This tutorial explains step by step how to clean up the geometry of voxel models in Blender to prepare them for export to game engines like Unreal, Godot or Unity.

[Edit - If you own Avoyd we recommend exporting to glTF Binary Mesh instead. This will both optimise and export to glTF for direct use in game engines.]

The tutorial covers the following:

1. Use Avoyd to convert your voxel model to mesh for Unreal, Godot or Unity. (You can use the free to download Avoyd demo.)
2. Optimise the mesh in Blender. [Edit - You can skip this step by using Avoyd 0.26+ with Best optimisation on export.]
3. Use Blender to export to glTF for Unreal 5 and Godot, and to FBX for Unreal 4 and Unity, and follow our guides for importing and configuring the model in each engine.

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[Edit 17 Mar 2025 - Avoyd Free v0.26 introduced the Best optimisation on obj export, so you do not need to optimise the mesh in Blender. Avoyd 0.26 (paid) adds export to glTF for games.]