is it ready for building ?
I LOVE you，thank you so much.
Hi! I’ve found this issue on the 4.25 gpu. There’s light bleading on the edges. that didn’t happen on 4.23
Wonder if it will work with upcoming AMD Big Navi cards too?
hi ldgi_,
i notice the same problem of wrong lighting with GPULM. UE ver. 4.25.3. GPULM ver. 4.25.1 (4.25.3 has the same issue).
I have try both with old bp sky and new sunsky no difference in my scene. Lower Hemisphere is solid color - unchecked. Default CPU Lightmass is ok.
Could you please send me exact this scene to test?
Hey guys, how do you get such smooth results from the gpulightmass? I always get noisy results. Are there some denoising options for the lightmaps?
1.World Settings / Compress Lightmaps unchecked.
2. BaseLightmass file - [DevOptions.GPULightmass]
NumPrimaryGISamples=128
NumSecondaryGISamples=64
3. Good UV in geometry and high Lightmap resolution.
That’s it!
virtual texture work but virtual lightmaps doesn’t work 4.25.3
Alright I’ll increase the settings then, thanks.
Hi ppl!
New in Unreal Engine here 
I have a Titan Z from 2014 (a good friend gave it to me a few months ago) and I’d like to know if I can use this with my graphic card or is not compatible with this plugin.
Thanks!
is there gpu lightmass that supports 4.25.3 ??
Yes, posted about 10 posts above yours:
https://forums.unrealengine.com/development-discussion/rendering/1460002--s-gpulightmass?p=1795900#post1795900
Hey guys, Im really getting into all this stuff. Already tried out version 4.26 (developer) with built in devrendering plugin (by Loushuang who works at epic now). Its great but not very stable for larger scenes so far.
Still I got some questions for this original Loushuang ‘plugin’ I couldnt totally answer myself: Are all the lightmass settings (world settings) available when using this ‘plugin’. Somewhere I read not all of them actually change something because of the changed baking process.
I lately got problems with splotchy indirect lighting. How often do you guys got problems with datasmith-generated lightmap UVs? Im still not sure if my problems are caused by my lighting settings or my lightmap UVs.
Im really thankful for all the information in this thread and hopeful version 4.26 to bring easier and better results for .
This is gpu lightmass from 4.25 but this settings. İf enable virtual texture lightmaps everything is yellow and black. I want to more lightmaps but 4.25 gpu lightmass is not support because this option.
Hi all, my GPU utilization is quite low averaging around 2%, and I
have already done this step… (Open Windows’ task manager, go to the “performance” tab, select your GPU than on the right select one of the small windows and choose “Cuda” in the dropdown menu)…please help
Excuse me,4.25.3GPUlightmass can I use unreal swarm ? Thanks !
pude correr el lighmass bajando el Cuda para una gtx 1050 ti, esta actualizacion es la que me salvo hasta ahora en septiembre del 2020…
Why when I try to bake the light I get such a result. I am using Unreal engine version 4.25.3 with Gpu lightmass. Please HELP GUYS!!!
Check if you don’t have a skybox mesh or something like that with cast shadows on. Even with an unlit material, that’ll block GPU lightmass indirect light. If you have one, set a lit material to it, deactivate Cast Shadows and set your sky material again.
If I understood this works only on Nvidia gpu-s? Since I wanted to try this on multiple Radeon RX570 cards is there a way to make that possible?