"MATPAT  MaterialID&, RGBColor&, Reflective&, Shiny&, PatternID&, TxMin, TxMax"


            This command defines a material (or changes and existing one) as a built in pattern


            MaterialID&       - is the ID (index) of the material.

            RGBColor&       - is the RGB color

            Reflective&       - 0 to 100

            Shiny&              - 0 to 100

            PatID                - 0 to 7 (pattern ID)

            TxMin               - Texture Mapping Coordinate: TxMin (normally set to zero)

            TxMax              - Texture Mapping Coordinate: TxMax

                                      (divides image based on this value. ie. 2 would double image)

                                      By swapping the values of TxMin and TXMax you can flip image