Assetto Corsa PC Mods General DiscussionPC 

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StoffelWaffle
I've had FPS drops when driving in cockpit view in some cars (like the Citroen DS from GT7 by Yuki), wonder what would even cause that lmao
Click to expand...
as mentioned in the original post the fps drops were not because of high triangles count , which is obviously the case for that DS.

Turns out faulty SFX (older sound bank no longer compatible w new FMOD !) was the culprit.
In the error log I saw errors "FMOD_ERR_INVALID_HANDLE".

Audio FMOD call error (AudioEngine.cpp:254): An API call returned FMOD_ERR_EVENT_NOTFOUND
Audio FMOD call error (AudioEngine.cpp:255): An API call returned FMOD_ERR_INVALID_HANDLE
Audio FMOD call error (AudioEngine.cpp:256): An API call returned FMOD_ERR_INVALID_HANDLE

in Documents\Assetto Corsa\logs\log.txt

So my workaround was to replace the old sfx bank...
But I guess it will happen more that we have older mods which do not play well with the newer version of FMOD and cause errors like that.
So modders may wanna know how to really fix it to keep their sfx bank, without getting FMOD errors.
( This is beyond my capability to find out, but surely some sound gurus here will be able to figure it out if they want to.)

Also the Chevrolet Chevelle Recoil by Ringbrothers suffers the same (and I am fearfull alot more mods)

Would be good if CM Analyze would be able to detect (and fix) these :bowdown:
 
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2026 Michelin Pilot Challenge​

2026 Auto Technic Racing #25 #27
Skin for the GUERILLA mod

Download
1.webp

preview.webp
 
jac0
as mentioned in the original post the fps drops were not because of high triangles count , which is obviously the case for that DS.

Turns out faulty SFX (older sound bank no longer compatible w new FMOD !) was the culprit.
In the error log I saw errors "FMOD_ERR_INVALID_HANDLE".
So my workaround was to replace the old sfx bank...
But I guess it will happen more that we have older mods which do not play well with the newer version of FMOD and cause errors like that.
So modders may wanna know how to really fix it to keep their sfx bank, without getting FMOD errors.
( This is beyond my capability to find out, but surely some sound gurus here will be able to figure it out if they want to.)

For full disclosure, I had tweaked my audio settings to the limit for max low audio latency. Also I had some audio related processes (audiodg.exe) set to single cpu affinity with Process Lasso to cause less microstutter in VR.
Because of these factors the FMOD errors were probably causing me more frame time issues then anyone without these tweaks.
Click to expand...
Just saw at Overtake there also talking about FMOD errors, think if a young member that’s good in all those modern AI, Reddit or Discord, can search for the right solution.

Sound issues with AC on PC

。。。
www.overtake.gg www.overtake.gg
 
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racealot
Try the following... Once in 'Showroom' mode, click & hold right-mouse-button... This combination enables to auto-rotate around the car in an anti-clockwise direction.

If you click+hold the left-mouse-button, you can manually drag the mouse to rotate around the car (in any direction).
Click to expand...
I was mainly asking for Content Manager showroom, bu thanks. I wanted to view CM showroom in fullscreen because that has the showroom bgs I want to use.
 
I installed my version of CSP 0.2.11 free version, but I no longer have rain with Pure.

I think the rain feature is included with the Patreon version?

I don't mind having the paid version, but the preview version of CSP 0.2.11 is build 3460. The problem is that with this version, I can't use the Alfa Romeo 156 from VRC. It requires CSP 0.2.11, but build 3465. Is there a paid version of CSP with build 3460?

If not, how can I get rain in the free version of CSP but with Pure, not Sol?
Thanks

Can anyone help me?
 
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sml44
I installed my version of CSP 0.2.11 free version, but I no longer have rain with Pure.

I think the rain feature is included with the Patreon version?

I don't mind having the paid version, but the preview version of CSP 0.2.11 is build 3460. The problem is that with this version, I can't use the Alfa Romeo 156 from VRC. It requires CSP 0.2.11, but build 3465. Is there a paid version of CSP with build 3460?

