in 5.0 as of now might be taken out, other stuff might get merged in. You can compare the two branches if you're really curious.

[grand epoch]

Can anyone point me to any documentation or give any input on what to use instead of "GetToolbarTab" in UE5?

[lofty bear]

I see in Components.h (at Engine/Source/Runtime/Engine) that FStaticBuildVertex was changed from FVectors to FVector3fs back in May. This seems to imply it's not possible to have meshes utilizing double precision. Do we know if this is planned at all for the future, or is it like on a "nobody will ever need that"-list?

[marble sedge]

@lofty bear I know that AMD GPUs support 64 bit floating point, but none for Nvidia drivers

It's pretty rare to use double on rendering, probably still use world anchor offset to render big world?

[haughty bear]

its camera relative rendering, not doubles on gpu

[marble sedge]

@lofty bear FVector is now FVector3d since a big world coordinate macro was enabled, so you would need explicitly declare 3f to use single floating point

[lofty bear]

I know, I was just wondering if they'd eventually let us use doubles (I.E that meshes can use LWC) or if LWC is strictly for movement between meshes spawned relative to camera.

[limpid light]

All actors in the world now have double vector precision, so you can make a really really really large map now without shaking issues when the player/camera moves far out into that world.

If you want to make a single mesh that is larger than 20km on each side, then you will start having other issues like with Lumen

[lofty bear]

But that's only the translations world-position, not the vertices relative position, right?
I don't need a single mesh larger than 20km, but for making e.g. a planet it would be more practical to spawn each vertex for each updating chunk relative to the center of the planet instead of relative to the moving player.
I mean, it's not a big difference. It would only remove some offsetting logic.

[limpid light]

Im no expert on how the GPUs handle vertex positions but I'm not sure you can do that, and it seems like a waste to me? Probably cheaper to do the offsetting logic for now? But with Epic abstracting things this way they can always switch this without affecting users at all.

Remember you would bloat the mesh size in memory quite a lot by using doubles for all vertex locations

[lofty bear]

Yeah it's probably a lot cheaper, I'm just unsure where this is headed. I'm assuming we'll end up there some day, I'm just having a hard time seeing what LWC implies in the grand scheme of things. But I guess that's why they've called it "large world coordinates" instead of marketing it as "full support for double precision".

[limpid light]

If you've ever made a game with a large world then you've had to implement "origin shifting" on your own to get around the float precision issues. LWC support in UE5 just makes it a lot easier to create games with large worlds, thats it.

Origin shifting is an advanced subject that not everyone can implement, and takes effort to do

[lofty bear]

Yeah, and that's really great. World rebasing has always given me some issues, and I'm really looking forward to not having to deal with that.

[limpid light]

yeah same here

its just part of Epic's push in UE5 to make the engine handle huge worlds, one of many features for that story

[static copper]

there might be a new large world template in the future

uncertain though

[lofty bear]

I'm trying to optimize a few things, but having a hard time resolving the new FVector. There are quite a few places in the engine where it still hasn't been changed from FVector to FVector3f (where I'm pretty convinced it should be 3f).
If I have a TArray<FVector3f> My3fArray and need to pass it to an engine struct that's still TArray<FVector>, should I just cast it like static_cast<TArray<FVector>>(My3fArray);?

[echo ravine]

You should be using FVector directly

If for some reason you need explicitly the float type version (??) that you then need to pass to TArray<FVector>, you need to create a local TArray<FVector> and loop to create copies

Casting can't work since the types are unrelated and of different sizes

There are quite a few places in the engine where it still hasn't been changed from FVector to FVector3f (where I'm pretty convinced it should be 3f).
You should expect the entire engine to use FVector generally

There's no good reason to use float versions now that all game code will be double

[lofty bear]

This doesn't really resonate with what I'm seeing in the engine code, or with what we just talked about earlier here. Plenty of variables have been changed from FVector specifically to FVector3f.

[echo ravine]

I'm sure plenty of those actually need to be float, but there is no general reason to move to a float type

You said "optimize" and I feel like you think moving to float will make the code run faster

This won't be true in general

[lofty bear]

"Optimize" was a stretch, it's more "fixing errors after converting to LWC".
The issue is that I have some FVector variables that I send to the engine, but some of these variables in the engine have changed to FVector3f, so I was converting my own stuff to FVector3f to not have to convert in in runtime. But now I'm finding other parts of the engine where I need to pass the same variable, but where it's still FVector. So I'll have to convert it at one point no matter what.

And when having thousands of these in memory, surely converting to float would be an optimization?

[echo ravine]

Yes, you would gain entire bytes there

At scale maybe the equivalent of one 128x128 texture

The cost of converting to or from either type will be higher than the general performance difference between double and float

Use FVector, convert when/if needed

[lofty idol]

You won't get any benefit from converting double to float unless your code is highly cache coherent and/or using simd instructions.

[lofty bear]

I know that this is true in general. But the major benefit here is that it works, while sending an FVector to an FVector3f worksn't.

[torpid valve]

The places where FVector3f is used are either:

1. very tight sims (like cloth which is done in local space)
2. Converting transforms before sending them to GPU.
   If you don't have similar high performance/local space only requirements, it's not worth it.

[torpid valve]

What is even the point of converting FVector to FVector3F

?

[lofty bear]

I have a lot of code handling vertices, and then they are all passed to the engine in a buffer. My code uses FVector for the vertices positions, while the engine has changed to FVector3f.
Instead of having to convert every single vertex from double to float, I am changing my code to also use FVector3f, so that everything is always FVector3f and I won't need the conversion.

I was posting the question because I noticed that some of the engine code for collision still uses FVector for vertices, which didn't make sense to me because mesh vertices are explicitly FVector3f. So I will have to convert it.

[torpid valve]

maybe because they need to be in world space ?

since if the positions are in floats

it will brak

break*

with any narrow/broadphase collisions

[lofty bear]

I'm not following.. Anyway, that is the point of converting FVector to FVector3f, since you asked. Are you saying I should rather keep FVector and convert them all to FVector3f when passing them to the engine? That's A LOT of processing for conversion..

[echo ravine]

You should minimize conversions, regardless of the actual type needed

If you're going to convert more with FVector, use FVector3f, or the reverse

[lofty bear]

For places where I do need to convert between TArray<FVector> and TArray<FVector3f>, what is the absolute optimal way of doing so?

