MATERIAL INDICES By Olivier Saraja

Blender lets you give many different materials to a single object. The purpose is dual :
- you can get very simple meshed objects, with a very complex materials assembly that will make your simple mesh look far more furnished ;
- for highly detailed or complex modelling steps, you can create many sets of vertices in order to edit them, select them or delete them with greater ease.

Let's take again our good ol' sphere and see what can be done with it.