How to export high poly 3D models for Unity?

To export high poly 3D models for Unity, prepare them in software like Blender or Maya and save in a compatible format—FBX is most recommended (OBJ works too). Ensure clean geometry (no broken edges), intact UVs, correct normals, and properly assigned materials—these are essential for Unity to render high poly details accurately. If the model causes performance issues, bake normal or ambient occlusion maps in your modeling tool first—this preserves details without straining Unity’s performance.