`bun_zipper.ply` is taken from the [Stanford 3D Scanning Repository](https://graphics.stanford.edu/data/3Dscanrep/). In the `3dmatch_sample/` folder, a pair of scan from the `sun3d-home_at-home_at_scan1_2013_jan_1` scene in the 3DMatch dataset is provided. Descriptors calculated by using the `32_dim` pretrained network from [3DSmoothNet](https://github.com/zgojcic/3DSmoothNet) is also provided, together with the ground truth transformation.