#engine-source | Unreal Source | Page 32

summer cairn Jul 4, 2019, 2:56 PM

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Hey guys does anybody have information about the pak-precache ?

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Content/SOME_MAP.pak added to pak precacher

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this is the log line

round pagoda Jul 5, 2019, 10:46 AM

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Hey guys, I'm using the source-built version of UE4 from github. When I select 'build solution' with my UE4 project loaded, what exactly am I asking VS to do? I was just expecting it to re-generate the binaries file but its taking ages. Did I accidently tell it to re-build the engine as it's part of the 'solution'? Finding C++ videos using the source UE4 is hard -.-

📎 unknown.png

spiral mortar Jul 5, 2019, 11:23 AM

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Sometimes crap like that happens

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Maybe you didn't built the engine in the same config or smthg

stoic crane Jul 5, 2019, 12:22 PM

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look at the output window to see what it is doing

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lol

last cypress Jul 5, 2019, 12:40 PM

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look in configuration

somber goblet Jul 5, 2019, 5:56 PM

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Does anyone here have any experience in building the engine source using cake? as in the build system

round pagoda Jul 7, 2019, 8:46 PM

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So; I'm using the engine built from source so that I can cook/build a server. If I want to collaborate with someone on the level (and they will never need to build the project), can they edit the project using the precompiled version of the engine?

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So my version is using 4.22.3 source-built, I upload to Git. They pull and use their 4.22.3 pre-compiled but don't upload the .sln or .uproject files

stable hemlock Jul 7, 2019, 8:48 PM

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I'm looking for source code for the game engine, which structure is

round pagoda Jul 7, 2019, 8:48 PM

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@stable hemlock Just go to the Epic Games Git, they have all the source code there and instructions on how to compile it using VS

stable hemlock Jul 7, 2019, 8:49 PM

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Thank you

stoic crane Jul 8, 2019, 5:22 AM

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@round pagoda yes you can do that. Infact, it's sort of what I do. I have installed build, that everyone develops with., and then I have scripts that use the source version to make release builds.

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and the .uproject never changes associations

round pagoda Jul 8, 2019, 6:46 AM

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Oh, so you develop with the pre compiled version as well? So everyone's uses the uproject associated with that, and then you change the engine to source to do a build?

stoic crane Jul 8, 2019, 6:50 AM

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i just use RunUAT.bat passing the .uproject, with the source version

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so the uproject doesn't change

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it just makes the build.

strong oxide Jul 8, 2019, 11:51 AM

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trying to compile a ue4 branch with gameworks

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and ive gotten a warning that its detected a compiler newer than vs2017

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now ive also got 2019 on here and when i tried to compile before it told me i had unsufficient access which if im remembering correctly, was cause of a compiler issue

strong oxide Jul 8, 2019, 1:58 PM

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oh @low dust it's your engine branch for 4.20-gameworks

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it hasnt failed yet because it's still compiling but it failed once in vs2019

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ah so even in 2017 it's STILL using the 2019 compiler

strong oxide Jul 8, 2019, 2:22 PM

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14.21.27702 it's trying to use this vs compiler

somber goblet Jul 8, 2019, 6:08 PM

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Anyone happen to know if you can use any of the build batch scripts to build the engine source itself?

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Experimenting with it now, but if someone already knows the proper way, that would be super ❤

spiral mortar Jul 8, 2019, 7:03 PM

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What do you mean @somber goblet ? A .bat that builds the engine?

somber goblet Jul 8, 2019, 7:03 PM

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I think I figured it out

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I was looking for a batch file that lets me build the source without having to invoke msbuild/cl.exe etc by myself

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It turns out that UAT can actually do this for you

spiral mortar Jul 8, 2019, 7:04 PM

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yup 😃

somber goblet Jul 8, 2019, 7:04 PM

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So generating project files and just running UBT with "UE4Editor Win64 Development" for example seems to be running the entire build chain

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it's still running though, so not sure if it works yet

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I think I had to read batch files for like 30mins to figure that out... uuu.. sometimes the lack of docs is kind of annoying

spiral mortar Jul 8, 2019, 7:05 PM

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

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Worked a few versions back, should still be somewhat valid

somber goblet Jul 8, 2019, 7:06 PM

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I think that one will actually create an installed version of the engine though

spiral mortar Jul 8, 2019, 7:06 PM

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Yep

somber goblet Jul 8, 2019, 7:06 PM

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I don't need that, I just need it to then be able to compile a test project, good to put on the clipboard for later use though, thanks!

spiral mortar Jul 8, 2019, 7:07 PM

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Oh right the options are for that specific script

somber goblet Jul 8, 2019, 8:27 PM

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Well that worked

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but it only built the editor, anyone know if there is a good argument to give to UAT to build all projects?

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Hmm, I guess this won't work since most of the tool programs don't have targets

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Sigh

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So I really have to build all the support projects I need like UAT manually?

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And invoke UBT on every single tool program I need?

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I wish there was an easy way to see what VS does behind the scenes when you do build all

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But I guess it does exactly that

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runs UBT on projects with targets, and builds the C# projects using MSBuild

somber goblet Jul 8, 2019, 9:48 PM

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oh... maybe I got it

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Using devenv.com might work

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uuuuuuhm

low dust Jul 9, 2019, 6:34 AM

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@strong oxide I think you need small modifications to be able to compile that 4.20 with vs2019 but I dont even have it installed nor do I test building on any nondefault vs version

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On 4.20, ue4's default is vs2017

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I think it still is on 4.22

strong oxide Jul 9, 2019, 8:14 AM

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@low dust Yeah, I've switched to vs2017, it's still defaulting to a compiler from the 2019 folder```
Using Visual Studio 2017 14.21.27702 toolchain (C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.21.27702

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but then i keep getting things like this ```
ActionGraph.IsActionOutdated: SharedPCH.Engine.cpp: Produced item "SharedPCH.Engine.h.pch" was produced by outdated command-line.
ActionGraph.IsActionOutdated: Old command-line:
ActionGraph.IsActionOutdated: New command-line: C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.21.27702\bin\HostX64\x64\cl.exe @"C:\UnrealEngine-4.20-GameWorks\Engine\Intermediate\Build\Win64\UE4Editor\Development\Engine\SharedPCH.Engine.h.pch.response"
ActionGraph.IsActionOutdated: SharedPCH.Engine.cpp: Produced item "SharedPCH.Engine.h.pch" doesn't exist.
ActionGraph.IsActionOutdated: SharedPCH.Engine.cpp: Produced item "SharedPCH.Engine.h.obj" was produced by outdated command-line.

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for pretty much everything

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maybe ill uninstall vs2019

spiral mortar Jul 9, 2019, 8:29 AM

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@somber goblet I guess you could do something similar to the install script used in the command I posted before

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https://github.com/EpicGames/UnrealEngine/blob/375ba9730e72bf85b383c07a5e4a7ba98774bcb9/Engine/Build/InstalledEngineBuild.xml#L421

strong oxide Jul 9, 2019, 8:52 AM

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Ok, so I've uninstalled vs2019

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and so far so good

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no "wrong compiler"

somber goblet Jul 9, 2019, 12:04 PM

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@spiral mortar Thanks! But I solved it using the vs devenv.com routine. The syntx ended up a bit weird but it seems to build at least on one test machine so far

rocky cloud Jul 10, 2019, 3:49 PM

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Does Unreal Garbage collection move UObjects during collection? (specifically UObjects that are not being destroyed)

elder falcon Jul 10, 2019, 3:49 PM

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no, a uobject will never move

rocky cloud Jul 10, 2019, 3:51 PM

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hmm... so there is no "compacting" going on?

elder falcon Jul 10, 2019, 4:09 PM

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no

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only freeing of empty chunks and reusing of objects

spiral shoal Jul 11, 2019, 5:03 AM

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Does Unreal Engine Supports Exports Geometries to .stl file format , I have found one Class which does it for Landscape . And found Fbx Exporters for Static Meshes.
Anyone have worked me with this , i need some guidance .

somber goblet Jul 11, 2019, 1:44 PM

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Urg

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I finally got the build script to do exactly what I want

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But it doesn't run on the agents because of dialogs

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I can suppress UAC no problem, but does anyone know how to suppress the "Register UE4 filetypes" dialog from setup.bat?

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digging through the script now, but if someone already knows if there is a flag or something, that would be nice

elder falcon Jul 11, 2019, 1:45 PM

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there is -unattended

somber goblet Jul 11, 2019, 1:46 PM

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nice

elder falcon Jul 11, 2019, 1:46 PM

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for the version selector

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I'm not sure how you get the script to pass it to it

somber goblet Jul 11, 2019, 1:46 PM

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Hmm, I guess setup.bat is just invoking the version selector

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yeah

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hmm

elder falcon Jul 11, 2019, 1:46 PM

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just modify Setup.bat I guess

somber goblet Jul 11, 2019, 1:46 PM

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I'd like to avoid that, but maybe I have to

elder falcon Jul 11, 2019, 1:47 PM

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how does this even work

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📎 unknown.png

somber goblet Jul 11, 2019, 1:48 PM

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I'm looking at the same thing

elder falcon Jul 11, 2019, 1:48 PM

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📎 unknown.png

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it's checking for - not /

somber goblet Jul 11, 2019, 1:48 PM

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Maybe it's worth doing a PR for this

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But it seems like this should already be possible

elder falcon Jul 11, 2019, 1:48 PM

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oh

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br_big_brain

📎 unknown.png

somber goblet Jul 11, 2019, 1:49 PM

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it probably translates them

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yeah

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haha

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so silly

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but nice I suppose

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I might add optional arguments to setup.bat to optionally add unattended then

elder falcon Jul 11, 2019, 1:50 PM

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I like how it doesn't do this for linux and the linux version of setup.bat uses - correctly

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br_unreal

somber goblet Jul 11, 2019, 1:50 PM

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And maybe do a PR for it

elder falcon Jul 11, 2019, 1:50 PM

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hmm

somber goblet Jul 11, 2019, 1:50 PM

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I wonder if the expectation is simply that ppl should modify setup.bat

elder falcon Jul 11, 2019, 1:50 PM

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I was gonna suggest making Setup.bat pass through any extra arguments

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but it already does that for git dependencies

somber goblet Jul 11, 2019, 1:51 PM

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:/

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I mean I guess you could still pass them to both?

elder falcon Jul 11, 2019, 1:52 PM

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then if you pass any args to git dependencies, it will break because the version selector checks for a very specific number and order of args

somber goblet Jul 11, 2019, 1:52 PM

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That only wouldn't work if both gitdependencies and version selector expects the strict order

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I'm loading the sln now to check what the gitdependency one wants

elder falcon Jul 11, 2019, 1:53 PM

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the problem is this

📎 unknown.png

somber goblet Jul 11, 2019, 1:53 PM

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ouch, missed that one

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back to plan A then

elder falcon Jul 11, 2019, 1:53 PM

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it's very br_big_brain

somber goblet Jul 11, 2019, 1:53 PM

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or patch that code

elder falcon Jul 11, 2019, 1:54 PM

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actually thinking about it

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I don't remember ever seeing this prompt

somber goblet Jul 11, 2019, 1:54 PM

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Me neither

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But I'm getting it on the agent now

elder falcon Jul 11, 2019, 1:54 PM

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ah it's because it doesn't run if it's already set up

somber goblet Jul 11, 2019, 1:54 PM

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That is what I assumed as well

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It's a clean agent

spare phoenix Jul 12, 2019, 8:56 AM

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so i guess i gotta modify engine source to add new Sequencer track types

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shame this isnt extendable via plugins

elder falcon Jul 12, 2019, 7:12 PM

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anyone here managed to correctly set up MinidumpDiagnostics so it will symbolize a crash dump locally for testing?

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I am finding absolute zero documentation about it other than the source code and this random wiki page which has a few confusing lines about it at the bottom https://wiki.unrealengine.com/Unreal_Engine_Crash_Reporter

limber jacinth Jul 12, 2019, 9:22 PM

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@elder falcon had very limitied success with minidumps

elder falcon Jul 12, 2019, 9:27 PM

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I actually think I just figured it out

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needs more experimentation

elder falcon Jul 12, 2019, 11:02 PM

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nope that didn't work

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a minidump created on another pc only has ntdll in the callstack in the diagnostics file

elder falcon Jul 12, 2019, 11:23 PM

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it doesn't seem to open in vs either

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br_egg why is there zero documentation on how to do something useful with crash dumps

last cypress Jul 13, 2019, 1:48 PM

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and how to turn off crash dumps, because it is laggy a lot

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better to have an opportunity to attach VS and debug

elder falcon Jul 13, 2019, 2:42 PM

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huh no

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this is for when the game crashes for users

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I want to be able to at least get the symbolized callstack with line numbers

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(shipping the pdb files is not an option)

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I think I found a solution though, MinidumpDiagnostics is too br_big_brain for me to fix it but I can make a similar, simpler tool that manually symbolizes this part from the CrashContext-runtime.xml

📎 unknown.png

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seems like the minidump files themselves are dead when generated by other pcs even with the bundled dbghelp.dll

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but the PCallStack looks intact

stark parcel Jul 13, 2019, 5:22 PM

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is there any way to make building from source faster. As of now it takes around 4 hours to build after every time I edit something

elder falcon Jul 13, 2019, 5:27 PM

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4... hours?

