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JCRR and LidarToolbox updates – October 2026

While most are eagerly awaiting track modding for Assetto Corsa Rally, JCRR continues to work his magic in the original Assetto Corsa. And whenever he releases a new stage we’re in for something special! Last week saw the release of Créquy – Saint-Michel-sous-Bois, a stage from Rallye Le Touquet in northern France, a region that hadn’t seen any quality track mod yet. The fast, narrow and slippery roads provide a serious challenge, and the amount of detail in the buildings, scenery and countless other elements lining the stage is simply staggering.

Work is already well underway on his next project, a new stage from the legendary Critérium des Cévennes.

Meanwhile, development of LidarToolbox has continued, with release notes available here. The manual is currently quite outdated but I hope to bring it up-to-date over the next few weeks. The plugins for Race Track Builder also received several smaller updates & fixes, and remain fully compatible with RTB v2.0.

Integrated HD lidar coverage, now also including 1m DEM sources for some regions as of LidarToolbox version 1.2:

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Release of LidarToolbox – April 2026

LidarToolbox for Track Building is now available, making it fast and easy to work with lidar data, raster DEMs and satellite imagery when creating tracks:

Developed by AC Rally Central and extensively tested by leading AC and RBR track modders, LidarToolbox enables the processing of massive datasets on standard Windows PCs, converting them into optimized terrain meshes within minutes. The tool simplifies the discovery and download of lidar data across a range of supported countries, and removes the hassle of coordinate systems and classifications. Regardless of data source, LidarToolbox simplifies workflows and eliminates the steep learning curve of traditional GIS software.

Additionally, a set of plugins for Race Track Builder has been released, enabling the use of lidar data (or raster DEM files) for highly accurate terrain modeling. Hi-res satellite imagery sources such as Google, Esri, France IGN, and Spain PNOA are also included.

The plugins are available at no additional cost with the full LidarToolbox, or can be bought separately. The toolkit will keep expanding, with new features on the way, including:

  • Zone-limited meshing & texturing
  • Mesh retopology based on road proximity and visibility
  • Integrated lidar search and download for the United States
  • A direct plugin for Blender
  • A generic LidarToolbox web server capable of streaming hi-res terrain data via WebSocket or API

A full overview of LidarToolbox features and detailed instructions can be found here.

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Assetto Corsa rallying news – January 2025

Gabiria–Legazpi may have been one of the most eagerly anticipated rally mods for AC, having raised the bar in RBR by several notches. And the conversion finished by SuperStage doesn’t disappoint:

Then JCRR brought us a great Christmas gift with the release of Joux Verte, an awesome stage from the Rallye du Mont-Blanc-Morzine. Unrelated to the (fictional) Joux Plane RBR conversion, this one is on a whole different level of detail and quality:

Never resting on their laurels, both aces are already working on new projects: SuperStage’s next release will be Roure-Beuil, a wild & remote Monte Carlo stage (prototype in first pic). JCRR too is working on a Monte Carlo project, a special one which will include 10% of each stage of the 1982 edition (2nd pic), before heading into uncharted territories (onboard in 3rd):

An interesting detail if you’re looking for realism: set track condition to Green (95%), as public roads generally have less grip than circuit tarmac.

Hopes and expectations are high with the ‘Early Access’ release of Assetto Corsa EVO, but unfortunately Kunos hasn’t confirmed any plans for rally content yet. While advanced gravel physics might be off the table, incorporating some rally cars and a multi-stage rally mode on the Eiffel map would be a natural fit. Therefore, it might be crucial to communicate the genuine interest in rallying in Assetto Corsa at every opportunity!

Update 20/1: Some digging through the game files reveals there will be a rally mode in Asetto Corsa EVO:

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Assetto Corsa rallying news – September 2024

The summer has proven to be fruitful for Assetto Corsa rallying, with the release of CSP v0.2.4 bringing not only SurfacesFX but also the new Rally Stage mode and CSP Copilot app into the public version. As to give the new CSP some proper testing, Superstage has released the much-anticipated Prunières-Embrun stage:

While JCRR continues to toil on the alpine Joux Verte stage:

Some great efforts are underway in the realm of rally car sound modding: check the latest releases from Dxply and ACP modz

Some observations on the latest CSP release:

  • The replay camera now defaults to in-car view (actually, sticks to the view used while driving). To prevent this: go to Settings > Custom Shaders Patch > General Patch Settings > find and disable “Keep camera on replay activation”
  • A few stages suddenly experience invisible bumps, for instance Muracciole at 4.3km into the stage – but this doesn’t happen with all car mods. For Muracciole this has been fixed in the latest track mod update (1.1).

