NVIDIA GameWorks Integration

[Miles.Macklin]

@brycelynch;591295

It turns out the Boolean bFlexFluidSurface is not initialized to false in FPrimitiveSceneProxy constructor which caused random meshes to be marked as Flex Surfaces because of garbage values. Once was true the primitives got randomly pulled into the SurfaceSceneProxies array in the FFlexFluidSurfaceRenderer::UpdateProxiesAndResources function.

The fix was simple, add bFlexFluidSurface = false into the FPrimitiveSceneProxy::FPrimitiveSceneProxy (const UPrimitiveComponent* InComponent, FName InResourceName) constructor function.

Thank you! I will make sure fix gets into the main branch.

[zlz_showtime]

@Can you point me to where the tutorial/example files are for FLEX? Thinking about tooling around with some of the liquid physics and how they interact with Waveworks.

[juliax]

Hi , do you plan an integration of tressfx in your gameworks branch
Thanks, regards

[anonymous_user_70c8d330]

@;581615

I have a question about flex softbodys. When an object is moving into a soft body it clips through after there is to much pressure. Is there a possibility to make it impossible to clip through by letting it stretch infinite without clipping? Or by making the object stop automatically before it starts to clip?

a quick example video where you see the kind of clip I want to prevent:

v=tqZwSogE7DE

If anyone can help me it would be much appreciated and thanks for all the work of implementing Gameworks to UE4!!

So none has a idea how to handle ? Sorry for asking again but I am really in struggle to handle that problem

[Korcan]

Impossible (Right now i don’t know but i used flex at 4.10). Flex almost suitable for only visualization.

There are 2 options if suitable for you.

1. Move your object with force. Not with setting transform. With way flex interacts and create impulse.

2. Create another volume in your softbody until bending limits. If your actor collides with volume inside your softbody than stop movement.

[jmalaska]

Just getting started with Flex. Does anyone know how to control the amount of particles per map? I’m not seeing much in the emitter itself (no expert, though). Also how can you control the overall size/collision of the particles?

I’m trying to make fine water. Is there a place to adjust the viscosity of the particles too? I saw a bunch of parameters in the Flex standalone demo, but having trouble finding them in Unreal.

[anonymous_user_bcf66e2c]

@zlz_showtime;591915

@Can you point me to where the tutorial/example files are for FLEX? Thinking about tooling around with some of the liquid physics and how they interact with Waveworks.

The tutorial project should be under the Samples folder in Engine. Its called FlexProject I think.

@juliax;592152

Hi , do you plan an integration of tressfx in your gameworks branch
Thanks, regards

No

@jmalaska;593203

Just getting started with Flex. Does anyone know how to control the amount of particles per map? I’m not seeing much in the emitter itself (no expert, though). Also how can you control the overall size/collision of the particles?

I’m trying to make fine water. Is there a place to adjust the viscosity of the particles too? I saw a bunch of parameters in the Flex standalone demo, but having trouble finding them in Unreal.

All those options are available in the flex container itself. Particle count, size, collision in the top half and viscosity and other liquid settings in the bottom (you need to enable fluid to edit them i think)

[zlz_showtime]

@;593333

The tutorial project should be under the Samples folder in Engine. Its called FlexProject I think.

No dice. Does it matter to you that I’m using the 4.9 branch?

[anonymous_user_bcf66e2c]

No dice. Does it matter to you that I’m using the 4.9 branch?

Yes it wont exist in that branch at all. For 4.9.2 you’ll have to download the nvidia flex branch and obtain the project from it

[anonymous_user_70c8d330]

@Korcan;592882

Impossible (Right now i don’t know but i used flex at 4.10). Flex almost suitable for only visualization.

There are 2 options if suitable for you.

1. Move your object with force. Not with setting transform. With way flex interacts and create impulse.

2. Create another volume in your softbody until bending limits. If your actor collides with volume inside your softbody than stop movement.

Thank you! moving with impulse and physics enabled sounded very interesting. I tried it and no mater how small the in impulse, mass and how slow the object was the collision with the soft body did not slow it down. Do I have to do anything before it does that?

[zlz_showtime]

Getting errors from my compile, not 100% sure whats going, anyone run into one before?

[anonymous_user_70c8d330]

@zlz_showtime;593955

Getting errors from my compile, not 100% sure whats going, anyone run into one before?

I don’t know if it is the reason but witch VS version with witch update are you using? Because I think there are problems with vs 2015 update 3.

[zlz_showtime]

@;593960

I don’t know if it is the reason but witch VS version with witch update are you using? Because I think there are problems with vs 2015 update 3.

I’m using VS2015 with 4.12. Special note: I have 4.9.2 installed in a different folder (eg Docs/github/unreal & docs/github/4.12)

[anonymous_user_70c8d330]

@zlz_showtime;594058

I’m using VS2015 with 4.12. Special note: I have 4.9.2 installed in a different folder (eg Docs/github/unreal & docs/github/4.12)

VS2015 with update 1, 2 or 3? Not talking about the unreal version.

[jmalaska]

I just grabbed the VXGI fork, and am having some problems building.

I can run Setup.bat fine, and it downloads the files. However when I run GenerateProjectFiles.bat, it says I don’t have VS installed. However I do, and I can Generate project files and build other forks like the Cataclysm and FLEX ones.

Anyone know what might be up?

[mhnoni]

I have downloaded 4.12.5 nvidia tech but i get error during compiling with vs 2013 , any advice pls ?

[zlz_showtime]

@;594095

VS2015 with update 1, 2 or 3? Not talking about the unreal version.

Update 3 is what i got.

[anonymous_user_70c8d330]

@zlz_showtime;594136

Update 3 is what i got.

Ahh yes it does not seem to work with upgade 3 https://forums.unrealengine/showthread.php?115466-PSA-Don-t-update-your-visual-studio-2015-to-update-3 To downgrade by Control Panel -> Programs -> Programs and Features -> Installed Updates -> find the one you don’t like -> Uninstall (update 3 in your case)

[anonymous_user_bcf66e2c]

I have downloaded 4.12.5 nvidia tech but i get error during compiling with vs 2013 , any advice pls ?

The 4.12.5 branch and the 4.13 branch do not compile with VS2013. You will want to use the 4.9.2 branch instead

[mhnoni]

@;594406

The 4.12.5 branch and the 4.13 branch do not compile with VS2013. You will want to use the 4.9.2 branch instead

@ Thanks mate for the answer and your time to release the ready branch for us , i was able to run yours 4.12.5 after installing VS2015 .

Anyone can upload for us executable project that have Cataclysm tech ? i have win 10 and gtx 770 which suppose to be dx 12 as peer dxdiag but i can’t see the flood no matter what , since the morning and searching the web with no luck i hope one of you guys who were able to run Cataclysm can cook it for us and share it at lest we know if our GPU can run it which what i 'm afraid off