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iteration usually takes 10 seconds for me

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or are you modifying core headers, and using very slow hardware?

stark parcel Jul 13, 2019, 5:38 PM

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Core headers? I have like no idea what that is

And I’m using an Alienware 17r5 laptop. It’s as powerful as a desktop.

Yet I’m building it on an external hard drive and wouldn’t have it on my ssd or my 1 TB internal data drive

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Should I move it to my ssd because I wouldn’t do that because of it being my system drive

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Currently just building a c++ project using the 4.23 preview source code is taking longer than expected

It’s at (91/1973) as of when I’m typing this

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And building the engine itself is over 3,000

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And this is without using incredibuild (can’t renew my license since i stopped using it in late 2016)

elder falcon Jul 13, 2019, 6:03 PM

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make sure you actually aren't using incredibuild (just having it installed will make ubt pick it up, and without a license, that will slow everything to a crawl)

stark parcel Jul 13, 2019, 6:03 PM

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It’s uninstalled

elder falcon Jul 13, 2019, 6:03 PM

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ok, so the ~2000 actions seems normal for first time building the engine

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you shouldn't see this every time you make a change

stark parcel Jul 13, 2019, 6:04 PM

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Ok

elder falcon Jul 13, 2019, 6:04 PM

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I'm assuming you would get a huge boost to compile time by moving your engine and projects off that external hdd

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ideally everything is on a m.2 ssd

stark parcel Jul 13, 2019, 6:05 PM

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I don’t have enough space for both on my ssd

elder falcon Jul 13, 2019, 6:05 PM

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buy a bigger ssd / move something else you don't use often to the hdd

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compiling the engine from a hdd is slow

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this is probably your main bottleneck

stark parcel Jul 13, 2019, 6:06 PM

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Ah ok. I’ll probably see if I can install it to my ssd

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And can I build with visual studio 2019? The github page says I need to use visual studio 2017 to build the engine.

elder falcon Jul 13, 2019, 6:12 PM

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I'm using 2019

stark parcel Jul 13, 2019, 6:12 PM

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Ah ok.

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So I’ll definitely make some room by uninstalling 2017

stark parcel Jul 13, 2019, 6:36 PM

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I’m just about going to make it. Uninstalled some extra crap (like Microsoft office) and visual studio 2017

elder falcon Jul 13, 2019, 8:19 PM

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you should have around 100GB free space for the engine folder

stark parcel Jul 13, 2019, 8:28 PM

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I did. It was done in a half of an hour!

elder falcon Jul 13, 2019, 8:43 PM

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yeah that's more like it

spare phoenix Jul 14, 2019, 3:12 AM

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2019 is better for ue4

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Generateprojectfiles -2019

limber jacinth Jul 14, 2019, 2:07 PM

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dont build the entire engine

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just build your project

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and it will build what is neded

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needed*

void hull Jul 14, 2019, 8:17 PM

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I have made useful general purpose change to engine that fixes annoying zoom limit. Is there any reference how to proceed and create pull request? I haven't done it before.

granite dust Jul 14, 2019, 10:05 PM

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It's pretty easy. Pull master (or whatever branch you think this should be applied), make exactly one commit that fixes the issue or adds the feature. Make sure your style matches UE4 style and that your code is the right amount of documented. Make a pull request on GitHub for that commit.

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But there's also the politics of getting your pull request noticed and accepted

void hull Jul 14, 2019, 10:44 PM

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OK, will try tomorrow, it is late hour here.

last cypress Jul 15, 2019, 9:12 AM

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some pull requests waiting more then 3 years

brisk silo Jul 15, 2019, 4:09 PM

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@spiral mortar @granite dust any of you checked the ISPC thing on 4.23 preview?

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im thinking of porting my old spaceship benchmark (the ECS one) to ispc, and see if there are any gains

granite dust Jul 15, 2019, 4:09 PM

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I'm locked into 4.22 until Quest launch, I think.

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Although 4.23 might get me some much needed gains..

brisk silo Jul 15, 2019, 4:10 PM

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for ya both, ispc is probably best case scenario for meshing/voxel build

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i dont have a project to test that :/ but im going to check on the ECS bullshit

granite dust Jul 15, 2019, 4:10 PM

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Too risky of an upgrade for my launch timeframe, though

brisk silo Jul 15, 2019, 4:10 PM

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its too early to update to it anyway

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in fact it seems ISPC is windows ONLY

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at the moment

granite dust Jul 15, 2019, 4:11 PM

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I have shipped a preview build to Steam before ;-)

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I think 4.16 preview 3 was my release. I can't remember for sure, though

brisk silo Jul 15, 2019, 4:13 PM

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yolo

granite dust Jul 15, 2019, 4:14 PM

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I was young and reckless

elder falcon Jul 15, 2019, 4:32 PM

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ispc only on windows is how they will ensure that linux always runs worse than windows like it should br_big_brain

spiral mortar Jul 15, 2019, 4:34 PM

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Only on windows?

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dep

brisk silo Jul 15, 2019, 4:39 PM

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for now

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ISPC docs comment it should work literally everywhere

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including consoles and mobile

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so i guess its just due to the build system not being implemented yet

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i think it would be super retarded for Epic to implement something that only runs on windows

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and then have to write every function 2 times

granite dust Jul 15, 2019, 10:11 PM

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Typically epic does stuff on PC first and then PS4 (so they can use the PS4 profiler and debuging tools 😉 )

thick storm Jul 15, 2019, 11:09 PM

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gyou forgot dedicated servers running on linux

fair remnant Jul 18, 2019, 10:44 AM

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Hey guys, is there a way to somehow cache vertex colors from meshes that are painted in UE4?

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We are generating our level procedurally from sublevels and it works great with lots of meshed but as soon as our level designers use vertex paint for additional details the loading causes massive freezes. Without vertex paint we get 20ms load time while with it we get 3000ms, which stalls our gamethread.

Is there any way to cache the paint and preload it, or any alternative. Hitches also happen in-editor while deleting vertex painted objects leading me to believe that there is some large recalculation going on. Why is this a game critical calculation when its only a visual texturing feature?

fair remnant Jul 18, 2019, 1:47 PM

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We found out that there are no hitches when the game is built. Only in the editor there are problems

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😄

strong oxide Jul 19, 2019, 8:36 AM

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@low dust are there any plans for a 4.22-gameworks branch?

low dust Jul 19, 2019, 8:44 AM

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@strong oxide not anytime soon at least

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The renderer change makes upgrades nontrivial and nvidia has dropped the ball on these

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At this point I might skip 4.22 altogether and see if I get some of these running on 4.23 if I get my rig upgraded once it is out. Right now it just takes too much time to work on ue4 as engine build is multiple hours on my end

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If nvidia comes up with 4.22 versions, sure I'll merge them but it is way too time consuming for me to upgrade those atm

spare phoenix Jul 19, 2019, 12:34 PM

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is it easy or the right thing to do to add another render pass to ue4 ?

harsh lantern Jul 19, 2019, 1:27 PM

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hey all, I'm building UE4 from github and it's compiling every file 1 by 1, is that a thing now or can I make it like before, where it would group up a bunch?

pliant pagoda Jul 19, 2019, 6:58 PM

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Can someone point me on where ue4 performs physics replication? Roughly, which files to look into

elder falcon Jul 19, 2019, 6:59 PM

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seems sensible to start with the ones that have physics replication in the name

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why is there even a llvm toolchain in the engine? is someone planning to do cool fancy things with it? https://github.com/EpicGames/UnrealEngine/commit/d039f417068bf964e12d83a87d848e04b48a7a78

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they upgraded it to 8

midnight valley Jul 20, 2019, 9:40 AM

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Is it possible to have a custom memory allocators for UObjects?

hidden hedge Jul 20, 2019, 7:39 PM

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https://docs.unrealengine.com/en-US/API/Runtime/Core/HAL/FMalloc/index.html there are malloc implementations but you probably have to have a good reason to mess with these

FMalloc

The global memory allocator's interface.

elder falcon Jul 21, 2019, 10:06 PM

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damn nice the 3900x builds the engine from scratch in 11 minutes br_animated_thinking

nocturne island Jul 21, 2019, 10:12 PM

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@elder falcon yeah thankfully compiling is very multi-threading friendly

elder falcon Jul 21, 2019, 10:18 PM

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still waiting for mine though

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was someone elses result

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for comparison, with my 7820x building the exact same configuration takes 20 minutes

nocturne island Jul 21, 2019, 11:35 PM

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i have overclocked i9-7900x ( 10-core )... I should run a quick benchmark after a clean

nocturne island Jul 22, 2019, 12:01 AM

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gah... 22:50 to rebuild 4.23 after full clean

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@elder falcon where did you get 3900x compile time

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there needs to be a ue4 compile time benchmark page

true granite Jul 22, 2019, 6:29 PM

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It did so on my first or an all-fresh build...

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subsequent builds it only touches what was changed

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@harsh lantern the thread scrolled by soo fast. that was meant for you^^

strange jungle Jul 22, 2019, 8:28 PM

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Hey guys i have a question is it possible to switch from lambert to oren nayar without having to rebuild the engine from scratch ? if yes how so ? thanks in adavnce

spare phoenix Jul 23, 2019, 10:16 AM

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.usf are part of the "engine"

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but you dont need to rebuild the engine to change them

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https://docs.unrealengine.com/en-US/Programming/Rendering/ShaderDevelopment/index.html

Shader Development

Information for graphics programmers writing shaders.

broken sand Jul 23, 2019, 12:45 PM

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does the epic games launcher recognize source-build versions of unreal engine? found this link here https://answers.unrealengine.com/questions/181195/make-epic-games-launcher-finds-the-compiled-unreal.html, but the answer was a from a few years ago so wondering if things have changed

stable hemlock Jul 23, 2019, 12:57 PM

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Hey ! Anyone has an idea about a change that we could have made. Which modify how the structure are displayed in the editor.
In our case, it displays all structures twice (one well formatted and one unformatted) ?

Like in this example in the editor preferences window :

📎 unknown.png

lament crescent Jul 23, 2019, 12:59 PM

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More examples of the same issue hmmm

📎 BrokenCategoryDT.PNG

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📎 BrokenCategoryBP.PNG

nocturne island Jul 23, 2019, 2:56 PM

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@lament crescent Post definition of MyStruct type

lament crescent Jul 23, 2019, 3:15 PM

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@nocturne island I'll do that in a minute, but it's happening for every struct, whether it's shipped with the engine or from our project, whether it's native or not, even vector are compromised ^^

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MyStruct is an asset:

📎 unknown.png

strange jungle Jul 23, 2019, 3:50 PM

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Hey ! in 4.17 i was able to modify from lambert diffuse to oren nayar diffuse easly by commenting lambert and un comment oren nayar :

📎 Capture5.PNG

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but this whole part isn"t here anymore in the shadingmodel.ush file how can i switch from lambert to oren nayar in 4.22 ? thanks in advance !

nocturne island Jul 23, 2019, 4:01 PM

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@lament crescent happens for every struct? very strange ... can you diff your local engine changes?

stable hemlock Jul 23, 2019, 4:12 PM

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Yes it happens for every struct! I will ask to my supervisor tomorrow to do that, I'm not personally able to do that for now ^^'

lament crescent Jul 23, 2019, 4:15 PM

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My screenshot with the data table above shows that even basic vector of transform are affected, so it's really the way the editor display the struct which is broken, rather than a specific struct itself.

stable hemlock Jul 24, 2019, 10:18 AM

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The solution was that experimental feature which was enabled :(

📎 unknown.png

timber remnant Jul 24, 2019, 12:44 PM

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is anybody able to point me in the direction of where skeletal mesh animations are handled and subsequently rendered? I know that's vague as all hell

limber jacinth Jul 24, 2019, 5:27 PM

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1>x:\unrealengine\engine\source\runtime\core\private\containers\algo\algostest.cpp(27): fatal error C1001: An internal error has occurred in the compiler.
1>  (compiler file 'd:\agent\_work\2\s\src\vctools\compiler\utc\src\p2\main.c', line 187)
1>   To work around this problem, try simplifying or changing the program near the locations listed above.
1>  Please choose the Technical Support command on the Visual C++
1>   Help menu, or open the Technical Support help file for more information
1>```

#

anyone any idea?

nocturne island Jul 24, 2019, 6:01 PM

#

@limber jacinth Did you try doing a clean and deleting Intermediate folder?

limber jacinth Jul 24, 2019, 6:21 PM

#

yeah its not that

#

its the compiler crashing

#

i fixed it now tho

coarse knot Jul 25, 2019, 3:30 AM

#

how do I enable building the whole engine along with my game?

low dust Jul 25, 2019, 7:47 AM

#

easy version: have c++ files on your project, then clone the engine version you want to use, build it according to instructions on the github readme, then right click your games .uproject file and switch the engine version to the custom build one

#

at that point, your projects solution file has both engine and your game project, you can modify both

