NVIDIA GameWorks Integration

[Mike.Skolones]

@joshezzell;227994

I have been following thread for awhile. I am very interested in NVIDIA’s game technology, but I am wondering what the process for getting these working is. Does it require a specific license to use these features, or is it available to everyone?

It is available to everyone with a UE4 subscription. Anything we post on the Github fork is freely available to UE4 licensees, per the Unreal Engine EULA.

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[anonymous_user_52a14607]

@.;227871

Hi,

I’ve pushed a new branch, HBAO+. I took these screenshots from a lighting demo level I downloaded in the marketplace. These pictures show HBAO+ enabled/disabled. There’s nothing special required to use HBAO+ with your existing levels in branch, just type “r.HBAO.Enable 1” at the console.

Enabled:

Disabled:

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Second image looks more realistic (the one with HBAO+ turned off).

[anonymous_user_c8558ff7]

@.;227942

Is it Win7, or Win8.1? Could you post the whole build log?

Thanks,

Win 7 64 bits, 's the log !

[Mikand79]

@;228122

Second image looks more realistic (the one with HBAO+ turned off).

Yea too heavy. Maybe it gets added up with all other possible AO options, in the first image

[Sitrec]

@Mikand79;228142

Yea too heavy. Maybe it gets added up with all other possible AO options, in the first image

I would guess it was posted more to show what it does rather than optimal usage.
Exaggerating the effect makes it much easier to see the quality.

[Mikand79]

I tested it with the Gynoid scene and (I imagine) it did add up, the letters in the back got almost black.

It looked much better after I disabled the normal AO post process and tweaked to HBAO+ settings down.

[Number47]

@.;227726

There is no connection between FleX and Lab at point, and none planned. FleX authoring is being built straight into the UE4 editor.

Thanks, do you have an eta. for documentation and/or tutorial videos?

EDIT - Found the documentation, note to self, always look in all the folders.

[Nudlegaru]

@;228156

Thanks, do you have an eta. for documentation and/or tutorial videos?

EDIT - Found the documentation, note to self, always look in all the folders.

What? A flex documentation? where is it located?

[Mike.Skolones]

@;228122

Second image looks more realistic (the one with HBAO+ turned off).

Those aren’t the best screenshots to show, sorry for that, I didn’t tune the settings at all and personally I like the effect of the heavy shadows in the corners, realistic or not. One of the HBAO+ team is picking a better scene, with better tuning, to show the advantages more clearly. I’ll post them soon.

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[Mike.Skolones]

@;228231

What? A flex documentation? where is it located?

Basic FleX documentation is :

UnrealEngine\Engine\Source\ThirdParty\FLEX-0.25\doc

and the UE4-specific FleX documentation is :

UnrealEngine\FlexProject\Documentation

[Nudlegaru]

@Mikand79;228149

I tested it with the Gynoid scene and (I imagine) it did add up, the letters in the back got almost black.

It looked much better after I disabled the normal AO post process and tweaked to HBAO+ settings down.

How did you disable normal AO (SSAO)? I want to disbale it to test HBAO+.

[Number47]

@.;228270

UnrealEngine\Engine\Source\ThirdParty\FLEX-0.25\doc

There is also a very nice documentation on how to author Flex assets in UE4 located at
\UnrealEngine\FlexProject\Documentation\

[Nudlegaru]

@.;227676

It’s Boolean, just ‘false’ (0) or ‘true’ (1). With ambient occlusion mode ‘true’, there is no diffuse or specular indirect lighting, but there is ambient lighting with its intensity controlled by r.VXGI.AmbientOcclusionScale.

The standard AO solutions (including UE4’s SSAO) should still be supported with our VXGI integration.
The SSAO is applied to the UE base lighting, and to our VXGI Diffuse term before adding it to the scene color buffer:
SceneColor = ScreenSpaceData.AmbientOcclusion float4(GBuffer.DiffuseColor x ScreenSpaceData.VxgiDiffuse, 0);

To see VXGI’s ‘Voxel AO’, try typing “r.VXGI.AmbientOcclusionMode 1” in the console

and then “r.VXGI.AmbientOcclusionScale XX” to scale the AO output by XX if needed; will do AO-only rendering which can be useful to fine-tune opacity voxelization.

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Thanks it works: increasing the scale gets you brighter shades and vice-versa.

