Sol 2.2.3

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!!! Sol needs CSP 1.76 or later !!!
I recommend to use CSP 1.78

Sol does not bring Rain! RainFX is a part of CSP preview versions,
available here - for MONEY!

PLEASE !!! Read the install guide !!!
Sol 2.2.3 install guide

For further support, please use the 'Ask a question' button above and not the review section.

DO NOT set a higher value than "Two faces per frame" in reflections frequency:

Also lower the resolution to 1024x1024. There is no big difference visually, but it gains much more fps...
For those weather effects, you need to set the cloud's render method to 2 in Sol Config app. Then the advanced skysim weather code is running.
Your track textures are not looking like they should look.

Its actually not an error, its a feature, called "seasonal adjustments". With CSP it is possible to change the track's textures to other colors. There is a problem with CSP versions between 1.30 and 1.38, so the textures looks much darker than they should look. This is fixed with CSP version 1.39.
CM just uses the current date for the race session. If its wintertime where the track is located, textures will be changed to look like they have a snow cover.
Change the date to summertimes
In CM's Drive menu:

or directly in game:
Open the Sol_weather app and change the date:
The default Sol filter. You can change all Sol parameters. This filter has a static exposure, which is adapted for daytimes. The filter has a neutral color balance.

The filter tries to have an optimal exposure for all situations. It uses a custom Autoexposure. CSP’s emissive and bounced lights are dynamically optimized for day and night light.The filter also adapts the color balance for different light situations.

A clone of __Sol_Extra. This filter works with the Reinhard tone mapping. The goal is to have less contrast in mid and high tones.

A filter for very bright monitors. It uses SDR dynamic and emulates some HDR effects.

This filter represents the colors with an accuracy of 98%, if a sunangle of 45° is used. It uses the linear tone mapping to achieve this accuracy. Therefore, bright colors will clip.

This filter uses sensitometric tone mapping. I realized a proper gamma to be color-neutral for a wide range. In high tones (>220) it will compress, this prevents clipping.
You can customize Sol ingame with the Sol_config app:
Please install Sol manually, as it is described in the guide!


Sol is a weather simulation system for Assetto Corsa/Shader Patch

Please read the install guide
Sol 2.2.3 install guide
Sol 2.2.2 installatiehandleiding (by jfeelders)

There you will find all information about installing it, important settings to make in CM, new features and how to do troubleshooting...

Thanks to Sir Spats, who made an install tutorial and a new feature description:

You are not allowed to commercially use Sol without permission!

If you want to support Ilja, the genius who made all this possible:

If you want to support me as a patreon:

If you want to support RaceDepartment who host all your favorite RD mods:

To get older versions of Sol, visit Sol's discord channel:

Latest updates

  1. Just a little bugfix with VR and wrong exposures

    Sol 2.2.3 Please read the install guide Sol 2.2.3 install guide changelog - core: fixed VR...
  2. some small bugfixes

    Sol 2.2.2 Please read the install guide Sol 2.2.2 install guide changelog - core/CSP: added...
  3. Bugfixes and Sol Planner Improvements

    Sol 2.2.1 Please read the install guide Sol 2.2.1 install guide Sol 2.2.1...

Latest reviews

Must have and thankyou :)
Hi! idk if there's something wrong with my sol 2.2.3 but when i use rain the ground dosent get wet there's no puddle and the to make the ground wet and make it have puddle i have to put it manually ingame pls help (srry if my english is bad)
Peter Boese
Peter Boese
The rating is not for asking question. There is a button "ask a question". Even it is written "Sol does not bring rain", you downrate it, just to ask a question. Why you downrate something, if you want to get help. I don't understand the behavior behind this...
sol wont open it just goes to notepad
Peter Boese
Peter Boese
Please come to the discussion channel to solve this problem. "Ask a question" button.
Thx for updating the MAGICAL App
Must have!
Thanks again Peter!
Must have addition to AC. Thanks for the VR fix!
While it is good to keep getting updates, and the sun looks better now with pure, I'm still not seeing sunrays.
Incredible. Thank you very much!
wow wow wow thanks
Must have mod for AC!
Good evening. I followed the instructions to the letter but unfortunately I cannot select a quality preset in the sol config. nothing happens if I click on low , medium high or ultra. no impact on the visual aspect. Do you have an idea? of course I tried to reinstall but nothing to do. thank you for your help and sorry for my poor english, being french
Peter Boese
Peter Boese
please use the "ask a question" button. So we can try some things...
Great mod and absolute essential for AC. Just a shame that Racedepartment is only allowing me to download at 65kb/s even though my internet is 250MB/s and not currently under any load
Mod Sol very good Thank you very much for your job and dedication
Sol is an absolute must need for AC, it brings life to the game.

However, a month ago an issue suddenly appeared with rain/ moisture effects no longer appearing. After reinstalling both Sol and the latest lights patch, I still get the error of "Can't run weather script, with the exception always at tyre_smoke.lua:(6,0-48): ." This issue has already been mentioned in the discussion tab, however, it hasn't been resolved. It would be great if there were some suggestions for fixing this. Thanks!
Peter Boese
Peter Boese
To avoid this error, please deactivate the extented weather functions in CM's Drive settings, like it is described in the install guide on page 18! This are functions which were important for older weather mods like gbwSuite. But now they are obsolete.
My whole sky appears csp update to 0.1.69 is needed how to solve
Peter Boese
Peter Boese
maybe read the install guide?
Download button is red instead of green and SOL doesnt show up in the controller script menu of weather fx. Anyone have any idea why?
Peter Boese
Peter Boese
Please use the "ask a question" button. Then we can solve the problem in the chat...

It's fabulous.

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Peter Boese
File size
205.1 MB
First release
Last update
User rating
4.88 star(s) 935 ratings

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