#

@coarse knot

coarse knot Jul 25, 2019, 7:59 AM

#

@low dust thank you 😃

spare phoenix Jul 25, 2019, 10:52 AM

#

has anyone tried changing how references to other objects get serialized (i dont want their string path in the uasset files)

elder falcon Jul 25, 2019, 12:57 PM

#

that's not a thing you can override easily

#

at least not like "modify how all references to objects of this class serialize"

spiral mortar Jul 25, 2019, 12:59 PM

#

So turns out doing anything affecting the render thread (eg queuing a command) in an async game thread task isn't safe

elder falcon Jul 25, 2019, 12:59 PM

#

wut

spiral mortar Jul 25, 2019, 12:59 PM

#

Because that code: https://github.com/EpicGames/UnrealEngine/blob/4e0b10ab06ab7d26354fa91c189e2b61d2be21bc/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp#L120 suspends the render thread

#

And then finishes the async tasks

#

And while the render thread is suspended

#

IsRenderingThread returns true everywhere

#

Which is obviously really bad

#

Making a repro for this is going to be a pain...

elder falcon Jul 25, 2019, 1:03 PM

#

why would the render thread ever be suspended

spiral mortar Jul 25, 2019, 1:03 PM

#

To read render stuff on the game thread

#

📎 unknown.png

#

eg

#

Engine\Source\Editor\UnrealEd\Private\Editor\ActorPositioning.cpp

elder falcon Jul 25, 2019, 1:04 PM

#

br_egg

spiral mortar Jul 25, 2019, 1:05 PM

#

It's a really bad bug tbh

#

Corrupting stuff in the background

unborn tiger Jul 25, 2019, 1:44 PM

#

hmm, compiled 4.23 and subsurface profile is empty for me, no params, just an empty window, anyone else has this problem? (not really fam yet w ue or its engine, im only fiddling around w/ raytracing)
edit: nvm, i had to reset the window layout and it works:)

timber remnant Jul 25, 2019, 2:53 PM

#

Short of digging through the engine source (which I'm about to do - just compiling still) is there any material out there which can help explain the structure of unreal engine? i.e. it's internal architecture, or certain areas there in.. of.. about?

long wave Jul 25, 2019, 2:57 PM

#

The engine is absolutely massive, you'd have to be more specific than that really

timber remnant Jul 25, 2019, 2:58 PM

#

Well in particular in how the GPU handles animation - the skin cache pipeline and how it handles skeletal meshes

#

rendering of skinned meshes

long wave Jul 25, 2019, 2:59 PM

#

Well, the two main sources of official info are docs.unrealengine.com and api.unrealengine.com

#

But tbh, the API documentation is auto-generated and useless next to just looking through the source code

#

and Docs rarely goes above anything intermediate level

timber remnant Jul 25, 2019, 3:00 PM

#

This was the vibe I got - I'll wait for this beast to compile then

long wave Jul 25, 2019, 3:00 PM

#

I mean here's info about the engines animation system(s) in general:
https://docs.unrealengine.com/en-US/Engine/Animation/index.html

Skeletal Mesh Animation System

System for deforming skeletal meshes based on keyframed animation data and morph targets.

timber remnant Jul 25, 2019, 3:01 PM

#

Hey nice one, thanks

frozen glen Jul 25, 2019, 4:13 PM

#

I wrote a custom detail viewer for an actor component I have. I'm trying to get the class of the actor that it's attached to while editing the blueprint. I'm able to obtain the pointer to my ActorComponent, but that's it. I've tried using TObjectIterator to find all actors and then iterate over their components. I was able to find an instance of the ActorComponent on an AActor this way, but it's not the same instance as the one from the DetailView. Any other ideas?

#

I've also tried using FAssetEditorManager::GetAllEditedAssets(), I'm able to find the UBlueprint this way, but not sure how to access the root object of the blueprint.

spare phoenix Jul 25, 2019, 11:31 PM

#

the UBlueprint's GeneratedClass

elder falcon Jul 26, 2019, 1:51 AM

#

https://github.com/EpicGames/UnrealEngine/commit/887b35c72b4aa423a9d34e724ae49054d39b26dc chaos will be able to use the task graph and properly spread out work? br_animated_thinking

spare phoenix Jul 26, 2019, 2:00 AM

#

does the chaos concave object collision work yet ?

#

can we just never make convex hulls again

elder falcon Jul 26, 2019, 2:00 AM

#

convex collision will always be more efficient

barren oyster Jul 26, 2019, 7:17 AM

#

After some investigation, I think I found a very strange engine bug, where on some mobile devices decals are rendering at the actor position instead of attached to the ground as expected; works fine on PC, but on mobile it is broken
Anyone experienced anything similar?

timber remnant Jul 26, 2019, 12:01 PM

#

With regards to GPU Skin cache and morph targets, o

#

does anybody know what order these are applied in?

#

ahhh I presume morph targets are computed before skin clusters.. given there's a call to "MorphUpdateCS in SkeletalRendererGPUSkin.. is this the entry point for the GPU?

viral prawn Jul 26, 2019, 1:27 PM

#

Which file do I need to include to get log macro

#

in the engine source in a file that I can't do an UELog

timber remnant Jul 26, 2019, 1:38 PM

#

Obviously I am being stupid or does GpuSkinCacheComputShader do nothing..?

timber remnant Jul 26, 2019, 4:02 PM

#

anybody know where the skinning is done for a GPUSkin which isn't using the GPUSkinCache? I'm actually struggling to get any results where the skincache is used..

brisk silo Jul 26, 2019, 4:14 PM

#

@elder falcon parts of Chaos are designed to run parallel-fors and the like

#

if it supports taskgraph properly, i guess that says that instead of having a dedicated physics thread, it will just run parallel-for every time it can for scalability

elder falcon Jul 26, 2019, 4:54 PM

#

that sounds exciting

long wave Jul 26, 2019, 7:09 PM

#

Just glad you can actually have a fixed framerate now by the look of it

elder falcon Jul 26, 2019, 7:40 PM

#

huh

#

what makes you think that

low dust Jul 26, 2019, 7:55 PM

#

it being designed to work with networking is one good reason (for fixed timestepping)

#

I have no idea how chaos works tho

#

just throwing that out there

elder falcon Jul 26, 2019, 8:03 PM

#

adding a fixed timestep to the engine would imply massive refactors to the character movement to make it actually useful and I haven't seen any

brisk silo Jul 26, 2019, 8:18 PM

#

not really

low dust Jul 26, 2019, 9:10 PM

#

only if some person would have implemented fixed timestepped physics with current physx setup

#

cough

#

but talking about chaos and CMC at the same time... that's kinda assuming much now

#

realistically they'd redo CMC, this time with more decoupled structure

elder falcon Jul 26, 2019, 9:29 PM

#

I don't see how a fixed timestep can work without converting everything involving physics and movement at once

long wave Jul 26, 2019, 9:36 PM

#

fixed timestep physics is nothing to do with character movement

elder falcon Jul 26, 2019, 9:36 PM

#

how is a character that ticks every frame supposed to interact with a world that has a fixed tick rate

#

or anything that moves

#

it'd need render interpolation on all objects

long wave Jul 26, 2019, 9:37 PM

#

Maybe the default scene would be semi-fixed like what we have now just to keep life simple

#

I can definitely see it being able to create fixed-step scenes though

#

all I want is the ability to either a) simulate a single object on it's own within the context of a scene at will or b) easily and cheaply duplicate chunks of a scene and simulate those at will

#

If either of those becomes a reality, networked physics pawns suddenly gets a lot easier

#

The existing PhysX integration doesn't make either of those things easy

thick storm Jul 26, 2019, 9:52 PM

#

@elder falcon there is new movement component in the works

#

so you got that covered

long wave Jul 26, 2019, 9:52 PM

#

There is?

thick storm Jul 26, 2019, 9:52 PM

#

yes

long wave Jul 26, 2019, 9:52 PM

#

any info?

thick storm Jul 26, 2019, 9:52 PM

#

sec I will paste relevelant parts from udn

long wave Jul 26, 2019, 9:53 PM

#

link me if pos

#

never sure what the deal is with sharing udn posts

thick storm Jul 26, 2019, 9:53 PM

#

if they are not marked as private

#

https://udn.unrealengine.com/questions/509102/view.html

#

youu can share Epic responses

long wave Jul 26, 2019, 9:53 PM

#

nice

elder falcon Jul 26, 2019, 9:54 PM

#

br_boi this link goes nowhere

thick storm Jul 26, 2019, 9:54 PM

#

-"Implicit corrections": all prediction and correction will happen client side now instead of explicit acks/correction from the server. Server will just tell clients where (and when) they were and it'll be up to client to respond to that.
-Well defined input structure. Input into the system will be pretty tightly controlled and structured so that it can be reasoned about over time (what was my input this frame, client and server will agree what the input was, etc).
-"Single simulation code path" meaning we a single code path for the core simulation code (ie., a movement update function) that doesn't have to worry or check about prediction, authority, simulated proxies, etc.

long wave Jul 26, 2019, 9:54 PM

#

bloody hell, imagine that

thick storm Jul 26, 2019, 9:54 PM

#

from the master of GameplayAbilities Dave Ratti

long wave Jul 26, 2019, 9:54 PM

#

Pretty much exactly what I did for my vehicles then

#

Will be keeping an eye on that like a hawk

thick storm Jul 26, 2019, 9:55 PM

#

that's probabaly going to involve some refactor into GameplayAbilities as well

long wave Jul 26, 2019, 9:55 PM

#

hopefully it's not dependant on it, but sounds promising

thick storm Jul 26, 2019, 9:56 PM

#

it might be, there was always planned better inter op betweeon those two systems

#

but I wouldn't assume it is going past attribute integration and ability tasks

elder falcon Jul 26, 2019, 9:56 PM

#

why aren't all of these "not private" posts publicly visible by default

thick storm Jul 26, 2019, 9:57 PM

#

well it is your judgment call

#

to not copy paste something under NDA from wall of text '[

elder falcon Jul 26, 2019, 9:57 PM

#

there is far too much info that can only be found on udn while not touching any game's nda and thus having no reason to be secret

thick storm Jul 26, 2019, 9:58 PM

#

honestly

#

I still think there should paid private forums

#

it would weed out most shit talk

#

paid for post

#

free to read

elder falcon Jul 26, 2019, 9:58 PM

#

the ability to read the posts linked from issues all over is what udn is lacking

#

this new movement will be very nice

brisk silo Jul 27, 2019, 9:35 AM

#

the CMC is one of the bigger clusterfucks of the entire game architecture

#

the other big clusterfuck is the entire scene-component transform system

#

btw, those updates to CMC networking look great

spare phoenix Jul 27, 2019, 10:21 AM

#

and just when i decided to write a custom CMC from scratrch cuz adding features to existing one was too hacky

brisk silo Jul 27, 2019, 11:01 AM

#

its good to have your own character movement

#

that way its optimizable

spare phoenix Jul 27, 2019, 11:58 AM

#

all my movement is based on root motion of animations playing, its much easier than trying to fake it with constant velocities which is what i had to do with CMC

hidden hedge Jul 28, 2019, 3:30 AM

#

with transforms, implementing skeletal mesh merge for customised characters was actually worth it more from the "fewer transforms per frame to update" perspective more than the drawcall one

thick storm Jul 28, 2019, 4:53 AM

#

plugin with movement is on git master now

#

@spare phoenix unless you are doing only single player, walking simulator

#

root motion movement is dead end that will bite you sooner than later

sudden thorn Jul 28, 2019, 5:29 AM

#

any idea why this is happening?

📎 AOR.log

spare phoenix Jul 29, 2019, 10:37 AM

#

@thick storm dunno, root motion from montages only is working fine for me networked, also its been a lot easier making sure things like ladder climbing happens one rung at a time not using CMC and just using root motion instead

thick storm Jul 29, 2019, 11:13 AM

#

for full movement in real networking conditions ?

#

or just by testing locally ? (;

spare phoenix Jul 29, 2019, 11:16 AM

#

i do replicate the "action" that causes montage to play with world coordinates and timestamp

timber remnant Jul 29, 2019, 12:06 PM

#

Can anybody tell me why .ush files are ignored by the shader compiler?

elder falcon Jul 29, 2019, 2:10 PM

#

what do you mean "ignored"? they are shader headers, included by usf files that get compiled when the engine references them

timber remnant Jul 29, 2019, 3:50 PM

#

from visual studio, syntax errors in usf will cause the shader compiler to bomb out when building the engine, header files can have their entire contents removed and the engine will build fine

brave wraith Jul 29, 2019, 4:25 PM

#

im getting these errors when trying to bild developer sever. Not sure what they mean

📎 1.PNG

spare phoenix Jul 29, 2019, 4:27 PM

#

you should remove the mark of the web on those files

#

why did you download the engien source as zip and THEN use windows explorer to unzip it ?

