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lights-patch-v0.2.11-preview1-full.zip 128.0 MB
June 11, 2025

Red, green and blue

UPD: If you experience crashes without any error messages, check and disable NVIDIA overlay. Investigating and working on a fix right now, my apologies.

In that endless pursuit of the build worthy to be tagged “recommended”, I’m back once again with another bunch of fixes. But there are a couple of new things too! And while I was working on those, I ran into a bunch of other bugs, all have been fixed now though.

RGB Control

In the previous update, there was this line about OpenRGB integration, but, to be fair, it wasn’t functional at all. But I finally managed to get OpenRGB to work here, so I had to take a small detour and redo this thing properly. One thing led to another, and now OpenRGB integration has been removed from CSP and instead has been moved into a separate app on App Shelf called “RGB Control”. This way, it gets its own update cycle, and with all the new features, it might need it.

To use, start a race or a replay, install it, and it should handle the rest, including downloading and running OpenRGB (although there is an option for it to use your version too). Once ready, it should show you the list of all the available devices and allow you to assign different behaviors to different sections. There are a lot of different things to choose from, including conditions allowing to create custom logic as well. And after that, you can use RGB Exchange (within the app) to share presets too.

A bit of a silly detour for sure, but there were quite a few issues with all the Lua API I had to fix and improve along the way, so I think it’s been worth it.

Correct Real Mirrors

This one is a bit experimental, and thus disabled by default, but I’d recommend giving it a try for sure, if you’re using Real Mirrors at all. All this time, they looked great, but tended to seem a bit strange if you’d look at them at grazing angles. Now, there are a couple of extra options for improving things (in place of the old “Alter FOV” checkbox, the initial attempt to try to improve their look and feel). The first new option, “Alter FOV and squeeze”, will simply try and scale reflected space a bit, but the second, “Accurate”, should fully solve the problem by  calculating the accurate portal-like reflections, with the whole world getting mirrored around the mirror plane.

There are still a few oddities: the mirror plane had to be decoupled from the actual 3d surface plane to keep adjustments working (if the 3d was used on its own, for most cars they’d mostly reflect ground or ceiling), and the whole FOV adjustment was a bit of insanity to try and get it to work, but everything should work now, and hopefully be compatible with existing configurations. Once tested and verified, we could move on and further improve both quality and accuracy (they definitely can reflect the frame around the mirror too, but for it to work nicely, it might need some car configs in the future).

Bug fixes

Thanks to all of your reports, we managed to fix a lot of bugs, including recent regressions (my apologies about those). Cars with axles should drive again (even with the “fully dynamic” experimental physics option enabled), binding something to POVs won’t crash AC anymore, holding Alt to edit two setup items at once (hovered and mirrored) should work, CSP can be used to generate previews again, rare dead freezes during loading are gone now, and a lot more. Here is the full list of changes (gist.github.com), and here is a link for a quick installation of the new build (acstuff.club).

Thank you so much for all the support! Now, it’s time to start working on the next bunch of fixes. 😅

Comments (86)

E
Edwin Killette · September 9, 2026

i downloaded this but how do I use it to update content manager?

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Syver Enstad · November 3, 2025

In race with Lotus 49 the body of the car is often invisible showing drivers just sitting in the chassis with wheels and engine. At some viewing distances the body is shown, but at many distances body is not rendered.

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Vivaio Corse Racing · October 28, 2025

Good morning, where can I download build 3465 (2.11)?

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Andras Juhasz · October 18, 2025

If I load a car it works but if I loaded up with an entire field of cars it get stuck on a black screen

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RWD_Adam · September 6, 2025

Is this the file i drop into CM to get the rain fx? Sorry for my ignorance, new to this mod!

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Max Senna · September 12, 2025

Yes supposedly it is. But it crashes CM. There hasn't been a fix for it for a while... Not sure what's going on.

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Max Senna · September 6, 2025

Is there ever going to be a fix for this? 2.11 Preview keeps crashing!

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Max Senna · August 24, 2025

Damn it, AC crashes everytime now, even when I go back to non-preview 2.11 it still crashes. Help!!

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cA traupode 93 · August 24, 2025

me too

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Maximilian Membre · August 21, 2025

petar

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Saleem · August 20, 2025

Rain is not displaying

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aXSS · August 18, 2025

everything works for me exapct rain why is that and i see no issuue

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Aaron Green · August 14, 2025

Is anyone else experiencing any issues with CM of late? I'm having all kinds of issues in relation to generating car icon badge/race numbers. Also, when I go to select a track they are no longer organised into countries, they only appear now in the ALL section. It's very strange, and fresh installs of CM have no effect.

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Badu Ferreira · August 11, 2025

The new VRC Tourers cars require Build 3065 to run with CSP. Do you think you can update the preview version to this same buld?

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Olivier Bille · August 10, 2025

Hello, I'm throwing out an idea like this, just in case, would it be possible to make smoke appear which pushes back into the cabin when drifting, the more you drift the more the smoke arrives inside.

