NVIDIA GameWorks Integration

[Cube2222]

Place for NVIDIA Gameworks discussion and information about the integration of gameworks into ue4 and its progress.

Please put any issue reports and questions here to keep it better structured, and not mix everything together:
https://github.com/NvPhysX/UnrealEngine/issues


Old: So, as I was asked to put this question here, is there any work being done on integrating NVIDA Gameworks technologies? As it would be really awesome to have them i the engine.

[xermao]

xermao are those just intellisense errors? if so, it'll still compile fine. FleX changes don't touch behavior trees so you probably see the same warnings if you compile regular 4.21 as well.

I fix this problem as CRYOMEN said,but another problem appear.
in this picture,if a cloth is not on the floor,it is fine,but when it fall to the floor,there will be a weird shadow.

[0lento]

xermao are those just intellisense errors? if so, it'll still compile fine. FleX changes don't touch behavior trees so you probably see the same warnings if you compile regular 4.21 as well.

[xermao]

0lento I compile your 4.21-flex,but get some error.
25>H:\Source\ue4_gameworks\UnrealEngine\Engine\Source\Editor\BehaviorTreeEditor\Private\DetailCustomizations\BlackboardSelectorDetails.cpp(173): error C4800: Implicit conversion from 'const wchar_t *' to bool. Possible information loss
25> H:\Source\ue4_gameworks\UnrealEngine\Engine\Source\Editor\BehaviorTreeEditor\Private\DetailCustomizations\BlackboardSelectorDetails.cpp(173): note: consider using explicit cast or comparison to nullptr to avoid this warning
25> [2/235] Module.DetailCustomizations.1_of_4.cpp
25>H:\Source\ue4_gameworks\UnrealEngine\Engine\Source\Runtime\Core\Public\Misc/Attribute.h(43): error C4800: Implicit conversion from 'const OtherType' to bool. Possible information loss

[Alex Colby]

thank you very much 0lento for these new branches with flex included

You are a genious. You are big !!

[0lento]

We recently updated to 4.21 and merged your HBAO+ version for 4.21 into our engine as well. Unfortunately since then we have the problem that the AO seems to be leaking from the main viewport into all other editor viewports, which is very visible in other editor preview screens.

Bit late but I just tested this while upgrading 4.21-GameWorks. What you showed on your screenshot doesn't happen for me, not in deferred nor in forward so I'd guess there's some issue on the merge on your custom engine?

Any plans to include Flex in this soon?

Wasn't soon but it's now included on 4.21.

I added FleX to my 4.21 branches, thanks for the trashbyte and karma4jake for the FleX fixes (also added small credits section to my GW branches readme's):
https://github.com/0lento/UnrealEngine/tree/4.21-FleX (just UE 4.21.2 and Nvidia FleX)
https://github.com/0lento/UnrealEngi...4.21-GameWorks (4.21.2 and Nvidia Blast, FleX, Flow, HairWorks, HBAO+, TXAA, VXGI 2)
https://github.com/0lento/UnrealEngi...orks+WaveWorks (4.21.2 and Nvidia Blast, FleX, Flow, HairWorks, HBAO+, TXAA, VXGI 2, WaveWorks)

[JulesIIIger]

I'll merge FleX to 4.21-GameWorks and 4.21-GameWorks+WaveWorks branches next once I can verify the integration along with other GW techs doesn't break anything, still doing first build atm.

Thanks for all your hard work - looking fwd to it!

[0lento]

Small update on 4.21 FleX:

I did check the trashbyte's changes. There were tons of unrelated things I cleaned out and eventually just ended up taking physx api fixes and added the FORCEINLINE karma4jake mentioned on the previous page and added these on top of my old WIP branch and cleaned that one as well. 4.21 FleX can be found here:

https://github.com/0lento/UnrealEngine/tree/4.21-FleX

FleX does work with this setup now but I had to disable the uniform buffer checks as was also done on the trashbyte's repo. I'm not super happy about this but removing the checks doesn't appear to break anything. I did test all test maps in the editor to work properly and did a development conf packaging test on Win64 (my Gameworks repos probably don't even work properly on Win32 as Nvidia Blast integration doesn't ship binaries for it).

I'll merge FleX to 4.21-GameWorks and 4.21-GameWorks+WaveWorks branches next once I can verify the integration along with other GW techs doesn't break anything, still doing first build atm.

[Alex Colby]

Thanks 0lento !!

Thanks for your hard work

[0lento]

There's also my old 4.22 Flow port here: https://github.com/0lento/UnrealEngi.../4.22-Flow-WIP but it doesn't render fluids either. Fluid sim itself works, just not the rendering, so you can still use it with cascade particles but that's not what most people would use Nvidia Flow with. It's really the rendering side changes that make 4.22+ ports hard now.

[0lento]

Someone who knows and has the necessary knowledge can mix them and get the 4.22 with flex and blast

Do note that 4.22 FleX port doesn't render fluids as stated here:

I ported FleX to 4.22 based on 0lento's 4.20 integration, without fluid rendering (too much conflicts): https://github.com/xoyojank/UnrealEngine/tree/4.22-FleX

[Alex Colby]

I found these two branches in this same forum of xoyojank and dyanikoglu

https://github.com/xoyojank/UnrealEngine/tree/4.22-FleX
https://github.com/dyanikoglu/UnrealEngine/tree/4.22-Blast

Someone who knows and has the necessary knowledge can mix them and get the 4.22 with flex and blast

I am not an expert on this


thanks to all who make this forum possible

[Alex Colby]

I merged Flex 4.21 port from here:
https://github.com/trashbyte/UnrealE...tree/4.21-FleX

into 0lento's 4.21 Gameworks branch (without Waveworks).

I tested everything and it all builds and seems to be working fine, here is the link:

https://github.com/karma4jake/UE4_Ga...Gameworks+Flex

I can submit a pull request after further testing to make sure everything is in order,

@karma4jake, can you please do the same but with the 4.21 olento waveworks branch?

Thanks for you work

[karma4jake]

I didn't change anything besides adding back "forceinline" to that one file mentioned on previous forum page. Credit to byte or trashbyte,

[0lento]

I can submit a pull request after further testing to make sure everything is in order,

Ah, don't need to PR it to mine as I prefer checking the changes myself so I clean them up and and then include the fixed FleX, I do appreciate the work however. I'll check trashbyte's and your changes as I'm actually curious what happened with the compilation issue on my old wip branch for this so want to do the diffs to see where it went wrong as well. Thanks for this!