Comments (2)
Hi, here's some relations of transformations that may help clarify things.
Backward:
X(view space at t) -> root pose inverse -> X(root space at t) -> backward LBS -> X(root space at rest pose)
Forward:
X(root space at rest pose) -> forward LBS -> X(root space at t') -> root pose -> X(view space at t')
We calculate backward skinning weights with time t pose, and forward skinning weights with rest pose, and both are in the root space. In that line of code, xyz_coarse_sampled
are points in the root space at time t. Let me know if there are further questions.
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Many thanks for your clear and rapid reply!
Ah, I got it! So at the notation (# backward skinning), the 'xyz_coarse_sampled' into the lbs() is X(root space at t), and the returned 'xyz_coarse_sampled' is X(root space at rest pose). That's clear now.
Line 293 in 177a390
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