I was excited with the Mobile Support for GPU lightmass Noise. But it has problems, Don’t know if posting pics here is allowed, if not just delete. I tried enabling and disabling {Enable Virtual texture Mobile Support} and didnt fix the problem. At least I can make aware of this issue for possible preview 4 fix. CPU is the top and GPU is the bottom. Textures are weird…
GPU Lightmass does not require Virtual Texturing to work, it just needs it to display the in-editor real-time preview. You can try disabing VT completely and let GPULM bake normal lightmaps and see if anything changes.
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Yup… that was it! Disabled it and now it 100% correct! Awesome!
Am I the only one having problem with distance field shadows? They don’t work anymore on 4.27
What if I need to have VTs in my mobile project? (for both textures and lightmaps; either streamed or RVT)
Is there some way to come back from preview 3 to preview 2 after installing the version 3? Using Epic Launcher.
Can you please confirm that if one wants to use GPU Lightmass to bake lighting, one can’t use VTs ?
@VictorLerp @Amanda.Schade Unreal Engine Issues and Bug Tracker (UE-113395) doesn’t seem to be fixed in 4.27p3 
Pretty much comfirmed in my end. With VT on, I get that weird texture issue like my pic. I tried ticking on and off all the VT options in combinations and the only one that worked and fixed my issue is ticking VT totally off.
Only way I know is to uninstall it completely and start over. But maybe someone else knows.
By the way. Am I the ONLY one experiencing the “gpu crashed or d3d device removed ue4” error? I am getting it very frequently after 4.27 preview 3 install and got worse after ticking off VT for Android mobile support. I"ve done the TdrLevel registry and updated my Nvidia drivers. Still giving the error. Also… reading around I"ve read to set the TdrLevel from 0 to 10 to 60. Which one is it?
Oh boy! according to this video Unreal 4 d3d device removed
Turning off VT might be my issue.
Update: Turned VT on again and its still doing it. Will dig further.
Update 2: Opened my 4.26 original file and used it for over 1 hour. No crash. I think 4.27 Preview 3 might be my cause.
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Thanks. That’s just another confirmation that we are simply test subjects and GPU Lightmass was never meant to be production ready (and by that I mean on par with CPU Lightmass for every supported platform). What a shame. Unity gets another plus from me in GPU Lightmaps baking department.
P.S. I don’t want to hear anything about UE5 because 1. it isn’t coming until 2022, 2. won’t be production ready for Android / VR upon release
Oh yeah… this not ready for production. But its progress. Ive never used unity. Probably never will since Lumen is pretty impressive with nanite. This might be the future but we never know.
Expo Fog - I seem to have lost the ability to change the color and density. It is either on or off. - The fog is working in a test project but something broke in my own. Not sure yet what is causing it to either be on or off and not accepting color values.
Speedtree importer was just purchased by Unity - Is this going to go away?
After turning off plugins not required by the project I am getting this error when cooking the project content.
[2021.07.30-00.27.11:456][672]PackagingResults: Warning: ModuleManager: Unable to load module ‘TextureFormatOodle’ - 0 instances of that module name found.
When I add custom variable to remote control preset on windows, the web app perform well, but on ubuntu 18.04, it will cause segmentfault with the error “Signal 11 caught. Malloc Size=65538 LargeMemoryPoolOffset=65554”
Hi, anyone knows anything about lens distortion documentation or tutorial?
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WindowsMixedReality remoting to HL2 is extremely jittery in Preview 3, it was rock solid in Preview 2.
I have used Pixel Stream under 4.27 on ubuntu 18.04 and centos 7, both of them has the same problem that when I play a webm with sound, the audio sounds about a second faster than the video. I don’t know if there are some settings can synchronize video and audio
Man… this release is killing me. I’m using gpulightmass since it works with mobile denoiser. But I’m getting endless “GPU 3d had been disconnected” error. Sometimes just touching a material to apply it to something will crash it. Anyone else playing with gpulightmass on this release?
Update: Opened the original scene in 4.26 and got GPULightmass activated. Been using it for over 2 hour and no crash. If this was 4.27 preview 3… I would have gotten a minimum of 4 crashes within the hour. Definitely its this version. I did send the logs on the auto bug send window. Hpefully it get fixed.
Update 2: Not one single [3dgpu has been removed] crash after using 4.26 for 3 hours. preview 3 has a issue.
x3950
rtx2070
64gigs
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Anyone been able to work with GpuLightmass on Preview 3? Crashes all the time for me. Maybe someone can suggest changing some settings…
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