Luoshuang's GPULightmass

[Lesuge]

this is Luoshuang's GPULightmass thread, can you open a new one for general GPU Lighmass discussion?

[Farshid]

i dont see gpu lightmass plugin in 4.25 preview 1

[danielr201448]

hi is there a easy way to inbstall the gpu lightmass im not a programer so i dont know nothing about coding i mean i cant find that easy bat installer that lets you choose the quality does anyone have that .bat installer for 4.24.2 ?? pleaseeeee

[Lesuge]

hi is there a easy way to inbstall the gpu lightmass im not a programer so i dont know nothing about coding i mean i cant find that easy bat installer that lets you choose the quality does anyone have that .bat installer for 4.24.2 ?? pleaseeeee

you can download the code here: https://www.dropbox.com/sh/iejfroyne...2Z90q7cfa?dl=0

after you downloaded the "Engine" folder you can go to C:\Program Files\Epic Games\UE_4.24 and replace the "Engine" folder. If you wanna change the Quality Settings, you can create a Lightmass.ini file in your Project "Config" folder.


now you can set or change these values:

FastPreview:
NumPrimaryGISamples=16
NumSecondaryGISamples=8

MediumQuality:
NumPrimaryGISamples=32
NumSecondaryGISamples=16

UltraHigh:
NumPrimaryGISamples=64
NumSecondaryGISamples=16

Extreme:
NumPrimaryGISamples=128
NumSecondaryGISamples=32

[pax invictus]

GPU Lightmass 4.24.3

Binaries download

Source code

[C3D]

Thank you for this release! Works for me.

Could somebody clarify what is going on at the moment with GPU Lightmass?

Luoshuang is not working on this particular GPU Lightmass Lightmap renderer anymore himself?

But he is working on an official DXR GPU Lightmass Renderer that will be part of an official UE4 release in the future (4.26 maybe)?

Is this correct?

[fco3d]

GPU Lightmass 4.24.3

Binaries download

Source code

Thank you very much for this.
I can't access the Sources code, I get an 404 error every time I do have a basic account in github, there is something I am missing?
Thank you

[NiukNiuk]

Thank you very much for this.
I can't access the Sources code, I get an 404 error every time I do have a basic account in github, there is something I am missing?
Thank you

You have to link your epic account to your github account.
See here:
https://docs.unrealengine.com/en-US/...ine/index.html

[fco3d]

Thank you @NiukNiuk
Thanks much.

[DsyD]

Thank you for this release! Works for me.

Could somebody clarify what is going on at the moment with GPU Lightmass?

Luoshuang is not working on this particular GPU Lightmass Lightmap renderer anymore himself?

But he is working on an official DXR GPU Lightmass Renderer that will be part of an official UE4 release in the future (4.26 maybe)?

Is this correct?

That's pretty much correct, as far as I know.

It seems that dev-rendering is the only branch that currently has the upcoming DXR GPULightmass on it. You can follow its commits here (obviously includes a lot of non-GPULM stuff) https://github.com/EpicGames/UnrealE.../dev-rendering

[tc22]

If you want to test the GPULightmass prototype:

* Download dev-rendering branch from GitHub and build it.

* Enable ray tracing (including switching default RHI to DX12 and check 'ray tracing'. And having a DXR capable graphics card with Win10 version >= 1809).

* Enable virtual texture and virtual texutured lightmaps in project settings (optional, yet without this realtime preview in editor will be unavailable).

* Enable GPULightmass plugin and restart the editor currently no UI has been setup, so just a bunch of console commands r.GPULightmass.xxxx controls parameters and finally, ToggleLightmapPreview to start GPULightmass in editor.

* GPULightmass throttles itself when the level editor viewport is realtime. To make it run at full speed, uncheck 'realtime' in the viewport options.

P.S.:I tested this on my GTX 1070. Everything is working fine.

HI thank you svv3d!
it worked , but how can i reduce noise for scene ?

[Jimmy HUA]

I got the GPULightMass for verision 4.24.1. However, I got a result with a lot of noise even I set the lighting quality to product level. Also, I increased some parameters in BaseLightmass.ini, and it was the same. So, need I change any other parameters? or It is the GPULightmass algorithm defect?
Thanks

[ArsitekVisual]

Can someone advice me how to solve this ?

I am using unreal engine version 4.24.2

GTX zotact 1070.

I have installed gpu lightmass as instructed for version 4.24.2

My GPU only works at 4%-5%

How to make it work 100% using GPU lightmass ?

[NiukNiuk]

Can someone advice me how to solve this ?

I am using unreal engine version 4.24.2

GTX zotact 1070.

I have installed gpu lightmass as instructed for version 4.24.2

My GPU only works at 4%-5%

How to make it work 100% using GPU lightmass ?

https://forums.unrealengine.com/deve...htmass/page101

EDIT: woops sorry, didn't see your last screenshot

[ArsitekVisual]

https://forums.unrealengine.com/deve...htmass/page101

EDIT: woops sorry, didn't see your last screenshot

Hi, Thank You for the solution. I have change it to cuda as seen on the attached screenshot, but my issue is that on the left side of task manager under performance tab, my GPU is still working at 5% power, not showing around 90% of its power.

I have played this GPU lightmass before in unreal engine 4.19. and everything was fine. but now I have no idea after updating my windows 10 and unreal engine to 4.24


Thanks.