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NVIDIA GameWorks Integration

Epic has no interest in taking any of this into the main branch so it’s always going to be a separate one Nvidia maintains.

It already has, literally everything you’ve seen on it has been in the UE4.
https://github.com/NvPhysX/UnrealEngine/tree/CataclysmDemo

Nothing, it’s still here.
https://github.com/NvPhysX/UnrealEngine/tree/FleX

Depends on whether or not they have the time really, it’s inconsistent. Sometimes it’ll skip a version or two. You can always do it yourself though in theory.

can someone try to compile the newest Hairworks build with visual studio update 3? im getting errors all the time… ediate\Build\Win64\ShaderCompileWorker\Development\Core\Module.Core.8_of_8.cpp : error C4599: '/IC:\Program Files (x86)\Microsoft Visual Studio 14.0\

Well I fail to understand how FLEX is different from Cataclysm, I mean, they are both universal fluid solvers right?

Flex is a unified solver in the sense that it supports fluids, cloth, soft-bodies, made purely from particles. Cataclysm is a fluid-only solver based on the FLIP method, meaning it uses particles + a background grid, or volume texture, for one part of the fluid calculations. This allows it to scale to higher particle counts than Flex fluids, which are based on an SPH model. Personally I would recommend Cataclysm for large bodies of water, and Flex for small to medium scale effects like splashes, puddles (or if you need fluids to interact with other objects).

Is there still any chance of a DirectCompute version of Flex?

hey guys can someone confirm this??? Visual studio will not build ue4 hairworks - UE4 AnswerHub

The HairWorks branch is only at 4.12.4 which means it doesn’t contain the necessary fixes that are in 4.12.5 that allow VS2015 SP3 to work. Try my branch, its built to 4.12.5 and therefore works fine with VS2015 SP3, I know as thats what I am using.

Thank you GalaxyMan2015 for all your hard works.I am very happy that you after a long time released your branch.Well i have two questions:

1)Is this branch is like your last release 4.9.2 with vxgi,flex,hairwork and wavework?
2)Do you have any plane for releasing your branch again in 4.13 version.because of big features in 4.13 like vertex animation,alembic importer and so many features.if no can you explain briefly how i can merge all nvidia gamework branches into one like yours.
thanks for your reply.

yes and Cataclysm

There is really no step by step guide, sometimes its easy, especially when the branch NVIDIA has is the same version of UE4 as the one your merging into, such as it was this time around for most of them, other times its much more challenging, like upgrading WaveWorks from 4.9.2 to 4.12.5. As a lot of rendering changes were made, so had to modify a lot of code to make it work again.

Wow Cataclysm.thanks for reply

Hello, thank you for this compilation GameWorks. Everything works and vxgi is impressive.
That said, the anti-aliasing (FXAA and temporal AA) does not work with me. Do you know how to fix this?

Yet it is enabled in Project Settings and postprocessing. It is a rather annoying problem, thank you in advance. I use UE4 12.5

FXAA only works if I force in the nvidia driver. But AA temporal really does not want to work. I have tried disabling SLI, but it changes nothing.

Please, AA temporal is more important than VXGI, but I would really use VXGI too. I have no idea how to fix this …

For some reason, I had to set r.PostProcessAAQuality 4 in the console to get AA working.

Super, it worked, thank you! I was afraid not to use VXGI because of this problem. And I found no solution on google …

Thanks again.

Everything works fine with HairWorks, including simulation from animations and wind effects, but when my character moves around the hair doesn’t react at all.

What am I missing here?

You need to use root motion of some kind to have hair react to movement, as it will not respond to just the character moving around. ie. I animated the root bone of my animation to bob up and down to have the hair react to moving around.

Thanks for finding a solution, I’ll look into why its the case.

Unfortunately, this fix is only temporary. AA temporal off unexpectedly randomly … then have to re-enter the console command.
As long as you are in the GameWorks compilation, you will be it possible to add PhysX Dynamic Heightfield in addition to all that you have included?

It would be really great to have a ground which is deformed. I tried to integrate Polyvox to EU4, but I am not happened … I’m a beginner …

Probably not, as this would only take care of the collision data, would still need to rewrite the rendering portion to support actually changing the landscape tris. Not a trivial task, and I am not really in need of this functionality at this time.

I understand. Anyway I thank you again for compiling features nvidia, it’s really nice.