[echo ravine]

There isn't one really

[torpid valve]

Yes. But depending on what exactly you doing it's not that simple.
For rendeing you should convert them to camera space (like the rest of engine)
For physical simulations.. you should just use doubles.

[desert parrot]

I compiled useing branch "5.0" and i'm missing textures would there be a specific reason for this...

Also lumen looks a little fucky

I was previously using the launcher ue5 release

[plain cloak]

there's a setting in lumen, something about precision that's defaulted to 1. if you set it to 2 it should fix some of it

tho i didn't play much with it

[limpid light]

my guess is your Lumen settings reverted to global instead of detail. I've seen that happen for a few people who were using EA previously.
Check under your PP volume settings, under Lumen. Think its called "Software raytracing mode" or something like that

[desert parrot]

I was meaning i'm having an issue after building

This is in editor

The previous image was a built version

[limpid light]

Ok sorry, not sure about that. Check if the DefaultEngine.ini file in your build has an entry for "r.Lumen.TraceMeshSDFs=0"

if so, try setting it to =1

I dont know whats causing your missing textures, did you check the output logs?

[zealous yarrow]

My "backrooms" senses are tingling 👀

[desert parrot]

Yeah i was trying to transfer the files because it's currently on a windows vm i'm vncing into

[desert parrot]

Probably

[desert parrot]

Is it possible between cloning the engine between 1.5 days ago and about 4 hours ago could of caused this?

I just built it on the engine i forked 4 hours ago on my desktop and it looks fine...

But my build server is fucky

[limpid light]

Anything is possible, its a complex beast and not stable yet.
Try making a simple standalone project with the simplest test you can do ( a textured cube) and package that. Could be something in your project too

[restive steppe]

i had the same issue with missing textures on Nanite Meshes in Standalone Play Mode with Builds from last week. What seems to fix it is switching one Texture Sample in the Master Material to a VT/Non VT Texture, applying, and going back to the Original one. Maybe it refreshes somthing in the Cache, but weird that its only a problem after building

[full depot]

Can I read that as "Let's use double everywhere #YOLO" ?

[lofty idol]

¯_(ツ)_/¯

vast majority of the time floats aren't any faster, hence why quite a few popular scripting languages don't even support them.

lua (by default), python, javascript, etc, all use doubles.

Unity mono used to internally use doubles for all floating point types. Recently they fixed that (so now floats are 32 bit floats, instead of 64 bit doubles under the hood), but did that increase performance? Nope.

iirc people had a hard time to produce synthetic benchmarks, let alone real world performance.

floats vs doubles doesn't matter as much as people think imho.

[echo ravine]

Honestly that's pretty much it - 64b types are quite fast

Unreal removing float support for most of the engine isn't some crazy next gen move

And if you're looking for absurd performance issues in the engine there are some that are way worse

Between transform updates being excruciatingly slow, Blueprint tick by default, overlap events

[limpid light]

Agreed, but there are definitely cases where you would want to use a float over a double. I've often worked with systems using huge arrays of floats, for example an influence map system, and doubling the memory requirement of that system on a server can be a non-trivial change for no added gains since the floats are usually of small values.

[torpid valve]

as per usuall it depends on use case

and scale

if you are working with big maps, you can't store entire influence map, regardless if it is double of float

[limpid light]

absolutely, and the most common cases are just fine using doubles

[torpid valve]

Guild Wars 2 have nice implementation based on quad tree

which is sparse

[limpid light]

If you have a distributed server architecture you absolutely can

yes I pretty much did the same approach as GW2's system

not storing empty maps etc

[torpid valve]

Honestly in this age I'm not sure if creating distributed servers make sensnse, unless you want unlimited scaling 😄

it's probabaly easier to get 64 cores server and run everything on single machine

but guess different trade offs, single server will be limited by memory

[limpid light]

aye the maps took up a considerable amount of memory, even with large cells

memory is pretty cheap though, relatively speaking 🙂

[torpid valve]

yeah, but mobos have limited memory slots 😄

[limpid light]

I think DDR5 modules will have even higher densities, even 128 and higher sticks

I have 64 in my personal computer, wife has 128GB 🙂 (she uses Houdini...)

[arctic cradle]

You don't need to go to ddr5 for higher densities, just change the type of ram chips, RDIMM or LRDIMMs instead of your standard ones.

[limpid light]

Quote: "Whereas DDR4 had a maximum die density of 16Gb, DDR5 quadruples that number to 64Gb."

but yeah you can apparently get up to 256GB DDR4 sticks for servers. Sorry we're getting off topic here 😄

[arctic cradle]

Yeah, I was looking at server memory yesterday adbn you can get stupidly big ddr4 ram.

[limpid light]

probably just more chips on the board + custom controllers. That means we might see 1TB modules with DDR5 😮

[torpid valve]

higher density DDR4 is also much more pricier than DDR5

that its when the prices normalize 😄

DDR5 is denser by design

[arctic cradle]

Depends if your server supports ddr5 or not, really.

I was looking at threadripper motherboards and it's all ddr4 😦

[torpid valve]

I wouldn't buy threaripper now

wait for Sapphire Rapids

and just get better one

[fierce pasture]

I wouldn't buy a Threadripper for a production machine running services a user is on. AMD Epyc or Intel Xeon depending if you need single core performance or many cores.

Build machines, Threadrippers are amazing

[limpid light]

aye, DDR5 and PCIex 5/6 are new features not all manufacturers have implemented yet.

Intel has been catching up with AMD lately too 🙂 build times on their latest CPUs are quite good!

[hazy moat]

I probably sit on my x470, 3700x, 32GB ddr4 long time until prices get normal again. Even my main ssd is on sata(i have M.2 slot, just emty). I compile Unreal often from my usb type c drive which is even faster than my internal drive 😆

[fierce pasture]

If you have the money and capacity, Intel for cooking and AMD for compiling 😄

[limpid light]

https://www.pugetsystems.com/labs/articles/Unreal-Engine-12th-Gen-Intel-Core-vs-AMD-Ryzen-5000-Series-2249/

[fierce pasture]

For personal or workstation machines, yes, they just don't have the core count to match my 3990X 64 core Threadripper build machines 😄

[limpid light]

agreed, but Intel isnt that far off with their Xeon W-3300

(compared to 32 cores Threadripper ofc 😄 )

Now we just need Intel to shape up their act and ship more CPUs with a higher core count 😄

[fierce pasture]

Shitty thing is how hard Threadrippers are to get right now. We are expanding our build farm right now and are probably going to get EPYC machines instead.

