Wanted to add that character motion vectors can be drafted/generated with
momask https://ericguo5513.github.io/momask/ there are also undocumented model
weights for momask on huggingface.co somewhere, they appear likely to be the
same as the Google drive weights. MoMask is older than it looks and there are
newer approaches but it looks easy to use. "Masking" is a way to pretrain
models by hiding some of the data and predicting that, likely stimulating a
smidge of humanlike pattern fitting to whatever the data is.
