Hello everyone !
Can somenone introduce me the concept of:
Muscle rigg , skin mesh , skeleton rig?
i’m building my first 3d model for animation , and so , mi firts rigging.
i want to know how exactly achieve it , it’d be really helpful some advises , and recomendations about where to find the information that i need to know , for example in a making of , of a short 3d film i saw something called “skin mesh” that i cant find information about .
i 'll appreciate any help 
thanks!