Using it in Unreal Engine
Unreal Engine 5 imports FBX, OBJ and glTF/GLB (through the Interchange framework).
- LODs: enable Import Mesh LODs for an FBX that contains LOD meshes, or add LOD1–LOD3 later in the Static Mesh Editor via LOD Import.
- Custom collision: FBX meshes named
UCX_<MeshName>are imported as convex collision. - Leaf materials: Blend Mode Masked, Two Sided, and the Two Sided Foliage shading model for light passing through leaves.
- Place trees with Foliage Mode or the PCG framework; foliage is rendered as instanced static meshes.
- Nanite supports masked materials since UE 5.1. Keep the classic LODs for mobile and other non-Nanite targets.




