Noob Q: Multires vs. Subdivide modifiers?

Hi

I am following some sculpting tutorials, and they all seem to be using Multires modifiers instead of Subdivision modifiers.

I have had a look in the manual for descriptions of both, and they both seem to do the same thing…

Anyone care to explain to me the difference between the two, and why I would use one rather than another?

Thanks!

They both divide up surface. As you found out, Multires work with sculpting. It will let you work at any level of subdivision at any time. You don’t need to be working with million polygons from beginning to end of sculpting. It will even let you go back to original shape, and let you extrude new surfaces from original object in edit mode to add new forms.