1. A method of reordering vertices of a graphics primitive, comprising: receiving a plurality of vertices of a graphics primitive, the vertices having a circular ordering, each vertex having an unknown position in the circular ordering and including coordinates with respect to a predefined origin; determining which of the vertices of the primitive is closest to the origin, the closest vertex being designated the minimum vertex; moving the minimum vertex to a first predefined position in the circular ordering; and for each next vertex in the circular ordering, moving the next vertex to a next predefined position in the ordering so that the vertices of the primitive have a prescribed ordering regardless of the order received.