If not, how can I get rain in the free version of CSP but with Pure, not Sol?
Thanks

Can anyone help me?
Click to expand...
Sol or Pure have nothing to do with rain. Rain comes always and only with a CSP preview version.
CSP free like 0.2.11 = CSP without rain.
So the preview version of 0.2.11 is 0.2.12p1 (the p stand for preview). You get those preview from Ilja Jusupovs Patreon.
For Sol or Pure it does not matter what version of CSP you use. You just need CSP 0.2.3 or later...
 
Screenshot 2026-02-13 192752.webp

Hi, I need your help. The dashboard lighting is too bright. How can I fix it? My car is a Nissan Silvia Spec-R Aero from Jugge8.I'm using Pure LCS.
 
racinjoe013
Sorry about this, but some necessary small fixes for problems I found when shrinking the carpet kerbs in the Lesmo turns. Use the link in the quote or the mega link below. Just unziip and overwrite when it asks.

Alternative Mega link: rj_monza

-- Fixed holes in the physical mesh in the Lesmo and Ascari areas.
-- Corrected some misaligned vertices that created a gap between visible meshes.
-- Lowered the grass\sand blend mesh in some parts to eliminate a floating look.
-- Reduced the width of the carpet kerbs in the Lesmo turns.
Click to expand...
Discovered a little problem while I was expanding the sand pit around Parabolica. Apparently there is a sand\asphalt blend mesh I never knew existed that doesn't show because of incorrect shader settings. Replace the ext_config file with the attached one. It's not a perfect fix, but it will do for now. I will fix it correctly in the kn5 file for the next update. If you customized the ext_config file and don't want to have to redo your changes, just copy and paste this code into your existing config file.

[SHADER_REPLACEMENT_...]
ACTIVE = 1
MATERIALS = brd2
BLEND_MODE = ALPHA_TEST
DEPTH_MODE = NORMAL
 

Attachments

What setting in csp do I need to uncheck to stop having blocky looking shadows (I'm not talking about what someone posted above), I'm talking about the shadow having almost like a 8bit/16bit shading on the tarmac.
 
MARKDENNY
Still the same no difference 😡 any other ideas ?
Click to expand...
1. Disable the alternative skin and then re-enable it. This loads the skin again properly into the track.

2. If it does not fix it, please try my CSP settings (backup yours before, so you can revert).

acstuff.club

FallGuy Custom Shaders Patch settings

A Content Manager user has shared FallGuy Custom Shaders Patch settings
acstuff.club acstuff.club

If it does not help, I am out of ideas.
 
Hi all,

I've been absent from the AC community for a while so I hope you don't mind me leaping back in with a question.

I've noticed some strange behavior with starts on Le Mans 1970 by KJRacing81/nobody. Start behavior varies according to CSP version and New AI behaviour options. A similar pattern is seen on other tracks with Le Mans-style starts.

Here's a pictorial summary:
CSP_Le_Mans_1970_start.webp


CSP 0.2.10 or later results in either a slow processional start down the pit lane or mass carnage and aeroplane crashes, depending on whether the "Straighten AIs trajectory when starting" option is selected. Even with "New AI behavior" completely disabled, I still get that processional start. CSP 0.2.9 or earlier works fine, as long as the "Straighten AIs trajectory when starting" option is turned off.

Has anyone else experienced this, and is there maybe a fix? Thanks for any advice.
 
Peter Boese
Sol or Pure have nothing to do with rain. Rain comes always and only with a CSP preview version.
CSP free like 0.2.11 = CSP without rain.
So the preview version of 0.2.11 is 0.2.12p1 (the p stand for preview). You get those preview from Ilja Jusupovs Patreon.
For Sol or Pure it does not matter what version of CSP you use. You just need CSP 0.2.3 or later...
Click to expand...
I understand, but my Pure works very well, but only in the rain, since I have the free version. As I explained, I can't get the paid version because of the Alfa Romeo VRC.

