SMPL to SMPL-X conversion: how to specify flat hand mean correctly?

[kaufManu]

I'm converting some SMPL sequences to SMPL-X (neutral) and would like to use the flat hand mean in SMPL-X since the input SMPL poses also have flat hands.

I've tried the following ways to specify this in the YAML config file:

body_model:
    flat_hand_mean: True

body_model:
    smplx:
         flat_hand_mean: True

However, this always resulted in (actual output differed a little bit depending on the YAML version):

omegaconf.errors.ConfigKeyError: Key 'flat_hand_mean' not in 'SMPLX'
        full_key: body_model.smplx.flat_hand_mean
        reference_type=SMPLX
        object_type=SMPLX

I've also tried this:

body_model:
    mano:
        hand_pose:
            pca:
                flat_hand_mean: True

This does not throw the above ConfigKeyError but I think it has no effect because the logger on line main:55 summarizes that the SMPLXLayer does not use the flat hand mean. Hence I ended up changing BodyModelConfig in body_model_defaults.py and added the flat_hand_mean option like this:

@dataclass
class BodyModelConfig:
    # ...
    flat_hand_mean: bool = False

which allowed me to use the first version of the YAML config file above. Also, the logger on line main:55 now outputs that the flat hand mean is being used, so this seems to do what I wanted. I just wanted to confirm that this is the way to go.

Thanks!

[ZhengdiYu]

I have the same issue, I want to alter beta to 200 dim, but changing the config file doesn't help

[Whiplash-18]

I have the same issue, I want to alter beta to 200 dim, but changing the config file doesn't help

hey, the website of SMPL has offer the SMPL of 300 principle component ，how can I use this version, change the dims of beta and the model. Is it work? Thanks!