Flame to SMPLX parameter convertion

[THARUNESHWAR-369]

How can i convert Flame parameters (neck pose, jaw pose, shape, expression) to smplx parameter.
@gngdb @dimtzionas @vchoutas @MichaelJBlack @nghorbani

[conallwang]

Maybe you can try https://github.com/conallwang/flame2smplx.

Unluckily, I cannot find a way to directly transfer the FLAME parameters to SMPL-X parameters. So I write a simple tool to estimate the SMPL-X parameters (with T pose) from the FLAME meshes.