Assetto Corsa PC Mods General DiscussionPC

[RMi_wood]

any super secret tips and tricks to improve CPU performance?

I'm on a 9900K and the goal with this machine is a 20 car field with nu-CSP physics (which are not well optimized by nature, lol, but Ilja seems to be trying with this "hyperthreading fix"). I am due a new PC in ~2 years, and will get a 10800x3D - so hopefully triple digit framerates can be covered off there in the future.

In the meantime, I'm falling just short of that at the start of races - with starts in the high-80s and low 90s, and once rolled away have minor (~2 fps) stutters in battles with a few cars. Nothing crazy bad - but a GSYNC screen can really only cover off GPU-related drops, which I seem to be OK on, even at night. The CPU stutters are minor, but noticeable, and are just a bit annoying.

I have pretty much every CPU "optimization" in general settings checked, and limit smoke and sound. I also use Pure LCS, which from my understanding is worth a few FPS on the CPU side (and may get better, even). But past that, I can't really find anything.

I'm not looking for perfection, I'm just looking for a bit more CPU overhead and a few more FPS at starts so it's not so distracting. I figured I should ask if anyone knows any extra tips behind the hood that only minimally effect the experience.

Cheers.

in addition to the other suggestions, try running with VSYNC ON and or limit your frames to 60-61
Also, ExtraFX absolutely kills perf so you might want to turn that off, or limit to exterior only (as I do) if you drive in cpit
BTW, I have a i7-4770 (4th gen non K) with at 1080ti at 4k@60 and get decent performance

 

[X90]

@X90
Try to test with and without HT.
Overclock your i9-9900k to 5ghz and check temperatures during racing, my i9-9900KS is at 5,2Ghz and have lowered the Voltage .
Use software to divide CPU core for AC only/other processes, affinity/pior/forced shutdown. Process Lasso or Bill2 .
Guess you are on the CSP 2.8, maybe the whole version is crapy.
Try to get the knowledge what every adjustment is doing and not clearly see an improvement then lower/shutdown. Better to go hunting for the real ones as you need every droplet for a constant Frametime.
Some mods introduce strange fluctuations, mostly this behavior can be found in tracks/cars that are converted from other old racegames. Also some additional mods/apps can be interfering with CPU frame times.
Disable your Virusscan (as a test).
All those advices from guys that are using a super duper AMD9800X3D/RTX5090 are not helpful, read the advices from guys who are using low end systems.
Use the OSD tool from CM it give a lot of info on frame time behavior.

Here below a copy/paste from my old post here, old and more Vcard related, but still valid.

Here is my tip on this what’s the best adjustment, because there are so many different hardware it’s for everyone different. My adjustments on a old rig with VR, needs a complete different adjustment then a highend rig & 27” 4k monitor user. Then there is also your personal taste like achieving a stable FPS or in my case get rid of shimmering I do hate.

Read this: tweakguides and lots of info on the guru3D forums guru3D further from my favorites map at: https://stepmodifications.org/wiki/Guide:NVIDIA_Inspector
https://www.pcgamingwiki.com/wiki/Nvidia_Profile_Inspector
I know its about Nividia profile inspector but it’s also contain lots of general info. Because I still think you have to know what you are doing, what the effects are from all those adjustments and is it worth.

Determine what you dislike, as I hate graphical artifacts like shimmer and jaggies. So with the info I have, I’m trying all the specific adjustments on that aspects and see what the effects are.

My test object is btw your (=Racingjoe) ) improved SPA’66 and the Aston Martin Ulster (ACTK site).
I only doing a static test in the pit not a test drive. While in cockpit view I can see all kind of graphical defects that become better/worser, near and at the distance. The AM Ulster is btw a very good car to test as its louvres and front windshield frame are very prone to jaggies.
After finishing that I’m doing a race to check FPS using the CM statistics app.
If being satisfied store your CM pre-selection (video and CSP) settings and make printscreens of your Nvidia settings.

One important thing, if not seeing any improvements from a certain setting I disable this, why using if it only cost you precious FPS. So concentrate on the clear to see improvements setting and skip those maybe setting.

As being a non English speaking person it’s maybe a bit fuzzy writing, sorry for this.

Unfortunately I cheaped out on the motherboard (MSI Z390 Gaming Edge AC, midrange board) 6 years ago when buying the machine, so anything more than 5 GHz is off the table, and even that crashes under heavy load. 4.9 @ 1.295 is my rock-stable overclock/undervolt, and I can't really change that. Good temps under load, though.