@.;227871

Hi,

I’ve pushed a new branch, HBAO+. I took these screenshots from a lighting demo level I downloaded in the marketplace. These pictures show HBAO+ enabled/disabled. There’s nothing special required to use HBAO+ with your existing levels in branch, just type “r.HBAO.Enable 1” at the console.

–

Thank you for that branch, HBAO+ is among the best (if not the best) AO techniques. still worries me more about the utility and the efficiency of VXGI:if you need to enable SSR and HBAO+ to get reflections and AO with it, while I thought VXGI is able to generate dynamic direct and indirect diffuse/specular and AO according to the movements of the light source(when you the light source moves, of course every resulting effect I mentionned of it changes to some extent according to the lightsource position), without needing any extra hellp from post-process solutions like SSR or HBAO+ (at leats from what your videos tried to make us believe).

Anyway, if is the case, I really hope you create a branch including all game works together so we can enjoy both VXGI and HBAO+ at the same time. Thanks!

I also hope you collaborate with Epic to integrate IBL (Image Based Lighting) in UE4 coupled with VXGI to get the best results with PBR just like Mizuchi engine: watch?v=sYX9I3ONHc4

watch?v=DnTYhlxi-Cs#t=12

PS: anyone could help how to disable the normal AO (SSAO), in any scene in general so I can enable HABO+? Thanks !

[Mike.Skolones]

New example of HBAO+

Enabled:

Disabled:

[Mike.Skolones]

@;228334

Thanks it works: increasing the scale gets you brighter shades and vice-versa.

Thank you for that branch, HBAO+ is among the best (if not the best) AO techniques. still worries me more about the utility and the efficiency of VXGI:if you need to enable SSR and HBAO+ to get reflections and AO with it, while I thought VXGI is able to generate dynamic direct and indirect diffuse/specular and AO according to the movements of the light source(when you the light source moves, of course every resulting effect I mentionned of it changes to some extent according to the lightsource position), without needing any extra hellp from post-process solutions like SSR or HBAO+ (at leats from what your videos tried to make us believe).

Anyway, if is the case, I really hope you create a branch including all game works together so we can enjoy both VXGI and HBAO+ at the same time. Thanks!

I also hope you collaborate with Epic to integrate IBL (Image Based Lighting) in UE4 coupled with VXGI to get the best results with PBR just like Mizuchi engine: watch?v=sYX9I3ONHc4

watch?v=DnTYhlxi-Cs#t=12

PS: anyone could help how to disable the normal AO (SSAO), in any scene in general so I can enable HABO+? Thanks !

You do not need to enable HBAO+ with VXGI, there is a ‘Voxel AO’ option within VXGI. We are offering branches for HBAO+ and VXGI concurrently because there is yet no such thing as a single solution for all possible use cases, and developers should experiment with these techniques to determine which is best for any particular game and performance target.

I will be publishing an ‘all in one’ branch with all GameWorks features combined as soon as possible.

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[Nudlegaru]

@.;228337

New example of HBAO+

Enabled:

Disabled:

Good example, where did you get sych example from? Will you release it?

@.;228352

You do not need to enable HBAO+ with VXGI, there is a ‘Voxel AO’ option within VXGI. We are offering branches for HBAO+ and VXGI concurrently because there is yet no such thing as a single solution for all possible use cases, and developers should experiment with these techniques to determine which is best for any particular game and performance target.

I will be publishing an ‘all in one’ branch with all GameWorks features combined as soon as possible.

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Thank you very much. BTW, 4.7 is up just right now, please update all the branches and create the new branch for 4.7. Great thanks.

[Mike.Skolones]

@;228361

Good example, where did you get sych example from? Will you release it?

Thank you very much. BTW, 4.7 is up just right now, please update all the branches and create the new branch for 4.7. Great thanks.

One of the developers on the VXGI team gave me those screenshots, I’ll inquire as to releasing the assets.

I’ll be working on the 4.7 upgrade ASAP, but it will take some time.

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[anonymous_user_c8558ff7]

, any news about that Automationtool error I got while packaging the VXGI project?

[Mike.Skolones]

@;228399

, any news about that Automationtool error I got while packaging the VXGI project?

No news yet, sorry. Very busy week of GDC prep. We’ll get to it ASAP.

Thanks,

[anonymous_user_c8558ff7]

@.;228419

No news yet, sorry. Very busy week of GDC prep. We’ll get to it ASAP.

Thanks,

No worries ! I’m trying to fix it myself, if I found the turn around I’ll let you know!