I have a City and each building has it's own name attribute. For each named primitive I want to assign a different material, so all the buildings have variation between them. Does anyone have any ideas?

Vincent Griffith

Easiest is to use Enumerate SOP to get integer value per name and use that to construct your material name

Or you can also use random_shash() vex function to generate random number per name, modulo it by number of materials and generate name that way