#

either cloning properly, or using winzip/winrar/7zip to extract the zip wouldnt leave the files with "mark of the web"

brave wraith Jul 29, 2019, 4:28 PM

#

dunno

#

but i dont know which files they are

spare phoenix Jul 29, 2019, 4:28 PM

#

anyway the mark of the web is removed by clicking "Unblock" on the files after right clicking them and Properties

#

it says, the resx files

brave wraith Jul 29, 2019, 4:28 PM

#

ahhhh

#

ok

#

thnak youi

brave wraith Jul 29, 2019, 4:50 PM

#

now im just getting this

#

1>------ Skipped Build: Project: SlateViewer, Configuration: Invalid Win32 ------
1>Project not selected to build for this solution configuration
2>------ Skipped Build: Project: SymbolDebugger, Configuration: Invalid x64 ------
2>Project not selected to build for this solution configuration
3>------ Skipped Build: Project: TestPAL, Configuration: Invalid Win32 ------
3>Project not selected to build for this solution configuration
4>------ Skipped Build: Project: UnrealCEFSubProcess, Configuration: Invalid Win32 ------
4>Project not selected to build for this solution configuration
5>------ Skipped Build: Project: UnrealFileServer, Configuration: Invalid Win32 ------
5>Project not selected to build for this solution configuration
6>------ Skipped Build: Project: UnrealHeaderTool, Configuration: Invalid Win32 ------
6>Project not selected to build for this solution configuration
7>------ Skipped Build: Project: UnrealLightmass, Configuration: Invalid Win32 ------
7>Project not selected to build for this solution configuration
8>------ Skipped Build: Project: UnrealMultiUserServer, Configuration: Invalid Win32 ------
8>Project not selected to build for this solution configuration
9>------ Skipped Build: Project: UnrealPak, Configuration: Invalid Win32 ------
9>Project not selected to build for this solution configuration
10>------ Skipped Build: Project: UnrealVersionSelector, Configuration: Invalid Win32 ------

#

......

spare phoenix Jul 29, 2019, 5:02 PM

#

should probablz not use the invalid configuration

brave wraith Jul 29, 2019, 5:18 PM

#

not even sure what the configuration is for

ocean inlet Jul 30, 2019, 12:17 AM

#

@long wave, @thick storm, @elder falcon
That networked prediction plugin is now up on github
https://github.com/EpicGames/UnrealEngine/tree/master/Engine/Plugins/Runtime/NetworkPrediction

elder falcon Jul 30, 2019, 1:32 AM

#

nice, gonna have to see if I can make my weapons use it when the final version is out

spare phoenix Jul 30, 2019, 1:56 AM

#

hopefully i can use this for my custom movement component as well

long wave Jul 30, 2019, 8:39 AM

#

Nice, I'll check it out

wraith crystal Jul 30, 2019, 12:00 PM

#

if anyone's using VInterpConstantTo I recommend either pulling my latest PR or changing its Current parameter yourself to be a reference
https://github.com/EpicGames/UnrealEngine/pull/6080

#

unless you want to be copying FVectors for no reason

spare phoenix Jul 30, 2019, 12:29 PM

#

have you measured that its better performance ?

#

a FVector can fit in a single SSE register which is ideal for parameter passing

#

a pointer to it would use up 8 bytes anyway and then require an indirect memory load, vs just 16bytes (single SSE register) directly

#

if anything, more fvectors should be passed by value

elder falcon Jul 30, 2019, 1:05 PM

#

now that would be an interesting benchmark

#

would it work to just replace all const FVector& with FVector in the engine and then check if the fps improves or something?

spiral mortar Jul 30, 2019, 1:09 PM

#

It will definitely not work

#

And it's cpu dependent :p

spare phoenix Jul 30, 2019, 1:49 PM

#

the compiler with inline functions/full program optimization should figure stuff out on its own anyway

elder falcon Jul 30, 2019, 2:04 PM

#

ltcg takes like 15 minutes per configuration and doesn't seem to measurably increase the fps or reduce loading times or do anything actually useful for the game

#

and pgo makes parts of my game run worse while not improving others lol

spare phoenix Jul 30, 2019, 2:13 PM

#

ltcg can be beautiful but it blows up linking time and compilation memory usage

wraith crystal Jul 30, 2019, 2:16 PM

#

@spare phoenix going to bench it but I think you're right

spare phoenix Jul 30, 2019, 2:16 PM

#

however it was likely intended to be a ref in that function and just typo'd

wraith crystal Jul 30, 2019, 2:16 PM

#

nope: https://github.com/EpicGames/UnrealEngine/pull/6010#discussion_r301336659

spare phoenix Jul 30, 2019, 2:17 PM

#

theres really no reason for it to be const nonref

#

if it was supposed to be a copy it'd be nonconst

wraith crystal Jul 30, 2019, 2:18 PM

#

You are basically trading off stack space + copying values vs. needing to access memory on other cachelines. In modern architectures my personal rule of thumb is if it is 4 registers worth of data or less (so basically 4 simple member types) pass by value, otherwise pass by reference. I'm also hesitant about passing things by value unless they are fundamental engine types that aren't going to change (e.g. FVector, FName), the risk with passing some game struct that is small today by value is that someone comes along and puts a whole lot of additional data in to it in the future and suddenly your cheap register-only copy is some enormous amount of memory allocations and you are very sad.

spare phoenix Jul 30, 2019, 2:18 PM

#

yes the rule of thumb is that 16 byte structs should always be by value on x64

#

but most FVector parameters are constref in the engine

wraith crystal Jul 30, 2019, 2:19 PM

#

why did I think anything < 8 bytes should be passed by value and anything above by ref

#

probably heard it somewhere and so the internet got me

spare phoenix Jul 30, 2019, 2:19 PM

#

well 8 bytes should absolutely always be value

#

cuz a pointer on x64 is 8 bytes so you gain nothing

wraith crystal Jul 30, 2019, 2:20 PM

#

sure

spare phoenix Jul 30, 2019, 2:20 PM

#

but floating point on x64 are passed in SSE registers which are 16 bytes

#

so for floats, <= 16 should always be by value

wraith crystal Jul 30, 2019, 2:21 PM

#

so basically up to FVector4 and friends --> pass by value

spare phoenix Jul 30, 2019, 2:21 PM

#

quaternions and rotators etc

wraith crystal Jul 30, 2019, 2:21 PM

#

sure

#

this is great to know, glad you've caught it

#

(and a github user who got the response I've pasted above from someone at epic)

spare phoenix Jul 30, 2019, 2:21 PM

#

but epic always uses constref for these structs

#

which caused me some trouble when i do follow the rule of thumb

#

like here: https://answers.unrealengine.com/questions/125784/view.html

wraith crystal Jul 30, 2019, 2:22 PM

#

well that's their loss :)

spare phoenix Jul 30, 2019, 2:39 PM

#

well they do tons of things i dont like/conflict with my own style, like never using unsigned integers anywhere

glass hedge Jul 30, 2019, 5:11 PM

#

Can anyone point me to where the cloth physics is applied in engine. I'd like to take a look at it's implementations as it's not behaving well with morph targets

elder falcon Jul 30, 2019, 6:48 PM

#

how did epic increase their cl numbers by like one million in a month 🤔

hidden hedge Jul 30, 2019, 10:30 PM

#

perpetual fortnite crunch

#

it's gone up 2 million since april

honest niche Aug 1, 2019, 12:29 PM

#

I'm perplexed as to why my SaveGame UPROPERTY isn't working:

a cpp component, with a FMyStruct member var
that member var is a UPROPERTY(SaveGame)
FMyStruct is a USTRUCT() with a friend FArchive& operator<<(FArchive&, FMyStruct&) and a bool Serialize(FArchive&)
I call Serialise() on the component
...and never hit the FMyStruct serialisation code
Any ideas what step I've missed? I also have a SaveGame TArray<FString> in the component, and that serializes correctly.

#

(absolutely no idea if this is the right channel, apologies if not)

spiral mortar Aug 1, 2019, 12:41 PM

#

@honest niche need to set its type traits to have custom serializer

#

template<>

struct TStructOpsTypeTraits<FVoxelMaterial> : public TStructOpsTypeTraitsBase2<FVoxelMaterial>

{

	enum 

	{

		WithSerializer = true,

		WithIdenticalViaEquality = true

	};

};

ivory skiff Aug 1, 2019, 5:11 PM

#

Anyone use distributed lightbuilds with swarm?

elder falcon Aug 1, 2019, 6:15 PM

#

what does WithIdenticalViaEquality do? 🤔

spiral mortar Aug 1, 2019, 6:16 PM

#

@elder falcon use the == operator to check equality

elder falcon Aug 1, 2019, 6:18 PM

#

huh what else would it do 🤔

spare phoenix Aug 1, 2019, 10:49 PM

#

use overriden virtual function ?

long wave Aug 2, 2019, 7:52 AM

#

it uses memcmp IIRC

weary raptor Aug 2, 2019, 6:35 PM

#

I'm planning to update a project from 4.19.2 to 4.22.3 - later today, is there any common issues I should be aware of?

modern shore Aug 3, 2019, 10:08 PM

#

Should blast plugin work in 4.22.3?

#

I am not seeing option to "Create Blast Mesh" in context menu, plugin is enabled

modern shore Aug 3, 2019, 10:27 PM

#

guess its complete and recommendation is to use nvidia branch

#

time to try out chaos

modern shore Aug 4, 2019, 12:06 AM

#

fresh install 4.23.0:

📎 unknown.png

#

only this was added to UE4Editor.Target.cs

// enable chaos physics plugin
    bCompileChaos = true;
    BuildEnvironment = TargetBuildEnvironment.Unique;

#

Anyone got this plugin working?

elder falcon Aug 4, 2019, 2:14 PM

#

https://github.com/EpicGames/UnrealEngine/commit/3a4873ef60f90585c7fa0e048517c20ff4414269 br_animated_thinking

#

chaos is fucking huge wtf

brisk silo Aug 4, 2019, 4:37 PM

#

so they merged another huge Chaos drop?

elder falcon Aug 4, 2019, 4:42 PM

#

yes

brisk silo Aug 4, 2019, 4:42 PM

#

time to snoop around it

elder falcon Aug 4, 2019, 4:42 PM

#

there is also a lot of physx changes

#

and niagara

brisk silo Aug 4, 2019, 4:50 PM

#

so this is the code drop for real

#

unlike the 4.23 one

elder falcon Aug 4, 2019, 4:58 PM

#

what's new

brisk silo Aug 4, 2019, 5:17 PM

#

checkin

#

but quick look shows huge updates to chaos

brisk silo Aug 4, 2019, 6:03 PM

#

uhm, did they remove ispc?

#

i dont find it there any more

#

the 3 ispc files on 4.23 are not there anymore

elder falcon Aug 4, 2019, 7:53 PM

#

they aren't on github

#

they're in the dependency file

#

because br_big_brain

brisk silo Aug 4, 2019, 8:12 PM

#

nope, this is after running dependencies

elder falcon Aug 4, 2019, 8:17 PM

#

wtf

hidden hedge Aug 5, 2019, 1:56 AM

#

if you have perforce access it's just easier to follow the dev-physics stream

elder falcon Aug 5, 2019, 2:29 AM

#

I would guess that 99% of the people in this server do not

spiral mortar Aug 5, 2019, 2:30 AM

#

voxelthinking

amber kernel Aug 5, 2019, 1:27 PM

#

hello guys, i'm having a problem trying to build my project in Visual Studio Code:

> Executing task in folder BookDemo: Engine\Build\BatchFiles\Build.bat BookDemoEditor Win64 Debug E:\Projects\UnrealEngine\BookDemo\BookDemo.uproject -waitmutex <

'C:\Program' is not recognized as an internal or external command,
operable program or batch file.

c:\Program Files\Epic Games\UE_4.22>

#

why?

shrewd thorn Aug 5, 2019, 6:22 PM

#

Something somewhere needs quotes to deal with the space in Program files. But I would recommend you not install UE4 to program files, you're better off putting UE4 in a more root directory

shrewd thorn Aug 5, 2019, 7:23 PM

#

If anyone is trying to make game pads work well on windows I just submitted two pull requests that should help: https://github.com/EpicGames/UnrealEngine/pull/6093 makes the RawInput plugin work for generic controllers and https://github.com/EpicGames/UnrealEngine/pull/6094 allows you to determine which type of controller is sending input

hidden hedge Aug 5, 2019, 7:32 PM

#

nice changes, i'm not sure why gamepad type wasn't something readily exposed

#

hope they get accepted

shrewd thorn Aug 5, 2019, 7:34 PM

#

The UE4 input stuff is very old and never really got focused on at Epic

royal harness Aug 6, 2019, 12:01 AM

#

@modern shore To get it working, I had to add BuildEnvironment = TargetBuildEnvironment.Shared; bCompileChaos = true; in BOTH the engine's .Target.cs file, AND the project's .Target.cs file

low dust Aug 6, 2019, 3:44 PM

#

why do you need to changed that to .Shared ?

low dust Aug 6, 2019, 4:16 PM

#

ah you mean it was there already, nevermind :p

#

also just found this https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1641765-how-to-enable-chaos-in-4-23-preview

Unreal Engine Forums

Follow these steps to enable Chaos in 4.23 Preview:

