bun_zipper.ply is taken from the Stanford 3D Scanning Repository.
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 is also provided, together with the ground truth transformation.