I got my FPS back!

[Giovaneveterano]

Short story: ACC used to run crappy on my senior PC, now it doesn't. I'm not gonna explain a thing because it's all well written here in plain english: https://docs.unrealengine.com/en-US/Engine/Performance/Scalability/ScalabilityReference/index.html

You need to see hidden folders for this path:
C:\Users\USERNAME\AppData\Local\AC2\Saved\Config\WindowsNoEditor\Engine.ini

Copy and paste this in the very bottom, thanks for the beer.

[ConsoleVariables] r.AmbientOcclusionLevels=1 r.DistanceFieldAO=0 r.HZBOcclusion=0 r.LensFlareQuality=0 r.SceneColorFringeQuality=0 r.DepthOfFieldQuality=0 r.SSR=0 r.TranslucencyLightingVolumeDim=24 r.DetailMode=0 r.Shadow.CSM.MaxCascades=1 r.AllowLandscapeShadows=0 r.DistanceFieldShadowing=0

Spoiler: BENCHMARK COMPARISON

1 lap at MISANO, SUNSET

DEFAULT: Avg: 56.9 - Min: 43 - Max: 70
MODDED: Avg: 62.3 - Min: 46 - Max: 78
FPS Diff.: Avg: +5.4 - Min: +3 - Max: +8

Thanks @2stains for the AO suggestion.

 

[DrRob]

Cheers, worked well for me abd cold claw a few fps back! Less stutter also.

 

[JoelGL]

Short story: ACC used to run crappy on my senior PC, now it doesn't. I'm not gonna explain a thing because it's all well written here in plain english: https://docs.unrealengine.com/en-US/Engine/Performance/Scalability/ScalabilityReference/index.html

You need to see hidden folders for this path:
C:\Users\USERNAME\AppData\Local\AC2\Saved\Config\WindowsNoEditor\Engine.ini

Copy and paste this in the very bottom, thanks for the beer.

[ConsoleVariables]
r.BlurGBuffer=0
r.AmbientOcclusionLevels=0
r.AOquality=0
r.DistanceFieldAO=0
r.HZBOcclusion=0
r.LensFlareQuality=0
r.SceneColorFringeQuality=0
r.DepthOfFieldQuality=0
r.SSR.Quality=0
r.SSR.MaxRoughness=0.1
r.VolumetricFog=0
r.Fog=0
r.DetailMode=0
r.TranslucencyVolumeBlur=0
r.TranslucencyLightingVolumeDim=24
r.RefractionQuality=0
r.TemporalAACurrentFrameWeight=0.1
r.TemporalAASamples=4
r.TemporalAASharpness=0.8
r.Tonemapper.Sharpen=2
FX.FreezeParticleSimulation=1
R.DFshadowquality=1
r.Shadow.CSM.MaxCascades=4
r.Shadow.MaxResolution=512
r.Shadow.RadiusThreshold=0.06
r.Shadow.DistanceScale=1.0
r.Shadow.CSM.TransitionScale=1.0
r.AllowLandscapeShadows=0
r.DistanceFieldShadowing=0

[/script/engine.renderersettings]
a.URO.ForceInterpolation=1
a.URO.ForceAnimRate=2
r.OptimizeForUAVPerformance=1
r.UseShaderCaching=1
r.UseShaderPredraw=1
r.Streaming.FullyLoadUsedTextures=1
r.Streaming.FramesForFullUpdate=1
r.bForceCPUAccessToGPUSkinVerts=True
r.Streaming.DefragDynamicBounds=1
r.Streaming.HLODStrategy=2
r.Streaming.Boost=0
r.Streaming.PoolSize=0
r.Streaming.LimitPoolSizeToVRAM=1

With what in-game settings? What CPU/GPU do you have? Similar to X_Racer01's post in ACC, except for the ConsoleVariables.

 

[ThugUK]

Will this work ok in VR (Rift) too?

 

[magzire86]

Will this work ok in VR (Rift) too?

Try R.DFshadowquality=0 instead of 1 along with the rest of the commands.
Turns off shadows completely and looks way better in VR, less flickering and more fps.

 

[Patricio Quevedo]

Do you know if the game will work with these specs?
Intel I5 CPU 650@3.20 GHz- memory ram 16gb.
Operating System: Windows 10 Home, 64-bit
DirectX version: 12.0
GPU processor: GeForce GTX 1050 Ti
CUDA Cores: 768
Core clock: 1354 MHz
Memory data rate: 7.01 Gbps
Memory interface: 128-bit
Memory bandwidth: 112.13 GB/s
Total available graphics memory: 12283 MB
Dedicated video memory: 4096 MB GDDR5
System video memory: 0 MB
Shared system memory: 8187 MB

 

[kingkabong]

Try R.DFshadowquality=0 instead of 1 along with the rest of the commands.
Turns off shadows completely and looks way better in VR, less flickering and more fps.

