Exporting from Blender to Unity is a recurring question I meet all the time in various forums and Facebook groups related to modeling and Unity.
I would like to share with you my exporting workflow, which I use almost daily when I create 3D models for Unity projects. I will show the steps to export simple textured models, then move on to more complex cases with sub-meshes and PBR materials.
Step 1 – Center the mesh: set the 3D Cursor to the origin (Shift+S, Cursor to Origin), then select the mesh, press Shift+S and choose Selection to Cursor.
Step 2 – Check the Rotation and the Scale: make sure all your models have their rotation set to zero and scale set to 1. If not, apply the desired rotation and scale by pressing Ctrl+A, and selecting Rotation and Scale from the menu.
Step 3 – Set parents correctly: If you have an object with multiple sub-meshes, set them as a child of the main object by selecting first the child, then the parent and press Ctrl+P, then choose Object from the menu. Avoid multiple levels of sub-meshes.
A great example of this is a desk with drawers as child submeshes. If you have a separate submesh for the handle, that should be the sibling of the drawer instead. You can fix the hierarchy later in Unity.
Step 5 – Export with the following settings
Useful Blender add-ons
If you have a larger amount of models, don’t panic! You don’t have to export them one-by-one. I would like to mention one of my favorite Blender add-ons, FBXBundle. This add-on was published in winter 2018, developed by Hendrik-Jan Schoenmaker. It has a wonderfully simple and intuitive interface, detailed instructions and Unity support. (Currently available for version 2.79).
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