[limpid light]

damn 😦 the hardware situation is just shitty all around, and wont improve any time soon 😦

[fierce pasture]

We found these amazing Gigabyte machines, but apparently they only made a few hundred of them and then couldn't get any more Threadripper CPUs for them. 😦

https://www.gigabyte.com/Enterprise/GPU-Server/G182-C20-rev-100

Only thing I wasn't happy about was the m.2 slot goes through the chipset instead of direct to CPU 😦

[torpid valve]

Disagree

[fierce pasture]

Go on...

[torpid valve]

I have threadripper

and I can't imagine living without it

my only regret is that I have bought 24 core instead of 32

[fierce pasture]

I mean, I would love to give all developers a Threadripper workstation, it just costs to much.

[torpid valve]

let's be honest

progremmer time

cost far more than threadripper

[fierce pasture]

Generally speaking I agree with you, but also that money could be spent on other things. It's just about prioritization.

There is also a cost associated with having different machines for different people instead of just unified machines.

[limpid light]

the diminishing returns of 32 vs 64 cores compared to the cost difference is a bit insane 🙂
If I was buying a dev workstation right now I'd just go for the latest Intel i9, its very close to a 32 core TR

[torpid valve]

Not convinced they are even close to the same league

for compilation and/or cooking 😄

[tender crest]

Severity Code Description Project File Line Suppression State Detail Description
Error (active) E0070 incomplete type is not allowed MyProject D:\UnrealEngine\Engine\Source\Runtime\SlateCore\Public\Layout\BasicLayoutWidgetSlot.h 37 detected during: instantiation of class "TAlignmentWidgetSlotMixin<MixedIntoType>::FSlotArgumentsMixin [with MixedIntoType=SOverlay::FOverlaySlot]" at line 491 instantiation of class "TBasicLayoutWidgetSlot<SlotType>::FSlotArguments [with SlotType=SOverlay::FOverlaySlot]" at line 41 of "D:\UnrealEngine\Engine\Source\Runtime\SlateCore\Public\Widgets/SOverlay.h"
anyone know what this error means?

[limpid light]

Just look at the benchmarks I just posted above

[torpid valve]

"AMD Ryzen 5000"

that's nowhere near 32 core threadripper (;

[limpid light]

there is another benchmark on the same page for all the TRs...

here
https://www.pugetsystems.com/labs/articles/Unreal-Engine---AMD-Ryzen-Threadripper-PRO-3000-Series-CPU-Performance-2075/

And the 3995WX here
https://www.pugetsystems.com/labs/articles/Unreal-Engine---Intel-Xeon-W-3300-Processor-Performance-2203/

[torpid valve]

ok im spiled but for me

650 vs 900 seconds

is eternity

not to mention I can do 6 other things when its compiling 😄

[limpid light]

3995WX 64 core compile time for 4.25 = 432 secs
Intel i9 12900K for 4.26 = 992 secs
Intel Xeon W-3365 = 582

650 vs 900 yeah on 32 core, thats not enough for me to spend all that cash 😛

its 4mins on full engine compile time

[torpid valve]

haha, I dare you to try it for yourself 😄

I'm in high core workstation camp now, and I cant go back

price doesn't matter

[limpid light]

I bought a 32 core TR build machine not long ago 😛 currently using a 8 core i7 10700K workstation and Im ok with that 🙂

[limpid light]

then all the better to you 🙂 Im sure you would think differently if you'd have to purchase hardware for a team of 20

but I mean yes you are right, the cost of a high powered PC is low compared to salaries and productivity. Im just not sure I'd spend on a 64 vs 32 core is all 🙂

[keen frigate]

does the current (as of about half an hour ago) ue5-main branch build atm?

because my build just failed :(

Error    C2086    'FString ExtraReleaseVersionAssetsFile': redefinition
Error    C2374    'bUsingExtraReleaseVersionAssets': redefinition; multiple initialization

[limpid light]

Its possible the engine source is broken, but usually when someone has a redefinition issue they are just updating and building the source wrong. If you are copying the sources from git to another folder, and not deleting the source files first, then you are creating duplicates since Epic often moves or deletes files.

If you are building straight from your cloned Git repo then you should be ok on that

[keen frigate]

im doing the latter

[limpid light]

then its probably Epic who broke it and you need to wait for a fix

[keen frigate]

git clone https://github.com/EpicGames/UnrealEngine.git -b ue5-main ue5
.\Setup.bat
.\GenerateProjectFiles.bat -2022

then I:
-started the solution
-cleaned the Engine/UE5 Project
-started a build on the same project

[limpid light]

can confirm a buildbot who builds daily also has the same error you posted, so its not just you

[keen frigate]

ah okay cool cool

[limpid light]

updates on Git seem to be behind atm

[keen frigate]

im tryna play with Large World Coordinates, do you know of a way to find a building commit hash?

[limpid light]

This is the last one I know confirmed building
https://github.com/EpicGames/UnrealEngine/commit/b266a1cf7446e853407612a6fdd22b30dd1988ed

[keen frigate]

thankyou! i will checkout to that now

[limpid light]

Also Epic has fixed that compile error internally, it will appear once the branch on Git updates 🙂

[keen frigate]

cool, ty for the info!

Error UnrealBuildTool has banned the MSVC 14.31.31103-14.31.31104 toolchains due to compiler issues. Please install a different toolchain from the Visual Studio installer. UE5

well thats a uh... interesting error

[hazy moat]

Just out of interest, is VS 2019 still default 5.0 official compiler? this far 2019 is compiled successfully, but out of curiosity is 2022 becoming default?