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Gravity Spire · August 9, 2025

to anyone that has their game crash on launch disable nvidia geforce overlay in the geforce experience app.

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Reaper Fox · August 2, 2025

hello, if your game crash : the sercive : "NVIDIA LocalSystem Container" must be disable.

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דניאל טרונך · July 31, 2025

Whay does the game is red an black and white on sunrises and sunsets

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Air Dingus 1 · July 29, 2025

Hey im just having a very hard time getting everything to work correctly its all like partially working and i think some of it was not installed correctly so i was wondering if i could get some help sorry to bother.

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Rys · July 22, 2025

so i just bought this to now not even be able to load in lol

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Aden Salazar · July 14, 2025

its still crashing, i bought the subscription just for this update

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Natuned · July 12, 2025

hey i just downlaoded the csp but when it goes the shader aptches thats with the csp it crashes and just the csp version doesnt match with the game

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Tacitus Kilgore · July 19, 2025

same problem here. have you fixed it yet yourself, seeing as no one here has helped

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Mason Kolby · July 11, 2025

when i go into game i just crash

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oliver ansari · July 25, 2025

i have the same problem have you managed to fix it?

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Ferre Delronge · July 4, 2025

how to get a rainbow

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rayshawn dadon · July 3, 2025

how do i downlaod pure

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Mason Kolby · July 11, 2025

https://www.youtube.com/watch?v=T8hoAAu9w5U&t=99s

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FootF1 King · July 3, 2025

Why is the sound messed up in CSP 2.11? Is there anything i can do against it? it is also the recommended version of csp right now

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ken · July 1, 2025

音が出なくなる。何故ですか?

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Jake · June 28, 2025

I can't hear the sounds on your light patch ?? :(

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W4SABYTCH · July 2, 2025

if it cut off after some loud reverbs try to low the MASTER in your volume tabs in CM and after you can crank up the volume with windows

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Jake · June 28, 2025

Please fast repair ligicht patch:(

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Rabbimov Temurbek · June 28, 2025

not work

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Jake · June 28, 2025

not working :((

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zane · June 26, 2025

not working

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Ali Alzahrani · June 24, 2025

not working )

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Kamil Masłowski · June 23, 2025

not working

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Maurice Mooklall · June 19, 2025

my rain looks like snow.

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Brady Gejeian · June 19, 2025

you end up finding a fix?

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Luciano Azevedo · June 18, 2025

How can I purchase the car in the rainbow photo?

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RSGRAPHICS · June 16, 2025

Hello, now works ok without crashes. I need to know how I can set the weather to see a rainbow full colours? Because I can not see into some different ambient and into rain to clouds or clare changes too...

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Pierre Evers · June 16, 2025

Looking great! Thanks for your hard work :)

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明 Yu聿 · June 16, 2025

it keep crashing

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Pierre Evers · June 16, 2025

User error, runs fine here. Do a uninstall and then reinstall.

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TC · June 14, 2025

My pp filter got really messed up and all the colours are weird

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Roberto63 · June 14, 2025

Hi.....I also have this problem with the replay but I can't figure out how to solve the problem

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Luke Spiteri · June 13, 2025

mine is not working i dont know why ..

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Antonio gonzalez · June 13, 2025

hola he notado en las ultimas actualizaciones que cuando veo una repeticion con la camara tv hay fallos en el sonido de los coches, alguien sabe de donde viene la causa

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David Farrell · June 12, 2025

Somehow my ppfilter was messed up after this update. It made it super white.

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Daniel Fabijancic · June 12, 2025

I can't shift anymore. CM shows everything is fine. Paddels on wheels also don't work.

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Pierre Evers · June 16, 2025

Check your control settings, shifting works fine for me. (paddels and manual shifter)

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Unai · June 11, 2025

Me acaba de crashear la ultima version,he tenido que volver a la 0.2.9 y no me funciona la lluvia...

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Elchacal006 R6 YTB · June 11, 2025

Hi llja Jususpov aka x4fab, the app to manage the triple screen in CSP have disappeared, and i can't manage the vue with triple screen. Have you got an issue? I am on the last CSP 0.210, thks for your help and your work 👍🏽

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Mike Sprandel · June 11, 2025

F5 and F6 cameras are just flashing back to the F1 cam for me. This happens when controlled by keyboard or Unbound app in game. Reverting to 0.2.10 resolved the issue for me.

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Clem83210 · June 11, 2025

Question, it’s now the 3rd version of the CSP in a row where I don’t have the possibility to launch a session again after only doing one after starting the pc. With the 2.9 / 2.10 / 2.11. I am obliged to return to the 2.8 in order to roll. I have already reinstalled the csp and checked the integrity of the game. I don’t know what to do anymore

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Marc Babulenko · June 11, 2025

crash ias soon as I klick Go. tried all real mirror options, no difference. back to 2.10 does work again.

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LTS · June 11, 2025

disable the in-game overlay feature within the Nvidia GeForce Experience application

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Jon DeCima · June 11, 2025

Is there any hope that you will make custom driver models update to the server? Or perhaps a driver model app that creates approved customized models other drivers could see? I feel like something like this would really complete the social expression everyone is doing in projects like SRP or No Hesi

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Steph Leclair · June 11, 2025

Cant launch game, crash as soon as I hit "Go!"