I think that parameter is a typo in the original message, it should be "r.ShadowQuality=0". At least I can't find any reference to DFshadowquality in the doc. For me, it didn't do anything until I made this correction.

 

[magzire86]

I think that parameter is a typo in the original message, it should be "r.ShadowQuality=0". At least I can't find any reference to DFshadowquality in the doc. For me, it didn't do anything until I made this correction.

That's correct, kept forgetting to mention that

 

[DrRob]

I think that parameter is a typo in the original message, it should be "r.ShadowQuality=0". At least I can't find any reference to DFshadowquality in the doc. For me, it didn't do anything until I made this correction.

Just as a note, the original post suggests setting it to "1" which gave me flashing shadows with terrible jaggies around them. Quite irritating, not recommended (Nvidia GTX1070).

 

[Swedish Racing Elite]

Do you know if the game will work with these specs?
Intel I5 CPU 650@3.20 GHz- memory ram 16gb.
Operating System: Windows 10 Home, 64-bit
DirectX version: 12.0
GPU processor: GeForce GTX 1050 Ti
CUDA Cores: 768
Core clock: 1354 MHz
Memory data rate: 7.01 Gbps
Memory interface: 128-bit
Memory bandwidth: 112.13 GB/s
Total available graphics memory: 12283 MB
Dedicated video memory: 4096 MB GDDR5
System video memory: 0 MB
Shared system memory: 8187 MB

Yes I have similar setup but a i7 and I have everything on medium runs great!
Locked the FPS on 60.

 

[Enagee]

not sure what kind of magic is going on or if it in my head but my system is running smooth after this with VR.... i72700k gtx980ti . even tried rain with A.I. granted am only running 15 A.I but still smooth. @Giovaneveterano can you amend your post "R.DFshadowquality=1"

 

[Giovaneveterano]

I think that parameter is a typo in the original message, it should be "r.ShadowQuality=0". At least I can't find any reference to DFshadowquality in the doc. For me, it didn't do anything until I made this correction.

From UE4 website: https://docs.unrealengine.com/en-US/Support/Builds/ReleaseNotes/4_20/index.html

"New: Added RTDF r.DFShadowQuality allowing to adjust for shadow performance or quality."

 

[DrRob]

One of the main ingredients of this "hack" is the simplification of shadows. In direct comparison you loose some of the graphic glory but are compensated by smooth, high fps. Thanks again for sharing @Giovaneveterano !

 

[Giovaneveterano]

Unfortunately I have no choice. But, who cares of the graphics, the game feels amazing!
My main problem at the moment is the CPU. Anyone knows if there is a way to slow down the refresh rate of the physics, at least for the AI? I literally can't play with more than 20 opponents.

 

[DrRob]

Had the same with my i5-6600k (limited to 15 AI).
Well, time for an upgrade and went i7-9700K. Now all good even with max. opponents on Spa.
No answer to your question I fear, sorry.

 

[thepharcyde]

Had the same with my i5-6600k (limited to 15 AI).
Well, time for an upgrade and went i7-9700K. Now all good even with max. opponents on Spa.
No answer to your question I fear, sorry.

What was your o/c. I can race with 24 AI @4.6

 

[DrRob]

What was your o/c. I can race with 24 AI @4.6

Just did a light OC to 4GHZ. The problem is the number of cores. You'll need at least 6 to run more/all AI.

 

[thepharcyde]

Just did a light OC to 4GHZ. The problem is the number of cores. You'll need at least 6 to run more/all AI.

Do you have source info backing this up; given the complexity of multi core programming, understood the core count would not be that high, rather a dependency on single core performance?

 

[DrRob]

Do you have source info backing this up; given the complexity of multi core programming, understood the core count would not be that high, rather a dependency on single core performance?

AI physics is calculated with the same complexity as for players in ACC. That is different from other Sims.
The info is out there. Too lazy to google tbh. You do not need to believe me.

 

[thepharcyde]

AI physics is calculated with the same complexity as for players in ACC. That is different from other Sims.
The info is out there. Too lazy to google tbh. You do not need to believe me.

Genuinely interested hence why I asked
9700k boosts to 4.9 unlocked (single core), ergo might be why you can run more AI, rather by virtual of the fact it has 8 cores?