Exporting blender files to FBX to scale

Technical Support Technical Support
1

Hi all. Blender is totally alien to me and I’m currently working with a blender heavy work flow that I’d like to adapt to Maya since I am much more comfortable and productive with the latter.

Specifically, I am working with the UMA plugin for the Unity game engine, which was developed with blender all along. I realize I should probably just “learn blender”, but there are productivity costs to consider at the moment.

My current issue is this:

When attempting to export the blender file that contains all of the UMA related material (skeletons, meshes, etc), I am running into a scale issue when attempting to import the asset to Maya.

Exporting the file from blender as an OBJ does not include any of the skeletal data, vertex weights, etc, and only exports the meshes as a single object, but it does so to scale.

Exporting as a .3DS exports only the high res LOD mesh, and nothing else, but does so to scale.

Exporting as an .FBX includes everything I need, but it does not do so to scale. I’ve tried playing with the export settings but I’m going crazy. Seems like no matter what I try, the character exports 1000x larger than it should (at least). These results are reflected in unity as well, where as importing the blender file directly works just fine.

I’m wondering if anyone has experience in this regard and can suggest fbx export settings for blender that could possibly resolve this issue?

Thanks in advance.

2

Play with your scene units and try FBX again.

3

The problem is that I don’t want the actual scale to change, since the system I’m using in unity is dependent on the scale of the characters being maintained. Importing the blender file directly into unity produces the right scale, for instance.

4

You are not changing the scale of the object, you need to change the units so the final scale calculation for FBX is Unity friendly, in your case that seems to be the only viable way. I do not work with Unity. Maybe someone else has a better idea for it.

5

This turned out to be correct. Once I set the units of scale in the blender scene to meters, and adjusted the fbx import settings in maya to meters as well (instead of leaving them checked as automatic), the fbx imports to maya to scale, and exports to unity properly.