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zgushonka · June 11, 2025

try to disable nVidia overlay

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Georgios Nes Papoulis · June 11, 2025

AI??? Will it EVER be fixed?

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Benovich Boucharenski · June 11, 2025

Hey guys, it seems that Reshade is not accepted anymore running with CSP? I have this error at start Error log: 00007FFB118C9BAC (dxgi): (filename not available): recvfrom 00007FFB118B04C6 (dxgi): (filename not available): recvfrom 00007FFB6A2DE8D7 (KERNEL32): (filename not available): BaseThreadInitThunk 00007FFB11616DC9 (dxgi): (filename not available): UnhookWindowsHookEx 00007FFB6BC3C5DC (ntdll): (filename not available): RtlUserThreadStart 00007FFB11611CE3 (dxgi): (filename not available): UnhookWindowsHookEx 00007FFB116340BE (dxgi): (filename not available): UnhookWindowsHookEx 00007FFB118B04C6 (dxgi): (filename not available): recvfrom 00007FFB6A2DE8D7 (KERNEL32): (filename not available): BaseThreadInitThunk 00007FFB6BC3C5DC (ntdll): (filename not available): RtlUserThreadStart 00007FFB1161DCDA (dxgi): (filename not available): UnhookWindowsHookEx 00007FFB116340BE (dxgi): (filename not available): UnhookWindowsHookEx 00007FFB118B04C6 (dxgi): (filename not available): recvfrom 00007FFB6A2DE8D7 (KERNEL32): (filename not available): BaseThreadInitThunk 00007FFB6BC3C5DC (ntdll): (filename not available): RtlUserThreadStart

A
ADoseofReelTTV · June 11, 2025

https://r2.fivemanage.com/image/mUmSr4WfPuvv.jpg Still a texture issue with some cars. This car works fine 0.2.8 - since then it's caused these triangles and weird texture bugs.

t
tanishi · June 11, 2025

Thanks, Ilja, for the quick fix. However, I can't start the game anymore. "AC\kgl.cpp (642): kglSwapBuffers AC\graphicsmanager.cpp (383): GraphicsManager::endScene AC\game.cpp (166): Game::onIdle AC\game.cpp (210): Game::run AC\acs.cpp (477): wWinMain f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c (618): __tmainCRTStartup"

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tanishi · June 11, 2025

Never mind, I fixed it. Uninstalling ReShade did the trick.

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Xavier nicolas · June 11, 2025

That's a le mans ultimate feature request I wrote explaining how and what is quad view foveated rendering https://community.lemansultimate.com/index.php?forums/feature-requests.5/

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TheCamy99 · June 11, 2025

Can confirm, the issues i had with cars not driving or turbo cars not loading is now fixed!!! thanks a lot!

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IZILAND DRIFT · June 11, 2025

Works on my computer too

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Foxiol · June 11, 2025

0.2.9 is the last stable build for me. 0.2.10 and 0.2.11 doesn't let me start races, the game crashes constantly. Tried reinstalling and such, no luck.

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Hellspec Assetto corsa · June 11, 2025

same problem also for me.

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stan · June 11, 2025

Ilja the GOAT! Thank you! Fixed the Python issues for me, as well as cars not moving despite throttle being applied..

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Fall Guy · June 11, 2025

previews are still bugged, it generates a bug with the tyres every 2nd preview

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Magic Gamer · June 11, 2025

every time i lunch a race on a server it tells me race canceleed immediatelly

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Aymen ESSADIKI · June 11, 2025

Same

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SUPERN8VA · June 11, 2025

Thanks Ilja, I hope one day you can improve the part about "smart shadows" (the shadows that chase each other, the lod and the antialiasing applied to it) I tried everything and on the internet nobody has ever solved it, I hope one day you can fix them, thanks for your work.

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DxmHbrOne · June 11, 2025

+++

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Dope Smoker · June 11, 2025

🔥 🔥 🔥

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Xavier nicolas · June 11, 2025

Hello. How can I send a feature request to ilja? Iracing just implemented quad view foveated rendering with great success by using the big brother of single pass stereo called multi view rendering.

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DxmHbrOne · June 11, 2025

I am Ilya's main VR tormentor here, please give me links and more information about the method) I will pass it on

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lameguy 36 · June 11, 2025

I love you crazy kitty!

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DxmHbrOne · June 11, 2025

an amazing person for our time IMHO)

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H00dieRyan · June 11, 2025

how do i fix the audio bug tho, anytime i use a default csp my audio doesnt cut out. I use urs, my audio cuts out when i rev high on nohesi server💔💔💔or in a tunnel. Whenever the game gets loud audio cuts out and goes completely black

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Guy Holland · June 12, 2025

I've deleted a few cars because of this 😭

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Spark · June 11, 2025

thank you so much!

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Adriana Azocar · June 11, 2025

🔥🔥🔥