Rally Stage mode

  • If the game crashes while loading in Rally Stage mode: first start the game in Hotlap or Practice mode, enable the new Rally Copilot app from the app drawer, then restart in Rally Stage mode.
  • In Rally Stage mode the car must be stopped in a zone 2-3m before the startline and the handbrake pulled to initiate countdown. An indicator hovering above the startline indicates when you’re within the starting zone.
  • The timer starts from the “Go”, not when crossing the startline! Timing in rally mode is calculated in the Rally Stage LUA code, independent from the classic Assetto Corsa timing (which is triggered by crossing the starting line). So all current timing apps will show results differing slighty from the CSP Rally Stage timing.
  • Stage & split times are saved in a database in Documents\Assetto Corsa\savedData\rally-stages . Full delta timing is not included.
  • When “Rally Stage” mode is selected in CM, automatically a new track filter “something rally” is applied. This filter will show only tracks where “rally” is one of the tags in ui_track.json (in the track\ui folder). Edit this file if your favourite rally tracks are missing, to avoid having to switch filters each time. A script to automatically fix all your tracks is available here.
  • The programmable car reset key in RallyTiming app doesn’t work in this mode at this time, but there’s an (optional) automatic car reset function.

CSP Rally Copilot

  • This is a LUA app included in the new CSP, activate by selecting the app from the app drawer. When it’s active the notes will be called automatically; no starting/stopping the calls like with the old codriver.
  • Pacenotes are automatically created from the AI line. This means there’s no recce like in the old Codriver app, but this also means Copilot cannot be used on tracks without an AI line.
  • App settings can be accessed by hovering the mouse over the screen until you find the app window; click the cog icon.
  • Pacenotes can be shown visually using an icon at the side of the screen HUD (hints) but also above the road on the spot where the note would be called (3D hints)
  • To edit pacenotes: in app settings select “create new from generated”. You’ll get a very nice 3D interface, navigate around using the same controls as in photo mode.
  • Edited pacenotes files can be found in …\Documents\Assetto Corsa\cfg\extension\state\lua\app\RallyCopilot, but they can also be exchanged online directly.
  • If you don’t get any voice:
    • try opening the app in practice mode, close the game, launch again in rally mode
    • try toggling ‘distortion off/on’ in settings
  • Here’s a number of voice packs and a small script to convert old codriver voice files into the new format. The new codriver calls are lot easier to create as just 46 samples are needed, compared to hundreds in the old system… but still a few samples required in the new system are not present in the old.
  • In general the new copilot is more user-friendly and accessible than the old app, but doesn’t allow the same level of detail

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Assetto Corsa rallying news – June 2024

Since the launch of the site 3 months ago content has been steadily growing. The track list now contains 78 tracks: 53 tarmac, 9 gravel, 3 snow and 13 rated as hillclimb. Additionally, more quality lidar data sources were added and a guide on extracting building shapes from lidar data.

But the biggest news has to be CSP developers now being committed to enhancing the rallying experience in Assetto Corsa! While still in its early stages, development of gravel physics is well underway, a CSP integrated codriver is almost ready and more features are being considered like water splashes, improved timing functionality, live spectators, …

Meanwhile excellent tarmac tracks keep coming out, with recent releases including:

Castro de Beiro by AFM Racing

Rallysprint Lesaka by Come Over Gaming

Remarkably 2 modders are independently preparing to release Urbasako Igoera/Subida a Urbasa, with MTracks set for a stunning debut:

MTracks

AD Car Track & Livery

And work on the latest stages by 2 Assetto rally stalwarts is progressing steadily:

Prunières-Embrun by SuperStage

Joux Verte by JCRR

Riba Roja by EttieApple will be a long-term project, but as we’ve seen with Riudecanyes it will surely be worth the wait. And last but not least: Superstage is taking over the conversion of Gabiria-Legazpi from Jan Kadeřábek, and will finish & publish the stage right after the release of Prunières-Embrun!

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Assetto Corsa Rally Central

This is the Assetto Corsa Rally Wiki 2.0! Bigger, better, totally independent and ad-free. As the spring of 2024 is approaching, Assetto Corsa remains the greatest rally simulator on tarmac thanks to its superb physics engine and some incredible work from the modding community. The focus will stay on tarmac as this is where Assetto Corsa excels – but AC modding really has no limits, as demonstrated by the RallyWorld Dakar mods.

All tracks from the original wiki are present, along with a number of gravel tracks and hillclimbs – many more will be added in the near future. A section on stagebuilding is in the works: at this time lidar and GIS related information, tools, and techniques are mostly ready, other tools, workflows and assetts will follow.

While JCRR just released the Mont Ventoux hillclimb we can look forward to no less than 3 “AAA” track releases in the coming months:

Gabiria-Legazpi by Jan Kadeřábek

Prunières-Embrun by SuperStage

Castro de Beiro by AFM Racing

And work has started on:

Joux Verte by JCRR

Spot the stage by EttieApple