nem0/OpenFBX

Lightweight open source FBX importer

1,351

stars

212

commits

C

primary language

May 16, 2026

updated

animation
fbx
loading
model
morph

README

Discord Chat License build status

OpenFBX

Lightweight open source FBX importer. Used in Lumix Engine and Flax Engine. It's an almost full-featured importer. It can load geometry (with uvs, normals, tangents, colors), skeletons, animations, blend shapes, materials, textures, cameras and lights.

UFBX is similar project in C. Using libdeflate for decompression.

Use the library in your own project

Note: It's recommended to be familiar with fbx format to use this library, you can read about it more here.

  1. add files from src to your project
  2. use

See demo as an example how to use the library. See Lumix Engine as more advanced use case.

Alternatively, CMake support is provided by community but it's not supported by me - @nem0.

Compile demo project

  1. download source code
  2. execute projects/genie_vs19.bat
  3. open projects/tmp/vs2019/OpenFBX.sln in Visual Studio 2019
  4. compile and run

Demo is windows only. Library is multiplatform.

ofbx

Contributors

nem0

154 commits

jeongseok-meta

10 commits

mafiesto4

8 commits

AlexMollard

6 commits

nem0/OpenFBX

Lightweight open source FBX importer

1,351

stars

212

commits

C

primary language

May 16, 2026

updated

animation
fbx
loading
model
morph

README

Discord Chat License build status

OpenFBX

Lightweight open source FBX importer. Used in Lumix Engine and Flax Engine. It's an almost full-featured importer. It can load geometry (with uvs, normals, tangents, colors), skeletons, animations, blend shapes, materials, textures, cameras and lights.

UFBX is similar project in C. Using libdeflate for decompression.

Use the library in your own project

Note: It's recommended to be familiar with fbx format to use this library, you can read about it more here.

  1. add files from src to your project
  2. use

See demo as an example how to use the library. See Lumix Engine as more advanced use case.

Alternatively, CMake support is provided by community but it's not supported by me - @nem0.

Compile demo project

  1. download source code
  2. execute projects/genie_vs19.bat
  3. open projects/tmp/vs2019/OpenFBX.sln in Visual Studio 2019
  4. compile and run

Demo is windows only. Library is multiplatform.

ofbx

Contributors

nem0

154 commits

jeongseok-meta

10 commits

mafiesto4

8 commits

AlexMollard

6 commits

Languages

C

48.9%

C++

48.0%

Lua

2.4%