[limpid light]

2019 is supported, but I believe 2022 is becoming default or already is

[keen frigate]

what msvc toolchain can i use with 5.0 it doesn't seem to like the latest 143

[limpid light]

I havent seen that error, but I upgraded to 2022 a while ago

[keen frigate]

i installed 2022 today

so imma try downgrading my build tools

[limpid light]

your error points to it using a 2019 compiler

[keen frigate]

14.31 is 2019?

i see no later option in the visual studio installer

[limpid light]

yes, 2022 is 17.1 afaik

https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Internal_version_numbering

oh wait, you are right

VS 17.1, but MSVC toolchain is 14.31

[keen frigate]

yeah i was gonna say it says 2022 in the name

but it appears this version is banned so im installing 142

[limpid light]

I'm using v143 but it seems to be 14.30

probably just a brand new update that hasnt been tested properly yet

[keen frigate]

.. yay me

1>Using Visual Studio 2022 14.29.30136 toolchain (C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.29.30133) 

well good news is its started building.. bad news is its recompiling from scratch so its gonna take me couple hours

[torpid valve]

just pull more commits

it was fixed recently

[keen frigate]

i was on the latest commit on ue5-main

6844dd7

i've since checked out to the commit siggi kindly suggested, b266a1cf7446

and it built successfully

[rose halo]

hey i'm trying out the ue5-main 5.1 version and i'm trying to make stuff in C++ but i think i'm missing some tools within Visual Studio, where can i find what tools are required for UE5?

[static copper]

Almost identical to building 4 from source

Use the guide in the docs

[gilded pecan]

But the overall suggestion would be to use 5.0 branch.

[rose halo]

I was, but the latest source version was the 5.1 :/ it automaticly downloaded 5.1 when i was geting ue5-main

[static copper]

Yeah, switch to the 5.0 branch if you want 5.0

[lofty bear]

Do I have to enable LWC in any way? If I travel to a "high" value coordinate (600 million units = 6000km), I get jittery movement in that axis..

[limpid light]

its enabled by default and you cant even turn it off

[balmy tulip]

everyone ready for the Float/Double migration to Real? 😄

[eager hedge]

it already broke a ton of widget blueprints for me, that was fun to clean up

progress bars want floats, unreal made all my bindings return doubles 🙃

[balmy tulip]

one of our devs downloaded the new one today

[eager hedge]

no way as far as I can tell to manually specify float vs double type of a variable, had to have UMG recreate the binding functions.

[balmy tulip]

he ran into some packaging issues because of it I think

[eager hedge]

yeah it definitely has some issues

[balmy tulip]

Thanks for the heads up on that

[eager hedge]

np

I get trying to hide float vs double stuff from designers or whatever, but they really need to have a way to manually specify which you want in situations where it matters.

Especially when it outright prevents blueprint compilation like that

Hopefully they're working on it and we're just seeing a very early implementation of it.

[balmy tulip]

yeah agreed, everyone uses it in their own way because they are rather versatile.

[frank brook]

anyone got a clue?

[frank brook]

migrated only used things to a diff project and retrying

[crimson granite]

Anyone else getting this crash? Happens whenever I open any material.

Even weirder, it's not zero

[inland kelp]

Hoffa I'm running into the same issue, did you ever figure this out? I'm using Unreal Binary builder

[frank brook]

ATHelper: Packaging (Windows): ERROR: Cook failed. UATHelper: Packaging (Windows): (see C:\Users\waldp\AppData\Roaming\Unreal Engine\AutomationTool\Logs\F+UEstuff+UE_5.0EA\Log.txt for full exception trace) UATHelper: Packaging (Windows): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure) UATHelper: Packaging (Windows): BUILD FAILED PackagingResults: Error: Unknown Cook Failure

Now I dig i guess

[frank brook]

got it working

sorta

[sleek coral]

ended up using commandline to package

[static copper]

Rip to all the commits trapped by the blast doors closing

[ashen kiln]

That's good thing though, we'll start to see lots of bugfix commits soon, and no more new features breaking other things 🙂

[static copper]

Early 2021 should be any minute now...

[lofty idol]

Metaverse will solve everything.

Probably.

[lofty idol]

no commits since 2 days on 5.0 ? 🤔

[limpid light]

probably just the Git sync is down

[fierce pasture]

Their Perforce infrastructure seems to be having issues in general

[static copper]

omg, I found it

https://stackoverflow.com/questions/63527007/cannot-compile-unreal-engine-4-25-with-visual-studio-2019-7-2

I just had this happen again

[hazy moat]

interesting, ue5-main is closed, something starts to happen?

[torpid valve]

Closed ?

[limpid light]

actual last commit was like 20 minutes ago 😛 the git mirror is just down

[echo ravine]

5-main is not going anywhere

Release is on 5.0

[limpid light]

actually 2minutes ago

yes

[hazy moat]

Maybe i have just not paid attention before and it is just my error.

[echo ravine]

Git's just a mirror, and 5-main is not where releases happen

[limpid light]

That column is the last PR, not the branch status. When a branch is "closed" on Github it is deleted and disappears from the list.

[torpid valve]

i thought they had day off yesterday

federal holiday or sth

(becauuse p4 mirrors were also dead for most day) ;d

[limpid light]

Their US staff probably, but not everyone takes that day off in the US. Epic is also in way more countries than just the USA 🙂

[polar lagoon]

We Americans tend to think USA is "the" world.

[limpid light]

that is true 🙂

[umbral sedge]

Is there a way to view the original repository or is it not public?

[limpid light]

its not public

[opaque phoenix]

reminds me of the Star Wars A New Hope scene 😂

[torpid valve]

why sync is dead again

[paper hound]

are they preparing merging to release 😄

[torpid valve]

nah

someone again doesnt know how the pr works..

[paper hound]

Sorry i'm not reacting to your comment, but to the fact that last commit on 5.0 was more than 24hours ago

[torpid valve]

ahh well that's also cauused by the fact that git sync is dead

there are new commits (;

[paper hound]

dang

Overall commits have been slowing down over the past weeks

[zealous yarrow]

I'll take that as a good thing

Tbh

[ashen kiln]

Actually, you can open those pull requests automatically if you git push your HEAD into epic's remote instead of your account's remote by mistake.

So, I can't blame those people, but it's still annoying 😄

I'm sure %99 of those PRs are created with that way.

[torpid valve]

that's why you fork first ;d

[woeful hollow]

I could have sworn there were some editor panels for debugging MASS stuff...but can't find em? Maybe I was imagining it....

[ashen kiln]

You can still do that if you have epic's repo as origin remote (I'm also working like that to merge changes easily from upstream)

It's just matter of writing git push origin 5.0 instead of git push yourgithubname 5.0 🙂

[woeful hollow]

particularly interested in StateTree debug data...if anyone knows of anything useful

[lofty bear]

I have an Actor that just doesn't have the entire "Transform" field in the details pane in the editor.. How did I manage that? I'm pretty sure it was there in UE4.. It still shows the axis arrows in the level, but if I try to drag it, the mesh stays put, and the arrow snaps back to its original location when I let go..

