An array containing the names of materials that can be used on a polygon mesh object, such as "Sources.Materials.DefaultLib.Blue".
The names in this array can be referenced by MaterialID.
Materials can be specified in any of these forms:
The material names are resolved at render time, so undefined material names will not show as errors in the ICE tree. If a
material name is not available at render time, the object's material is used instead.
array of strings