Download 4.23 Preview from Github (https://github.com/EpicGames/UnrealEngine) (source build is required, and

elder falcon Aug 6, 2019, 5:30 PM

#

has anyone tried to use https://www.superluminal.eu/ with unreal yet?

low dust Aug 6, 2019, 5:40 PM

#

trying to build master with chaos 😄

📎 unknown.png

elder falcon Aug 6, 2019, 5:49 PM

#

hmmmmmmm

low dust Aug 6, 2019, 6:15 PM

#

it's possible master is broken tho

#

new chaos drop isn't in 4.23 branch tho

#

https://github.com/EpicGames/UnrealEngine/blob/master/Engine/Source/Runtime/Engine/Private/Collision/SceneQueryLowLevel.cpp#L49

#

wonder what happened here 😄

#

this makes no sense

#

4.23 branch: https://github.com/EpicGames/UnrealEngine/blob/4.23/Engine/Source/Runtime/Engine/Private/Collision/SceneQueryLowLevel.cpp#L47

#

lets blame someones cat for saving this

#

I do wonder how nobody has spotted this so far tho

#

it's been like this for 4 days

#

welp, I updated master and fixed that issue

📎 unknown.png

#

shouldn't have updated master but I guess it would have taken half a day anyway to redo this 😃

low dust Aug 6, 2019, 9:33 PM

#

so I got it built but how does this even work? 😄

#

ah they have some demo on the GDC

elder falcon Aug 6, 2019, 9:35 PM

#

3275 actions wtf?

low dust Aug 6, 2019, 9:36 PM

#

I didn't notice there was new editor mode (it was collapsed due to default editor dialog sizes)

#

@elder falcon yeah, UE4 loves me 😄

#

at least it built now

#

📎 unknown.png

elder falcon Aug 6, 2019, 9:57 PM

#

br_oof

modern shore Aug 7, 2019, 2:58 AM

#

@royal harness
in BOTH the engine's .Target.cs file, AND the project's .Target.cs file

There is no project, I am trying to create a new one by starting UE4Editor.exe

#

Now it got to 86% instead of 45% after current git pull of 4.23

📎 unknown.png

granite dust Aug 7, 2019, 3:31 AM

#

https://github.com/EpicGames/UnrealEngine/blob/master/Engine/Plugins/Runtime/NetworkPrediction/readme.txt

#

New movement component sounds early, but promising

low dust Aug 7, 2019, 7:09 AM

#

oh, that's nice

#

CMC including everything was like everything wrong with it 😃

#

it's just so bloated and unmoddable

#

lol

#

that editor crash I had

#

I just attached debugger

#

📎 unknown.png

#

well, I guess this is not supposed to work at runtime yet

#

no idea if the 4.23's version actually simulates things

#

but the version on master seem to be intentionally disabled

#

in a weird way 😄

pastel dew Aug 7, 2019, 2:16 PM

#

is it possible to build the engine with vs-code (with build tools installed and working), or do i also need full visual studio?

hidden hedge Aug 7, 2019, 4:11 PM

#

i think so but i wouldn't recommend vs code for UE4

pastel dew Aug 7, 2019, 6:52 PM

#

ok, ill grab v studio community, thanks @hidden hedge

#

is visual studio 2015 or 2017 recommended?

#

or does 2019 work for UE4?

trail juniper Aug 7, 2019, 7:02 PM

#

2019 works very well

pastel dew Aug 7, 2019, 8:58 PM

#

thanks again @trail juniper !

trail juniper Aug 7, 2019, 8:59 PM

#

yw

pastel dew Aug 7, 2019, 9:00 PM

#

once i build the engine from source, i assume i can no longer user the epic games launcher ?

trail juniper Aug 7, 2019, 9:09 PM

#

then you open your sln file or just dblclick the uproject file. you always can change UE version with the context menu

#

but i dont think its in the launcher

#

but you can open your project through the launcher

shrewd thorn Aug 7, 2019, 9:45 PM

#

You can still buy marketplace content via the launcher, it might find your project root and if not you can specify it when you install

#

My launcher thinks I still have 4.18 installed, so you might want to uninstall the engine if it gets too confused

pastel dew Aug 7, 2019, 10:29 PM

#

thanks for the tip @shrewd thorn

#

does that mean i could/should uninstall the engine from the launcher and just use my built version?

hidden hedge Aug 8, 2019, 12:29 AM

#

managing marketplace content and using source builds is still a pain unfortunately

#

it only detects installed builds

#

so you have to have an engine install and then copy the content to your source build, which is a pain

pastel dew Aug 8, 2019, 9:38 AM

#

ah ok, thanks for the tips

hidden hedge Aug 8, 2019, 10:38 PM

#

anyone know of the best way of programmatically creating an asset in the editor, preferably without having to create a factory class?

small cobalt Aug 8, 2019, 10:46 PM

#

I dont know if you can?

#

Ive always made a factory class cause thats all i could see how it worked...

hidden hedge Aug 8, 2019, 10:53 PM

#

suppose i'll have to do that then

uncut flax Aug 9, 2019, 7:58 AM

#

📎 unknown.png

#

I already installed 4.6.2 that a while ago

#

But it keeps saying this

#

Can anyone help to fix this?

midnight river Aug 9, 2019, 8:04 AM

#

i had the same thing
https://stackoverflow.com/questions/44548780/the-reference-assemblies-for-framework-netframework-version-v4-6-2-were-not-f
this helped

Stack Overflow

The reference assemblies for framework ".NETFramework,Version=v4.6...

When trying to compile a solution, I get the following build error:
Error MSB3644 The reference assemblies for framework
".NETFramework,Version=v4.6.2" were not found. To resolve this,
insta...

#

@uncut flax

uncut flax Aug 9, 2019, 9:13 AM

#

@midnight river Thanks! It works fine now :))

midnight river Aug 9, 2019, 9:13 AM

#

🎉

modern shore Aug 10, 2019, 6:22 PM

#

😠

📎 unknown.png

#

anyone have current preview branch compile?

#

4.23

dense kettle Aug 11, 2019, 6:38 AM

#

Hi, someone using Buildgraph to build Installed Engine on Linux?

#

It seems it doesn't build generated headers, and so I cannot build my uproject

nocturne island Aug 11, 2019, 1:21 PM

#

@modern shore just built latest last night - did you run Setup.bat and GenerateProjectFiles.bat after pulling latest

strange jungle Aug 11, 2019, 9:17 PM

#

Hey ! So i'm trying to "implement" ( it is more switching since it is already implemented) Burley shading (Disney shading method) in UE4 for that i need to switch from lambert diffuse to burley diffuse which is already done (easy) and base specularGGX to D_GGXaniso (anisotropic) but i can't find how can someone help me ?

#

📎 Capture.PNG

#

this is how i changed from lambert diffuse to burley quite easy since all the variables are already declared !

#

📎 Capture.PNG

#

and this is the specular i try to implement ( already on the BRDF.usf file) ! if someone can help to to implement it at least for the default lit sahding that would be awesome !

wraith crystal Aug 12, 2019, 1:05 AM

#

has anyone written a plugin / engine mod or know of one that would enable materials to access structured buffers by name, much like textures?

stable hemlock Aug 12, 2019, 7:36 PM

#

Yao.. Tryin to increase max Vector Feild count per emitter. I just need about 20+ of them for simulation and it is totally fine when i increase that limit from 4 to 8 and even 9 of them, but something going wrong (engine just won't launch with usual shader compiler code syntax error) if ts more then 9 of them.. do not really understand what s exactly.. Imma not that good n c++ thingys.. Can anyone try it?

Ts vi ParticleGpuSimulation.cpp and vi ParticleSimulationShader.usf

📎 c2.PNG

#

📎 c1.PNG

stable hemlock Aug 12, 2019, 9:11 PM

#

📎 halp.png

uncut flax Aug 13, 2019, 11:50 AM

#

I exported my dedicated server and once i try to boot it up i get these errors:https://pastebin.com/raw/xNXe16Ai

#

All these .dll files exist without the PROFILE in its name

#

📎 EscaposServer.Target.cs

#

Thats my target file

#

Anyone who can help me?

#

The game it self works fine

uncut flax Aug 13, 2019, 12:11 PM

#

I copied the dll's from the engine source files. now i get this error https://pastebin.com/raw/0KqgavTX

sharp light Aug 13, 2019, 2:21 PM

#

Hi, not sure if this is the right channel but I'm trying to build a binary setup using the Automation Tool I've installed windows 10 sdk but getting this error: ERROR: Unable to find installation of PDBCOPY.EXE, which is required to strip symbols. This tool is included as part of the 'Windows Debugging Tools' component of the Windows 10 SDK (https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk). while executing task <Strip Platform="Win64" BaseDir="E:\Projects\AIRUE4" Files="#UE4Editor Win64 Unstripped" OutputDir="E:\Projects\AIRUE4\Engine\Saved" Tag="#UE4Editor Win64 Stripped" /> at Engine\Build\InstalledEngineBuild.xml(141) (see E:\Projects\AIRUE4\Engine\Programs\AutomationTool\Saved\Logs\Log.txt for full exception trace)

#

just wondering if anyone else had come across that before.

sharp light Aug 13, 2019, 2:57 PM

#

followup: I think i got it working. The "Debugging Tools for Windows" are not installed by default in the Windows 10 SDK i was using.

📎 unknown.png

hidden hedge Aug 14, 2019, 12:05 AM

#

that's what the error message described

winter dagger Aug 14, 2019, 2:52 AM

#

question: can I build the Mac engine from Windows?

nocturne island Aug 14, 2019, 4:06 AM

#

@winter dagger no... why would you want to

hardy parcel Aug 14, 2019, 9:18 AM

#

Hi everyone, I have a question:
In editor, we can select any actor by left mouse click, even if the collision of selected actor is set to disabled. Apparently editor doesn't use "LineTraceByXxx" to detect which actor is selected.
My question is: Which API editor use to select actor? Can this API be used by game logic?
Thanks for any answer!

winter dagger Aug 14, 2019, 1:53 PM

#

@nocturne island I need a particular version of it and would like to build that by the least annoying means possible

#

since the instructions begin with “run this .bat file” and macOS doesn’t do those, and since there’s a screenshot on that page showing both Mac and Windows targets in Visual Studio, I thought that might be the way to go

#

https://docs.unrealengine.com/Images/Programming/Development/BuildingUnrealEngine/platform_menu_updated.jpg

dense kettle Aug 14, 2019, 4:04 PM

#

Hi, can I only build uproject (without packaging) with UAT?

shrewd thorn Aug 14, 2019, 5:28 PM

#

You can set up visual studio to build via a mac proxy build machine, but apple makes it impossible to actually cross compile the way you can with linux

winter dagger Aug 14, 2019, 9:46 PM

#

ah okay, that makes sense

#

I’ll see if I can figure out how to just build it on my Mac then

#

thanks

modern shore Aug 15, 2019, 2:28 AM

#

@nocturne island thank you, trying it out now

#

regarding ue4 not compiling

#

i had no idea setup.bat was necessary more than once

modern shore Aug 15, 2019, 3:16 AM

#

progress, we now get to 86%, last time it was 85%

📎 unknown.png

stuck patrol Aug 15, 2019, 4:26 PM

#

Hi, does anyone in here has tried NVIDIA Gameworks on UE4?

light pewter Aug 15, 2019, 8:19 PM

#

Hey guys anybody know which editor function is responsible for changing a blueprint classes default variable value, and is it callable without modifying UE4's source?

low dust Aug 15, 2019, 10:00 PM

#

@stuck patrol I have

stuck patrol Aug 16, 2019, 2:37 AM

#

@low dust Which version?

low dust Aug 16, 2019, 2:46 AM

#

which version of what?

#

ue4, individual techs?

#

I've used these pretty much as long as they've been a thing for ue4, but recently, I've also merged and updated these myself for 4.18-4.21 so that people can use single engine build for most of these techs

#

https://github.com/0lento/UnrealEngine/tree/4.21-GameWorks for example got UE 4.21.2 with Nvidia Blast, Flow, HairWorks, HBAO+, TXAA and VXGI (and I have additional repo which adds WaveWorks on top of these)

stuck patrol Aug 16, 2019, 2:58 AM

#

@low dust Oh sorry, i mean your UE.

low dust Aug 16, 2019, 3:00 AM

#

not sure what you are asking now

stuck patrol Aug 16, 2019, 3:01 AM

#

@low dust Cool . I've tried to visit the gameworks branch and it says page not found. Do I need to wait for my submission acceptance from nvidia dev?

low dust Aug 16, 2019, 3:01 AM

#

nah

#

but you need to link your ue4 and github accounts

#

you can't access any ue4 forks without that link

#

as it's a private repo that's forked for modifications then

#

https://www.unrealengine.com/en-US/ue4-on-github

Unreal Engine 4 on Github

stuck patrol Aug 16, 2019, 3:04 AM

#

Ahhh i see. Lemme try a little bit.

#

@low dust Thank's . Now i can access it.

#

@low dust can i text you in private?

low dust Aug 16, 2019, 3:19 AM

#

is it something that needs to be private?

