materials material [, [begin : end | material], ...]
materials begin : end [, [begin : end | material], ...]
An integer representing a material identifier.
An integer number representing the beginning of a range.
An integer number representing the end of a range.
Flag indicating that all materials should be active.
The materials command takes a comma-separated list of material numbers and/or ranges, where a range consists of a begin-end pair.
materials 1,3,5:10 # Activate 1,3,5,6,7,8,9, and 10
materials 44 # Activate just 44