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Beyond the Vanilla Engine

The Custom Shaders Patch (CSP) has transformed Assetto Corsa into a modern, industry-leading simulation platform. It adds support for dynamic rain FX, localized night lighting, and optimized networked physics that are not present in the base game. To use these features in a multiplayer environment, your server must be correctly configured to broadcast this specialized data to connected clients.

Difficulty

Intermediate

Time

5 Minutes

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Server-Side Activation

If you are using the Content Manager server wrapper (highly recommended for modern servers), you can enable and customize CSP features within the extra_cfg.yml file.
1

Locate extra_cfg.yml

In your Game Panel File Manager, navigate to your server’s configuration directory and open extra_cfg.yml.
2

Enable Rain FX

Find the RAIN_FX property and set it to 1. This allows the server to synchronize weather states and rainfall intensity across all drivers.
3

Enable Admin GUI

Set ALLOW_GUI_CONSOLE to 1. This provides an in-game administrative overlay for authenticated admins, allowing for real-time session management.

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Technical Requirements for Drivers

While the server can “broadcast” CSP features, the final visual output is rendered locally on each player’s computer.
Every player must have the Custom Shaders Patch (and preferably Sol or Pure) installed locally via Content Manager.

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Need Extra Help?

If you encounter any issues, our support team is ready to assist:

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Last Updated: January 2026 | Visuals: Pushing the limits of realism.