I guess it's because I've set the RootComponent = ProceduralMeshComponent..

[lofty idol]

Just reduced my engine size of 170gb to 18gb with one simple trick!

[shy willow]

5.0 preview is out omfg

[cursive finch]

What branch is 5.0 Preview? 5.0?

Thanks!

[full depot]

Hold on

these two are not the same ?

Owwwwwwwww

So our guess that 5.0 is out for GDC gets quite solid

[paper hound]

https://www.unrealengine.com/en-US/blog/unreal-engine-5-is-now-available-in-preview

[autumn axle]

wooah

[full depot]

https://forums.unrealengine.com/t/unreal-engine-5-0-preview/500950/3

Made my day !'

[steep wharf]

Can StateTree only be used with MASS entities?

[torpid valve]

no

but unless

you are willing write bunch of code

it's not useable

[steep wharf]

Sounds like an alternative to https://www.unrealengine.com/marketplace/en-US/product/logic-driver-state-machine-blueprint-editor. If so.

[woeful hollow]

yeah, you need the statetree processor right now, which is a mass system

[torpid valve]

nah there are two schemas

mass and "normal"

you can use normal without mass

doesn't change fact, there is barerly anything, and you need to write lots of code to get it working

[woeful hollow]

ah, hadn't look at the non-mass schema

does the StateTreeBrainComponent work? Haven't actually tried it yet

waiting on engine build.....yawn

[torpid valve]

it works

at least it did in last month

[sour rivet]

I’m so happy

Preview 1

I was too lazy to build again

[paper hound]

same

[balmy tulip]

same here

we almost decided to build again

but yay!

[full depot]

I'm personally locked away from prebuilt (Or more precisly, I depend on source changes), but now that P1 is up, I can build the linked commit and know that it's a usable commit

[eager hedge]

Damn, just took a new commit yesterday 🙃

And I think it's a newer one than the preview lol

[blazing wharf]

You can also just use the tag, https://github.com/EpicGames/UnrealEngine/releases/tag/5.0.0-preview-1

[full depot]

Which I will

[paper hound]

Any idea on how to fix UE5p1 FCoreDelegates::OnControllerConnectionChange.AddUObject(this, &UShooterGameInstance::HandleControllerConnectionChange);

'FDelegateHandle TMulticastDelegate<void (bool,FPlatformUserId,int32),FDefaultDelegateUserPolicy>::AddUObject<AGameMode,>(UserClass ,void (__cdecl AGameMode:: )(bool,FPlatformUserId,int32))': cannot convert argument 2 from 'void (__cdecl AGameMode::* )(bool,int32,int32)' to 'void (__cdecl AGameMode::* )(bool,FPlatformUserId,int32)'

Found it, in case people have issue with it, now it's not int32 anymore the second value, it's FPlatformUserId that used to be converted to an integer...

[opaque phoenix]

So chaos is enabled by default in preview 1. Does that mean it is usable now?

Correction : Intended to be usable on stable release?

[paper hound]

Preview is not supposed to be "usable" XD

last time i tried it was very "jumpy"

[opaque phoenix]

I mean it seems like epic is gonna be nudging people into it on stable release as well thats what I mean. Like oodle is on by default in 4.27

[wheat salmon]

Does anyone experience an issue with floats that are exposed on spawn? I'm not sure if its only numbers, but for some reason my float values are not set on SpawnActor. But other properties like structs, or arrays, the owner etc are set. I don't get what's the issue oO

[gilded pecan]

What commit is 5.0.0-preview-1 ?

[gilded pecan]

I somehow missed it. Cheers.

[hazy moat]

i more wonder what VS epic used to build pr 1? 😃

2019 or 2022

[wheat salmon]

hmmm BTW works fine with ints (Tick Count)

[eager hedge]

almost definitely 2019. They build with the lowest supported version.

[hazy moat]

thanks

For me it is faster to compile than to download, somehow their minimum release is 12 gb size

download

i try my luck and launch compilation on 06288f0

[gilded pecan]

Epic servers fluctuate massively in regards to download speed.

I had to pull 4.26.2 a few weeks ago for work and maxed out at around 79MB/s. I'm barely hitting 20MB/s now.

[wheat salmon]

ohhh. ok. It tries to find a double property, but obviously I have a float property. so why is real a double and not a float <.<

[gilded pecan]

It is my understanding that real internally switches between both depending on use case and on how much precision is needed. I could be wrong though.

[wheat salmon]

hm but that's bad if I want to use it to set an actual float value and it tries to set a double <.<

hm ok, I feel the issue is the Spawn Actor node that wants a double for a float, argh.

[vale hill]

Sounds suspiciously related to lwc change for doubles

[wheat salmon]

Well depends. It doesn't make sense, as:

UPROPERTY(...)
float bla;

has nothing to do with LWC. Sure, they changed stuff to it is possible, but why does the header tool create a FDoubleProperty for an obvious FFloatProperty?^^

[vale hill]

Probably not related - was on my mind because fixing hundreds of errors in a plugin cause fvector defaults to double

[wheat salmon]

yeah I'm well aware of this change 😄

hmm the header tool does mark it as FloatProperty. Why does the blueprint script looks for a DoubleProperty

[vast wing]

Do we know how the path of UE5.0.0 Preview tracks with releases of 5.1.0 Main? Is it now parallel, with "Preview" releases just coming a little later?

[indigo cedar]

lol

[gilded pecan]

ue5-main is not just UE5.1. It's the main dev branch that will be broken out into UE5.1/UE5.2, etc.

[indigo cedar]

I was just talking about LWC in ue5-general.

[jade bolt]

Any way to go from ue5 source > ue5 preview? It mostly converted fine but I get the usual Failed to open map file. This is most likely because the map was saved with a newer version of the engine. (because technically 5.1 > 5.0 preview)

[vast wing]

I get that, sorry for not being more clear. I just want to understand the relationship of Main to Preview; obviously EA was not parallel to Main. I'm assuming Preview is parallel, but just wanted to check both if that's the case, and if it's now better to go with upgrades from the launcher than with continuing to do builds?

