Think about what you want to export: some scene A Scene contains the environments and menus of your game. When importing Model files into Unity from a 3D modeling application with a different scaling factor, you can convert the file units to use the Unity scale by enabling the Convert Units option.īefore you import your files into Unity, there are a number of steps you should follow to ensure that your files are optimized in the best way. The defaults for different 3D packages are as follows: Unity’s physics and lighting systems expect 1 meter in the game world to be 1 unit in the imported Model file A file containing a 3D data, which may include definitions for meshes, bones, animation, materials and textures.