Fitting vertices error

[Flock1]

Hey,

Thank you for providing this work. I was wondering if I could get a solution to this error:

python fit_vertices.py onto_scan --scan_path 001_spine_2.stl --landmark_path /data/body_models/smpl/SMPL_MALE.pkl --start_from_previous_results /results/2024_03_20_10_03_50

Saving results to /SMPL-Fitting/results/2026_03_13_14_12_07
Traceback (most recent call last):
  File "fit_vertices.py", line 307, in <module>
    cfg = process_body_model_fit_verts(cfg)
  File "/SMPL-Fitting/utils.py", line 145, in process_body_model_fit_verts
    data = np.load(npz_files[0])
IndexError: list index out of range

Am I running it correctly?

[DavidBoja]

Hi @Flock1 , thanks for the interest.

Two things:

1. I assume you corrected the code so it also loads .stl files, because that is not implemented in this version and you would get an error
2. for landmark_path you are providing the SMPL.pkl instead of the landmarks. The landmark_path is the path to the file containing the (x,y,z) coordinates of your scan landmarks. Check here

But your error probably comes from the wrong start_from_previous_results folder you provided. The folder needs to contain the numpy .npz files containing the previous fitting (such as the one when you run fit_body_mode.py)