Yes, version 0.2.12, but is it as stable as the recommended version, 0.2.11?
 
Hello, it is possible with a lua script to hide some meshes of the car when it detects there is damage on a specific part of the car ? (front and rear bumpers, suspensions) to do for example a broken front wing for an open-wheeler. Thanks
 
I could use some help from someone familiar with what Monza looks like currently. I'm working on the sand placement for Parabolica using a Google Maps overhead image. I think the map is from the 2022 or 2023 F1 race. From what I can see, the sand is right up against the kerb coming out of Parabolica but is not cut so close in the entry and middle of the turn. Something like the image.

acs 2026-02-13 22-15-28.webp


Is that correct? Seems odd to have the sand so close coming out but leave such a wide area of asphalt in the beginning and middle sections. I just want to make sure that hasn't been changed recently. Thanks for any help...
 
sml44
I understand, but my Pure works very well, but only in the rain, since I have the free version. As I explained, I can't get the paid version because of the Alfa Romeo VRC.

Yes, version 0.2.12, but is it as stable as the recommended version, 0.2.11?
Click to expand...
I don't think you understand!
CSP 0.2.12p1 is actually 0.2.11 + rain

The public versions and the corresponding "p1" versions are actually equal, BUT the p1 versions have also the preview features activated, like "rainFX".

0.2.7p1 = 0.2.6 + rain
0.2.8p1 = 0.2.7 + rain
0.2.9p1 = 0.2.8 + rain
0.2.10p1 = 0.2.9 + rain
0.2.11p1 = 0.2.10 + rain
0.2.12p1 = 0.2.11 + rain
and in the future there will be a CSP 0.3.0 version and guess how the preview version would be called then?
0.3.1p1 = 0.3.0 + rain

But currently there are only 0.3.xxx preview versions available. There are many developments right now.
 
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racinjoe013
I could use some help from someone familiar with what Monza looks like currently. I'm working on the sand placement for Parabolica using a Google Maps overhead image. I think the map is from the 2022 or 2023 F1 race. From what I can see, the sand is right up against the kerb coming out of Parabolica but is not cut so close in the entry and middle of the turn. Something like the image.

View attachment 1513102

Is that correct? Seems odd to have the sand so close coming out but leave such a wide area of asphalt in the beginning and middle sections. I just want to make sure that hasn't been changed recently. Thanks for any help...
Click to expand...
I would say that makes sense. It allows for party time mid corner with overtakes allowed, and then making sure all the boys are back in their barracks come corner exit time, thus avoiding many a car crash.
 
racinjoe013
I could use some help from someone familiar with what Monza looks like currently. I'm working on the sand placement for Parabolica using a Google Maps overhead image. I think the map is from the 2022 or 2023 F1 race. From what I can see, the sand is right up against the kerb coming out of Parabolica but is not cut so close in the entry and middle of the turn. Something like the image.

View attachment 1513102

Is that correct? Seems odd to have the sand so close coming out but leave such a wide area of asphalt in the beginning and middle sections. I just want to make sure that hasn't been changed recently. Thanks for any help...
Click to expand...
Ciao Joe! Try here, there are many videos of tests they did in Monza in January/February. 😉

www.youtube.com

sportcrash71

Hello everyone I'm sportcrash71, an Italian guy with a big passion for motorsport In 2015 I opened this channel and from 2017 I started to upload only video self-made with all the stuff I recorded all across the world My camrecorder is a Canon Legria HF G40 with a Canon DM100 microphone, and I...
www.youtube.com www.youtube.com
 
Arthur Figgis
Hi all,

I've been absent from the AC community for a while so I hope you don't mind me leaping back in with a question.

I've noticed some strange behavior with starts on Le Mans 1970 by KJRacing81/nobody. Start behavior varies according to CSP version and New AI behaviour options. A similar pattern is seen on other tracks with Le Mans-style starts.

