Luoshuang's GPULightmass

[Luoshuang]

Anyways, here are some screen captures of bakes done with UE4 and Cycles just for your reference.

Did you turn off SSAO when comparing? From my personal experience a path tracer would output 'lighter' corner darkening (I'm not using the term 'AO' here because AO is an approximation to the general path space illumination)

[marcClintDion]

Did you turn off SSAO when comparing?

Thank you, I didn't think of that. I was messing around with indirect lighting to try and brighten up the recessed areas and was just washing out the brighter areas.

http://pasteall.org/pic/719e2680e9f2...d290a2e35f1732

[schauk]

hey guys, i'm facing some interesting issues: the more props i add to my scene, the worse the quality of the lighting gets with gpu lightmass. don't know if it happend prior to 4.20.3, used 4.20.2 before and everything looked fine. one pic is with added props (hidden) and one with deleted props

[Morningcoffee007]

hey guys, i'm facing some interesting issues: the more props i add to my scene, the worse the quality of the lighting gets with gpu lightmass. don't know if it happend prior to 4.20.3, used 4.20.2 before and everything looked fine. one pic is with added props (hidden) and one with deleted props

Did you try unchecking the "compress lightmaps" option?

[schauk]

Did you try unchecking the "compress lightmaps" option?

yep, it is already checked since starting the project. i didn't change anything besides upgrading to 4.20.3 and adding some simple props.

[Situx]

yep, it is already checked since starting the project. i didn't change anything besides upgrading to 4.20.3 and adding some simple props.

Are you sure you are using GPU lightmass? Have you reinstalled it after upgrading? If so, what quality variables are you using?

[schauk]

Are you sure you are using GPU lightmass? Have you reinstalled it after upgrading? If so, what quality variables are you using?

i did ( overwrited the files after upgrading with the unifed ones and made sure the .dll files are allowed.) and yep, im using gpu lightmass, since the gpu batch processing appears and the qualitysettings (preview, medium, production) dont really change a thing. i tried different values in the overwrited lightmass ini.-file ( 32/16, 64/32 and so on) to change the quality, but apart of longer rendertimes it gets only slightly better. as i said, the two shown pictures are the exact same level with same quality, light-settings and lightmap sizes (red in opti-viewmode) but deleted furniture in one pic, so its extremely strange. im using a 1070gtx btw

[chalkgsy]

Just add something on the the issue by Schauk..... I'm about to experiment with this but is it advisable to wait for a 4.20.3 version? Or should the 4.20.2 version work with that?

[pxlntwrk]

Just add something on the the issue by Schauk..... I'm about to experiment with this but is it advisable to wait for a 4.20.3 version? Or should the 4.20.2 version work with that?

GPULightmassIntegration-4.20.2-UnifiedSettings works well here with 4.20.3

[motorsep]

Now we just need 4.21.x support

[AMontali]

Great work on this feature! Will the RTX be supported soon? What about multi-GPU support?

[zeldads]

Great work on this feature! Will the RTX be supported soon? What about multi-GPU support?

It will be great to start by an official support from Epic about the Lightmass GPU... I had a meeting with Epic (Engine tech director and Senior tech art relationship with studios) this week and when I asked about official support they told us it was not in the development plan since they're not supporting new features they don't use on their own games (Because they cannot support fixing issues if they're working everyday with). A little bit sad about that, even if Luoshuang is doing a great job it's complicated to integrate his tools on a pipeline on AAA production if there are no "official" support. But this tool is a time-game-changer, it's making the difference when you have long time about building lighting on dozens levels.

[Muchasty]

Luoshuang - still have some splotches. They appear very rarely. In this case I suppose that they could created by reflective material in the window.
If you would like to check I can send whole scene to you.
I use 4.20.x Unified Settings GPU Lightmass with Extreme Setup.

[The_Distiller]

It will be great to start by an official support from Epic about the Lightmass GPU... I had a meeting with Epic (Engine tech director and Senior tech art relationship with studios) this week and when I asked about official support they told us it was not in the development plan since they're not supporting new features they don't use on their own games (Because they cannot support fixing issues if they're working everyday with). A little bit sad about that, even if Luoshuang is doing a great job it's complicated to integrate his tools on a pipeline on AAA production if there are no "official" support. But this tool is a time-game-changer, it's making the difference when you have long time about building lighting on dozens levels.

Did they mention anything regarding the lightmass successor they're working on internally (non RTX) and also if RTX will be used to bake lightmaps in the future?

[zeldads]

Did they mention anything regarding the lightmass successor they're working on internally (non RTX) and also if RTX will be used to bake lightmaps in the future?

No plan for lighting in next version for now (projecting until 2.23/24), even if they are working on few things but nothing official for now... For RTX, I don't remember any comment apart obviously "forget for console" (we're doing console games so...). Obvious answer regarding actual hardware (consoles are always PC 3-4 ago...). There are very good things coming anyway outside of lighting subject, about rendering... It will start with 4.22 and should be finished few versions after. Waiting for official announcement to talk about it, very exciting things!