Where does `pncc_code` come from?

[tldrafael]

Hey, thank you so much for sharing this work!

I have a doubt where do the values in train.configs/pncc_code.npy come from? Do you have any reference for it that I could read?

Thanks,

[cleardusk]

From http://www.cbsr.ia.ac.cn/users/xiangyuzhu/projects/3DDFA/main.htm