Here's a pictorial summary:
View attachment 1513076

CSP 0.2.10 or later results in either a slow processional start down the pit lane or mass carnage and aeroplane crashes, depending on whether the "Straighten AIs trajectory when starting" option is selected. Even with "New AI behavior" completely disabled, I still get that processional start. CSP 0.2.9 or earlier works fine, as long as the "Straighten AIs trajectory when starting" option is turned off.

Has anyone else experienced this, and is there maybe a fix? Thanks for any advice.
Click to expand...
Haven't tried this particular track with CSP 0.3.x yet but I have the same problem with le_grand_circuit_1967 using CSP 0.3.0-preview212. No idea how to fix it.
 
Necroing about safety from a couple of post ago! Here something about safety copy/paste, from X4fab Patreonsite, how small it looks who knows it can be helpfully:

Sadly, it looks like we’re starting to see some bad-faith modders in the community. So, I thought I’d make a small post with a few recommendations, and work on making CSP a bit safer.

First of all, please keep an eye on the type of content you’re installing, and if you’re not using Content Manager to install a mod (or if it’s being installed as a generic mod), glance through the files to see what actually is being added. If it’s something like a new car, or something else contained within the “content” folder, it’s perfectly safe. But if a mod adds anything to “apps”, “extension”, “launcher”, “plugins”, “server” or “system”, or if it includes any DLL (or EXE for you to run), such a mod can, potentially, do anything it wants on your system, so please check those mods thoroughly. Especially if it’s a stolen mod: those are sometimes repacked by third parties, so some of the files might be edited.

With the original Assetto Corsa, there are plenty of ways a mod could add its own logic. Apart from obvious stuff like including its own version of Reshade DLL or adding a new Python app, they could also alter launcher logic, add a new AC plugin, adjust one of JS files loaded by the original launcher, swap Python libraries (either standard or AC ones). And, to be clear, the original Python apps of Assetto Corsa can do anything they want. If anything, they can do a whole lot more compared to Lua apps, but those also have pretty much no limits. And when it comes to this type of thing, if a script can as much as simply save a file somewhere within the Assetto Corsa folder, that’s already more than enough to compromise data files.

Now, Custom Shaders Patch adds a lot of other types of scripts for all sorts of tasks. Ever since adding script support to Content Manager (which allowed us to have much nicer, if static, weather conditions back in the day), I was always fascinated by how much flexibility can be achieved with a simple Lua script. But, the way the whole thing is currently set, those scripts aren’t a weaker alternative to Lua apps. If anything, Lua apps are the weak ones, with delayed loading, and sometimes loading skipped altogether. A specialized script — such as Pure (a great WeatherFX style by Peter Boese) — loads first, and has full access to your file system and other processes! So, all the scripts you’re installing explicitly (with CM warning you about potential dangers), and going to CSP settings to enable explicitly — including post-processing scripts, GamepadFX scripts and more — all can do pretty much anything. That’s how Pure can edit configs and load extensions, how Curved Monitor filter can export settings, it allows for Mobile GamepadFX script to exchange data with the phone, or for Wooting keyboard script to read analog values from those keyboards. It also allows for traffic mode to load missing assets, and more.

There are only three exceptions: car scripts (both regular and physics), track scripts and, of course, online scripts. Those are the scripts you might not be aware of installing, and they are fully sandboxed and can’t really do anything like saving files.

In the next update, I’ll add something for CSP to ask each time before starting a new script with full files access, and something for scripts to opt-out of that access. But even with that addition, I ask you to still be cautious — a malicious mod could always find a way to circumvent some of these protections, like replacing a config of another mod changing its behavior in a potentially threatening way. Using Content Manager to install mods and keeping an eye on its warnings should be enough though.

For extra safety, I’m also going to add some settings for blocking out scripts entirely, and maybe something that would prevent sandboxed scripts from accessing the internet (although, that might break some things like Android Auto or online scripts).

If it is illegal to post this, let me know then I will delete it! Please moderators do not ban me, think it's safety first?
 
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