x4fab

Few quick fixes

Peer-to-peer racing, speculars in linear color space and more

Staying safe with all the content, and a teaser or two

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 bei...

Merry Christmas and Happy New Year

UPD: The previous fix was not quite enough, so here is a second attempt, preview212. My apologies, please update once more. Thank you!

Merry Christmas and Happy New Year, everyone!

For the past couple of months, we’ve been primarily working on a...

A quick fix for interiors getting wet

Finally managed to reproduce and solve the bug that I’ve been hunting for quite some time now, with car interiors getting wet in the rain in some cases (turns out, it was only happening on certain mod tracks). Also, disabling chunks optimization shouldn’t mess up some mod tracks now (previous fix wasn’t enough).

2025-10-29 22:33:15 +0000 UTC View Post

A few more fixes and a new physics core loop

Here’s another bunch of fixes, for both stability and performance. Physics should run smoother and in general consume less CPU, especially with new physics experiments (although those are disabled by default for now). Refracting headlights shouldn’t break anymore, loading should be a bit faster, new KN5 loader should better support some spec...

A few fixes, more coming soon

That’s not all, of course, more fixes are coming soon, but here is the first batch. Key fixes so far:

• Missing leaderboard, starting lights and ping should be visible again;

• Crashes on SRP servers related to Lua scripts loading some textures are fixed;

• Physics computation should be faster, with late f...

  2025-10-21 23:24:18 +0000 UTC View Post

Big rewrite

Thank you so much for your patience! After the last update, I finally decided to upgrade my hardware, and after that, I discovered that I can finally do things like recompile the entire project in just a couple of minutes (right now, Custom Shaders Patch is around 500k lines of code, so on my old laptop it was quite an undertaking). Finally, I c...

A few quick fixes

My apologies about messing up compatibility with NVIDIA overlay and Reshade, this build should work better. Also, a couple of small fixes for the new trees.

• Quick install link (acstuff.club).

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! An...

A few quick fixes

Thank you for all the reports! Still working on fixing other bugs, but here is a first batch of fixes.

Main one is that issues with custom physics and ABS (brought by fixing the way torque is being distributed in suspension to be physically accura...

New main menu

For this update, we mostly focused on Quality-of-Life improvements and fixes. Hopefully, this one will be stable enough to become the new recommended version. Although, there are a few new things too.

New main menu

Similar to the new pause menu, replaces the main menu with something a bit more fresh. To keep things familiar, the ov...

Photo mode update and advanced FFB scripting

Another update that is mostly just a bunch of fixes, but, as usual, there are some new additions too (this time, however, pretty much all of the new options are disabled by default to try and make this new build even more stable). Here are some highlights:

Expanded options for FFB scripting

API for FFB post-processin...

A couple of urgent fixes

Thank you for all the reports, they really helped us to focus on some important issues before proceeding with the addition of new features. Here are some of fixes we have been working on:

• Missing audio fixed (renaming the soundbank in 0.2.5 was a questionable idea, but with a more unique name, chances of conflicts are smaller).

  ...
  2025-01-08 00:41:02 +0000 UTC View Post

Merry Christmas and Happy New Year!

Thank you all for waiting! For this update, we decided to primarily focus on stability, but there are some interesting new additions as well.

Ice and studded tyre physics

SurfacesFX got a new addition, the new ice physics. Regular tyres wouldn’t do that much on ice, but if any ice surfaces are detected, CSP will cr...

Rally guide & some news about CM Workshop

Considering how helpful the previous guide video was, we’ve prepared another one, this time about the new rally mode. Hopefully it’ll be just as useful!

As for development, for the past couple of months we were focused on preparing a n...

Rally mode and more

For the past couple of months, we were primarily focused on a couple of things related to rally, to put Surfaces FX module adding off-road physics to a good use. One of those is a new app meant to function as a copilot, showing and voicing details about upcoming turns, and another is a new mode for a single rally stage (a more advanced rally mod...

