ZBrush

this has 50 Materials
your new buttons will be in the Material Pallete on the UI
hot key is the Number 6 to bring up the main Menu.

these Material images are based on best Render Mode
chose----> Render>Best
this is called Best Render Mode.

here is 500 more Material > Here

Here some sample below Render in Zbrush



And a Close up





.