#

if it's brief, it's fine

stuck patrol Aug 16, 2019, 3:39 AM

#

maybe not, but i'm afraid it too spam in this section. Just ask about a little about those things.

dark pine Aug 16, 2019, 4:09 AM

#

Posted this in the cpp channel but then found this room and I think it's a better fit

Can someone explain to me how the global render resource list gets populated?
This is used, for example, during RHIInit to invoke InitRHI on seemingly all static instances of FRenderResource
I can't quite figure out how this is happening, except to perhaps chalk it up to some UHT magic

spiral mortar Aug 16, 2019, 4:41 AM

#

@dark pine Maybe static variables?

#

When they are constructed they register themselves to a global array

dark pine Aug 16, 2019, 5:05 AM

#

There's nothing in the constructor

#

that's the first thing i checked

#

/** Default constructor. */ FRenderResource() : FeatureLevel(ERHIFeatureLevel::Num) , bInitialized(false) {}

stuck patrol Aug 16, 2019, 2:20 PM

#

Hi, does anyone in here has tried using NVIDIA Gameworks for Commercial Products? like a game?

elder falcon Aug 16, 2019, 4:10 PM

#

3900x builds the engine two times faster than the 7820x br_wow

low dust Aug 17, 2019, 1:21 AM

#

@elder falcon how long for clean build?

nocturne island Aug 17, 2019, 2:59 AM

#

@elder falcon totally interested in seeing some timings as well...

limber jacinth Aug 17, 2019, 4:54 AM

#

waiting for the 3950x

elder falcon Aug 17, 2019, 11:39 AM

#

before it was 1200 seconds and now it is 620 seconds

#

I always build with all useless plugins disabled, and obv only the editor

elder falcon Aug 17, 2019, 6:01 PM

#

br_wow

📎 unknown.png

brisk silo Aug 17, 2019, 6:06 PM

#

holy fuck yes

elder falcon Aug 17, 2019, 6:07 PM

#

in dev-editor, so going in 4.24

brisk silo Aug 17, 2019, 6:07 PM

#

being able to change the movement component from BP is big

elder falcon Aug 17, 2019, 6:08 PM

#

what's this https://github.com/EpicGames/UnrealEngine/commit/d178b062b3168f7d47f4de41bdc25afa7bd4e030

brisk silo Aug 17, 2019, 6:08 PM

#

sky atmosphere 🤔

#

        {            {
            SunLightAtmosphereTransmittance = AtmosphericFogComponent->GetTransmittance(-SunLight->GetDirection());                 if (AtmosphereLights[Index])
            {
                const FVector SunDirection = -AtmosphereLights[Index]->GetDirection();

#

instead of running normal sunlights, atmosphere lights

#

interesting

elder falcon Aug 17, 2019, 6:11 PM

#

I like how dev-rendering has so many commit descriptions that mean nothing to me

📎 unknown.png

#

br_oof

📎 unknown.png

#

br_wow

📎 unknown.png

elder falcon Aug 17, 2019, 6:35 PM

#

only took 5 years

pliant sonnet Aug 17, 2019, 6:39 PM

#

vblanco - the author (Hillaire) was previously at Frostbite doing skies https://www.ea.com/frostbite/news/physically-based-sky-atmosphere-and-cloud-rendering

/user-data

Physically Based Sky, Atmosphere & Cloud Rendering - Frostbite

Talk by Sebastien Hillaire at SIGGRAPH 2016 in the Physically Based Shading in Theory and Practice course.

#

Wild wish fulfillment speculation - the 2019 Red Dead SIGGRRAPH talk on unified PBR indoor/outdoor lighting cites Hillaire's 2015 paper on unified volumetric PBR, ie great magic things will soon happen with the UE4 built in sky 🙂

elder falcon Aug 17, 2019, 7:12 PM

#

there are more dev-volumetrics merges after this with no description

neat hazel Aug 17, 2019, 11:29 PM

#

so, is it a mistake that Engine/Content/StarterContent contains only one texture?

#

the rest of it is in Samples/StarterContent.

#

i thought i could reference starter content without making a copy by pointing to /Engine instead of /Game

modern shore Aug 18, 2019, 12:04 AM

#

any idea on what can be done here:

📎 unknown.png

low dust Aug 18, 2019, 8:38 AM

#

Wonder if that frostbite sky is any coincidence to Unity just getting new physically based sky for their hdrp... From ex-frostbite guys

#

They dont have clouds for it yet tho but it's on their backlog

brisk silo Aug 18, 2019, 10:52 AM

#

@elder falcon Epic is going ham on dev-rendering

#

4.24 i gues is the target for 100% rendergraph

#

the great thing is that every time they move something to rendergraph, it gets simplified in the code

#

full rendergraph will make it very easy to tinker with the render passes

spiral mortar Aug 18, 2019, 10:59 AM

#

😍

brisk silo Aug 18, 2019, 11:09 AM

#

it should also improve perf on vulkan and dx12

#

through async compute and much better barrier usage

thick storm Aug 18, 2019, 2:53 PM

#

the batch of SkyAtmosphere is merged to master

thick storm Aug 18, 2019, 4:21 PM

#

@low dust doubt it

#

I mean

#

when you are getting money from Disney/ArchViz

#

to push renderer in certain direction

#

fully procedural/physical sky is pretty much basic requirment

#

and Epic have been slowly but surerly picking key people from DICE

#

@brisk silo fortunetly

#

CMC is won't be developer any longer

#

😄

#

developed*

low dust Aug 18, 2019, 4:30 PM

#

seems like these engines are starting to align on rendering then :p

#

Unity got rendergraph too :p

brisk silo Aug 18, 2019, 4:33 PM

#

@thick storm the entire game framework needs to be re-thought

#

you have this renderer gettign more and more strong over time, and meanwhile the game framework on 90s OOP practises

#

where moving an object bottlenecks

thick storm Aug 18, 2019, 4:44 PM

#

it's probabaly not going to happen

#

even new movement component is till OOP

#

but at least

#

it's more modular

#

single movement mode - one component

#

I mean gameplay framework might just as well stay OOP

#

the code behind it needs to change

#

like Ticking

low dust Aug 18, 2019, 6:52 PM

#

I dunno if it's really worth fixing just some of the issues

proud elbow Aug 18, 2019, 6:52 PM

#

What is/are the fonts used in blueprints and Unreal Engine in general?

low dust Aug 18, 2019, 6:52 PM

#

like, in ue4, you got HUGE overhead on the transform setup itself

#

and it's not something you can just change there as everything relies on current setup

#

(without forcing people to use different style framework)

proud elbow Aug 18, 2019, 6:56 PM

#

Nvm... found them in C:\Program Files\Epic Games\UE_4.19\Engine\Content\Slate\Fonts

brisk silo Aug 18, 2019, 8:15 PM

#

transform system and ticking system are 100% an absolute clownhouse

#

single-thread only transform system, with no option to do deferred transforms, and instant

#

and the tick system could group stuff by type, but it doesnt, so its instruction cache overhead is crazy

#

the fact that you can get 10-20% speed improvement on complex games by doing aggregate ticks is insane

thick storm Aug 19, 2019, 6:59 AM

#

@low dust I don't think they will rewrite or create new gameplay framework that will not be OOP

#

the new one might be more component based

#

but it still going to be composition not full blown ECS

#

you can't really create generic extensible framework system using ECS

#

but some shit of the framework cloud be improved with great benefit

#

like tick optimization or rewriting transform system to be multithreaded and cache coherent

#

in the end when you are writing gameplay systems how often do you want to change how transforms work, vs just providing set of transforms and let the system handle it ?

low dust Aug 19, 2019, 7:36 AM

#

yeah, I don't think that either

low dust Aug 19, 2019, 12:57 PM

#

is there some recommended way to make VS store libs and objs for UE4 compilation into separate folder?

#

I'd assume there would be some parameter for some ini to make this happen

#

instead of having to mess with VS solutions projects directly

#

I currently spend a lot of time in the linking phase, just wondering if that could be sped up by having the compiled objs and libs on another SSD as I have multiple similar speed drives here

thick storm Aug 19, 2019, 2:25 PM

#

if you are already doing it on SSD

#

moving it to other SSD

#

won't change anything

low dust Aug 19, 2019, 3:38 PM

#

was thinking simultaneous read and write could be still more expensive than read from other drive and write to other if the SSD's controllers throughput is on the limit already

#

but I don't know if it's an actual thing

#

on HDD, it would be definitely way faster since you read and write to different drives all the time then

dusk egret Aug 20, 2019, 2:18 AM

#

M.@ might make the difference from SSD

#

errM.2

low dust Aug 20, 2019, 3:12 AM

#

definitely will

#

but that doesn't help today when I'm compiling these branches

#

anyway, I'm almost done already, going for last branch for now

stable spruce Aug 20, 2019, 3:19 AM

#

does.engine suggestion go here?

elder falcon Aug 20, 2019, 3:21 AM

#

no

#

engine suggestions go in here: 🚮 because epic doesn't actually care

stable spruce Aug 20, 2019, 3:25 AM

#

uhh

dusk egret Aug 20, 2019, 3:27 AM

#

lol @elder falcon

elder falcon Aug 20, 2019, 3:27 AM

#

it's true though

dusk egret Aug 20, 2019, 3:27 AM

#

there may be a more accurate description

#

perhaps they get so many... and are understaffed for that kinda stuff?

#

you should apply for that position

elder falcon Aug 20, 2019, 3:28 AM

#

pls no

dusk egret Aug 20, 2019, 3:28 AM

#

lol

noble hare Aug 20, 2019, 3:42 AM

#

Trying to compile the engine from source, only wanted Win64, but it dies trying to compile UE4Game Linux. Can anyone spot what was wrong with my command?

📎 unknown.png

elder falcon Aug 20, 2019, 3:44 AM

#

missing the flag telling it to only build win64

noble hare Aug 20, 2019, 3:45 AM

#

is that not "-set:WithWin64=true" ?

elder falcon Aug 20, 2019, 3:45 AM

#

some long time ago this had a HostPlatformOnly setting

#

I haven't used it in a while

#

maybe a docs page exists

dusk egret Aug 20, 2019, 3:49 AM

#

too small to read for my eyes

noble hare Aug 20, 2019, 3:51 AM

#

Thanks @elder falcon , looking at the script, I think I want HostPlatformEditorOnly

elder falcon Aug 20, 2019, 9:15 AM

#

what is even going on anymore in dev-anim

#

the control rig thing is now being over engineered so far that it has its own vm module

thick storm Aug 20, 2019, 10:18 AM

#

it was always it's own VM

elder falcon Aug 20, 2019, 10:30 AM

#

br_egg builtin live++ still does not work on the engine module in 4.23

#

crashes in some log suppression function after applying the patch

#

🤔 how do you make insights display something

#

view is just always empty, seems to record the frames but no data inside them

📎 unknown.png

elder falcon Aug 21, 2019, 7:17 AM

#

br_wow

📎 unknown.png

#

https://github.com/EpicGames/UnrealEngine/commit/d751ad2d5f51db7745ceb77522c109a1cbba985d

spiral mortar Aug 21, 2019, 9:29 AM

#

😮

abstract jetty Aug 21, 2019, 2:28 PM

#

How do I get my EditorViewport to render a different scene then the current edited level?

dense wharf Aug 21, 2019, 8:23 PM

#

can't build the engine 4.22.3 getting this error

#

[1/2] UE4Editor-GoogleVRController.dll
1> Creating library C:\UnrealEngine-release\Engine\Plugins\Runtime\GoogleVR\GoogleVRController\Intermediate\Build\Win64\UE4Editor\Development\GoogleVRController\UE4Editor-GoogleVRController.suppressed.lib and object C:\UnrealEngine-release\Engine\Plugins\Runtime\GoogleVR\GoogleVRController\Intermediate\Build\Win64\UE4Editor\Development\GoogleVRController\UE4Editor-GoogleVRController.suppressed.exp
1>GoogleVRWidgetInteractionComponent.cpp.obj : fatal error LNK1318: Unexpected PDB error; OK (0) ''
1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\Microsoft.MakeFile.Targets(44,5): error MSB3075: The command "....\Build\BatchFiles\Build.bat -Target="ShaderCompileWorker Win64 Development" -Target="UE4Editor Win64 Development" -WaitMutex -FromMsBuild" exited with code 5. Please verify that you have sufficient rights to run this command.
1>Done building project "UE4.vcxproj" -- FAILED.

elder falcon Aug 21, 2019, 8:24 PM

#

just build it again

#

no one seems to know what this error means, it happens sometimes, and when you try again, it doesn't

dense wharf Aug 21, 2019, 8:24 PM

#

rebuild you mean?

elder falcon Aug 21, 2019, 8:25 PM

#

nah just normal build

dense wharf Aug 21, 2019, 8:25 PM

#

i get that error every time

elder falcon Aug 21, 2019, 8:25 PM

#

strange

#

it's never shown more than once in a row for me

dense wharf Aug 21, 2019, 8:25 PM

#

can i disable that vrcontroller i dont use it

elder falcon Aug 21, 2019, 8:25 PM

#

yeah, you can disable all plugins you don't use

#

...though it's a bit difficult to do with the engine not built yet

dense wharf Aug 21, 2019, 8:26 PM

#

maybe i can remove that source file or something

#

okay that worked lol

#

deleted the vrcontroller

#

from the plugins folder

modern shore Aug 22, 2019, 5:28 AM

#

still mega stuck with this... anyone have an idea what might be causing it?