Further improvements to LCS and SurfacesFX, online replays, radio app and a bunch of fixes

As always, it took a bit longer than I hoped, but it’s not only the fixes, there are some new quality-of-life improvements as well. And, of course, a lot of fixes, since it’s going to be the next public update too.

Linear color space and default WeatherFX style updates

Of course, there were quite a few bugs with ...

Linear color space

When it comes to rendering, Assetto Corsa always had this problem where all the shading was done in so called gamma space. That’s a common mistake (and in fact, some years ago most videogames were doing things this way), and while I became aware of the fact some time ago, only recently I realized the extent of the issue. Pretty much anything w...

Introductory guide

If you’re just getting accustomed with various Assetto Corsa mods, the whole thing might seem confusing at first, knowing what to do and in what order. In order to help my friends made an excellent video showing how to download and set everything up. Give it a watch if you need a quick introduction!

(As always, thank you for the incredib...

Happy holidays and joyful New Year!

Despite all my efforts, a few bugs managed to make it in with the last update, so here are just a few more quick bugfixes. Issues like AI drivers leaving pits at once, new option in VR tweaks messing up FFB, problems with Lua audio (including WeatherFX styles), as well as some specific crashes, should be fixed. Also, there are some small changes...

Nothing but fixes (almost)

While the previous update had quite a few fixes, unfortunately with all the new features it also introduced a bunch of new bugs, so this time I tried my best to stop myself from getting distracted and focus primarily on fixing things. Let’s see if it has made a difference, but I’m hoping CSP should be noticeably more reliable now. Of course,...

Lots of fixes

For the final stretch we focused on fixing bugs, trying to get something more stable than usual. So, there aren’t too many new features, but there are still a few.

• Windscreen reflections: a new still experimental feature of WindscreenFX adding live dynamic reflections for windscreens. The technique is somewhat unconventional, but i...
  2023-11-12 22:58:29 +0000 UTC View Post

A few small fixes

There were quite a few fixes in the last build, but unfortunately a few regressions as well, so here is a quick fix I was working on for the past few days, this one hopefully should work better.

Changes:

• Wet surfaces looking red/green fixed (debug view somehow managed to leak through rebuilding process again, need to make things ...

Finalizing update

Since the last update we were working on preparing a functional and reliable public build, so, again, mostly fixes and improvements, a lot of them related to features for developers and content creators. And now, a bit more testing and I believe this build (without rain for now) can be made public! Well, hopefully.

But, of course, as usual...

Maintanence update

Getting very close to the next public update, for this build we mostly focused on fixing all sorts of issues. A lot of internal stuff has been rewritten from scratch, a lot of bugs old and new were solved, so the whole thing should run smoother now. There are also a new things that might be quite interesting:

Car body flex...

AIs update for RainFX and some other changes

Rain is still being finalized (sorry about even its rewrite taking so long), but there are already some changes for another preview build which might be worth testing. And now I’m going to try my best to get the public release out as soon as possible, with all the changes that have been made.

Updated AI

AIs got a l...

Happy New Year!

Public update might take a bit longer than anticipated since a few more bugs have popped up, but here is a quick fix with some changes:

• RainFX: issue with distant surfaces fixed, static rain intensity set in online servers now is adjusted to keep things compatible (basically multiplied by 0.2), online servers can disable rain physics w...

Merry Christmas and Happy New Year!

Barely managed to finish the update in time, and unfortunately the public update will have to wait for another day or two, I need to do more testing and fix a couple of small issues first. There are quite a lot of new additions, and some of them might need more work.

Most important change is the update for the way tyre contact works. Thank...

Gameplay improvements, trees, new visual effects and more

Had a bit of a hiccup in performance, but things are back to proper mode of operation now, so more new features (and, of course, fixes and documentation) are coming soon! As for this update, there are still a few new interesting things:

Trees (not yet procedural)

Whole thing with trees turned out trickier than I anti...