Documentation

Learn how to use TreCorsa's track editor

FAQ

Frequently Asked Questions

My road corners look weird

If your road corners look unusual or don't curve smoothly, try adjusting these settings in the Road Properties panel:

  • Add more points - Adding more control points along a tight corner will help control the road curve better.
  • Use the Curve tool - Select the curve tool, click on a point, then use the mouse scroll wheel to change the curve of that point. This allows you to fine-tune the curvature at specific points along your road.

More often than not, adding more points will fix the issue.

My terrain is black

Then there is no mask for the textures. Go into Texture paint mode and make sure there is something painted there and it's not just black.

What is CSP and CM?

CM (Content Manager) is a custom launcher and content management application for Assetto Corsa. It's a powerful tool that enhances your Assetto Corsa experience.

Content Manager has a free Lite version with all key features, and a donation-based version with additional WIP features. You can download it and learn more at https://acstuff.club/app/.

Custom Shaders Patch (CSP) is an extension for Assetto Corsa that expands the game's rendering and engine capabilities. It adds advanced features such as improved lighting, reflections, shadows, post-processing effects, extended shader support, and modern visual effects like dynamic weather and rain (in preview builds). CSP is widely used by mods and significantly enhances the visual fidelity and functionality of Assetto Corsa.

Both tools are highly recommended for the best Assetto Corsa experience, and tracks exported from TreCorsa work perfectly with both Content Manager and Custom Shaders Patch!

I get "Failed to fetch kn5" during export

This error usually happens when the export can't upload or retrieve the KN5 data from the server. To resolve it:

  • Turn on "Local zip export" in the Export Center. This builds and downloads the ZIP on your device instead of going through the server, which avoids the fetch step that can fail.
  • If you're not using local export, try turning off VPN or any proxy—they can limit upload size or cause timeouts.
  • Check that your connection is stable and not restricted by firewalls or corporate limits that might block or cap large uploads.