Good model for your material design & research.
Model data is provided as Blender file(Blender 2.73+).
This work is licensed under a Creative Commons Attribution 4.0 International License.
Light Transport Equation Orb is modeled by https://github.com/MirageYM
Do you want to use this Orb model in your renderer? Export the model as wavefront .obj in Blender, then tinyobjloader would be your friend https://github.com/syoyo/tinyobjloader