[quaint kindle]

so the preview is likely the 5.0 source

the good news is that people will start convert their scripts/projects or plugins to the 5.0

[dry halo]

Preview is the same development as the 5.0 branch, the only difference is it is a tagged commit in that branch which we say "We think this is in a decent place, check it out and let us know what you think". The only real difference between now and the 5.0 branch before is that the branch is more heavily locked down so there should be no new features but there will be fixes to ensure things perform to a level we're happy with.

The development of 5.0 is not parallel to ue5-main. Fixes made in 5.0 will merge back to main but things in main will not flow to 5.0 outside of exceptional situations where small things are merged manually. ue5-main is a separate development and is not intended to be interoperable with 5.0 which we try to make explicit by changing the version in main to 5.1. Once 5.0 is fully released and we're further along in development we'll create a new branch from main to become the 5.1 development branch and main will become 5.2

[gilded pecan]

Hex edit 😸 .

[gilded pecan]

Congrats on the milestone!

[dry halo]

Thanks! Very excited (and mildly terrified) to see it hit public previews

[quaint kindle]

so the preview is the same version use to make matrix demo?

[dry halo]

Ish? That was a custom branch to allow us to regulate the flow of engine changes and we paused it at some point to ensure we had a stable version to work from. The branch was from the UE5 development branch though so it's pretty much the same stuff.

The actual project we'll release eventually will be on the standard UE5 version you can get in the launcher

[quaint kindle]

anytime soon ?

[gilded pecan]

Any favorite features in 5.0 that are a bit under the radar / not in the spotlight so far ?

[indigo cedar]

@gilded pecan , the individual actors in the map.

Allowing multiple people to work on a single map, without having to worry about working over each other.

Also, this one. OpenCV Plugin (Beta). OpenCV is now a standalone plugin. The plugin uses OpenCV version 4.5.4 and adds new Blueprint nodes, such as for ArUco marker tracking and chessboard tracking.

There is a real lack in supporting non c++ integration into UE, compared with Unity.

https://unity.com/products/machine-learning-agents

Compare that to what you see in UE at the moment.

That's why I'm happy to see the OpenCV integration into BP.

[torpid valve]

the ML in engine as good as as what is done with it

youu have framework

it's made in code

there tools being made and exposed to engine using ML

[dry halo]

I haven't been keeping track of what people are talking about to know what is and isn't under the radar but I'm a big fan of the Geometry Scripting plugin that lets you dynamically create and edit meshes using blueprint nodes or python.

[torpid valve]

I haven't expected it, but really hoped Motion Matching will be in less experimental state in 5.0 (;

[plucky igloo]

Anyone know which branch is the 5.0 preview on github?

[wispy finch]

the only thing epic should really improve are the documentations. sometimes examples would be really helpful... i only say GAS or UnitTesting 😄

and yes i know there is an example project for this

[plucky igloo]

@lofty idol thanks!

[lone hawk]

Is Geometry Scripting meant to replace PMC?

or is it just adding on to it, PMC was pretty limited and slow compared to some other solutions

and to this day I never figured out why PMC seams don't work, still bitter about it

[lone hawk]

Is this a 4.27 feature? Just now seeing this for the first time

Thanks BTW

[dry halo]

It was at least 4.26 as Ryan wrote up a nice post talking about the Interactive Tools Framework in 4.26 and that talks about generating FDynamicMesh3s:

http://www.gradientspace.com/tutorials/2021/01/19/the-interactive-tools-framework-in-ue426

But all of this stuff is being iterated on pretty heavily so the stuff in UE5 is quite a bit ahead of that feature wise. Plus all the Geometry Scripting stuff is new

[lone hawk]

Cool! Lol guess I lost track of time with how long ago I was doing procedural meshes

[dry halo]

I haven't found much time to sit down and play with it all yet but I keep seeing cool gifs in status update emails and it's exciting

[latent iris]

I'm so jelly

I wanna see these gifs

[full depot]

BTW has anyone got any issue since preview 1 (or 5.0-main) on Chaos rigid bodies ? I've got weird behaviors depending on whether my mesh has a spherical/box collider or a convex collider.

Like, attach 2 convex colliders, and the child will ignore collisions. But if you attach two box colliders, it works as expected (as in, they both get collisions)\

[dry halo]

There'll be plenty of gifs and videos I'm sure as we get to a full release. We generally don't like showing or documenting things until the full release as things are changing often until then

[dry halo]

to tide you over, Ryan, one of the main devs on the geometry stuff, did a video a couple of months back showing him using the modeling tools he's been working on: https://twitter.com/rms80/status/1470198752145293316

Ryan Schmidt (@rms80)

“Lighting is hard. #3December day 2 - Scooter! Everything modeled in UE5.0 Modeling Mode. @Sketchfab https://t.co/5ozk27aH9L“

▶ Play video

Twitter · Dec 13, 2021, 1:07 AM

[coarse lion]

Someone pointed on Twitter that the markertplace plugin still have better workflow for level creation, is there some improvements about that on the tool ?
Like mainly purpose bet will be to use it for speedup level design

[full depot]

I actually narrowed down the issue, but I'm very confused. Here's what happens. Fresh engine install, fresh project. I use only the template map and a mesh from /Engine/VREditor/BasicMeshes/SM_Pyramid_01.SM_Pyramid_01'

[coarse lion]

@lofty idol https://www.unrealengine.com/marketplace/en-US/product/mesh-tool

[full depot]

The only difference is that on the left, the bottom pyramid is the parent, while on the right, the top pyramid is the parent

Is that something to file a bug for ? Or am I missing something here ?

[steep wharf]

git reset --hard 5.0.0-preview-1? Is that correct to get my 5.0 branch to the preview? It's gone to a commit from 4d ago "Fix for Unity name collision on MakeArrayView."

[full depot]

Yeah that's the one commit

[steady tendon]

no updates on the pose search plugin huh. Coming in 5.1 maybe

ue5 is amazing though, really respect the updates they’ve brought. can’t wait

[desert parrot]

So this is to use the preview did that work?

[steep wharf]

did for me

[slim violet]

I can't remember, which line do I put the public:

?

nvm. Figured it out.

