scannet_shape_ids files and part segmentation

[jeonghyunkeem]

First of all, thanks for the great work! I have two questions about this repo and your paper:

1. It seems that txt files for scannet_shape_ids are required for prepare_rot_aug_data.py. But I cannot find them in the provided dataset files.
2. Could you explain more details about part segmentation on 3D scans? I'm confused if the part segmentation labels for 3d scans are generated by 1) aligning PartNet data, 2) assigning part labels to overlapped regions. Do you provide point-wise (or voxel-wise) part segmentation annotation?