📎 unknown.png

spiral mortar Aug 22, 2019, 7:39 AM

#

@modern shore wrong loading phase on a plugin maybe

#

Check the log

hearty sand Aug 22, 2019, 9:24 AM

#

How does one remove the Engine Source out of a Project Solution again?

#

I'm sick of random recompiling

#

Well not remove but remove it from any form of possible compile act

elder falcon Aug 22, 2019, 9:25 AM

#

pretty sure you have to make an installed build to achieve that?

hearty sand Aug 22, 2019, 9:38 AM

#

I'm half sure someone wrote a couple weeks ago that they removed it from VS in a way that it just doesn't try to build that project

elder falcon Aug 22, 2019, 9:38 AM

#

but that's not how it works, if you ask ubt to build ProjectEditor target that includes the engine modules

#

unless installed

hearty sand Aug 22, 2019, 9:39 AM

#

But the Binaries of the UE4 Project in the Solution usually stay untouched

#

Unless you actively modify it

elder falcon Aug 22, 2019, 9:39 AM

#

vs solution only exists to view the code, nothing you set there has any effect on the actual build

hearty sand Aug 22, 2019, 9:39 AM

#

Well that's maybe a bit missleading given the name:

UE4 Project -> UE4 Source in the Solution
Actual Project -> Game Project in the Solution

#

Well it recompiles the UE4 Source randomly.

#

I basically just hit the Debug button at the top (F5) and the Engine started to rebuild

elder falcon Aug 22, 2019, 9:40 AM

#

when you build your project from vs, it runs this command and that's the end of vs' involvement

📎 unknown.png

#

none of the solution settings other than this do anything

hearty sand Aug 22, 2019, 9:41 AM

#

I can only tell you that I just simply hit F5 on a Game Project that uses UE4 Source and that I didn't modify Source itself

#

And yet it just recompiled it + the project

elder falcon Aug 22, 2019, 9:42 AM

#

do you have multiple versions of vs installed

hearty sand Aug 22, 2019, 9:42 AM

#

And it was not a "Rebuild" button I hit

#

Yes, but only 2019 for UE4

elder falcon Aug 22, 2019, 9:42 AM

#

I found that it sometimes randomly rebuilds the engine for no reason when not forcing a specific version of vs in build configuration

#

as if there were some paths it can build that project that lead to it picking the wrong version

hearty sand Aug 22, 2019, 9:43 AM

#

Right, well I'm pretty sure I'm not doing anything wrong, as I could now close UE4, change project code and hit F5 and it would not rebuild the engine

#

Unless it feels funny enough to put me through 2000+ actions

#

1>------ Build started: Project: DotNETUtilities, Configuration: Development Any CPU ------
1>  DotNETUtilities -> E:\UE4\Engine\UE_4.22_Source\Engine\Binaries\DotNET\DotNETUtilities.dll
2>------ Build started: Project: UnrealBuildTool, Configuration: Development Any CPU ------
2>  UnrealBuildTool -> E:\UE4\Engine\UE_4.22_Source\Engine\Binaries\DotNET\UnrealBuildTool.exe
3>------ Build started: Project: Hoverloop, Configuration: Development_Editor x64 ------
3>Creating makefile for ShaderCompileWorker (UnrealBuildTool.exe is newer)
3>Creating makefile for HoverloopEditor (UnrealBuildTool.exe is newer)
3>Using Visual Studio 2019 14.22.27905 toolchain (C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.22.27905) and Windows 10.0.18362.0 SDK (C:\Program Files (x86)\Windows Kits\10).
3>Building 2255 actions with 16 processes...```

#

"UnrealBuildTool.exe is newer" okay? hm

#

I didn't touch VS or UE4 Source since yesterday evening

#

No idea why this is newer

elder falcon Aug 22, 2019, 9:44 AM

#

next time it happens check ubt log

#

it writes for each action why it thought it was outdated

hearty sand Aug 22, 2019, 9:45 AM

#

Alright

elder falcon Aug 22, 2019, 9:45 AM

#

Engine\Programs\UnrealBuildTool\Log.txt

hearty sand Aug 22, 2019, 9:46 AM

#

Just a lot of "Contents have changed"

#

SharedPCH.Slate.cpp: Prerequisite SharedPCH.Slate.h.pch.response is newer than the last execution of the action: 22.08.2019 11:16:19 vs 16.08.2019 13:52:46

#

(for example)

#

16.08 was the last time this happened iirc

#

So it just thought the engine build is outdated

elder falcon Aug 22, 2019, 9:47 AM

#

SharedPCH.Slate.h.pch.response contains the compiler arguments for that action

#

it shouldn't be rewritten if no configuration changed

#

anything for that action further up?

hearty sand Aug 22, 2019, 9:48 AM

#

FileItem.CreateIntermediateTextFile: Updating E:\UE4\Engine\UE_4.22_Source\Engine\Intermediate\Build\Win64\UE4Editor\Development\Slate\SharedPCH.Slate.h.pch.response: contents have changed. Saving previous version to E:\UE4\Engine\UE_4.22_Source\Engine\Intermediate\Build\Win64\UE4Editor\Development\Slate\SharedPCH.Slate.h.pch.response.old.

#

That's more or less it

elder falcon Aug 22, 2019, 9:49 AM

#

what's the difference between those two files

#

there has to be a reason it did this

hearty sand Aug 22, 2019, 9:50 AM

#

I think

#

It was a Windows update

#

wtf

#

/I "C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um"

#

That changed to version 4.6.2

elder falcon Aug 22, 2019, 9:50 AM

#

if you update vs/windows in a way that changes anything related to the compiler, it must rebuild everything

hearty sand Aug 22, 2019, 9:50 AM

#

I didn't even have a windows update since yesterday

#

The last update was 3 days or so ago

#

Ah well

elder falcon Aug 22, 2019, 9:51 AM

#

br_thinking

hearty sand Aug 22, 2019, 9:51 AM

#

At least I know now why this could happen

#

And also how to check why

#

Thanks so far!

stable hemlock Aug 22, 2019, 12:42 PM

#

📎 unknown.png

#

I am trying to create a node of my own by modifying another function

#

I added the funcion to header file as well

#

but I cant seem to call it inside the editor

#

Anyone knows why ? (Its my first time fiddling with the source code)

#

ooh

#

do i need to install non launcher version ?

elder falcon Aug 22, 2019, 12:46 PM

#

if you want to modify the engine, you have to use a source build

stable hemlock Aug 22, 2019, 12:46 PM

#

ugh thanks so no way around it right ?

elder falcon Aug 22, 2019, 12:47 PM

#

do you have to modify the engine?

#

maybe you can implement whatever it is you want to do from your project

stable hemlock Aug 22, 2019, 12:47 PM

#

well

#

📎 unknown.png

#

I probably can

#

I need this function

#

but with a pause instead of stop

#

It would be useful in the future as well

modern shore Aug 22, 2019, 3:38 PM

#

@spiral mortar that is default engine install, I am trying to start editor. The log shows the same thing - its compiling default editor shaders then that message:

[2019.08.22-05.33.52:738][ 0]LogShaderCompilers: Display: Worker (7/9): shaders left to compile 5458
[2019.08.22-05.33.52:738][ 0]LogShaderCompilers: Display: Worker (3/9): shaders left to compile 5457
[2019.08.22-05.33.52:738][ 0]LogWindows: Error: === Critical error: ===
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error: Fatal error: [File:C:/Users/max/Documents/GitHub/UnrealEngine/423/Engine/Source/Runtime/RenderCore/Private/RenderingThread.cpp] [Line: 836]
[2019.08.22-05.33.52:738][ 0]LogWindows: Error: Rendering thread exception:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error: Assertion failed: !bInitializedSerializationHistory [File:C:/Users/max/Documents/GitHub/UnrealEngine/423/Engine/Source/Runtime/RenderCore/Private/Shader.cpp] [Line: 168]
[2019.08.22-05.33.52:738][ 0]LogWindows: Error: Shader type was loaded after engine init, use ELoadingPhase::PostConfigInit on your module to cause it to load earlier.
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:738][ 0]LogWindows: Error:
[2019.08.22-05.33.52:752][ 0]LogExit: Executing StaticShutdownAfterError
[2019.08.22-05.33.52:759][ 0]LogWindows: FPlatformMisc::RequestExit(1)
[2019.08.22-05.33.52:767][ 0]Log file closed, 08/21/19 22:33:52

#

this is fresh git pull on 4.23

#

not a project, just UE4Editor.exe alone

hollow wadi Aug 22, 2019, 9:27 PM

#

Hey do I remember correctly that the source code licence for ue4 treats editor code differently or something

#

I want to do a copy paste job on gltf to get it working at runtime

shrewd thorn Aug 22, 2019, 10:18 PM

#

Correct look up "Engine Tools" in the EULA, you cannot distribute them in your game

#

With the default license

stoic crane Aug 23, 2019, 2:03 AM

#

it's not as dire people seem to think though, because legal speak is always convoluted to try and cover as much as possible. if you fork the engine, you can distribute changes. if you do something in a plugin, it's fine as long as it's only sold on the marketplace, etc.

#

but you can't download the engine source from github, and then distribute it publically

#

in other words, you cannot share any "engine tools" code to anyone who can't either a) purchase from the marketplace, or b) already have access to github, basically.

#

afaik.

#

so if you made a plugin that has an editor module, and actually includes code copied from the engine and modified, and put it on something like gumroad; that is illegal, but if it's in the marketplace it' not.

#

again that's my understanding of the legal speaks in the eula.

spiral mortar Aug 23, 2019, 6:15 AM

#

That's not exactly true

#

You can put it on gumroad

#

What matters is whether your target is licensees or the general public

rain lake Aug 23, 2019, 10:32 PM

#

Anyone use Gauntlet and know how to send an Instance a Console Command?

frozen glen Aug 24, 2019, 9:10 PM

#

Does anyone know where I might find the code where UE converts actors to static mesh?

wild basin Aug 25, 2019, 2:18 AM

#

That's a thing?

#

If your able to search all it's components somehow you can search for static meshes that way...

stoic sedge Aug 25, 2019, 3:20 AM

#

There is a bug with the engine and navigation invokers past 4.21 i think

https://answers.unrealengine.com/questions/900092/nav-invoker-and-dynamic-mesh-not-working-in-packag.html

I'm having the same issue with it not working in packaged

azure surge Aug 27, 2019, 9:24 AM

#

One of my projects regularly causes the Unreal Editor to crash.

The trouble started, I believe, when I starting using the UProceduralMeshComponent in C++.

Weirdly, the crashes so far have only happened after the editor was open for at least 2 hours. And while I was editing (outside PIE).

#

At first I thought that maybe I was laying a landmine for UE's garbage collector somehow, but the crash dump says this:

OS version Linux 4.19.44-gentoo (network name: tiamat)
Running 16 x86_64 processors (16 logical cores)
Exception was "SIGSEGV: unaligned memory access (SIMD vectors?)"

Callstack:
libUE4Editor-Engine.so!FKAggregateGeom::GetAggGeom() const
libUE4Editor-UMG.so!FWidget3DSceneProxy::RenderCollision() const
libUE4Editor-UMG.so!FWidget3DSceneProxy::GetDynamicMeshElements() const
libUE4Editor-Renderer.so!FSceneRenderer::GatherDynamicMeshElements()

Unaligned memory access?
Seems to happen when rendering collision volumes. That's also something I added only recently.

slender cedar Aug 29, 2019, 9:14 AM

#

hi!
I have a very basic engine functionality question. You can't make a child BP of a Static Mesh Component because it souldn't run logic.
Let's say that, through c++, I allow people to create child BP's of static mesh components so they can have logic (events, functions and so on).
I'm trying to have solid technical arguments against/in favour of this to understand the implications.
Does anyone know specific reasons.
All I have are educated opinions based on vague documentation

long wave Aug 29, 2019, 1:37 PM

#

Has anybody fixed the engine not being able to properly save TArray's to config files and read them back?

#

Seems to work in GlobalConfig but not Config

elder falcon Aug 29, 2019, 2:12 PM

#

I'm saving arrays of structs to config in 4.22 and it works fine

long wave Aug 29, 2019, 2:22 PM

#

To GameUserSettings.ini or similar?

#

I'm on 4.21

#

Whenever I load the config it wipes them as if they were never there

elder falcon Aug 29, 2019, 2:23 PM

#

to a new ini, using PerObjectConfig

#

it worked fine with just Config aswell but I didn't want changing the values to fuck with the bp defaults in the editor

long wave Aug 29, 2019, 2:29 PM

#

hmm.. strangely it only seems to be occurring in a shipping build (of course)

#

more investigation required I guess

stable hemlock Aug 30, 2019, 9:57 AM

#

Not sure if this is the right channel, but I got a question regarding the creation of custom blueprint graph node pins. So, I created a custom graph pin for my UStruct by following the examples in the engine source code and everything is working fine, ecept for when I connect something to the pin.

