by abchouhan·Motion Graphics
Images © abchouhan. Used for product review; image policy.
Earns its place in the Blender Extensions library by pairing a dedicated .acreplay parser with a Blender importer, turning recorded laps into keyed animation and driver-ready telemetry.
AC Replay Importer brings recorded Assetto Corsa laps into Blender as animation. The project has two parts: a parser that reads .acreplay files and outputs per-driver data as .csv, and the Blender add-on that imports those .csv files onto your objects. You convert the replay first, then bring the result into Blender.
Once imported, the add-on applies location and rotation data to a car body and wheels, and it can pull in replay telemetry such as RPM, speed and damage as custom properties. Those properties can drive gauges, lights, materials and more through Blender's driver system. You work with it from View → Sidebar → Animation tab, where you point it at a .csv file and set the framerate and starting frame.
Version 0.3.0 added support for Replay Parser 0.3.0's file format, an input for the animation's start frame, and custom driver functions (ac_lut and ac_interpolate_discrete) for gauge and discrete-property animation. It is compatible with Blender 4.2 LTS and newer and released under GPL-3.0.
AC Replay Importer is best for blender artists animating cars from Assetto Corsa replay data.
AC Replay Importer is completely free to download and use.
AC Replay Importer is compatible with Blender 4.2 LTS and newer, so any release from 4.2 onward should run it. The add-on is distributed through Blender Extensions and is a small download. If you are on an older Blender build, you would need to update before installing, since versions before 4.2 fall outside the stated compatibility range. Checking your Blender version from the splash screen or Help menu confirms whether you meet the requirement before you start importing replay data.
AC Replay Importer works with .csv files rather than raw replays, so you first convert an .acreplay file into .csv using AC Replay Parser, the companion tool alongside the add-on. The parser reads an .acreplay file through its acrp executable and outputs data for each driver as .csv files. Once you have those, the add-on imports them into Blender. A video guide covers the process, and command-line options let you target a specific driver or set the output path.
AC Replay Importer lives in the Animation tab of Blender's sidebar. Open the sidebar with View → Sidebar or by pressing the N key, then find the 'AC Replay Importer' dropdown under the Animation tab. From there you click 'Import .csv' and point it to the file produced by the parser, adjust framerate and starting frame if needed, and assign the Chassis and Wheel slots. The video guide walks through the slot assignment step in more detail.
AC Replay Importer installs from inside Blender: go to Edit → Preferences → Get Extensions, search for 'AC Replay Importer', and click 'Install'. You can also install it directly through Blender Extensions, or download and install it from disk. The parser side is separate; you download and extract a 'Replay Parser' release, and building it from source requires a C++23-capable compiler (GCC recommended), zlib and CMake. Most users can rely on the released parser build rather than compiling it themselves.
AC Replay Importer is listed as free here and is released under the GNU General Public License v3.0 or later. That license covers both the Blender add-on and the replay parser. For current licensing terms, source code, and the option to support the developer, check the project's page on the developer's GitHub repository. Because it is open source under GPL-3.0, you can review and build the code yourself if you prefer to work from source.
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