An apparatus comprising: a memory system storing a plurality of sequences, each sequence comprising data for reproducing a different pattern of interactions between a respective plurality of moving characters and storing a combination data structure defining for each sequence connectability of that sequence with other ones of the plurality of sequences; a processor configured to determine pair-wise combination of stored sequences, by selecting sequences for pair-wise combination that are defined as connectable by the stored combination data structure, wherein each pair-wise combination has in common at least one of their respective plurality of moving characters and configured to use determined pair-wise combinations of the stored sequences to produce and output video graphics comprising a series of sequences in which movable characters repetitively interact in different combinations.
Manufacturing Video Graphics by Joseph Henry, Hubert P. H. Shum and Taku Komura in 2012
Patent from the World Intellectual Property Organization