The thing is, I have a drop down menu with which i can select a value for the pin in case nothing is connected to the pin. The menu widget is created in SGraphPin::GetDefaultValueWidget, which I have overriden of course. And the engine source code says, that this widget will be rendered ONLY when nothing is connected to the pin.

But when I connect something to my pin, the widget is still being displayed. Is anyone familiar with this bug and knows what I'm missing?

stable hemlock Aug 30, 2019, 10:38 AM

#

Damn, i found the mistake lol

north pilot Sep 2, 2019, 2:10 PM

#

any pros in git source control via SSH please , help me on the GENERAL/source-controll channel. Thank you 🙃

late kettle Sep 3, 2019, 7:06 AM

#

Hello, could anybody please send me an invite to the UE4 Github source code as I am having huge trouble connecting my Epic Games account to a new Github account. The invite is the only thing I havent tried yet.
https://forums.unrealengine.com/development-discussion/engine-source-github/1657972-cannot-connect-my-account-to-github

Unreal Engine Forums

I needed to create a new Github account because of email unavailability on my older account and when I try to connect my UE4 account to Github inside my profile

#

Here is a video on what happens when I press connect button for Github -https://www.youtube.com/watch?v=pBRkXbUtF7k&feature=youtu.be

YouTube

NasteXify

GithubConnectionProblem Temp

▶ Play video

molten wadi Sep 3, 2019, 9:40 AM

#

When I use the Github search function in the UE4 repository, all the results I get seem to be from some random tree instead of the master branch, which to me seems like it would be the default option that makes sense.

📎 unknown.png

#

It's annoying to browse source code just to find out that you're looking at outdated code, is there some way I can make github only search in a specific branch?

hollow timber Sep 3, 2019, 4:12 PM

#

Hello, I'm currently looking at the new rendering pipeline from 4.22 and wander about this GPUScene buffer and raytracing capabilities... Does this means that if I do a raytrace in a raygeneration shader, all my primitive from my world will be tested for this trace ? Is there any culling anymore done on the CPU ? Or all is done on GPU ?

hidden hedge Sep 3, 2019, 4:17 PM

#

github's search is not good, it's better to just download that branch and search that in visual studio or notepad++ or whatever else

molten wadi Sep 4, 2019, 7:29 AM

#

😩 I guess I have to do that. I've recently tried doing grep on the source code of an ue4 branch and it works well but it's just so slow

haughty stirrup Sep 4, 2019, 12:46 PM

#

Hey guys, anyone know any workarounds after getting this issue?:

📎 unknown.png

#

We can open the project until we re-save our charplayer class, then we face this crash eerror.

half axle Sep 4, 2019, 1:06 PM

#

Anyone familiar with how UE4's motion blur system works? It seems like changing materials causes the motion blur velocities to be reset to 0. Is that correct?

celest viper Sep 4, 2019, 3:50 PM

#

Im in a weird situation here. I had a component on a C++ class that was a base for my character BP. Ive since removed that component, but somehow it lingers as part of my default object for that same class. Ive tried clearing the UE4 cache, rebuilding the entire engine, but I still get this warning about how it cant load the non-existent component. Any thoughts on how to clear that out?

sage sandal Sep 4, 2019, 5:15 PM

#

if you make a new bp subclassing it, does it go away?

#

rather is it there at all

#

if it isn't then prob you just need to poke your og blueprint by changing its parent temporarily. I had that bug before with something else. reparenting fixes the blueprint usually. if it is in the new one then you haven't built the code

stable hemlock Sep 4, 2019, 6:36 PM

#

Hello. I got a question. Since we have source code access, how can I unload/remove what engine code will be packaged inside the final game? My mobile game only uses Slate. I need to remove all the code that is responsible for rendering anything three dimensional (to decrease apk size). I have no idea where I can modify this low level stuff.

celest viper Sep 4, 2019, 7:07 PM

#

@sage sandal Yup the reparenting trick seems to do it. I was just about to try that before lunch, and sure enough reparenting to a base and back again seems to have cleared it out

spare phoenix Sep 4, 2019, 8:01 PM

#

@stable hemlock you can make slate-only apps

#

like what the SlateViewer is

stable hemlock Sep 4, 2019, 8:08 PM

#

Where can I find SlateViewer?

stable hemlock Sep 4, 2019, 8:25 PM

#

Nevermind. I am moving to the #slate chat

tired spade Sep 4, 2019, 8:59 PM

#

Does anyone know if ue4 plans on or already has deferred shading options when using forward rendering?

#

A huge disadvantage of forward shading is foilage overdraw and even though transparency “just works” as amd pointed out in their nice showcase it’s insanity to use transparency in VR

#

It’s extremely expensive

#

Opacity masked shaders in forward are also really expensive

#

Many in unity 5 have gotten around this by rendering foliage or hud elements in deferred while leaving everything else in forward

#

Due to deferred renderings ability to ignore most overdraw and not have “real transparency”

#

Currently the only thing I know that ue4 does is eliminate any overdraw in forward by simply culling the z buffer of additional transparency materials which when dealing with foliage or hud to foliage is horrible

finite shard Sep 4, 2019, 9:09 PM

#

isn't there a way to make a depth prepass for foliage? obviously requires them to only use masked transparency

frozen glen Sep 5, 2019, 2:33 AM

#

When I compile from source, why do I have to recompile the editor again inside my project when I try to compile it....?

spiral mortar Sep 5, 2019, 11:52 AM

#

Dang it I'm not part of the 4.23 contributors even though I got a PR accepted 😫

frozen glen Sep 5, 2019, 1:48 PM

#

Did anyone build from 4.23 source, create a C++ project and have to recompile the editor from their project?

pastel dew Sep 5, 2019, 2:59 PM

#

i built the engine from source (from github) when it was at v4.22 - how should i best upgrade that to 4.23? is there a git command i can use to update only changed/new files?

hollow timber Sep 5, 2019, 3:12 PM

#

[Rendering 4.22] Hello, I'm wondering if I can use the FRDGBuilder with the use of StruturedBuffer for my shader. I'm trying to lock the structured buffer to fill it with data but can't find a way to convert a FRDGBufferSRVRef to a FStructuredBufferRHIParamRef. I'm creating it by calling the FRDGBuilder::CreateSRV. Any hints about how to do it... Can I use the Graph builder but using tradional function like RHICreateStructuredBuffer instead ?

brisk silo Sep 5, 2019, 4:46 PM

#

@elder falcon i checked for sure

#

there is indeed ISPC

#

which means...

#

what the actual fuck

#

why wasnt it on some of the previews

elder falcon Sep 5, 2019, 4:48 PM

#

maybe ubt was temporarily broken

brisk silo Sep 5, 2019, 4:48 PM

#

it wasnt on the filesystem im sure

#

i searched for .ispc and found nothing

elder falcon Sep 5, 2019, 4:48 PM

#

maybe someone screwed up a merge then and it was fixed? 🤔

rain lake Sep 5, 2019, 7:55 PM

#

anyone getting this with building a clean 4.23?

#

1>EXEC : [2/43] error : Syntax: cl-filter <dependencies-file> -- <child command line>
1>EXEC : [3/43] error : Syntax: cl-filter <dependencies-file> -- <child command line>
1>EXEC : [4/43] error : Syntax: cl-filter <dependencies-file> -- <child command line>
1>EXEC : [5/43] error : Syntax: cl-filter <dependencies-file> -- <child command line>
1>EXEC : [6/43] error : Syntax: cl-filter <dependencies-file> -- <child command line>```

frozen glen Sep 5, 2019, 8:03 PM

#

Does anyone know the method epic uses to compile and distribute their engine releases?

nocturne island Sep 5, 2019, 8:10 PM

#

@frozen glen what do you mean by method? Perhaps you are looking to make an InstalledBuild? https://docs.unrealengine.com/en-US/Programming/Deployment/UsinganInstalledBuild/index.html

Using an Installed Build

This page describes the Installed Build process, including an overview of how to write Installed Build scripts.

celest viper Sep 5, 2019, 8:54 PM

#

Anybody also pulling down WWISe for Unreal? Does their latest update drop in with 4.23? They only seem to indicate up to 4.22 from what I can tell

frozen glen Sep 5, 2019, 9:15 PM

#

@nocturne island When I build the editor from source and then create a C++ project, then build that project, it rebuilds the editor for that project instead of using the one that was used to create the C++ project in the first place

#

I've never had that issue with any of Epic's releases, so I'm wondering what's different

nocturne island Sep 5, 2019, 9:27 PM

#

@frozen glen I have recently noticed a similar issue - downloaded the Chaos Examples, switched to my compiled engine, and had to rebuild engine.... but only the first time I build the project after switching engines. Does it happen for you everytime?

frozen glen Sep 5, 2019, 9:31 PM

#

It happens on every project, chaos or not. I've tried an Installed Build also with the same result

#

It just doesn't make sense as to why it builds an additional editor instead of just linking against the already built editor

nocturne island Sep 5, 2019, 9:55 PM

#

@frozen glen How are you building... in VS make sure you are selecting the Project not the solution.

frozen glen Sep 5, 2019, 9:55 PM

#

I am building only project

nocturne island Sep 5, 2019, 9:55 PM

#

in top toolbar text box does it say UE4 or projectname

frozen glen Sep 5, 2019, 9:56 PM

#

ProjectName

#

It even creates the ProjectNameEditor.exe right in Binaries.

nocturne island Sep 5, 2019, 9:56 PM

#

hmmmm

frozen glen Sep 5, 2019, 9:56 PM

#

Binaries ends up being 12.9gb

nocturne island Sep 5, 2019, 9:57 PM

#

📎 unknown.png

#

lol 12gb

#

insane

frozen glen Sep 5, 2019, 9:58 PM

#

I'm not using Debug, I built my editor with the "Development Editor" configuration as instructed in the documentation

nocturne island Sep 5, 2019, 9:58 PM

#

thats fine

frozen glen Sep 5, 2019, 9:58 PM

#

Made sure my project matches it etc

nocturne island Sep 5, 2019, 9:58 PM

#

yeah Development Editor is waht u want

#

the rest looks the same though Hangar18 == YourProject

frozen glen Sep 5, 2019, 9:58 PM

#

Yeah

#

📎 unknown.png

nocturne island Sep 5, 2019, 9:59 PM

#

📎 unknown.png

#

right click and set as startup project

frozen glen Sep 5, 2019, 9:59 PM

#

Yeah my game is set as the startup project

#

📎 unknown.png

nocturne island Sep 5, 2019, 9:59 PM

#

hmmm im out of ideas

#

post on Answer Hub or Forums maybe

frozen glen Sep 5, 2019, 10:00 PM

#

So you're saying that a custom editor doesn't force you to rebuild your editor in your project?

nocturne island Sep 5, 2019, 10:00 PM

#

correct...

frozen glen Sep 5, 2019, 10:00 PM

#

Weird

nocturne island Sep 5, 2019, 10:01 PM

#

📎 unknown.png

#

What does your output say when it starts building

frozen glen Sep 5, 2019, 10:02 PM

#

1>------ Build started: Project: Ravenlorn, Configuration: Development_Editor x64 ------
1>Creating makefile for RavenlornEditor (no existing makefile)
1>Creating makefile for UnrealHeaderTool (no existing makefile)
1>Parsing headers for RavenlornEditor

#

Then it builds the editor

nocturne island Sep 5, 2019, 10:02 PM

#

mine is same...but it doesnt build editor

#

its like your dependencies make it think it needs to rebuild

frozen glen Sep 5, 2019, 10:03 PM

#

I DID compile the 4.23 editor with "bCompileChaos = true"

nocturne island Sep 5, 2019, 10:03 PM

#

any weird colck / time settings on the machine

frozen glen Sep 5, 2019, 10:03 PM

#

But I still don't see how that matters

nocturne island Sep 5, 2019, 10:03 PM

#

i did too on other project

frozen glen Sep 5, 2019, 10:03 PM

#

Nah, I've never had this issue with anything else, it's only ue4 source builds

nocturne island Sep 5, 2019, 10:04 PM

#

downloaded off github right

frozen glen Sep 5, 2019, 10:04 PM

#

Yup

nocturne island Sep 5, 2019, 10:04 PM

#

😦

frozen glen Sep 5, 2019, 10:05 PM

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Followed this guide verbatim, and multiple times with multiple settings to see if anything would give: https://docs.unrealengine.com/en-US/Engine/Chaos/ChaosDestruction/ChaosDestructionOverview/index.html

Chaos Destruction Overview

Overview of the Chaos Destruction tools that are available and how they work together to create destruction in UE4.

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I don't see why it's a big deal for Epic to just simply provide a release with chaos enabled

nocturne island Sep 5, 2019, 10:06 PM

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did you try the sample from Learn TAb?

frozen glen Sep 5, 2019, 10:06 PM

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Yeah

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Same issue

nocturne island Sep 5, 2019, 10:07 PM

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just stopped and started mine to verify... launches without building editor

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its gotta be some dependency check is broken

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so it thinks it has to rebuild

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did you modify build settings in engine build script