py_fbx_wrapper

Simple Cython wrapper for the FBX SDK to load characters with meshes into a dictionary structure. It was tested using vis_utils with files from MakeHuman but might also work with files from other sources.

You need to change path to the python environment in the files FBXWrapper.vcxproj and FBXImporterWrapper.vcxproj

Additionally the following dependencies are required:

• GLM
• FBX SDK (It was tested with version 2017)

To generate the C++ wrapper from fbx_importer.pyx, Cython needs to be installed

pip cython

Cython can then convert fbx_importer.pyx into fbx_importer.cpp which is then compiled into fbx_importer.pyd and linked with FBXImporter.lib.

<Path to Python Environment>\Scripts\cython.exe fbx_importer.pyx --cplus

To automate this step, a custom pre-build event is defined in the project file FBXImporterWrapper.vcxproj for which only the path to the environment needs to be changed.

Note the module fbx_importer.pyd can only be imported by a python script if libfbxsdk.dll is in the same directory. The projects are only configured for Release|x64 because Python does not come with debug files for Windows.

import fbx_importer

data = fbx_importer.load_fbx_file(filename)

Data contains a "skeleton", "animations" and a "mesh_list". Each entry of the mesh list contains with vertices, normals, uvs, bone ids and weights. Each animation contains the "frame_time" and a "curves" dict that stores the joint names as keys and a list of frames with "local_translation" and "local_rotation" as keys.

License

Copyright (c) 2019 DFKI GmbH.
MIT License, see the LICENSE file.