I won't make that mistake next time. But unfortunately any tweaks to the hardware itself is impossible.

 

[Aldo Raine]

any super secret tips and tricks to improve CPU performance?

I'm on a 9900K and the goal with this machine is a 20 car field with nu-CSP physics (which are not well optimized by nature, lol, but Ilja seems to be trying with this "hyperthreading fix"). I am due a new PC in ~2 years, and will get a 10800x3D - so hopefully triple digit framerates can be covered off there in the future.

In the meantime, I'm falling just short of that at the start of races - with starts in the high-80s and low 90s, and once rolled away have minor (~2 fps) stutters in battles with a few cars. Nothing crazy bad - but a GSYNC screen can really only cover off GPU-related drops, which I seem to be OK on, even at night. The CPU stutters are minor, but noticeable, and are just a bit annoying.

I have pretty much every CPU "optimization" in general settings checked, and limit smoke and sound. I also use Pure LCS, which from my understanding is worth a few FPS on the CPU side (and may get better, even). But past that, I can't really find anything.

I'm not looking for perfection, I'm just looking for a bit more CPU overhead and a few more FPS at starts so it's not so distracting. I figured I should ask if anyone knows any extra tips behind the hood that only minimally effect the experience.

Cheers.


EDIT: Targeting 1440p 100 FPS lock, forgot to say.

Hi X90, I too am among those who have tinkered for months in search of the most stable frame rate possible, in the end I only managed to "improve", but not to completely solve, too many variables in play..
If it can be useful to you, I have not found particular advantages with the CSP settings, but only with Riva Tuner and Nvidia Nspector, setting the first to 120 hz and skyline sync to 30.
While for the second you have to tinker a bit with some settings, I set the vSync to "fast".
My config:
Ryzen 7 7800X3D
32 gb Ram
Rtx 3070 Ti

I can play with fairly high settings at 1440p, with a frame rate that varies between 90 and 120 fps, but without particular stuttering.
These are my settings if they can be of help to someone:
CSP 0.2.7 preview 1 ( 0.2.8 was giving me some problems)

Aldo Raine CSP settings Custom Shaders Patch settings

Supernova has shared Aldo Raine CSP settings Custom Shaders Patch settings

acstuff.club

 

[Perico Lospa]

... It's amazing how much I lost my pace and skills in 30 days. Even a circuit like Paul Ricard felt tough. I needed 1-2 races to get my pace back again.

Anyone else experienced this?...

30 days...? He! it happens to me from one day to the next... That, or is that when driving, I'm worse than a toothache... 😰

 

[maximeerkat]

2 BTCC Skins (Alfa 156 Cyril Cherry)

To install drag and drop in CM or do it manually to ensure proper installation 4k only with AO only (see updates for links to various small fixes)

www.gtplanet.net

info/pic's in the overview tab.

 

[FrustratedUse]

View attachment 1446730View attachment 1446731View attachment 1446732

Lost Prophet is probably the last band you want to advertise on a car these days lol

 

[G_Parrilla]

Imola 2024 faster AI

 

[MisterWaffles]

I just got a completely new PC and I've done a fresh install of Assetto Corsa. Content Manager, CSP, etc. and now I get crashes near-100% of the time when trying to load the game.

00007FFA8CB3441E (d3d11): (filename not available): CreateDirect3D11SurfaceFromDXGISurface
AC\cameramirror.cpp (49): CameraMirror::renderOpaque
AC\mirrortexturerenderer.cpp (118): MirrorTextureRenderer::render
AC\sim.cpp (2558): Sim::renderScene
AC\game.cpp (126): Game:nIdle
AC\game.cpp (210): Game::run
AC\acs.cpp (477): wWinMain
f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c (618): __tmainCRTStartup
00007FFA92D826AD (KERNEL32): (filename not available): BaseThreadInitThunk
00007FFA938EA9F8 (ntdll): (filename not available): RtlUserThreadStart

I reinstalled the base game and it keeps giving me the same error no matter what CSP settings I try, or which version I use.

From going from an old PC where the AI would always get stuck on the grid every race to a new PC where the game doesn't even start when I try running it, I'm about ready to throw in the towel and forget about AC. I want to play the game but some cars like the new RSS GT-M cars effectively lock you into needing CSP 2.7+ or else you can't play.

 

[CrisT86]

I just got a completely new PC and I've done a fresh install of Assetto Corsa. Content Manager, CSP, etc. and now I get crashes near-100% of the time when trying to load the game.

