Go to Window > Settings/Preferences > Plug-in Manager. Go through this tutorial to set up the mental ray Plug-in
Course and general info (tutorials, notes, etc) by Prof. Purdy in the School of Industrial Design, Georgia Tech
Course and general info (tutorials, notes, etc) by Prof. Purdy in the School of Industrial Design, Georgia Tech
Go to Window > Settings/Preferences > Plug-in Manager. Go through this tutorial to set up the mental ray Plug-in