[latent urchin]

Greetings. Is there a global toggle to use float for FVector and stuff?
I guess it's this line here:

File: E:\DevUE\UnrealEngine2\UnrealEngine\Engine\Source\Runtime\Core\Public\Misc\LargeWorldCoordinates.h
17: #define UE_DECLARE_LWC_TYPE_3(TYPE, DIM, UE_TYPENAME)            UE_DECLARE_LWC_TYPE_EX(TYPE, DIM, UE_TYPENAME, double)

[wheat salmon]

So. I narrowed this down to the fact, that in the end Unreal calls the setDouble property function instead of the setFloat as it for some reason uses a FDoubleProperty. My first thought was that UHT parses the code wrong, but looking into the generated file shows that the exposed property is marked as FFloatProperty.
The other thing I figured is, that in the Blueprint Unreal tells me, that the property is a Float Real, so the issue must be somewhere deep in the SpawnActor Blueprint node I think.
What I know: At some point my FFloatProperty becomes a FDoubleProperty which obviously is not able to set a float property^^
Does someone have an idea where I'd need to look at?

[lofty bear]

lol.. I spent the entire weekend figuring out how to make an installed build of the 5.0 branch 🤡

[blissful flax]

does any one know what branch is P1?

can't seem to find it on github

[lofty bear]

The branch is 5.0. The commit is tagged with 5.0.0-preview-1. It's from february 18th.
07493b29bd3344e92d24ac6bb2a71d85a1c1ef13

[blissful flax]

ah thank you

[limpid light]

Why would you want to do that? If you need a float vector you can use FVector3f or simply TVector<float>.

Epic has done a lot of changes to the engine to use double precision + optimizations so it wont be slower.

[median gulch]

So is the preview ahead or behind the ue5-main branch? Or, to rephrase the question, if I switch to the preview version, will assets I saved on ue5-main still work? Has anyone tried it out yet?

[fallen briar]

behind

[opaque phoenix]

ue5 main is version 5.1, preview is close to and likely behind 5.0 considering how often it gets commits

[median gulch]

Thanks

[static copper]

Billing mass as an AI system is accurate but also somewhat misleading

It's better to talk about the different modules individually

Oh well, it's not a bad bullet point

[willow flame]

I don't like it honestly. I can see what they were going for, but it seems pretty virtual-heavy for what is supposed to be a sort-of ECS system.

Which is a bit silly given that sort of thing is exactly what ECS is supposed to not do

[static copper]

Yeah the virtual fragment had me ready to throw holy water at my screen

[willow flame]

But I guess they have to work within some engine constraints etc for tooling

[fallen briar]

this right here.

Unity went down the ECS path first and has run into so many problems biting off more than they can chew

this is a decent first step from Epic

[willow flame]

Will be interesting to see what they use MASS for though outside of AI, but tbh I'll probably still just do my own thing when I need something to be done at scale.

Can totally see what they are trying to do with it though, but it's still not that much different to actors + comps really :/

[latent iris]

Depends for me. If it works well enough, might be good enough for people like me.

[willow flame]

Just, using USTRUCT instances instead of components

[latent iris]

My first testing with it though - meh.

[willow flame]

So far it seems like a way to abstract your actor + component simulations into just data

So you can simulate stuff at scale without all the overhead of actors + comps

[static copper]

yeah Mass is a sideshow and not a completely new gameplay framework (animation, physics etc)

[lofty idol]

Will there be a second step though? Mass isn't used by Fortnite is it?

[static copper]

not really the same thing

Mass was used for crowd sim in the Matrix demo

[fallen briar]

for good reason.

[static copper]

absolutely lol

Epic is more concerned with keeping stuff that works

to a fault some would say

[willow flame]

ECS is overrated IMO 😄

[static copper]

for massive scale games it's a legit thing

but for most games it's religion at best

[lofty idol]

Honestly, so far I have doubts whether Mass will continue development. We have modular gameplay framework initiative, then the scripting language coming up (though doubtful whether that'll be included in the engine), and now Mass.

[willow flame]

Yeah, but i think for massive scale you always need some kind of bespoke solution

[static copper]

some people (me) love thinking in composition so I'm definitely a zealot

[willow flame]

this is now yet another an ECS discussion

[lofty idol]

Fortnite will be the important metric for success for the 3, and only the first 2 is being used on it

[static copper]

Mass is barely a few months old

not really sitting around collecting dust

[willow flame]

Depends what other internal goodies epic are working on too I guess

I find it hard to believe they made MASS purely for the sake of a tech demo

[lofty idol]

But so far it isn't picking up steam either ¯_(ツ)_/¯

[willow flame]

For an extremely crap film, nonetheless

[fallen briar]

nothing that's been publicly stated as far as I'm aware. I'm not an active Fortnite player though so I'm not sure if there's anything recent that hints at possibly being done with Mass

[latent iris]

Maybe for some upcoming thing in Fortnite

[static copper]

they already have an ECS for the sequencer transform internals

[willow flame]

I guess Fortnite is a platform in an of itself these days

To deliver you with hot and spicy new C O N T E N T

[lofty idol]

They've done it before, we've had procedural foliage tools in the engine for ages, and they've been left to rot.

[willow flame]

tbf they're useful in their own right though

[static copper]

I'm more frustrated with Network Prediction getting killed off honestly

[lofty idol]

EQS never made it out of the beta, though it is technically feature complete

[static copper]

that would have been more of a gamechanger

[willow flame]

Yeah it's sad to see Dave leaving 😦

They've done too much work on that to leave it hanging

Someone has to pick up the torch

[torpid valve]

It is not as bad as it seems

the virtual entry points

are rare call sites

unless you choose to put your virtual function into tight loop

ie. Calling one virtual to iterate over 10000 entities

won't change anything

[cedar tree]

wat

[torpid valve]

despite how it looks, there bare minimum virtual required to get it working with engine, and make it extensible, at least that what I got from talking about it with the author (;

[static copper]

last commit was Dave nuking the readme and saying it's pretty much toast

[torpid valve]

yeap

but it's not nuked yet

the async part is

which depending on perspective might be just as well nuked 😄

[static copper]

https://tenor.com/view/pay-respects-press-f-call-of-duty-respect-press-x-gif-22309724

[static copper]

yeah as long as the actual hot code isn't vtable madness it doesn't matter that much

[willow flame]

Just going to direct people to the first line of that Readme when they say "i want networked vehicles where do I start"

[static copper]

afaik it stores things in a pretty tight way so I don't care if the higher level processes are OOP style

[willow flame]

It looks like they are still planning to refactor character physics into it though, but the actual physics integration is a noop

[static copper]

