1. A system, comprising: a processor; a memory controller responsive to said processor; and a memory device responsive to said memory controller, said memory device carrying an ordered set of instructions which, when executed, performs a method comprising: determining that an object is moving; determining the degree of motion of said object; comparing the degree of motion to a variable threshold related to the size of a primitive in the object; reducing at run time the number of primitives used to represent the moving object based on said comparing; and rendering the moving object based on the reduced number of primitives.