00007FFA8CB3441E (d3d11): (filename not available): CreateDirect3D11SurfaceFromDXGISurface
AC\cameramirror.cpp (49): CameraMirror::renderOpaque
AC\mirrortexturerenderer.cpp (118): MirrorTextureRenderer::render
AC\sim.cpp (2558): Sim::renderScene
AC\game.cpp (126): Game:nIdle
AC\game.cpp (210): Game::run
AC\acs.cpp (477): wWinMain
f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c (618): __tmainCRTStartup
00007FFA92D826AD (KERNEL32): (filename not available): BaseThreadInitThunk
00007FFA938EA9F8 (ntdll): (filename not available): RtlUserThreadStart

I reinstalled the base game and it keeps giving me the same error no matter what CSP settings I try, or which version I use.

From going from an old PC where the AI would always get stuck on the grid every race to a new PC where the game doesn't even start when I try running it, I'm about ready to throw in the towel and forget about AC. I want to play the game but some cars like the new RSS GT-M cars effectively lock you into needing CSP 2.7+ or else you can't play.

If you install via .bat the standard physic you can play without the latest CSP required. Of course you cut the CSP features out but is a solution. I honestly prefer the RSS way than the VRC one which have double cars and double skins which eats space in the SSD.

 

[Frank25]

I just got a completely new PC and I've done a fresh install of Assetto Corsa. Content Manager, CSP, etc. and now I get crashes near-100% of the time when trying to load the game.

00007FFA8CB3441E (d3d11): (filename not available): CreateDirect3D11SurfaceFromDXGISurface
AC\cameramirror.cpp (49): CameraMirror::renderOpaque
AC\mirrortexturerenderer.cpp (118): MirrorTextureRenderer::render
AC\sim.cpp (2558): Sim::renderScene
AC\game.cpp (126): Game:nIdle
AC\game.cpp (210): Game::run
AC\acs.cpp (477): wWinMain
f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c (618): __tmainCRTStartup
00007FFA92D826AD (KERNEL32): (filename not available): BaseThreadInitThunk
00007FFA938EA9F8 (ntdll): (filename not available): RtlUserThreadStart

I reinstalled the base game and it keeps giving me the same error no matter what CSP settings I try, or which version I use.

From going from an old PC where the AI would always get stuck on the grid every race to a new PC where the game doesn't even start when I try running it, I'm about ready to throw in the towel and forget about AC. I want to play the game but some cars like the new RSS GT-M cars effectively lock you into needing CSP 2.7+ or else you can't play.

After a fresh install of Assetto Corsa on a new PC, you must start the game once on steam without Content Manager, CSP, etc. Steam will then install some additional stuff you need to run the game. I had this problem last year when I moved AC to my new PC.

 

[24H]

anyone else who got that weird lights beside the tail lights and under the car?

default pure pp filter is activated

 

[Alx Hill]

anyone else who got that weird lights beside the tail lights and under the car?

default pure pp filter is activated
View attachment 1446908

Deactivate motion blurr effects?

 

[Fall Guy]

anyone else who got that weird lights beside the tail lights and under the car?

default pure pp filter is activated
View attachment 1446908

ExtraFX motion blur in all it´s glory.

 

[PedroBLR]

Lost Prophet is probably the last band you want to advertise on a car these days lol

the one ive sent is the LOSTPUPPET 240SX, from ProStreet

, there is NOT a single mention of ian watkins and LostProphets at all.

 

[Rodger Davies]

Imola 2024 faster AI

View attachment 1446876

Every time you post something modern, you make me want to install 20 modern cars to try it..... dangerous ground!

 

[racinjoe013]

Was harder than I thought it would be, but I kind of settled on one of these two versions for now. I looked through a lot of pics of Kyalami and the track seems to have a wide variety in how the terrain looks. I may end up trying to make one that looks really burnt out, but this will do for now. For me at least, it's better than the default look. You might not pick up on the difference, but on one of them, the grass is a little more red\yellow tinted.

Default:

New 1:

New 2:

 

[Vernonfs]

Was harder than I thought it would be, but I kind of settled on one of these two versions for now. I looked through a lot of pics of Kyalami and the track seems to have a wide variety in how the terrain looks. I may end up trying to make one that looks really burnt out, but this will do for now. For me at least, it's better than the default look. You might not pick up on the difference, but on one of them, the grass is a little more red\yellow tinted.