I'm happy with a new CMC

[torpid valve]

the rollback physics also got nuked

[willow flame]

Doesn't shock me tbh

Not an easy problem to solve

Heroic effort though

[torpid valve]

yeah I guess it will be easier to just correct fixed step

with fixed step you have similiar enough sims

[willow flame]

IIRC the physics integration required fixed step anyway

But the problem seems to be resimulation for rollback is just way too expensive

For anything at scale anyway

Fine if you're making rocket league

less fine if you're making an open world

[static copper]

the other problem they hadn't gotten going yet was "bubbles" of cause and effect

resim causing a resim causing a resim

I forget what the plan was

smaller simulation state = easier rollback netcode

[willow flame]

Urgh. Such a depressing commit

GG though

[torpid valve]

yeah Really hoped that they move some of gameplay code to async by release

oh well

[willow flame]

Can't say they didn't have a solid bash at it

[torpid valve]

at least the part I do is fixed tick

[static copper]

what does setting up true fixed tick even look like? just a thing called every n ms?

or does it need to be a completely separate thread?

there's no way it's literally just a tickrate

[torpid valve]

it really depends how accurate you need it to be

[willow flame]

IIRC it forces the whole engine into fixed mode no?

[torpid valve]

nah

im it's option but im not doing it

[static copper]

NP did at one point

[willow flame]

Yeah

[torpid valve]

some things I Have just component setup to TickRate -=0.033

and it's good enough

[static copper]

if it doesn't need to be perfect that

that's probably just dandy

[torpid valve]

some are more advanced, I do frame counting, and do separate updates for rendering

if it needs to render something at 120 fps but updates only 30

[static copper]

splitting rendering and simulation is the big goal, yeah

[torpid valve]

yeah it's not that hard to do actually

but If you don't have framework for it

it's just loads of boilerplate code

not to mention, unreal is not friendly for updaeting transforms

and now you have to do it twice -;-

still for me it's generally worth it

i have fixed gameplay code which runs at the same rate on server and clients

[cedar tree]

has anyone figured out how to use the new lane based navigation system? 🤔

[static copper]

I got some lanes made but I can't get stuff to use them yet

[cedar tree]

or wait, are these "zone graphs"

no idea

[hazy moat]

anyone else tried to compile 5.0 branch today? did it compile?

[solid cypress]

Not sure how much relevant to UE but this could be related to some R&D for zonegraph

https://twitter.com/MikkoMononen/status/1493245534706016257

Mikko Mononen (@MikkoMononen)

“The fat funnel thing is getting where I wanted to take it. I wanted nicely aligned portals, but not too many. Each segment (blue) becomes a quad, the obstacles are handled in UV space. With clipping there's a lot thin sections in the result, which then gets simplified. https://t.co/BHMT6jWWlA“

Twitter · Feb 14, 2022, 3:27 PM

[woeful hollow]

the zone graphs are easy enough to set up, I haven't got as far as actually having entities using it yet, still poking around.

[torpid valve]

yeap it's probabaly it

this guy is working on it for Epic

[solid cypress]

yup, looks like cool pathing for any size agents on single nav data.

[torpid valve]

either way, ZoneGraph is not really working. Right now it is more proof of concept

there is no tools, little support in StateTree

a setting up, is really lots of clicking 😄

[kindred walrus]

built dedicated server from tagged release 5.0.0.preview 1 and got this error when I run the server:

Assertion failed: GDefaultMaterials[Domain] != nullptr [File:E:\dev\UnrealEngine-5.0.0-preview-1\Engine\Source\Runtime\Engine\Private\Materials\Material.cpp] [Line: 537]
Cannot load default material 'engine-ini:/Script/Engine.Engine.DefaultMaterialName' from path '/Engine/EngineMaterials/WorldGridMaterial.WorldGridMaterial'

anyone else facing a similar issue?

actually a bunch of default editor assets are not loaded because they're tagged as editor only data, e.g.:

LogUObjectGlobals: Warning: Failed to find object 'Texture2D /Engine/EngineResources/WhiteSquareTexture.WhiteSquareTexture'
Error: CDO Constructor (Canvas): Failed to find /Engine/EngineResources/WhiteSquareTexture

[torpid valve]

they should not load on server

(same as materials)

[woeful hollow]

anyone found any useful debugging stuff for StateTree?

GameplayDebugger tells you what ST is running for an entity, but it isn't selecting first state

[kindred walrus]

I agree, but then the server build triggers an assertion fail and crashes

[kindred walrus]

not in my project. The assertion that failed is in editor code 🤔🤔🤔

[torpid valve]

So it will be fixed

just wait (;

[wheat salmon]

what's broken on it? 😮

oh, ok :/

[woeful hollow]

ugh, still no 'implement virtuals' support in VS2022....y tho

[wheat salmon]

btw. anyone else experiencing that float values on an actor if exposed on spawn are not set at all, because the engine tries to set them as double?

[woeful hollow]

you have to type the declaration though....VAX you just select 'implement virtuals' and a new window opens and you just check which virtuals you want to override, and ta-ta, they're all done for you

I'm between jobs this week, on my personal computer, my VAX license expired

I thought 2022 might have got close to feature parity

my license is years old, think it only covers up to 2017

[torpid valve]

I do recommend ReSharper

it's cheaper

and it's get cheaper as you keep renewing

and it works better than vax

[woeful hollow]

can't bring myself to shell out just for a week, and using unreal with vanilla VS is just making me angry

oh ok, that might do

ta

been meaning to give Rider a whirl actually

[wheat salmon]

If you are looking for an awesome coding exp: go for it. If you have a lot of hard debug sessions and don't want to use VS just for debugging, you might want to wait for Riders Debugger to improve (it already is good, but still some stuff that VS has missing or is not as good)

[woeful hollow]

I could live with just nipping back to VS for tricky debugging stuff, as long as the basics work in rider

installing now anyway

[wheat salmon]

^^ do it 😛 I use it since the reveal and for ~ 5 months at work and I'm addicted 😄

[woeful hollow]

seems nice and responsive so far, already a plus 🤞

[wheat salmon]

^^ be aware its EAP, so it can have some issues

[zealous yarrow]

Been using it for over a year, haven't touched VS once in that time

Also yet to have any issues with their debugger

[woeful hollow]

hmm, symbol search is missing stuff

[wheat salmon]

your symbols or unreal symbols