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I got my FPS back!

Giovaneveterano

1000RPM
Feb 17, 2013
1,764
754
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
 

JoelGL

1000RPM
Oct 16, 2013
1,376
124
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.
 
Last edited:
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Oct 31, 2009
156
29
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

1RPM
Jun 9, 2019
3
0
48
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

75RPM
May 11, 2016
95
21
33
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

500RPM
Jan 7, 2017
742
575
44
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).
 
Mar 1, 2016
71
41
38
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

500RPM
Oct 15, 2010
512
339
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

1000RPM
Feb 17, 2013
1,764
754
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DrRob

500RPM
Jan 7, 2017
742
575
44
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

1000RPM
Feb 17, 2013
1,764
754
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

500RPM
Jan 7, 2017
742
575
44
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

1000RPM
Nov 1, 2015
1,163
563
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
 

thepharcyde

1000RPM
Nov 1, 2015
1,163
563
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

500RPM
Jan 7, 2017
742
575
44
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. :p;)
 

thepharcyde

1000RPM
Nov 1, 2015
1,163
563
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. :p;)
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?
 
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