Default:


New 1:


New 2:

New 1 is nice!

 

[Shokeus]

 

[racinjoe013]

New 1 is nice!

Thanks. I still need to go back and fix some areas around the parking lots where my edits screwed up the edges and discolored them a bit. When I get that fixed, i'll post the skin here. If you feel like using it to change the track itself, be my guest.

 

[ninezeroniner]

Finally.

Fast AI for Toscana (Layout stradale )

Toscana fast AI for layout stradale. Track Link: https://www.overtake.gg/downloads/toscana.12659/ *If you have a track that you wished had better AI let me know! I generally recommend: leave the aggression at around 50% or lower. High...

www.overtake.gg

 

[RacingManiac]

Been driving a lot of cars on Kyalami(both new and the previous 2016 version) so good to see more work being done on it...

Tried this car, F302/RMS reworked CA06, the driver seems to be positioned weird(a bit high?) and also the arms sticks out, I am wondering if its not a scaling thing also....Other than that the car is actually pretty fun to drive and mostly to look at too...

 

[Perico Lospa]

Finally.

Fast AI for Toscana (Layout stradale )

Toscana fast AI for layout stradale. Track Link: https://www.overtake.gg/downloads/toscana.12659/ *If you have a track that you wished had better AI let me know! I generally recommend: leave the aggression at around 50% or lower. High...

www.overtake.gg

Your post has made me aware of this track, which I had no idea about... Thanks, buddy! 😄

 

[X90]

Finally.

Fast AI for Toscana (Layout stradale )

Toscana fast AI for layout stradale. Track Link: https://www.overtake.gg/downloads/toscana.12659/ *If you have a track that you wished had better AI let me know! I generally recommend: leave the aggression at around 50% or lower. High...

www.overtake.gg

/raises the Genoatrack Uno/Reboot Team Bat-Signal...

would love a proper update to this one, been years since I drove it last. I'll give it a try again this week.

Cheers @IMEAN as always

 

[Lukeey95]

 

[ninezeroniner]

/raises the Genoatrack Uno/Reboot Team Bat-Signal...

would love a proper update to this one, been years since I drove it last. I'll give it a try again this week.

Cheers @IMEAN as always

Great, on my radar too.

imho Toscana deserves few more cams/camtools too, if there is anyone listening.

 

[Alx Hill]

Hi all!

Remember the stuttering issues in the beginning of the first lap in a session (race, practice or hotlap)?
I think i've found a workaround solution.
Start the session & before you start moving the car, just glance left, right & backwards.
Those 2-3 stutters (which usually follow) are gone.
Maybe a bug with CSP Neck FX?
Anyway it might help someone!

Have a nice day/night.

 

[IMEAN]

I am open for doing more AI lanes - send requests

 

[caanglin]

Hi all!

Remember the stuttering issues in the beginning of the first lap in a session (race, practice or hotlap)?
I think i've found a workaround solution.
Start the session & before you start moving the car, just glance left, right & backwards.
Those 2-3 stutters (which usually follow) are gone.
Maybe a bug with CSP Neck FX?
Anyway it might help someone!

Have a nice day/night.

I get the stutters and don't use neck fx.

 

[racinjoe013]

Grass skins for @Vernonfs Kyalami GP Circuit which you can get HERE . It's unfinished, but good enough for people who might be interested in giving it a try.

If you want to give this a try, make a copy of the track's existing ext_config file. I added some entries at the bottom which will make a mess of the default grass if you decide to go back to it.

I tried to match the default grass brightness with my skins. If you find the grass to be too light or dark, go the the Additional Stuff section at the bottom of the ext_config file and play around with the Ambient and Diffuse values for the grass\top SHADER_REPLACEMENT secton.

There is also an optional folder in the download that will replace one of the track's kn5 files. I kept getting a missing texture error when loading the track so I had to fix the problematic kn5 file. If you don't have this problem, just skip extracting what's in the 'optional' folder.

vv_kyalami_grass_skins

As usual I can't make it simple because I love having the option to change how the track looks. You will always want to keep the 'Grass (Keep Enabled)' skin enabled. Then enable one of the other skins to get the type of grass look you prefer.

Patchier (best matches the default grass):

Patchy:

Semi Patchy:

Lush:

 

[Piresdiogo]

I am open for doing more AI lanes - send requests

Hello

Hope RaceTrack by Lemax
Collisions on first clamp
I tried change values in ai.hints, but, not
Tks