With the v36.00 release, we’re transitioning to the Left-Up-Forward (LUF) coordinate system. This replaces the previous Forward-Right-Up (FRU) setup from v35.00 and brings us in line with industry standards used by 3D tools like Autodesk® Maya® and Universal Scene Description (USD).
All transforms in UEFN—including those from Actors* and Verse—now use LUF coordinates. Rotations are expressed using Euler angles applied in LUF order, rather than Yaw/Pitch/Roll style.
What does this mean for your projects?
Your existing content won’t be broken or modified.
You will notice changes in how transform values appear in the editor for existing projects, including environments created with Scene Graph.
The update may require you to adjust your mental model when interpreting coordinate values and rotations.
We understand this may require some adjustment, but comprehensive resources are available for a better idea of what’s going on: Left-Up-Forward Coordinate System: Left-Up-Forward Coordinate System in Unreal Editor for Fortnite | Unreal Editor for Fortnite Documentation | Epic Developer Community
*Actors definition: https://dev.epicgames.com/documentation/uefn/unreal-editor-for-fortnite-glossary#actor