DLSS is not working.

Development Rendering
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1

Hello, i just switched to UE 5.1 and i have a little problem DLSS is not working anymore in viewport or playmode. I have no any performance boost (exactly same fps), the only thing that is working is sharpening.
I downloaded last version of DLSS plugin and have checkboxes for viewport cheked.

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This is what i got in my console.
Thanks!

LogDLSSNGXRHI: Creating NGX DLSS Feature SrcRect=[0x0->1466x603], DestRect=[0x0->1466x603], ScaleX=1.000000, ScaleY=1.000000, NGXPerfQuality=MaxQuality(2), bHighResolutionMotionVectors=1, bNonZeroSharpness=0, bUseAutoExposure=1, bReleaseMemoryOnDelete=1, GPUNode=0, GPUVisibility=0x1
LogDLSSNGXRHI: Destroying NGX DLSS Feature SrcRect=[0x0->1466x596], DestRect=[0x0->1466x596], ScaleX=1.000000, ScaleY=1.000000, NGXPerfQuality=MaxQuality(2), bHighResolutionMotionVectors=1, bNonZeroSharpness=0, bUseAutoExposure=1, bReleaseMemoryOnDelete=1, GPUNode=0, GPUVisibility=0x1
LogDLSSNGXRHI: Destroying NGX DLSS Feature SrcRect=[0x0->1466x610], DestRect=[0x0->1466x610], ScaleX=1.000000, ScaleY=1.000000, NGXPerfQuality=MaxQuality(2), bHighResolutionMotionVectors=1, bNonZeroSharpness=0, bUseAutoExposure=1, bReleaseMemoryOnDelete=1, GPUNode=0, GPUVisibility=0x1

2 Likes
2

I have the same problem. Tried all possible console commands, but no luck. DLSS has absolutely no impact on performance in viewports.

2 Likes
3

still as reported

4

Same here

5

snap… tool no workie

6

Maybe you need to disable TSR?

7

Have any of you guys got this working? I am seeing no fps increase at all. Its changing the r.screenpercentage but still nothing.

8

Yeah DLSS doesn’t work after nvidia changed it to use console commands all it does is change the screenpercentage and makes your game look crappy lol.

1 Like
9

It does seem that way. Lots of people not getting it to work at the moment. We cant all be doing it wrong can we. I suppose I will leave it for a while and do something else. If anyone out there is getting an fps increase please do tell us.

10

have you try enable through “execute console command” blueprint node with " r.NGX.DLSS.Enable 1 " ? I think the included dlss bp nodes from the dlss plugin are broken, I only managed to get dlss working through console command.

11

Thanks I will give that a go. Hope that works!

12

Hello,I have the same problem with LogMessage: LogEngine: Display: r.ScreenPercentage=33.299999 is ignored because overriden by editor settings (r.Editor.Viewport.OverridePIEScreenPercentage). Change this behavior in Edit → Editor Preferences → Performance
r.ScreenPercentage = “33.3”.
So I use “execute console command” blueprint node with “r.Editor.Viewport.OverridePIEScreenPercentage 0” to solve it,then dlss works

1 Like
13

I have opened up the sample project for DLSS 5.1 and that works as expected. In my project I am using the exactly the same widget as included in the sample project to control dlss but its not creating the same messages in the log when i change dlss settings. so its not changing the fps at all only the screen percentage. These are the output log messages i am missing. Has anyone got these messages when changing dlss settings?

LogBlueprintUserMessages: [BPW_NGX_C_0] Ultra Performance
Cmd: r.ScreenPercentage 33.299999
r.ScreenPercentage = “33.3”
LogDLSSNGX: [Core]: [2023-10-01 13:34:44] [NVSDK_NGX_CreateFeature_Validate:450] app id is 195018064
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (DLAA) Using App hint Preset F
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (Quality) Using App hint Preset D
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (Balanced) Using App hint Preset D
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (Perf) Using App hint Preset D
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (Ultra) Using App hint Preset F
LogDLSSNGX: [DLSS]: [2023-10-01 13:34:44] [tid:12452][NgxDltss::FillCreationParams::<lambda_13f9d8358092234f880ebe5aeaf5fb19>::operator ():2606] Info: (UltraQuality) Using App hint Preset F
LogDLSSNGXRHI: Creating NGX DLSS Feature SrcRect=[0x0->1022x412], DestRect=[0x0->3068x1236], ScaleX=0.333116, ScaleY=0.333333, NGXDLSSPreset=Default(0), NGXPerfQuality=UltraPerformance(3), bHighResolutionMotionVectors=1, bNonZeroSharpness=0, bUseAutoExposure=1, bReleaseMemoryOnDelete=1, GPUNode=0, GPUVisibility=0x1, DenoiseMode=Off
LogDLSSNGXRHI: Destroying NGX DLSS Feature SrcRect=[0x0->3068x1236], DestRect=[0x0->3068x1236], ScaleX=1.000000, ScaleY=1.000000, NGXDLSSPreset=Default(0), NGXPerfQuality=DLAA(5), bHighResolutionMotionVectors=1, bNonZeroSharpness=0, bUseAutoExposure=1, bReleaseMemoryOnDelete=1, GPUNode=0, GPUVisibility=0x1, DenoiseMode=Off